KR102160014B1 - Method for task communication on heterogeneous network and system using thereof - Google Patents

Abstract

The inter-task communication system includes a processing unit that performs a task and a process that performs inter-task communication, and the processing unit includes at least one task unit that performs a task, and information related to communication of the task. An interface information generation unit that generates interface information and a variable virtual communication module according to the interface information and performs communication using the interface information, and a general task communication API unit including a general communication API for communication, A communication intermediary unit that mediates data transmission and reception between tasks and performs a task write operation and a task read operation using a set of virtual memory functions, a service execution unit to start a communication service, and a communication method of the sending and receiving tasks in one communication. It includes an interface library unit including a virtual communication unit virtualized in a manner.

Description

Communication method and system between tasks in mixed network {METHOD FOR TASK COMMUNICATION ON HETEROGENEOUS NETWORK AND SYSTEM USING THEREOF}

The present invention relates to an inter-task communication method on a mixed network and an inter-task communication system on a mixed network. More specifically, it relates to a communication method between tasks on a mixed network in which a plurality of tasks performed by one or more devices can communicate on a mixed network in which a high performance network and a low performance network are mixed, and a communication system between tasks on a mixed network. .

A program refers to an information processing device expressed as a command so that data can be processed or calculated, output, and an operation sequence of an input device are determined and executed sequentially in order to achieve a specific purpose. A process is a computer program that is continuously executed in a computer, and refers to a unit of work in which the program itself and its state are executed in memory by running the program. For example, if you run a program multiple times, multiple processes can run in memory. A task is the smallest unit of work processed by a computer, and each program can allocate system resources through a task, and can run it. Recently, as programs composed of a plurality of tasks are becoming more common, tasks belonging to one program are operated in a plurality of devices rather than belonging to only one device. As a result, communication between tasks is also simple within one process or It is not performed in the device, but can be done in multiple devices. In addition, as the network and the Internet develop, several systems or devices communicate. This creates a system that communicates between devices not only on high-speed Internet communication, but also on a low-speed wireless sensor network. It can also be done on the device.

As the composition of communication between tasks is diversified, the communication method between tasks is also diversified, and thus there is an urgent need for a communication method and system between tasks that can use resources efficiently without high congestion even on heterogeneous and mixed networks.

Korean Laid-Open Patent Publication No. 10-2017-0030578 (2017.03.17)

Accordingly, the technical problem of the present invention was conceived in this respect, and an object of the present invention is to provide a communication system between tasks on a mixed network that facilitates communication configuration of devices operating in an environment where a high-performance network and a low-performance network are mixed. Is to do.

Another object of the present invention is to provide a communication method between tasks on a mixed network that facilitates communication configuration of devices operating in an environment where a high-performance network and a low-performance network are mixed.

The inter-task communication system for realizing the object of the present invention includes a processing unit for performing a task and a process for performing inter-task communication, and the processing unit includes at least one task unit for performing a task. , An interface information generation unit that generates interface information including information related to communication of the task, and a variable virtual communication module according to the interface information, and performs communication using the interface information, and includes a universal communication API for communication. A general purpose task communication API unit that mediates data transmission/reception between communicating tasks, and a communication mediation unit that performs a task write operation and a task read operation using a set of virtual memory functions, a service execution unit to start a communication service, and It includes an interface library unit including a virtual communication unit that virtualizes a communication method of tasks to be transmitted and received in one communication method.

In an embodiment of the present invention, the interface information generation unit may generate interface information for each process by using task mapping.

In one embodiment of the present invention, the interface information includes an identifier of a channel, information of a writer task that transmits data, information of a reader task that receives data, and the corresponding channel is used in the process. It includes channel information including information on the set of virtual memory functions to be performed, and in the case of remote communication, the communication type, communication role classification, connection method, communication detail information, and API set information of the virtual communication unit of the communication are displayed. It includes, and may include communication information that further includes information on remote communication to be used when remote communication is used for each channel.

According to one embodiment of the present invention, the universal communication API may include an identifier value of a communication channel, buffer information of data to be used for communication transmission and reception, and length information of data to be used for communication transmission and reception.

In one embodiment of the present invention, the communication intermediary unit includes a remote communication unit that mediates data transmission/reception between tasks belonging to different processes, and a virtual data copy for communication when a memory is referred to in a communication task. It may include a memory access unit.

In an embodiment of the present invention, the virtual memory function set is a first set of virtual memory functions for communication between tasks belonging to the same processing unit, and a first set of virtual memory functions for communication between tasks belonging to different processing units of the same type. It may include a second set of virtual memory functions and a third set of virtual memory functions for communication between tasks belonging to different processing units of different types.

In an embodiment of the present invention, the remote communication unit includes a transmission/reception unit that transmits and receives data during remote communication, a connection unit that performs initial communication connection with a counterpart remote process, and a writer task including an author buffer. In the case of an individual connection, a reception processing unit that processes data received by the user may include a virtual communication unit that virtualizes a communication method of tasks to be transmitted/received as a single communication method.

In an embodiment of the present invention, the transmission/reception unit includes a communication set transmission/reception unit for transmitting and receiving data in a communication set connection method for sharing all communication between a plurality of tasks through a single connection, and an individual connection method for individually connecting each task. It may include a direct transmission and reception unit for transmitting and receiving data.

In one embodiment of the present invention, the virtual communication unit creates, destroys, connects, disconnects, and accepts communication according to the communication method of the task or the process. , Create a virtual function required for the communication method from the send, receive, and wait for connection functions, and create a virtual socket for each connection between each task or a set of tasks communicating in the same manner. Can be generated.

In an embodiment of the present invention, the service execution unit starts a server for individual connection when communicating through a collective connection and a collective connection processor that directly connects the communication when communicating through a collective connection, and individual connection of the remote process. It may include a separate connection processor to process the request.

In one embodiment of the present invention, the processing unit virtualizes the communication method of the tasks to be transmitted/received as one communication method, and transmits transmission data to a remote process when performing collective connection of communication services or performing multiple individual connections simultaneously. , It may include a communication aggregation unit for transmitting the received data to the junction channel.

The inter-task communication method for realizing the object of the present invention includes the step of performing a process by the processing unit to perform inter-task communication, and the step of performing the process includes: the interface information generation unit, information related to the communication of the task. Generating interface information including, and the interface library unit generating a variable virtual communication module according to the interface information and performing communication, the step of performing the communication, the service execution unit starts a communication service A write operation of a task, including: the task unit making a request to write data to the channel using a general-purpose task communication API, and the communication intermediary unit copying the data requested to be written to the channel buffer using a set of virtual memory functions A read operation of a task including performing a data read request by the task unit using a general-purpose task communication API, and copying the read-requested data to a buffer of the task using a virtual memory function set by the communication intermediary unit. It includes performing steps.

In an embodiment of the present invention, in the step of generating the interface information, interface information for each process may be generated using task mapping.

In one embodiment of the present invention, the interface information includes an identifier of a channel, information of a writer task that transmits data, information of a reader task that receives data, and the corresponding channel is used in the process. It includes channel information including information on the set of virtual memory functions to be performed, and in the case of remote communication, the communication type, communication role classification, connection method, communication detail information, and API set information of the virtual communication unit of the communication are displayed. It includes, and may include communication information that further includes information on remote communication to be used when remote communication is used for each channel.

In one embodiment of the present invention, in the performing of the communication, the communication method of the tasks transmitted and received by the communication aggregation unit is virtualized into one communication method, and the transmission data is transmitted to a remote process, and the received data is transmitted to an appropriate channel. It may include the step of.

