CN115934365A - Task scheduling coupling system applied to CPU - Google Patents
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Abstract
The invention provides a task scheduling coupling system applied to a CPU (central processing unit), which comprises a server, a CPU module, an occupation detection module, a priority management module and a response management module, wherein the occupation detection module is used for detecting threads of the CPU module so as to obtain the execution state of each thread of the CPU module, the priority management module is used for detecting each task processed by the CPU module so as to obtain the priority corresponding to each processed task, and the response management module is used for collecting task data of the occupation detection module and the priority management module and evaluating the current task according to the collected task data. According to the invention, through the mutual cooperation of the task management unit and the evaluation unit, the thread in the task execution process is evaluated, so that the high efficiency and the accuracy of the whole system for task scheduling are improved, and the whole system is ensured to automatically and dynamically schedule the task.
Description
Technical Field
The invention relates to the technical field of CPU resource allocation, in particular to a task scheduling coupling system applied to a CPU.
Background
The CPU module is a digital operation controller with a microprocessor and used for automatic control, controls various types of production equipment through digital or analog input and output, and is an indispensable part in the field of industrial automatic control. At present, the production equipment is basically provided with traditional CPU module equipment or CPU modules based on other foreign main control chips such as Intel, ARM and the like. The traditional CPU module and the control circuit are connected in a wired mode, wiring is complex, time and labor are wasted, and the transmission distance is limited by the length of the wire; and the CPU module based on the foreign main control chip is easily limited by foreign monopoly.
For example, CN112130977B in the prior art discloses a task scheduling method, apparatus, device and medium, where a parallel programming language divides an initial task into multiple sub-tasks that can be executed in parallel, and an operating system allocates the sub-tasks to each CPU according to hardware conditions. However, in this allocation mode, the operating system scheduling module only schedules the subtasks mechanically, which may cause frequent access operations between the subtasks running inside different CPUs when the subtasks with higher coupling are allocated to different CPUs, resulting in a problem of subtask blocking, thereby causing low task execution efficiency, further causing a reduction in data processing efficiency of the entire computer system, and reducing performance of the computer system.
Another typical task scheduling method disclosed in the prior art, such as CN111026514B, is that when the task amount of the task to be processed is large, such as large-scale machine learning data needs to be processed, the above-mentioned manner of performing task allocation and scheduling by using the main processor has low efficiency, which affects the processing efficiency of the computer system.
Referring to a distributed task scheduling method and a task scheduling system disclosed in the prior art as CN102387208B, after receiving a task end response of the leading task machine, the data management center reads the stored task table, and then sends a task start instruction to a subsequent task machine corresponding to the leading task machine according to the dependency relationship between tasks in the task table, so that the subsequent task machine executes a corresponding task. The multiple task machines do not communicate directly with each other. The above conventional task management method has the following problems: and (1) timing scheduling can be only carried out on a single task. 2) During the execution of the task machine, if the task fails, an alarm cannot be defined. (3) The task is maintained and managed without a uniform interface, a user must log in an operated task machine to manually check the task machine through a command line, and under the condition that the number of the task machines and the number of the tasks are large, the time and the labor are consumed very much, and the level of automatic management cannot be achieved.
The invention is made in order to solve the problems that the interactivity of executed tasks is poor, the intelligence degree is low, the execution of the tasks cannot be dynamically adjusted, the task scheduling cooperativity is poor, the task execution efficiency is low and the like in the field.
Disclosure of Invention
The invention aims to provide a task scheduling coupling system applied to a CPU (central processing unit) aiming at the defects at present.
In order to overcome the defects of the prior art, the invention adopts the following technical scheme:
a task scheduling coupling system applied to a CPU comprises a server, and further comprises an occupation detection module, a priority management module and a response management module, wherein the server is respectively connected with the occupation detection module, the priority management module and the response management module, the occupation detection module is used for detecting threads of the CPU module so as to obtain the execution state of each thread of the CPU module, the priority management module is used for detecting each task processed by the CPU module so as to obtain the priority corresponding to each processed task, and the response management module is used for collecting the execution state data of the occupation detection module and the task data of the priority management module and evaluating the task processed by the CPU module according to the collected state data and task data;
the response management module comprises a task management unit and an evaluation unit, wherein the task management unit is used for collecting task data of the occupancy detection module and the priority management module, and the evaluation unit evaluates a task thread of a current CPU module according to the execution state data and the task data so as to determine a scheduling strategy of the task thread;
the occupation detection module comprises a thread occupation detection unit and a data storage unit, the thread occupation detection unit is used for detecting the thread occupation of the CPU module, and the data storage unit is used for storing the data detected by the thread occupation detection unit;
the thread occupation detection unit comprises an executable program and a memory, the executable program is executed on the CPU module to obtain the occupation situation of the thread of each channel of the CPU module, and the memory is used for storing data corresponding to the occupation situation of the executable program.
