JP2012146088A - Communication control system, apparatus, method and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a communication control system in which required synchronism adjustment can be performed for each combination of devices.SOLUTION: In a communication control system which controls communication among devices distributively disposed on a network, a CPU-side bridge and an IO-side bridge are connected over the network. The CPU-side bridge includes CPU-side notification means 1 which notifies a group ID of a group to which the CPU-side bridge belongs and device information of a connected device. The IO-side bridge includes IO-side notification means 2 which notifies a group ID of a group to which the IO-side bridge belongs and device information of a connected device. The system further includes synchronism setting value calculation means 3 which collects the notified information, determines a combination of devices on the basis of the collected information and calculates a setting value for synchronism adjustment corresponding to the determined combination of devices, and synchronism adjustment means 4 which performs synchronism adjustment in the combination of devices on the basis of the calculated setting value.

Description

  The present invention relates to a communication control system, a communication control apparatus, a communication control method, and a communication control program for controlling communication between a plurality of devices distributed on a network.

  As shown in Non-Patent Document 1 and Non-Patent Document 2, there is a method of constructing a distributed system by distributing and arranging CPU device groups and IO devices of CPUs, memory chipsets on a network. By distributing and arranging devices on a network, devices can be freely connected, and scalability can be improved by releasing distance restrictions and enclosure restrictions.

  Further, as shown in FIG. 17, by making the group ID of the IO device the same as the group ID of the CPU device group to which the IO device is desired to belong, it can belong to the system realized by the CPU device group. In this way, the degree of freedom in system construction can be improved.

  As a related technique, for example, Patent Document 1 describes a sharing system for I / O devices.

JP 2008-078887 A

2006 IEICE Communication Society Conference B-6-57 System Virtualization Technology ExpressEther Using Ethernet (1) System Overview and Architecture 2006 IEICE Communications Society Conference B-6-58 System Virtualization Technology ExpressEther Using Ethernet (2) IO Virtualization Technology

  However, adverse effects due to the distributed arrangement of devices occur. First, synchronization between devices is not achieved, resulting in a shift in operation. For example, if the display device and the audio device are not synchronized, a sound shift will occur. Alternatively, when one screen is displayed using a plurality of display devices, a display shift occurs.

  Secondly, resources (CPU, memory, hard disk, etc. necessary for operating software and hardware) are wasted by performing the most accurate synchronization adjustment. When various device combinations are possible, combinations that do not require synchronization or combinations with different synchronization accuracy occur depending on the combination of devices, and when the highest synchronization accuracy is given to all, resources are wasted.

  In particular, in a system using the PCI Express bus and Ethernet (registered trademark) described in Non-Patent Document 1 and Non-Patent Document 2, first, the PCI Express bus and Ethernet itself are standardized with specifications that do not consider synchronization. It is difficult to synchronize as a standard.

  Thus, even if the techniques described in Non-Patent Document 1 and Non-Patent Document 2 are used, appropriate synchronization control is not always performed according to the combination of devices.

  In addition, the system described in Patent Document 1 is intended to perform I / O device sharing settings in consideration of fault tolerance, and is applied to the purpose of performing optimal synchronization adjustment for each device combination. I can't.

  SUMMARY An advantage of some aspects of the invention is that it provides a communication control system, a communication control apparatus, a communication control method, and a communication control program that can perform necessary synchronization adjustment for each combination of devices.

  A communication control system according to the present invention is a communication control system that controls communication between devices distributed on a network, and includes a CPU side bridge to which a CPU and a CPU peripheral device are connected, and an IO to which an IO device is connected. The CPU side bridge includes a CPU side notifying unit for notifying the group ID of the group to which the CPU side bridge belongs and the device information of the device connected to the CPU side bridge. The side bridge includes IO side notification means for notifying the group ID of the group to which the IO side bridge belongs and the device information of the device connected to the IO side bridge, and the information notified by the CPU side notification means and the IO side notification means Collect and determine device combinations based on the collected information Synchronization setting value calculating means for calculating a setting value for synchronization adjustment corresponding to the combination of devices, and synchronization adjusting means for performing synchronization adjustment in the combination of devices based on the setting value calculated by the synchronization setting value calculating means It is characterized by that.