In one embodiment of the present invention, in the step of starting the communication service, when the communication between tasks is a collective connection and the role of a service user, the service execution unit creates communication information, and the service execution unit connects The function may further include connecting to a remote service provider, generating a virtual socket by the service execution unit, and transmitting the virtual socket to the communication aggregation unit by the service execution unit.

In one embodiment of the present invention, the step of starting the communication service includes: when the communication between tasks is a service provider, the service execution unit creates communication information of the service provider, and the service execution unit waits for connection ( listen) and the service execution unit determining whether the communication is an aggregate connection, and when the communication is determined to be an aggregate connection in the determining whether the communication is an aggregate connection, the service execution unit accepts the aggregate connection, and When the service execution unit generates a virtual socket when the collective connection is accepted and transmits it to the communication aggregation unit, and when it is determined that communication is not a collective connection in the step of determining whether the connection is the collective connection, service execution The step of accepting an additional connection, the step of creating a virtual socket when the service execution unit accepts the connection and transmitting it to the communication intermediary of the corresponding channel, and when the service execution unit delivers the socket to all channels It may include repeating the step of accepting the connection until and the step of transmitting to the communication intermediary unit of the channel.

In an embodiment of the present invention, a plurality of processing units and tasks performing inter-task communication are provided, and the tasks include a first task located in a first processing unit and a second task located in a remote processing unit, When the inter-task communication is a collective connection, the performing of the read operation of the task includes: transmitting a data read request to the transmitting/receiving unit of the first processing unit by the first task using a universal task communication API, and the first processing unit Transmitting the read request by the transceiver unit to the communication aggregation unit of the first processing unit, transmitting the read request to the communication aggregation unit of the remote processing unit by the communication aggregation unit of the first processing unit, and the communication aggregation unit of the remote processing unit to receive the read request And transmitting the data to the receiving processing unit of the remote processing unit of the corresponding channel, copying the data requested to be read by the virtual memory access unit of the remote processing unit of the corresponding channel to a temporary buffer, and the communication set of the remote processing unit from the temporary buffer Transmitting the read-requested data to a unit, transmitting the read-requested data by a communication aggregation unit of a remote processing unit to a communication aggregation unit of a first processing unit, and receiving the read-requested data by a communication aggregation unit of a first processing unit It may be a step of transmitting to a communication set transmission/reception unit of a first processing unit of a channel, and a step of copying the received read-requested data to a buffer of the first task by a virtual memory access unit of the first processing unit.

In one embodiment of the present invention, in the case of communication between tasks belonging to the same process, the step of requesting to read data is a step of requesting a data read from a channel by the task using a general task communication API. The step of copying data to the buffer may be a step in which the virtual memory access unit copies the read-requested data from the channel to the buffer of the task using the virtual memory function set.

In an embodiment of the present invention, a plurality of processing units and tasks performing inter-task communication are provided, and the tasks include a first task located in a first processing unit and a second task located in a remote processing unit, When the inter-task communication is an individual connection, the performing of the task read operation may include: transmitting a data read request to the transmitting/receiving unit of the first processing unit by the first task using a general-purpose task communication API, and the first processing unit Transmitting a read request by the transmitting/receiving unit to the receiving processing unit of the remote processing unit, receiving the read request by the receiving processing unit of the remote processing unit, copying the channel data to the temporary buffer by the virtual memory access unit of the remote processing unit, and transmitting and receiving the remote processing unit Transmitting the additional read-requested data to the transmitting and receiving unit of the first processing unit, receiving the read-requested data by the transmitting and receiving unit of the first processing unit, and the virtual memory access unit of the first processing unit to transfer the received read-requested data to the first task. It may be a step of copying to a buffer.

According to embodiments of the present invention, a communication method between tasks on a hybrid network and a system for communication between tasks on a hybrid network include a task unit, an interface information generation unit, and an interface library unit. Therefore, it is possible to automatically connect the necessary interface library code according to which device the task is on and the communication method between devices is determined.

In addition, even if communication between devices is changed due to the addition of a new communication method, the interface library unit can expand a new communication method by virtualizing the interface library.

In addition, it is possible to communicate a plurality of tasks performed by one or more devices on a mixed network in which a high-performance network and a low-performance network are mixed, including collective connection and individual connection.

1 is a block diagram illustrating a processing unit of an inter-task communication system according to an embodiment of the present invention.
2 is a block diagram illustrating an interface library unit of a communication system between tasks according to an embodiment of the present invention.
3 is a block diagram illustrating a communication intermediary of a communication system between tasks according to an embodiment of the present invention.
4 is a block diagram illustrating a remote communication unit of a communication system between tasks according to an embodiment of the present invention.
5 is a block diagram illustrating a transmission/reception unit of a communication system between tasks according to an embodiment of the present invention.
6 is a block diagram illustrating a service execution unit of a communication system between tasks according to an embodiment of the present invention.
7 is a flowchart illustrating steps of performing a process of a method for communication between tasks according to an embodiment of the present invention.
8 is a flowchart illustrating a step of generating interface information of a method for communication between tasks according to an embodiment of the present invention.
9 is a flowchart illustrating a step of performing communication in a communication method between tasks according to an embodiment of the present invention.
10 is a flowchart illustrating an operation of performing a write operation of a task in an inter-task communication method according to an embodiment of the present invention.
11 is a flowchart illustrating a step of performing a task read operation in a method of communication between tasks according to an embodiment of the present invention.
12 is a flowchart illustrating a step of performing a task read operation in a method for communication between tasks according to an embodiment of the present invention.
13 is a flowchart illustrating a step of performing a task read operation in a method for communication between tasks according to an embodiment of the present invention.
14 is a flowchart illustrating a step of performing communication in a communication method between tasks according to an embodiment of the present invention.
15 is a flowchart illustrating steps for starting a communication service in a method for communication between tasks according to an embodiment of the present invention.
16 is a flowchart illustrating steps for starting a communication service in a method for communication between tasks according to an embodiment of the present invention.
17 is a flowchart illustrating a step of performing a task read operation in a method for communication between tasks according to an embodiment of the present invention.
18 is a diagram illustrating an implementation example of a process of a method and a system for communication between tasks according to an embodiment of the present invention.
19 is a diagram illustrating an implementation example of interface information of a system and a communication method between tasks according to an embodiment of the present invention.
20 is a diagram illustrating an implementation example of interface information of a system and a communication method between tasks according to an embodiment of the present invention.
21 is a diagram illustrating an implementation example of a general-purpose task communication API of a method and system for inter-task communication according to an embodiment of the present invention.
22 is a diagram illustrating an implementation example of a virtual function of a system and a communication method between tasks according to an embodiment of the present invention.
23 is a diagram illustrating an implementation example of a virtual memory function set of a system and a communication method between tasks according to an embodiment of the present invention.
24 is a diagram illustrating an implementation example of individual connection and collective connection of a communication method and system between tasks according to an embodiment of the present invention.
25 is a diagram illustrating an implementation example of communication initialization of a system and a communication method between tasks according to an embodiment of the present invention.
26 is a diagram illustrating an implementation example of an inter-task communication method and an order of processing a data read request from a system according to an embodiment of the present invention.
27 is a diagram illustrating an implementation example of an inter-task communication method and an order of processing a data read request from a system according to an embodiment of the present invention.

The present invention will be described in detail in the text, since various modifications can be made and various forms can be obtained. However, this is not intended to limit the present invention to a specific form of disclosure, it is to be understood as including all changes, equivalents, or substitutes included in the spirit and scope of the present invention. In describing each drawing, similar reference numerals have been used for similar elements. Terms such as first and second may be used to describe various components, but the components should not be limited by the terms.