Optionally, the priority management module includes a task detection unit and a priority management unit, the task detection unit is configured to detect a task processed by the CPU module to obtain a key work node of the task, and the priority management unit determines whether a priority corresponding to the task is balanced according to a resource occupancy rate of the key work node to perform analysis;
the task detection unit acquires a key working node used for executing a task to obtain the resource occupancy rate of the key working node;
and if the resource utilization rate of the operating key working node reaches the limit, the non-key working node is redistributed to other working nodes.
Optionally, the task management unit obtains the occupation condition of the thread occupation detection unit and the resource occupation rate of the key work node, transmits the acquired occupation condition of the thread occupation detection unit and the acquired resource occupation rate of the key work node to the evaluation unit, and triggers the scheduling of the evaluation unit on the task execution of the CPU module.
Optionally, the evaluation unit obtains the occupation condition of the thread occupation detection unit and the resource occupation rate of the key working node, and meets the following formula during scheduling:
in the formula, R ni_input Increased resource occupancy, O, for work nodes after task scheduling ni Is the resource occupancy rate, R, of the original working node ni The maximum limit value of the resource proportion occupied by the working node is set by the system;
and if the formula is not satisfied, the tasks are redistributed.
Optionally, when the evaluation unit reassigns the task, the following equation needs to be satisfied:
wherein IPOC is the number of re-allocated tasks, ILP j Load is set by the system for the average number of instructions per cycle that the jth thread executes over the total time j The actual execution time of the task thread when the jth thread completes in the total time accounts for the proportion of the total time; j is the current thread number and m is the total number of threads.
Optionally, the task scheduling coupling system further includes an interaction module, where the interaction module is configured to perform an interactive display on an operator to display a current task scheduling state to the operator;
the interaction module comprises a prompting unit and an early warning unit, the early warning unit triggers early warning according to an evaluation result of the evaluation unit, and the prompting unit prompts an early warning signal of the early warning unit to the operator.
The beneficial effects obtained by the invention are as follows:
1. through the mutual cooperation of the task management unit and the evaluation unit, the thread in the task execution process is evaluated, so that the high efficiency and the accuracy of the whole system for task scheduling are improved, and the whole system is ensured to automatically and dynamically schedule the task;
2. the thread occupation detection unit and the data storage unit are matched with each other, so that the occupation condition of the CPU module can be accurately detected, and the accuracy and the high efficiency of the whole system for task scheduling are improved;
3. the tasks are scheduled according to the evaluation result of the evaluation unit so as to improve the cooperativity of task scheduling and the high efficiency of task scheduling, so that the whole system has the advantages of high automation degree, high task scheduling interactivity and high scheduling efficiency;
4. through the cooperation of the prompt unit and the early warning unit, an operator can dynamically master the current early warning, and master the execution state of a task in real time, so that the interactive comfort of the whole system is improved.
Drawings
The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.
FIG. 1 is an overall block diagram of the present invention.
Fig. 2 is a schematic diagram illustrating a process of evaluating resource occupancy by the evaluation unit of the present invention.
FIG. 3 is a schematic diagram illustrating the evaluation flow of task scheduling reallocation by the evaluation unit according to the present invention.
Fig. 4 is a schematic diagram of an evaluation block of the evaluation unit, the early warning unit and the prompting unit of the present invention.
FIG. 5 is a block diagram of a portion of a CPU module according to the present invention.
Detailed Description
The following is a description of embodiments of the present invention with reference to specific embodiments, and those skilled in the art will understand the advantages and effects of the present invention from the disclosure of the present specification. The invention is capable of other and different embodiments and its several details are capable of modification in various other respects, all without departing from the spirit and scope of the present invention. The drawings of the present invention are for illustrative purposes only and are not intended to be drawn to scale. The following embodiments will further explain the related art of the present invention in detail, but the disclosure is not intended to limit the scope of the present invention.