  A communication control apparatus according to the present invention is a communication control apparatus that controls communication between devices distributed on a network, and includes a group ID of a group to which a CPU side bridge belongs and a device device connected to the CPU side bridge Information, the group ID of the group to which the IO-side bridge belongs and the device information of the device connected to the IO-side bridge, determine the device combination based on the collected information, and according to the determined device combination Synchronization setting value calculation means for calculating the set value for synchronization adjustment, and synchronization adjustment means for controlling to perform synchronization adjustment in the combination of devices based on the setting value calculated by the synchronization setting value calculation means. It is characterized by that.

  A communication control method according to the present invention is a communication control method for controlling communication between devices distributed on a network, the group ID of the group to which the CPU side bridge belongs and the device of the device connected to the CPU side bridge Information, the group ID of the group to which the IO-side bridge belongs and the device information of the device connected to the IO-side bridge, determine the device combination based on the collected information, and according to the determined device combination The synchronization adjustment setting value is calculated, and the synchronization adjustment in the combination of devices is performed based on the calculated setting value.

  A communication control program according to the present invention is a communication control program for controlling communication between devices distributed on a network, and is connected to a group ID of a group to which a CPU bridge belongs and a CPU bridge. The device information of the device that has been registered, the group ID of the group to which the IO-side bridge belongs, and the device information of the device connected to the IO-side bridge are collected, and the combination of the devices is determined based on the collected information. A synchronization setting value calculation process for calculating a setting value for synchronization adjustment according to a combination of devices and a synchronization adjustment process for performing synchronization adjustment for a combination of devices based on the calculated setting value are executed. .

  According to the present invention, necessary synchronization adjustment can be performed for each combination of devices.

It is a block diagram which shows the example of whole structure of 1st Embodiment of the communication control system by this invention. It is a block diagram which shows the structural example of the CPU device group of 1st Embodiment. It is a block diagram which shows the structural example of the CPU side bridge | bridging of 1st Embodiment. It is a block diagram showing an example of composition of an IO side bridge of a 1st embodiment. It is a block diagram which shows the structural example of the network which can be synchronously adjusted of 1st Embodiment. It is a block diagram which shows the structural example of the system manager of 1st Embodiment. It is explanatory drawing which shows an example of the device information table of 1st Embodiment. It is explanatory drawing which shows an example of the synchronous adjustment setting table of 1st Embodiment. It is a flowchart showing the operation example of 1st Embodiment. It is a block diagram which shows the example of whole structure of 2nd Embodiment of a communication control system. It is a block diagram which shows the structural example of the CPU side bridge | bridging of 2nd Embodiment. It is a block diagram which shows the structural example of IO side bridge | bridging of 2nd Embodiment. It is a block diagram which shows the structural example of the network which can be synchronously adjusted of 2nd Embodiment. It is a block diagram which shows the structural example of the group setting manager of 2nd Embodiment. It is explanatory drawing which shows an example of the group setting table of 2nd Embodiment. It is a flowchart showing the operation example of 2nd Embodiment. 1 is a block diagram showing a general inter-device communication system. It is a block diagram which shows the minimum structural example of a communication control system.

Embodiment 1. FIG.
Next, a first embodiment of a communication control system according to the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing an example of the overall configuration of a first embodiment of a communication control system according to the present invention. The communication control system according to the present embodiment includes one or more CPU device groups 101 including a CPU, a memory, and a chip set, one or more CPU side bridges 102, one or more IO side bridges 103, One or a plurality of IO device groups 104, a network 105 capable of synchronous adjustment, and a system manager 106 are provided.

  Note that the synchronization adjustment between devices means, for example, a process for adjusting the delay of the video signal output when there are multiple graphics cards, and a shift between video and sound occurs during playback between the graphics card and the sound card. It is a process to adjust so that there is no.