These terms are used only for the purpose of distinguishing one component from another component. The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

In the present application, terms such as "comprise" or "consist of" are intended to designate the presence of features, numbers, steps, actions, elements, parts, or a combination thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof, does not preclude in advance the possibility of being added.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms as defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in this application. Does not.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the drawings.

1 is a block diagram illustrating a processing unit of an inter-task communication system according to an embodiment of the present invention. 2 is a block diagram illustrating an interface library unit of a communication system between tasks according to an embodiment of the present invention. 3 is a block diagram illustrating a communication intermediary of a communication system between tasks according to an embodiment of the present invention. 4 is a block diagram illustrating a remote communication unit of a communication system between tasks according to an embodiment of the present invention. 5 is a block diagram illustrating a transmission/reception unit of a communication system between tasks according to an embodiment of the present invention. 6 is a block diagram illustrating a service execution unit of a communication system between tasks according to an embodiment of the present invention.

1 to 6, the inter-task communication system according to an embodiment of the present invention may include a processing unit 10.

The processing unit 10 may perform a task and a process of performing communication between tasks. A process is a computer program continuously executed in a computer, and may refer to a unit of work in which a program itself and a state of a program are executed in a memory by driving a program. There may be a plurality of the processes. There may be a plurality of processing units 10. For example, the processing unit 10 may be a multi-core processor, a plurality of processors of the same type, or a plurality of processors of different types. For example, the processing unit 10 includes a processor, a microprocessor (MPU: Microprocessing Unit), a central processing unit (CPU: Central Processing Unit), a graphic processing unit (GPU: Graphic Processing Unit), and a system-on-chip (SoC: System). On Chip), a microcontrol unit (MCU), or a low-power processing unit for a sensor, but the present invention does not limit the type, and various types of processing units 10 capable of executing processes may be used.

The process may include a task. The inter-task communication may be communication between a plurality of tasks belonging to the processing unit 10. Alternatively, the communication between tasks may be communication between tasks belonging to different processing units 10 of the same type. Alternatively, the inter-task communication may be communication between different types of tasks belonging to different processing units 10. There may be a plurality of the tasks. There may be a plurality of the processes. For example, each process may include a plurality of tasks, interface information of each task, and interface library of each task.

For example, as shown in FIG. 18, one or several processes may exist for each device, and there may be several tasks within a process, and communication between tasks is performed within a process, between processes within the same device, and between processes of different devices. Communication between tasks is indicated by one-way arrows and lines, and this line can mean a channel, communication between different devices can use various communication methods, high-performance TCP/IP-based networks and low-performance low-power sensors It can be used in a network environment in which networks are mixed, and not only networks of the same type, but also networks that have different performance or standards and operate in a limited environment may be included. In addition, the performance of devices participating in task performance may also vary, and from devices that exhibit desktop or server-level performance to portable information processing devices, smartphones, and low-power systems running an embedded operating system may also be included.

The processing unit 10 may include a task unit 100, an interface information generation unit 200, an interface library unit 300, and a virtual communication unit 400.

The task unit 100 may perform one or more tasks. A task means the smallest unit of work processed by a computer, and each program can allocate system resources through a task, and can run it. The task may perform inter-task communication using a general task communication API when inter-task communication is required. The task may be divided into a task for performing communication and a task for performing calculation.

The interface information generation unit 200 may generate interface information including information related to communication of the task. The interface information may include channel information connected between tasks, a communication method of each channel, communication connection information between processes, whether a group connection for each communication connection, and the like. The interface information includes information on a channel identifier, information on a writer task that sends data, information on a reader task that receives data, and information on a set of virtual memory functions that the channel will use in the process. Channel information to be included may be included. In the case of remote communication, the interface information includes communication type, communication role classification, connection method, communication detailed information, and function set information of the virtual communication unit 400 for each communication. It may include communication information that further includes information about remote communication.

For example, as shown in Fig. 20, when task A and task B communicate with two devices via Bluetooth, the two tasks are connected via Bluetooth, and device 1 serves as a master and device 2 serves as a slave. May have the MAC address information of device 2 to access device 2 with a MAC address of 01:23:45:67:89:0a, and in the case of Bluetooth that allows only one-to-one connection, it may have a collective connection method. . In this case, in the case of communication such as TCP/IP, since multiple connections are allowed, one of an aggregate connection and an individual connection can be selected. In the case of channel information present in each device, it is expressed as one channel in the drawing, but channel information is required for each actual device due to the characteristics of remote communication, and communication information corresponding to a corresponding channel may be connected.

The interface information generator 200 may generate interface information for each process using task mapping. Task mapping may mean connecting tasks and processes. This can determine the communication method of the task. The interface information generating unit 200 may generate interface information for each process from the task mapping and interface specification user interface (UI). For example, interface information for each process may be generated from task mapping and interface specification user interface (UI) as shown in FIG. 19. Therefore, when specifying the environment with the entire task using the task mapping and interface specification user interface, interface information for each process is generated and the information can be used in each process. For this reason, interface information for each process when the number of processes is large. It is possible to improve the problem of complicated interface information when the user inputs the task is cumbersome and the number of tasks is large.

The interface library unit 300 may generate a variable virtual communication module according to the interface information and perform communication by using it. The interface library unit 300 may include a module necessary for communication between tasks.

The interface library unit 300 may include a general purpose task communication API unit 310, a communication intermediary unit 320, and a service execution unit 330.

The general-purpose task communication API unit 310 may include a general-purpose communication API (Application Programming Interface) for communication. The universal communication API may include an identifier value of a communication channel, buffer information of data to be used for communication transmission and reception, and length information of data to be used for communication transmission and reception. Accordingly, the general-purpose task communication API may provide the same API to provide the task code author with the same communication interface development environment regardless of the platform or communication method in which the task is developed. For example, a task code writer can express communication between tasks without knowing or deciding what kind of communication is actually being made.

For example, as shown in FIG. 21, the general task communication API including MQ_RECEIVE and MQ_SEND can be used to specify communication within the task code. Here, MQ_RECEIVE is used when reading data from a channel, and MQ_SEND is used when sending data to a channel. The first parameter of MQ_RECEIVE and MQ_SEND is the channel identifier value, and this information tells which channel to receive data from and to which channel to send data. The second parameter means the buffer to receive the data or the buffer containing the data to be sent, and the last parameter means the length of data to be received or the length of data to be sent. Accordingly, in using the general-purpose task communication API, communication between tasks can be specified without information on what type of communication is used or other information necessary for communication.

The communication intermediary unit 320 mediates data transmission/reception between communicating tasks, and may perform a task write operation and a task read operation using a set of virtual memory functions. The communication intermediary unit 320 may mediate transmission/reception between two tasks connected through a channel. When the tasks for communication are present in the same process, one communication intermediary unit 320 may be used. When the tasks for communication exist in different processes, a plurality of communication intermediaries 320 may be used for each process.

The communication intermediary unit 320 may include a remote communication unit 321 and a virtual memory access unit 322.

The remote communication unit 321 may mediate data transmission/reception between tasks belonging to different processes. The remote communication unit 321 may be used when there is communication with another process. The remote communication unit 321 may include a transmission/reception unit 321-1, a connection unit 321-2, and a reception processing unit 321-3. The remote communication unit 321 may select and use the transmission/reception unit 321-1, the connection unit 321-2, and the reception processing unit 321-3 as necessary. For example, the reception processing unit 321-3 may be used in a writer task, and the virtual communication unit 400 may be used in case of an individual connection.