The first embodiment is as follows:
according to fig. 1, 2, 3, 4, and 5, the present embodiment provides a task scheduling coupling system applied to a CPU, where the task scheduling coupling system includes a server, the task scheduling coupling system further includes an occupation detection module, a priority management module, and a response management module, the server is connected to the occupation detection module, the priority management module, and the response management module, respectively, the occupation detection module is configured to detect a thread of the CPU module to obtain an execution state of each thread of the CPU module, the priority management module is configured to detect each task processed by the CPU module to obtain a priority corresponding to each processed task, and the response management module is configured to collect execution state data of the occupation detection module and task data of the priority management module, and evaluate a task currently processed by the CPU module according to the collected state data and task data;
the CPU module is also in control connection with the server, the occupation detection module, the priority management module and the response management module, and performs centralized control on the occupation detection module, the priority management module and the response management module based on the CPU module so as to realize accurate scheduling of each task and improve the efficient execution of the CPU module;
in this embodiment, the occupancy detection module, the priority management module, and the response management module may be preset on the control bus of the CPU module, so as to implement task management or task allocation for each task executed by the CPU module;
optionally, the occupation detection module includes a thread occupation detection unit and a data storage unit, the thread occupation detection unit is configured to detect thread occupation of the CPU module, and the data storage unit is configured to store data detected by the thread occupation detection unit;
the thread occupation detection unit comprises an executable program and a memory, the executable program is executed on the CPU module to obtain the occupation condition of the thread of each channel of the CPU module, and the memory is used for storing data corresponding to the occupation condition of the executable program;
meanwhile, in the process of detecting the occupation of the threads of the CPU module, the threads of each channel of the CPU module need to be operated on the CPU module through the executable program or the executable tool so as to obtain the occupation condition of the threads of each channel of the CPU module, and thus data corresponding to the occupation condition of the CPU module is obtained;
the executable program or the executable tool is a technical means known to those skilled in the art, and those skilled in the art can query a related technical manual to know the technology, so that details are not repeated in this embodiment;
the data storage unit comprises at least one memory, and the memory is used for storing the data detected by the thread occupation detection unit, so that a group of detection data can be obtained by each detection and stored in the at least one memory, and the occupation data of each thread can be inquired, thereby improving the accuracy and the efficiency of the whole system in task scheduling;
in addition, the thread occupation detection unit and the data storage unit are matched with each other, so that the occupation condition of the CPU module can be accurately detected, and the accuracy and the high efficiency of the whole system for task scheduling are improved;
optionally, the priority management module includes a task detection unit and a priority management unit, the task detection unit is configured to detect a task processed by the CPU module to obtain a key work node of the task, and the priority management unit determines whether a priority corresponding to the task is balanced according to a resource occupancy rate of the key work node to perform analysis;
the task detection unit acquires a key working node used for executing a task to obtain the resource occupancy rate of the key working node;
if the resource utilization rate of the operating key working node reaches the limit, the non-key working node is redistributed to other working nodes;
the priority management unit evaluates the evaluation priority index level (t) of the current task according to the resource occupancy rate of the key working node:
where t is the execution time of the current task, n is the total number of threads currently executed in the CPU module, NS i And satisfying the normalized performance acceleration ratio of the currently executed thread i in the CPU module:
in the formula, p i Is the priority of the thread i, wherein the priority level of the thread task is between 1-10, and the larger the value is, the higher the priority is, i.e. the higher the execution is, in this embodiment, the default basic priority is 5, CYC is the number of sampled clock cycles, INST is the total number of instructions that a thread has submitted after CYC clock cycles, IPC i alone Setting theoretical performance of each thread during independent operation by a system, and presetting the theoretical performance in a database of a priority management unit;
if the evaluation priority index level (t) is lower than the set monitoring threshold group, the priority of the currently executed task is unbalanced, and the task is triggered to be redistributed;
meanwhile, the set monitoring threshold group is set by an operator or a system, different values are set in different application scenarios, and the set monitoring threshold group is compared with the evaluation priority index level (t), which is a technical means well known to those skilled in the art, and those skilled in the art can query a related technical manual to obtain the technology, so that details are not repeated in this embodiment;
the response management module comprises a task management unit and an evaluation unit, wherein the task management unit is used for collecting task data of the occupancy detection module and the priority management module, and the evaluation unit evaluates a task thread of a current CPU module according to execution state data and the task data so as to determine a scheduling strategy of the task;