  The CPU device group 101 and the CPU side bridge 102 are connected on a one-to-one basis, and are connected by a computer internal bus such as a PCI bus or a PCI Express bus. Similarly, the IO-side bridge 103 and the IO device 104 are connected one-to-one, and are connected via a computer internal bus such as a PCI bus or a PCI Express bus. The CPU side bridge 102, the IO side bridge 103, and the system manager 106 are connected to a network 105 that can be adjusted synchronously.

  FIG. 2 is a block diagram illustrating a configuration example of the CPU device group 101. The CPU device group 101 includes one or more CPU / memory 101-1 and one or more chip sets 101-2. The CPU / memory 101-1 and the chip set 101-2 are devices for installing and processing software on a general-purpose computer, an embedded dedicated computer, a high performance computer, a supercomputer, or the like.

  FIG. 3 is a block diagram illustrating a configuration example of the CPU side bridge 102. The CPU side bridge 102 includes a CPU side packet transfer processing unit 102-1 and a device information processing unit 102-2.

  The CPU side packet transfer processing unit 102-1 performs processing of the connection relation between the CPU device group 101 and the IO device 104, and receives packets received from the CPU device group 101 and packets received via the network 105 capable of synchronous adjustment. It has a function of converting and transferring so as to be transferred to a desired transfer destination. The CPU-side packet transfer processing unit 102-1 has a function of generating a control packet as necessary and transmitting the generated control packet to the CPU device group 101 and the IO device 104.

  The device information processing unit 102-2 acquires device information (details will be described later) of the connected CPU device group 101, and identifies its own group ID (here, a set of connected CPU device groups 101). And a function of generating a control packet and transmitting it to the system manager 106.

  FIG. 4 is a block diagram illustrating a configuration example of the IO side bridge 103. The IO side bridge 103 includes an IO side packet transfer processing unit 103-1 and a device information processing unit 103-2.

  The IO-side packet transfer processing unit 103-1 performs processing of the connection relationship between the IO device 104 and the CPU device group 101, and requests a packet received from the IO device 104 or a packet received via the network 105 that can be synchronously adjusted. It has a function of converting and transferring to transfer destination. The IO-side packet transfer processing unit 103-1 has a function of generating a control packet as necessary and transmitting the generated control packet to the IO device 104 or the CPU device group 101.

  The device information processing unit 103-2 acquires device information of the connected IO device 104, and uses it as a control packet together with its own group ID (here, an ID for specifying a set of connected IO devices 104). A function of generating and transmitting to the system manager 106 is provided.

  The IO device 104 has a function of performing IO processing such as a graphic card, a sound card, and an interface card.

  FIG. 5 is a block diagram illustrating a configuration example of the network 105 capable of synchronous adjustment. The synchronization-adjustable network 105 includes one or a plurality of network switches 105-1 and a plurality of synchronization adjustment devices 105-2.

  The network switch 105-1 has a function of transferring data in accordance with a communication protocol between the CPU side bridge 102 and the IO side bridge 103. For example, the network switch 105-1 is realized by an Ethernet switch if the communication protocol is Ethernet, and is realized by an L3 switch / router if the communication protocol is IP.

  The synchronization adjustment apparatus 105-2 has a function of adjusting synchronization between devices in accordance with instructions received from the system manager 106. The synchronization adjusting device 105-2 is connected to all switch ports of the network switch 105-1. Note that the synchronization adjustment apparatus 105-2 may be included in the network switch 105-1.

  FIG. 6 is a block diagram illustrating a configuration example of the system manager 106. The system manager 106 includes a synchronization adjustment setting unit 106-1, a device information table 106-2, and a synchronization adjustment setting table 106-3.

  The synchronization adjustment setting unit 106-1 collects device information and group ID information of the CPU device group 101 transmitted by the CPU side bridge 102 and device information and group ID information of the IO device 104 transmitted by the IO side bridge 103. It has a function. Further, the synchronization adjustment setting unit 106-1 records the collected information in the device information table 106-2, and grasps device combination information of each group (specifically, manages device combination information) It has.