The transmission/reception unit 321-1 may transmit/receive data during remote communication. The transmitting/receiving unit 321-1 may change a destination for transmission and reception according to a case in which communication information of a corresponding channel is an individual connection and an aggregate connection. In the case of an individual connection, the transmission/reception unit 321-1 may directly exchange data with a remote process by using functions of the virtual communication unit 400. In the case of collective connection, the transmission/reception unit 321-1 may transmit data to the communication aggregation unit 500 and receive data from the communication aggregation unit 500.

The transmission/reception unit 321-1 may include a communication set transmission/reception unit 321-1a and a direct transmission/reception unit 321-1b.

The communication set transmission/reception unit 321-1a may transmit and receive data through a communication set connection method in which all communication between a plurality of tasks is shared through a single connection. For example, when multiple tasks communicate between two devices to support a one-to-one connection in a low-performance network, data is transmitted/received using the communication set transmitting/receiving unit 321-1a when connecting a group sharing one communication connection. can do. For another example, the communication set transmission/reception unit 321-1a may transmit and receive data through a communication set connection method to reduce the number of connections when providing communication services from multiple devices in a network that can use individual connections. have. In this case, an individual connection method may also be used. The communication set transmission/reception unit 321-1a may transmit data to be transmitted to a remote process to the communication aggregation unit or may receive data from the communication aggregation unit.

The communication set connection method refers to a method in which several tasks share one communication connection. For example, as shown in FIG. 24, when three tasks are placed in the left process and two tasks are placed in the right process, in the case of individual connections, the number of channels connected to the remote process between tasks as shown in FIG. 24(a) As many as three communication connections are created, and in the case of a collective connection, one communication connection may be created between two processes as shown in (b) of FIG. 24.

The direct transmission/reception unit 321-1b may transmit and receive data through an individual connection method for individually connecting each task. For example, the first task may be connected to the second task on a one-to-one basis. The direct transmission/reception unit 321-1b may send and receive real data through the virtual communication unit 400 on a network. For example, the direct transmission/reception unit 321-1b may individually connect each task to transmit and receive data directly to and from a counterpart task through the virtual communication unit 400.

The functions of the communication set transmission/reception unit 321-1a and the direct transmission/reception unit 321-1b may include substantially the same functions as those of the virtual communication unit 321-2. Functions of the virtual communication unit 321-2 and repeated descriptions are omitted.

The connection unit 321-2 may perform initial communication connection with a counterpart remote process. The connection part 321-2 performs communication connection. When a task is individually connected to communicate with other tasks, it actually performs a communication connection or waits for the other task's connection, and is connected through the communication aggregation unit. Settings required for connection and disconnection with the communication aggregation unit Can be done. At this time, the unit for performing the communication connection is different depending on the case of the individual connection and the case of the collective connection, and in the case of an individual connection, the communication connection with the corresponding channel of the remote process can be directly performed through the virtual communication unit 400, and the set In the case of connection, connection with the communication aggregation unit 500 may be performed.

The reception processing unit 321-3 may process data received by a writer task including an author buffer. The reception processing unit 321-3 may process a data request of an independent task. The reception processing unit 321-3 may receive a request from an independent task and return requested data. The reception processing unit 321-3 may perform a request transmitted from a remote process and transmit a result through the transmission/reception unit 321-1. In a general communication channel, there is a buffer that temporarily stores data that passes between the communicating tasks, and the size of the buffer is limited. The reception processing unit 321-3 may place an author buffer, which is such a temporary buffer, in an author channel, that is, an author task. Thus, the author task can process write requests within a process rather than remotely. If there is a temporary buffer in the reader channel, the reader can resolve the read request in-process, but the write request is issued remotely, so check if there is space in the temporary buffer and write again after a certain amount of time if the temporary buffer is full. Requests must be made again, and as a result, when the temporary buffer is full, additional communication traffic is generated each time a write request is made and a write request is generated. This problem can be solved by placing the buffer in the author channel, that is, the author task.

The virtual memory access unit 322 may copy data for communication when a memory is referred to in a communication task. The virtual memory access unit 322 may also be used for communication between tasks in the same process. For example, when communicating between tasks in the same process, the communication intermediary unit 320 may perform communication using only the virtual memory access unit 322. The virtual memory access unit 322 can be used to copy data for communication when two tasks for communication refer to the memory of the heterogeneous processing unit 10 regardless of the communication method of the two tasks. For example, the heterogeneous processing unit 10 may be a CPU and a GPU. The virtual memory access unit 322 may include a channel memory allocation (createMemory), a channel memory release (destroyMemory), a task-to-channel memory copy (copyToMemory), and a channel memory-to-task copy (copyFromMemory) function.

The virtual memory access unit 322 may include the set of virtual memory functions. The set of virtual memory functions may include memory access functions suitable for a type of communication between tasks performing communication. The set of virtual memory functions may include memory allocation (createMemory), memory release (destroyMemory), task-to-memory copy (copyToMemory), and memory-to-task copy (copyFromMemory).

The virtual memory function set may include a first virtual memory function set, a second virtual memory function set, and a third virtual memory function set. The first set of virtual memory functions may be a set of functions for communication between tasks belonging to the same processing unit 10. The second set of virtual memory functions may be a set of functions for communication between tasks belonging to different processing units 10 of the same type. The third virtual memory function set may be a function set for communication between tasks belonging to different processing units 10 of different types. For example, in the communication between a CPU and a graphics card supporting CUDA (Compute Unified Device Architecture) as shown in FIG. 23, one of the set of virtual memory functions is selected according to which processing unit 10 the positions of the communicating tasks belong to. A third virtual memory function that is a set of functions for communication between tasks belonging to different processing units 10 of different types when the left task is located on the CPU and the right task is located on the GPU. The rightmost CPU-GPU function set, which is an example of the set, is used, and usage information for the virtual memory function set can be added to the interface information. In this case, when the task on the left copies data to the channel, it is done through the memcpy function, and when the task on the right fetches data, the cudaMemcpy function can be used.

The service execution unit 330 may start a communication service. The service execution unit 330 may execute a service for a server or a process serving as a slave to establish a communication connection when using a communication network of a server-client structure or a master-slave structure. In the case of a simple one-to-one communication method other than a master-slave or a server-client, the service execution unit 330 may perform communication by determining one of them to serve as a master and a slave.

The service execution unit 330 may start a service waiting for a connection or perform an initialization task for remote communication, such as when a connection must be completed before communication between tasks is established, such as a collective connection. The service execution unit 330 is a collective connection, in the case of a service provider role (server or slave), an individual connection, in the case of a service provider role (server or slave), a collective connection, and in the case of a service user role (master or client) Can be used.

The service execution unit 330 may include an aggregate connection processing unit 331 and an individual connection processing unit 332.

The collective connection processing unit 331 may directly connect the communication when communicating through the collective connection. The aggregation connection processing unit 331 may perform an initialization task required for aggregation connection when a corresponding communication is set to perform aggregation connection. The initialization operation may mean direct connection of communication.

The individual connection processing unit 332 may start a server for an individual connection and process an individual connection request from a remote process when communicating through an individual connection. The individual connection processing unit 332 may start a server for providing an individual connection when a corresponding communication is set to make an individual connection, and process an individual connection request from a remote process.

The processing unit 10 may further include a communication aggregation unit 500.