optionally, the task management unit obtains the occupation condition of the thread occupation detection unit and the resource occupation rate of the key work node, transmits the acquired occupation condition of the thread occupation detection unit and the acquired resource occupation rate of the key work node to the evaluation unit, and triggers the scheduling of the evaluation unit on the task execution of the CPU module;
through the mutual cooperation of the task management unit and the evaluation unit, the thread in the task execution process is evaluated, so that the high efficiency and the accuracy of the whole system for task scheduling are improved, and the whole system is ensured to automatically and dynamically schedule the task;
optionally, the evaluation unit obtains the occupation condition of the thread occupation detection unit and the resource occupation rate of the key working node, and meets the following formula during scheduling:
in the formula, R ni_input Increased resource occupancy, O, for work nodes after task scheduling ni Is the resource occupancy rate, R, of the original working node ni The maximum limit value of the resource occupation ratio of the working nodes is set by the system;
if the formula is not satisfied, the tasks are redistributed;
optionally, when the evaluation unit redistributes the task, the following formula needs to be satisfied:
wherein IPOC is the number of re-allocated tasks, ILP j Load is set by the system for the average number of instructions per cycle that the jth thread executes over the total time j The actual execution time of the task thread when the jth thread completes in the total time accounts for the proportion of the total time; j is the current thread number, and m is the total number of threads;
the tasks are scheduled according to the evaluation results of the evaluation units so as to improve the cooperativity of task scheduling and the high efficiency of task scheduling, so that the whole system has the advantages of high automation degree, high task scheduling interactivity and high scheduling efficiency;
optionally, the task scheduling coupling system further includes an interaction module, where the interaction module is configured to perform an interaction display for an operator, so as to display a current task scheduling state for the operator;
the interaction module comprises a prompting unit and an early warning unit, the early warning unit triggers early warning according to an evaluation result of the evaluation unit, and the prompting unit prompts an early warning signal of the early warning unit to the operator;
the early warning unit compares an evaluation unit of the evaluation unit with a set early warning threshold, if the condition of triggering early warning is met, early warning is triggered, and the early warning is transmitted to the prompting unit so as to prompt or display an early warning signal to an operator by matching with the prompting unit;
the early warning unit compares the evaluation results of the evaluation unit and triggers early warning according to the evaluation results of the evaluation unit, which is a technical means known to those skilled in the art, and those skilled in the art can query a relevant technical manual to obtain the technology, so that details are not repeated in this embodiment;
the prompting unit comprises a prompting execution program and prompting information, the prompting execution program is executed on the CPU module, and the early warning information of the early warning unit is converted into the prompting information to be displayed for the operator;
after the prompt information is displayed to the operator, the operator can master task execution, an evaluation result of the evaluation unit and an early warning state of the early warning unit in real time;
through the cooperation of the prompt unit and the early warning unit, an operator can dynamically master the current early warning, and master the execution state of a task in real time, so that the interactive comfort of the whole system is improved.
Example two:
this embodiment should be understood to include at least all the features of any of the foregoing embodiments and further modified based on the embodiments shown in fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5, and further characterized in that the CPU module includes a Loongson processor, a Loongson bridge chip, a memory, a power interface card, a network interface card, a CFast interface card, a touch display panel, a debian10 system, and an openplc platform;
the Loongson processor, the Loongson bridge chip and the memory are arranged on the PCB bottom plate in a patch mode; the Loongson bridge chip and the PCB (printed Circuit Board) internal memory are connected with the Loongson processor through a circuit; the Loongson bridge chip forms 3 slots on the PCB bottom plate through a circuit; the power interface card is placed in a power slot of a PCB bottom plate and is connected with the Loongson bridge chip; the network port interface card is placed in a network slot of a PCB bottom plate and is connected with the Loongson bridge chip; the CFast interface card is placed in a CFast interface slot of a PCB bottom plate and is connected with the Loongson bridge chip; the touch display panel is connected with the CFast interface card through a flat cable;
wherein, godson treater: the CPU module is used for the functions of CPU operation and signal processing; b, longxin bridge pieces: the Loongson processor is connected with the Loongson processor and is used for signal processing bridging; memory: the device is connected with the Loongson processor and used for caching bottom layer data; a power interface card: the Loongson bridge chip is connected with the Loongson bridge chip and is used for external power supply connection of the CPU module; CFast interface card: the Loongson bridge chip is connected with the Loongson bridge chip and is used for operating system carriers and data storage; the network port interface card is connected with the Loongson bridge chip and is used for Ethernet data communication; a touch display panel: the CFast interface card is connected with a display video signal and user touch information;
the invention realizes the aim of 100 percent localization of core devices such as a CPU and the like through the domestic CPU module which is completely independently controllable, radically eliminates the hidden danger of information safety, and provides a basic hardware platform for various control systems with information safety requirements.