  In the synchronization adjustment setting table 106-3, a setting value for synchronization adjustment for each combination of devices (hereinafter, this setting value is also referred to as a basic value for synchronization adjustment) is recorded. The synchronization adjustment setting unit 106-1 refers to the synchronization adjustment setting table 106-3, acquires the basic value of the synchronous adjustment for each group, and uses the acquired basic value of the synchronous adjustment and the correction value / characteristic information for each device. A function of calculating an actual set value based on the above is provided. Further, the synchronization adjustment setting unit 106-1 has a function of causing each synchronization adjustment apparatus 105-2 to set the calculated setting value.

  FIG. 7 is an explanatory diagram of an example of the device information table 106-2. Information collected from each device is recorded in the device information table 106-2. The packet for notifying device information includes, for example, a network address, a group ID, and device information (vendor ID, bus ID, device ID, function ID, characteristic information, correction value, etc.). The synchronization adjustment setting unit 106-1 determines a combination pattern based on the information, and records the determined combination pattern in the device information table 106-2 in association with the information.

  FIG. 8 is an explanatory diagram showing an example of the synchronization adjustment setting table 106-3. In the synchronization adjustment setting table 106-3, setting values (basic values for synchronization adjustment) of the synchronization adjustment device 105-2 for each combination pattern are recorded. The synchronization adjustment setting table 106-3 is manually set by a system administrator in advance, for example. The synchronization adjustment setting unit 106-1 refers to the synchronization adjustment setting table 106-3, acquires the stored setting value as the basic value of the synchronous adjustment of each group, and acquires the acquired basic value of the synchronous adjustment and each device Based on the characteristic information / correction value, an actual set value is calculated.

  For example, in the present embodiment, a plurality of groups are divided in advance according to the number and type of devices in the group, and an optimal synchronization setting value is obtained for each group by a statistical value or the like, and set in the synchronization adjustment setting table Keep it. Based on the information received from each bridge, the synchronization adjustment setting unit 106-1 identifies the number and type of devices in the group by counting devices with the same group ID, and determines the combination pattern of the groups. Then, the synchronization adjustment setting unit 106-1 can obtain an optimum setting by extracting the setting value corresponding to the determined pattern from the synchronization adjustment setting table.

  Next, the operation of the communication control system will be described. FIG. 9 is a flowchart showing an operation example of the present embodiment. In the present embodiment, it is assumed that group settings have been made in advance and a group ID has been assigned to each device.

  When the system is activated, the CPU bridge 102 and the IO-side bridge 103 mutually authenticate each other having the same group ID via the network 205 that can be synchronously adjusted (step S901).

  When the authentication process is completed, the CPU device group 101 starts a device setting process for the IO device 104 (step S902).

  Here, based on the information transmitted and received during the device setting process, the CPU bridge 102 and the IO side bridge 103 generate control packets including the device information and the group ID, and transmit them to the system manager 106 (step S903).

  Next, the system manager 106 that has received the control packet records the network address, device information, and group ID in the device information table 106-2 (step S904).

  Next, the synchronization adjustment setting unit 106-1 determines the device combination of each group based on the information recorded in the device information table 106-2 (step S905).

  Next, the synchronization adjustment setting unit 106-1 acquires the basic value of the synchronization adjustment for the determined combination of devices with reference to the synchronization adjustment setting table 106-3, and the acquired basic value and the characteristic information of each device, Based on the correction value, the final setting value of the synchronization adjusting device 105-2 is determined (step S906).

  Then, the synchronization adjustment setting unit 106-1 causes the synchronization adjustment apparatus 105-2 to set the determined setting value (step S907). Specifically, when the setting value determined by the synchronization adjustment setting unit 106-1 is transmitted to the synchronization adjustment apparatus 105-2, the synchronization adjustment apparatus 105-2 sets the synchronization adjustment based on the received setting value. Thereafter, the synchronization adjustment apparatus 105-2 performs synchronization processing between devices based on the setting.