The communication aggregation unit 500 virtualizes the communication method of the tasks to be transmitted/received as a single communication method, and transmits transmission data to a remote process when performing collective connection of communication services or performing multiple individual connections simultaneously, and received data Can be transmitted to the concatenated channel. The communication aggregation unit 500 may transmit transmission data of various tasks in a process to a remote process and transmit the received data to a suitable channel. For example, the communication aggregation unit 500 is used in a communication method that inevitably uses a collective connection, such as serial communication or Bluetooth communication, which is connected in a one-to-one manner, and uses low-performance low-power devices even in communication such as TCP/IP. It can be used when a lot of communication connections are required according to use.

The communication aggregation unit 500 may use the virtual communication unit 400. The virtual communication unit 400 communicates through each virtual socket for each connection between each task or, in the case of a collective connection, creates one virtual socket for tasks that communicate in the same manner to share data transmission/reception through the communication aggregation unit. .

In the case of an individual connection, the virtual communication unit 400 may virtualize a communication method of tasks to be transmitted and received as one communication method. The virtual communication unit 400 creates communication, destroys communication, connects, disconnects, accepts, and sends according to the communication method of the task or the process. A virtual function required for the communication method can be generated from a receive function and a connection wait function. In addition, from this, a virtual socket may be created for each connection between each task or a group connection of tasks communicating in the same manner.

The virtual communication unit 400 may selectively use only virtual functions required by a supported communication method among the functions. The virtual communication unit configures a set of functions for each communication method, supports corresponding communication through the set of functions, and a higher module can implement necessary functions regardless of the communication method from the set of functions provided by the virtual communication unit. . The virtual communication unit 400 may generate a virtual socket. Therefore, it is possible to support various communication methods that can be implemented with the virtual function as well as well-known wired and wireless network communication. For example, communication between two tasks can be implemented in the form of sharing files or serial communication through USB, as well as general network communication such as TCP/IP, Bluetooth, and ZigBee. Regardless, if it is implemented as a virtualization function, a new communication method can be supported.

There may be a plurality of virtual functions. For example, as shown in FIG. 22, the connect function may include a plurality of connection functions. The connection function may include a plurality of connection functions having different internal implementations according to a communication method. The virtual communication unit 400 may use a virtual function corresponding thereto according to a communication method. For example, as shown in FIG. 22, the Bluetooth_connect function is a virtual connection function for Bluetooth communication, the TCP_connect function is a virtual connection function for TCP communication, and the Serial_connect function is a virtual connection function for serial communication, and The connection functions are similar to each other, and only a part of the function that handles parameters or required values to be passed to the system function can be used differently. In case of serial communication, the system function to be called can be used differently. Therefore, even if the newly supported communication method is different from the conventional communication method, the usage or the system function to be called, it is possible to support communication by calling it using the connection function of the virtual communication unit 400.

The virtual communication unit 400 communicates through each virtual socket for each connection between each task or, in the case of a collective connection, creates one virtual socket for tasks that communicate in the same manner to share data transmission/reception through the communication aggregation unit. have.

The communication create function may be a function for generating and initializing communication information according to each communication method. The communication destroy function may be a function that destroys setting information according to a communication method. The connect function is a function that performs a connection with a remote process. If the connection is successful, a virtual socket may be created. The disconnect function is a function for terminating a connection with a remote process, and may destroy a virtual socket. The connection listen function may be a function that waits to receive a connection from a remote process. The accept function is a function that accepts a connection from a remote process, and when the connection acceptance is successful, a virtual socket may be created. The send function may be a function for sending data to a remote process through a virtual socket. The receive function may be a function that receives data coming from a remote process through a virtual socket.

7 is a flowchart illustrating a step (S100) of performing a process of a communication method between tasks according to an embodiment of the present invention. 8 is a flowchart illustrating a step (S110) of generating interface information of a method for communication between tasks according to an embodiment of the present invention. 9 is a flowchart illustrating a step S120 of performing communication in a communication method between tasks according to an embodiment of the present invention. 10 is a flowchart illustrating an operation S122 of performing a write operation of a task in a method for communication between tasks according to an embodiment of the present invention. 11 is a flowchart illustrating a step S123 of performing a task read operation of a method for communication between tasks according to an embodiment of the present invention. 12 is a flowchart illustrating a step S123 of performing a task read operation in a method for communication between tasks according to an embodiment of the present invention. 13 is a flowchart illustrating a step (S123) of performing a task read operation in a method for communication between tasks according to an embodiment of the present invention. 14 is a flowchart illustrating a step S120 of performing communication in a communication method between tasks according to an embodiment of the present invention. 15 is a flowchart illustrating a step (S121) for starting a communication service in a communication method between tasks according to an embodiment of the present invention. 16 is a flowchart illustrating a step (S121) for starting a communication service in a communication method between tasks according to an embodiment of the present invention. 17 is a flowchart illustrating a step S123 of performing a task read operation in a method for communication between tasks according to an embodiment of the present invention.

7 to 16, the inter-task communication method according to the present embodiment is performed in the inter-task communication system, and is substantially the same as the content performed by the inter-task communication system of FIGS. 1 to 6. Accordingly, the same components as those of the inter-task communication system of FIGS. 1 to 6 are denoted by the same reference numerals, repeated descriptions are omitted, and only the association of each step is further described.

7 to 16, the inter-task communication method according to an embodiment of the present invention includes a step S100 of performing, by the processing unit 10, a process for performing inter-task communication.

Performing the process (S100) may include generating interface information (S110) and performing communication (S120).

In the step of generating the interface information (S110), the interface information generation unit 200 may generate interface information including information related to communication of a task. In the step of generating the interface information (S110), interface information for each process may be generated using task mapping.

The interface information includes information on a channel identifier, information on a writer task that sends data, information on a reader task that receives data, and information on a set of virtual memory functions that the channel will use in the process. Channel information to be included may be included. In the case of remote communication, the interface information includes communication type, communication role classification, connection method, communication detailed information, and function set information of the virtual communication unit 400 for each communication. It may include communication information that further includes information about remote communication.

In the step of performing the communication (S120), the interface library unit 300 may generate a variable virtual communication module according to the interface information and perform communication.

The performing of communication (S120) may include starting a communication service (S121), performing a write operation of a task (S122), and performing a read operation of the task (S123).

In the step S121 of starting the communication service, the service execution unit 330 may start the communication service. In the step (S121) of starting the communication service, the service execution unit 330 may start a communication service suitable for the interface information. For example, when the communication between tasks is a collective connection, a communication service may be started by performing a communication create, a communication connection, an execution of a communication aggregation unit, and a socket transfer.

Performing the write operation of the task (S122) may include requesting to write data (S122-1) and copying the data requested to be written (S122-2). When a task transmits data to a task in the same process, the step of requesting to write the data (S122-1) and the step of copying the write-requested data (S122-2) may be sequentially performed.

In the step of making the data write request (S122-1), the task unit 100 may make a data write request to the channel using the general task communication API.

In the step of copying the write-requested data (S122-2), the communication intermediary unit 320 may copy the write-requested data to a buffer of the channel using a set of virtual memory functions. In the copying of the write-requested data (S122-2), a function of copying from a task to a memory among functions of the virtual memory access unit 322 may be used. In the step of copying the write-requested data (S122-2), the write-requested data may be copied from the task to the buffer of the channel. In this case, the set of virtual memory functions may be selectively used according to a relationship between the processing unit 10 to which tasks communicating between tasks belong. For example, if the tasks do not exist in the same processing unit, a third set of virtual memory functions may be used. For example, the communication intermediary unit 320 may copy data requested to be written from a task to a buffer of a channel by using a function belonging to a set of virtual memory functions dependent on a processing device among task-to-memory copy functions.