The disclosure is only a preferred embodiment of the invention, and is not intended to limit the scope of the invention, so that all equivalent technical changes made by using the contents of the specification and the drawings are included in the scope of the invention, and further, the elements thereof can be updated as the technology develops.
Claims (6)
1. A task scheduling coupling system applied to a CPU (Central processing Unit), which comprises a server and a CPU module, and is characterized by further comprising an occupation detection module, a priority management module and a response management module, wherein the server is respectively connected with the CPU module, the occupation detection module, the priority management module and the response management module, the occupation detection module is used for detecting threads of the CPU module to acquire the execution state of each thread of the CPU module, the priority management module is used for detecting each task processed by the CPU module to acquire the priority corresponding to each processed task, and the response management module is used for acquiring the execution state data of the occupation detection module and the task data of the priority management module and evaluating the task currently processed by the CPU module according to the acquired state data and task data;
the response management module comprises a task management unit and an evaluation unit, wherein the task management unit is used for collecting execution state data of the occupancy detection module and task data of the priority management module, and the evaluation unit evaluates a task thread of a current CPU module according to the execution state data and the task data so as to determine a scheduling strategy of the task thread;
the occupation detection module comprises a thread occupation detection unit and a data storage unit, the thread occupation detection unit is used for detecting the thread occupation of the CPU module, and the data storage unit is used for storing the data detected by the thread occupation detection unit;
the thread occupation detection unit comprises an executable program and a memory, the executable program is executed on the CPU module to obtain occupation conditions of threads of all channels of the CPU module, and the memory is used for storing data corresponding to the occupation conditions of the executable program.
2. The task scheduling coupling system applied to the CPU of claim 1, wherein the priority management module includes a task detection unit and a priority management unit, the task detection unit is configured to detect the task processed by the CPU module to obtain a key work node of the task processed by the CPU module, and the priority management unit determines whether the priorities corresponding to the tasks are balanced for analysis according to resource occupancy rates of the key work node;
the task detection unit acquires a key working node used for executing a task to obtain the resource occupancy rate of the key working node;
and if the resource utilization rate of the running key working node reaches the limit, the non-key working node is redistributed to other working nodes.
3. The task scheduling coupling system applied to the CPU according to claim 2, wherein the task management unit obtains an occupation status of the thread occupation detection unit and a resource occupation rate of the key working node, transmits the acquired occupation status of the thread occupation detection unit and the acquired resource occupation rate of the key working node to the evaluation unit, and triggers scheduling of the evaluation unit for task execution of the CPU module.
4. The task scheduling coupling system applied to the CPU as claimed in claim 3, wherein the evaluation unit obtains the occupation status of the thread occupation detection unit and the resource occupation status of the key work node, and satisfies the following equation during scheduling:
in the formula, R ni_input Increased resource occupancy, O, for work nodes after task scheduling ni Is the resource occupancy rate, R, of the original working node ni The maximum limit value of the resource ratio occupied by the working node is set by the system;
and if the formula is not satisfied, the tasks are redistributed.
5. The system according to claim 4, wherein the evaluation unit is required to satisfy the following equation when performing the task reallocation:
wherein IPOC is the number of re-allocated tasks, ILP j Load is set by the system for the average number of instructions per cycle that the jth thread executes over the total time j The actual execution time of the task thread during the execution of the jth thread completed in the total time accounts for the proportion of the total time; j is the current thread number and m is the total number of threads.
6. The system according to claim 5, further comprising an interactive module, configured to perform an interactive display to an operator, so as to display a current task scheduling status to the operator;
the interaction module comprises a prompting unit and an early warning unit, the early warning unit triggers early warning according to the evaluation result of the evaluation unit, and the prompting unit prompts the early warning signal of the early warning unit to the operator.
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