Performing the read operation of the task (S123) may include requesting to read data (S123-1) and copying the data requested to be read (S123-2). The step of requesting to read the data (S123-1) and the step of copying the read-requested data (S123-2) may be sequentially performed.

In the step of making the data read request, the task unit 100 may make a data read request using the general task communication API. In the step of copying the read-requested data (S123-2), the communication intermediary unit 320 may copy the read-requested data to a buffer of a task using a set of virtual memory functions. The communication intermediary unit 320 may use a copy function from a memory to a task. In this case, the set of virtual memory functions may be selectively used according to a relationship between the processing unit 10 to which tasks communicating between tasks belong.

The step of performing a read operation of the task (S123) is a step (S123a-1) of requesting a data read to a channel in case of communication between tasks belonging to the same process, and the step of copying the data to the buffer of the task is read It may be a step of copying the requested data from the channel to the buffer of the task (S123a-2). In the step of requesting data read from the channel (S123a-1), the task may make a data read request to the channel using a general task communication API. In the step of copying the read-requested data from the channel to the task buffer (S123a-2), the virtual memory access unit 322 may copy the read-requested data from the channel to the task buffer using a virtual memory function set. .

The processing unit 10 and a plurality of tasks for inter-task communication may include a first task located in the first processing unit 10 and a second task located in the remote processing unit 10. .

When the communication between the tasks is an individual connection, the step of performing a read operation of the task (S123) includes transmitting a data read request to the transmission/reception unit of the first processing unit (S123b-1), and a read request to the reception processing unit of the remote processing unit Transmitting (S123b-2), receiving a read request (S123b-3), copying channel data to a temporary buffer (S123b-4), transmitting the read-requested data to the transmitting and receiving unit of the first processing unit Step (S123b-5), receiving the read-requested data (S123b-6), and copying the read-requested data to the buffer of the first task (S123b-7), the steps are performed sequentially Can be.

In the step of transmitting a data read request to the transmission/reception unit of the first processing unit (S123b-1), the first task reads data to the transmission/reception unit 321-1 of the first processing unit 10 using a general-purpose task communication API. You can send a request. In the step of transmitting a read request to the reception processing unit of the remote processing unit (S123b-2), the transmission/reception unit 321-1 of the first processing unit 10 is transferred to the reception processing unit 321-3 of the remote processing unit 10. You can send a read request.

In the step of receiving the read request (S123b-3), the reception processing unit 321-3 of the remote processing unit 10 may receive the read request. In the step of copying the channel data to the temporary buffer (S123b-4), the virtual memory access unit 322 of the remote processing unit 10 may copy the channel data to the temporary buffer. In the step of copying the channel data to the temporary buffer (S123b-4), the virtual memory access unit 322 of the remote processing unit 10 copies the channel data to the temporary buffer using a copyFromMemory function. can do. In the step of transmitting the read-requested data to the transmission/reception unit of the first processing unit (S123b-5), the transmission/reception unit 321-1 of the remote processing unit 10 transmits the data requested to be read to the transmission/reception unit of the first processing unit 10 It can be transmitted to (321-1). In the step of transmitting the read-requested data to the transmitting/receiving unit of the first processing unit (S123b-5), the direct transmitting/receiving unit 321-1b of the transmitting/receiving unit 321-1 of the remote processing unit 10 receives the read-requested data. 1 It may be transmitted directly to the transmission/reception unit 321-1b of the transmission/reception unit 321-1 of the processing unit 10.

In the step of receiving the read-requested data (S123b-6), the transmission/reception unit 321-1 of the first processing unit 10 may receive the read-requested data. In the step of copying the read-requested data to the buffer of the first task (S123b-7), the virtual memory access unit 322 of the first processing unit 10 copies the received read-requested data to the buffer of the first task can do. In this case, a function copyFromMemory may be used among the set of virtual memory functions.

For example, as shown in FIG. 26, in the step of performing a read operation of the task (S123) when the communication between the tasks is an individual connection, the general task communication API unit 310 of the original task and the direct The transmission/reception unit 321-1b, the direct transmission/reception unit 321-1b of the author task, the reception processing unit 321-3 of the author task, and the virtual memory access unit 322 of the author task are sequentially performed, and the read request In order to return the data, the author task's receiving processing unit 321-3, the author's direct sending/receiving unit 321-1b, the original task's direct sending/receiving unit 321-1b, and the original task's virtual memory access unit ( 322) and the general-purpose task communication API unit 310 of the original task may be sequentially performed.

The step of performing the communication (S120) may further include a step (S124) of transmitting transmission data to a remote process and transmitting the received data to a suitable channel. In the step (S124) of transmitting the transmission data to a remote process and transmitting the received data to a suitable channel (S124), the communication method of the tasks transmitted and received by the communication aggregation unit 500 is virtualized as a single communication method, and the transmitted data is remotely processed. And transmits the received data to an appropriate channel.

When the communication between the tasks is a collective connection and the role of a service user, the step of starting the communication service (S121) includes the step of creating communication information (S121a-1), and the step of connecting with a remote service provider ( S121a-2), generating a virtual socket (S121a-3), and transmitting the virtual socket to the communication aggregation unit (S121a-4), and the steps may be sequentially performed.

In the step of creating the communication information (S121a-1), the service execution unit 330 may create the communication information. In the step of connecting with the remote service provider (S121a-2), the service execution unit 330 may connect with the remote service provider through a connect function. In the step of generating the virtual socket (S121a-3), the service execution unit 330 may generate the virtual socket. In the step of transmitting the virtual socket to the communication aggregation unit (S121a-4), the service execution unit 330 may transmit the virtual socket to the communication aggregation unit 500.

In the case where the task plays the role of a service provider in the inter-task communication, the step of starting the communication service (S121) is a step of creating communication information of the service provider (S121b-1), waiting for connection (listen) It may include a step (S121b-2) and a step (S121b-3) of determining whether the connection is set. In this case, when the communication is determined to be a collective connection in the determining whether the communication is the collective connection (S121b-3), the step of starting the communication service (S121) includes accepting the collective connection (S121b-4) and It may further include creating a virtual socket and transmitting it to the communication aggregation unit (S121b-5), and the steps may be performed sequentially. At this time, when it is determined that the communication is not the collective connection in the determining whether the communication is the collective connection (S121b-3), the step of starting the communication service (S121) is the step of accepting the connection (S121b-6). , The step of transmitting to the communication intermediary of the channel (S121b-7) and repeating (S121b-8) may be further included, and the steps may be performed sequentially.

The service provider is the same for individual connection and collective connection until communication creation and connection wait (listen), but in the case of a collective connection, after one acceptance, the communication aggregation unit 500 is executed, and the acquired virtual socket Is transmitted to the communication aggregation unit 500, and in the case of an individual connection, a step (S121b-8) of repeating until all channels between the two processes are connected may be performed to continuously accept a new connection.

The service execution unit 330 may use different sub-modules according to the connection method because the operation is different according to the case of the individual connection and the case of the collective connection. A module handling a connection related to the collective connection may use the collective connection processing unit 331, and the individual connection processing unit 332 may be used to execute a service for an individual connection.

In the step of creating the communication information (S121a-1), the service execution unit 330 may create the communication information. In the step of listening for connection (S121b-2), the service execution unit 330 may listen for connection. In determining whether the communication is a collective connection (S121b-3), the service execution unit 330 may determine whether the communication is a collective connection. In the step of accepting the collective connection (S121b-4), the service execution unit 330 may accept the collective connection. In the step of creating the virtual socket and transmitting it to the communication aggregation unit (S121b-5), the service execution unit 330 creates a virtual socket when the aggregation connection is accepted and transmits it to the communication aggregation unit 500. I can. In the step of accepting the connection (S121b-6), the service execution unit 330 may accept the connection. In the step of transmitting to the communication brokerage unit of the channel (S121b-7), when the connection is accepted by the service execution unit 330, a virtual socket may be created and transmitted to the communication brokerage unit 320 of the corresponding channel. have. In the repeating step (S121b-8), the service execution unit 330 accepts the connection until the socket is delivered to all channels (S121b-6) and transmits the connection to the communication broker of the channel. Step (S121b-7) may be repeated.

When the communication between the tasks is a collective connection, the step of performing a read operation of the task (S123) is a step of transmitting a data read request to the transmission/reception unit 321-1 of the first processing unit 10 (S123c-1). , Receiving a read request and transmitting it to the communication aggregation unit 500 of the first processing unit 10 (S123c-2), transmitting the read request to the communication aggregation unit 500 of the remote processing unit 10 (S123c-3), receiving a read request and transmitting the corresponding channel to the reception processing unit 321-3 of the remote processing unit 10 (S123c-4), the virtual memory access unit of the remote processing unit 10 Copying the read-requested data to a temporary buffer (S123c-5), transmitting the read-requested data to the communication aggregation unit 500 of the remote processing unit 10 (S123c-6), the first Transmitting the read-requested data to the communication aggregation unit 500 of the processing unit 10 (S123c-7), and transmitting the corresponding channel to the communication set transmission/reception unit 321-1a of the first processing unit 10 (S123c-8) and copying by the virtual memory access unit 322 of the first processing unit 10 to the buffer of the first task (S123c-9), and the steps are sequentially performed. Can be.

In the step of transmitting a data read request to the transmission/reception unit 321-1 of the first processing unit 10 (S123c-1), the first task transmits and receives the first processing unit 10 using a general-purpose task communication API. A data read request may be transmitted to the unit 321-1. In the step of receiving the read request and transmitting it to the communication aggregation unit 500 of the first processing unit 10 (S123c-2), the transmission/reception unit 321-1 of the first processing unit 10 sends the read request It may be received and transmitted to the communication aggregation unit 500 of the first processing unit 10. In the step of transmitting a read request to the communication aggregation unit 500 of the remote processing unit 10 (S123c-3), the communication aggregation unit 500 of the first processing unit 10 communicates with the remote processing unit 10 A read request may be transmitted to the aggregation unit 500.

In the step of receiving the read request and transmitting it to the reception processing unit 321-3 of the remote processing unit 10 of the corresponding channel (S123c-4), the communication aggregation unit 500 of the remote processing unit 10 The request may be received and transmitted to the reception processing unit 321-3 of the remote processing unit 10 of the corresponding channel. In the step of copying the data requested to be read by the virtual memory access unit 322 of the remote processing unit 10 to a temporary buffer (S123c-5), the virtual memory access unit 322 of the remote processing unit 10 of the corresponding channel Data requested to be read can be copied to a temporary buffer. In this case, a copyFromMemory function among the set of virtual memory functions may be used. In the step of transmitting the read-requested data to the communication aggregation unit 500 of the remote processing unit 10 (S123c-6), the transmission/reception unit 321-1 of the remote processing unit 10 performs remote processing from the temporary buffer. The read-requested data may be transmitted to the communication aggregation unit 500 of the unit 10. In the step of transmitting the read-requested data to the communication aggregation unit 500 of the first processing unit 10 (S123c-7), the communication aggregation unit 500 of the remote processing unit 10 performs the first processing unit 10 The read-requested data may be transmitted to the communication aggregation unit 500 of ).

In the step of transmitting the corresponding channel to the communication set transmission/reception unit 321-1a of the first processing unit 10 (S123c-8), the communication aggregation unit 500 of the first processing unit 10 requests the read Data may be received and transmitted to the communication set transmission/reception unit 321-1a of the first processing unit 10 of the corresponding channel. In the step of copying the virtual memory access unit 322 of the first processing unit 10 to the buffer of the first task (S123c-9), the read-requested data is accessed by the first processing unit 10 The unit 322 may copy to the buffer of the first task. In this case, a copyFromMemory function among the set of virtual memory functions may be used.

For example, as shown in FIG. 27, in the step of performing a read operation of the task (S123) when the communication between the tasks is a collective connection, the general task communication API unit 310 of the original task and the communication of the original task A set transmission/reception unit 321-1a, a communication aggregation unit 500 for an original task, a communication aggregation unit 500 for an author task, a communication set transmission/reception unit 321-1a for an author task, a reception processing unit 321- for an author task 3) and the virtual memory access unit 322 of the author task are sequentially performed, and the communication set transmission/reception unit 321-1a of the author task and the communication aggregation unit 500 of the author task are performed in order to return the data requested to read. ), the communication aggregation unit 500 of the original task, the communication set transmission/reception unit 321-1a of the original task, the virtual memory access unit 322 of the original task, and the general task communication API unit 310 of the original task sequentially Can be done.

According to embodiments of the present invention, a method and system for communication between tasks may perform communication by creating and using a variable virtual communication module according to whether a collective connection, an individual connection, or a remote process exists. Accordingly, communication between various types of tasks is supported, and efficient communication can be supported by using an optional module.

Although the above has been described with reference to embodiments, those skilled in the art can variously modify and change the present invention without departing from the spirit and scope of the present invention described in the following claims. You will understand that there is.

10: processing unit
100: task unit
200: interface information generation unit
300: interface library unit
400: communication aggregation unit

Claims (20)

A processing unit that performs a task and a process for performing communication between tasks,
The processing unit,
At least one task unit for performing a task;
An interface information generation unit that generates interface information including information related to communication of the task;
A virtual communication module that changes the communication method of the task according to the channel information connected between the tasks included in the interface information, the communication method of each channel, the communication connection information between processes, and the information on whether a group connection for each communication connection is made. A general-purpose task communication API that creates and uses it to perform communication, and includes a general-purpose communication API for communication, mediates data transmission/reception between communication tasks, and a memory allocation (createMemory) function, a memory release (destroyMemory) function, a task The task write operation is performed using the task-to-memory copy (copyToMemory) function among a set of virtual memory functions including a copyToMemory function and a copyFromMemory function. An interface library unit including a communication intermediary unit for performing a read operation of a task using a copyFromMemory function and a service execution unit for starting a communication service; And
Inter-task communication system comprising a virtual communication unit for virtualizing a communication method of the tasks to be transmitted and received in one communication method.
The inter-task communication system of claim 1, wherein the interface information generation unit generates interface information for each process using task mapping.
The method of claim 1, wherein the interface information,
Channel information including the identifier of the channel, information on the writer task sending data, information on the reader task receiving data, and information on the set of virtual memory functions that the channel will use in the process Including,
In the case of remote communication, the type of communication used for each communication, the classification of the communication role, the connection method, communication details, and function set information of the virtual communication unit of the corresponding communication are included. Inter-task communication system that includes communication information to include.
The inter-task communication system of claim 1, wherein the universal communication API includes an identifier value of a communication channel, buffer information of data to be used for communication transmission/reception, and length information of data to be used for communication transmission/reception.
The method of claim 1, wherein the communication intermediary unit,
A remote communication unit that mediates data transmission/reception between tasks belonging to different processes; And
Inter-task communication system including a virtual memory access unit that copies data for communication when a memory is referred to in a communication task.
The method of claim 5, wherein the set of virtual memory functions,
A first set of virtual memory functions for communication between tasks belonging to the same processing unit;
A second set of virtual memory functions for communication between tasks belonging to different processing units of the same type; And
Inter-task communication system including a third set of virtual memory functions for communication between tasks belonging to different processing units of different types.
The method of claim 5, wherein the remote communication unit,
A transceiver for transmitting and receiving data during remote communication;
A connection unit for performing initial communication connection with a counterpart remote process; And
Task-to-task communication system including a reception processing unit that processes data received by a writer task including an author buffer.
The method of claim 7, wherein the transmission and reception unit,
A communication set transmission/reception unit for transmitting and receiving data in a communication set connection method for sharing all communication between a plurality of tasks through one connection; And
Task-to-task communication system including a direct transmission/reception unit for transmitting and receiving data in an individual connection method that connects each task individually.
The method of claim 1, wherein the virtual communication unit creates, destroys, connects, disconnects, accepts, and transmits communication according to a communication method of the task or the process. A task that creates a virtual function required for the communication method from the send), receive, and wait for connection functions, and creates a virtual socket for each connection between each task or a set of tasks communicating in the same manner from this Inter-communication system.
The method of claim 1, wherein the service execution unit,
A set connection processing unit for directly connecting the communication when communicating through a set connection; And
When communicating over individual connections, a task-to-task communication system that includes an individual connection processor that starts a server for the individual connection and processes individual connection requests from remote processes.
The method of claim 1, wherein the processing unit virtualizes the communication method of the tasks to be transmitted/received as one communication method and transmits transmission data to a remote process when performing collective connection of communication services or performing multiple individual connections simultaneously. A system of communication between tasks containing.
The processing unit includes performing a process of performing communication between tasks,
Performing the process includes;
Generating, by the interface information generation unit, interface information including information related to communication of the task; And
The interface library unit changes the communication method of the task according to the channel information connected between tasks included in the interface information, the communication method of each channel, the communication connection information between processes, and information on whether a group connection for each communication connection is made. Including the step of creating a communication module and performing communication,
The step of performing the communication,
Step for the service execution unit to start the communication service;
The task unit makes a request to write data to the channel using the general task communication API, and the communication intermediary unit performs a virtual memory allocation (createMemory) function, a memory release (destroyMemory) function, a task-to-memory copy (copyToMemory) function, and a memory-to-task. Performing a write operation of a task including copying data requested to be written to a buffer of a channel using a copyToMemory function from among a set of memory functions including a copy (copyFromMemory) function; And
The task unit makes a data read request using the general task communication API, and the communication intermediary unit performs a memory allocation (createMemory) function, a memory release (destroyMemory) function, a task-to-memory copy (copyToMemory) function, and a memory-to-task copy (copyFromMemory) function. Between tasks including performing a read operation of a task, including copying the read-requested data from the memory to a task buffer using a copyFromMemory function among a set of virtual memory functions including a) function Communication method.
The method of claim 12, wherein in the generating of the interface information, the interface information is generated for each process by using task mapping.
The method of claim 12, wherein the interface information,
Channel information including the identifier of the channel, information on the writer task sending data, information on the reader task receiving data, and information on the set of virtual memory functions that the channel will use in the process Including,
In the case of remote communication, the type of communication used for each communication, the classification of the communication role, the connection method, communication details, and function set information of the virtual communication unit of the corresponding communication are included. Inter-task communication method including communication information to include.
The method of claim 12, wherein the performing of the communication comprises virtualizing a communication method of tasks transmitted and received by the communication aggregation unit into a single communication method and transmitting transmission data to a remote process.
The method of claim 15, wherein the step of starting the communication service is when the communication between the tasks is a collective connection and a role of a service user,
Generating communication information by a service execution unit;
Connecting, by a service execution unit, a remote service provider through a connection function; And
Creating a virtual socket by the service execution unit; And
Inter-task communication method further comprising the step of the service execution unit transmitting the virtual socket to the communication aggregation unit.
The method of claim 15, wherein the step of starting the communication service is when the inter-task communication is a service provider,
Generating, by a service execution unit, communication information of a service provider;
Waiting for connection by the service execution unit; And
The service execution unit includes the step of determining whether the communication is a collective connection,
In the step of determining whether the connection is a collective connection, when the communication is determined to be a collective connection,
The service execution unit accepting the collective connection; And
When the service execution unit accepts the collective connection, creating a virtual socket and transmitting it to the communication aggregation unit,
When it is determined that communication is not a collective connection in the step of determining whether the connection is a collective connection,
Accepting the connection by the service execution unit;
Creating a virtual socket when a connection is accepted by the service execution unit and transmitting it to a communication intermediary unit of a corresponding channel; And
And repeating the step of accepting the connection until the service execution unit has delivered the socket to all channels and transmitting the step to the communication intermediary unit of the channel.
The method of claim 15, wherein the processing unit and the task for communicating between the tasks are plural, and the tasks are,
A first task located in the first processing unit; And
Including a second task located in the remote processing unit,
When the communication between the tasks is a collective connection, performing a read operation of the task,
Transmitting, by the first task, a data read request to a transmission/reception unit of a first processing unit using a general purpose task communication API;
Receiving the read request by a transmitting/receiving unit of a first processing unit and transmitting it to a communication aggregation unit of a first processing unit;
Transmitting, by the communication aggregation unit of the first processing unit, a read request to the communication aggregation unit of the remote processing unit;
Receiving the read request by the communication aggregation unit of the remote processing unit and transmitting the received read request to the receiving processing unit of the remote processing unit of the corresponding channel;
Copying data requested to be read by a virtual memory access unit of a remote processing unit of a corresponding channel to a temporary buffer;
Transmitting, by a transmission/reception unit of a remote processing unit, the read-requested data from the temporary buffer to a communication aggregation unit of a remote processing unit;
Transmitting, by a communication aggregation unit of a remote processing unit, the read-requested data to a communication aggregation unit of a first processing unit;
Receiving the read-requested data by a communication aggregation unit of a first processing unit and transmitting the data to a communication aggregation transmission/reception unit of a first processing unit of a corresponding channel;
Inter-task communication method comprising the step of copying the received read-requested data to a buffer of a first task by a virtual memory access unit of a first processing unit.
The method of claim 12, wherein in the case of communication between tasks belonging to the same process,
The step of making the data read request is a step in which the task makes a data read request to the channel using a general task communication API,
The copying of the read-requested data to the task buffer is a step in which a virtual memory access unit copies the read-requested data from a channel to a buffer of a task using a set of virtual memory functions.
The method of claim 12, wherein the processing unit and the task for communicating between the tasks are plural, and the tasks are,
A first task located in the first processing unit; And
Including a second task located in the remote processing unit,
When the communication between the tasks is an individual connection, the step of performing a read operation of the task,
Transmitting, by the first task, a data read request to a transmission/reception unit of a first processing unit by using a general purpose task communication API;
Transmitting a read request by a transmitting/receiving unit of the first processing unit to a receiving processing unit of the remote processing unit;
Receiving the read request by a reception processing unit of a remote processing unit;
Copying the channel data to the temporary buffer by the virtual memory access unit of the remote processing unit;
Transmitting the data requested to be read by the transmission/reception unit of the remote processing unit to the transmission/reception unit of the first processing unit;
Receiving the read-requested data by a transmission/reception unit of a first processing unit; And
Inter-task communication method comprising the step of copying the received read-requested data by a virtual memory access unit of a first processing unit to a buffer of a first task.

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