  As described above, in the present embodiment, the CPU device group and the IO device are connected by the network including the synchronization adjustment device. Then, the own device information / group ID information transmitted by the CPU device group and the IO device is collected, the combination of the devices is determined based on the device information and the group ID information, and synchronization is performed so that the synchronization adjustment necessary for the combination is performed. Set the adjustment device.

  Next, the effect of this embodiment will be described. In this embodiment, each device notifies at least information including device information and group ID, grasps a combination of devices based on the information, and performs synchronization adjustment according to the combination. Therefore, in the present embodiment, necessary synchronization adjustment can be performed for each combination of devices.

Embodiment 2. FIG.
Next, a second embodiment of the communication control system according to the present invention will be described with reference to the drawings. FIG. 10 is a block diagram showing an example of the overall configuration of the second embodiment of the communication control system according to the present invention. The communication control system of the present embodiment includes one or more CPU device groups 101 including a CPU, a memory, and a chip set, one or more CPU side bridges 202, one or more IO side bridges 203, One or a plurality of IO device groups 104, a network 205 capable of synchronous adjustment, a system control device 106, and a group setting manager 207 are provided.

  The CPU device group 101 and the CPU side bridge 202 are connected one-to-one by a computer internal bus such as a PCI bus or a PCI Express bus. Similarly, the IO-side bridge 203 and the IO device 104 are connected one-to-one with a computer internal bus such as a PCI bus or a PCI Express bus. The CPU side bridge 202, the IO side bridge 203, the system manager 106, and the group setting manager 207 are connected to a network 205 that can be adjusted synchronously.

  FIG. 11 is a block diagram illustrating a configuration example of the CPU side bridge 202. The CPU side bridge 202 includes a CPU side packet transfer processing unit 202-1, a device information processing unit 202-2, and a group setting unit 202-3.

  The CPU-side packet transfer processing unit 202-1 performs processing of the connection relation between the CPU device group 101 and the IO device 104, and receives packets received from the CPU device group 101 and packets received via the network 205 that can be synchronously adjusted. It has a function of converting and transferring so as to be transferred to a desired transfer destination. The CPU-side packet transfer processing unit 202-1 has a function of generating a control packet as necessary and transmitting the generated control packet to the CPU device group 101 and the IO device 104.

  The device information processing unit 202-2 has a function of acquiring device information of the connected CPU device group 101, generating it as a control packet together with its own group ID, and transmitting it to the system manager 106.

  The group setting unit 202-3 has a function of setting a group ID based on an instruction received from the group setting manager 207.

  FIG. 12 shows the IO side bridge 203. The IO-side bridge 203 includes an IO-side packet transfer processing unit 203-1, a device information processing unit 203-2, and a group setting unit 203-3.

  The IO-side packet transfer processing unit 203-1 performs processing of the connection relationship between the IO device 104 and the CPU device group 101, and requests a packet received from the IO device 104 or a packet received via the network 105 that can be synchronized. It has a function of converting and transferring to transfer destination. The IO-side packet transfer processing unit 203-1 has a function of generating a control packet as necessary and transmitting the generated control packet to the IO device 104 or the CPU device group 101.

  The device information processing unit 203-2 has a function of acquiring device information of the connected IO device 104, generating it as a control packet together with its own group ID, and transmitting it to the system manager 106.

  The group setting unit 203-3 has a function of setting a group ID in accordance with an instruction received from the group setting manager 207.

  The IO device 104 has a function of performing IO processing such as a graphic card, a sound card, and an interface card.

  FIG. 13 is a block diagram illustrating a configuration example of the network 205 capable of synchronous adjustment. The synchronization-adjustable network 205 includes one or more network switches 205-1 and a plurality of synchronization adjusters 205-2.

  The network switch 205-1 has a function of transferring according to a communication protocol between the CPU side bridge 202 and the IO side bridge 203. For example, if the communication protocol is Ethernet, the network switch 205-1 is realized by an Ethernet switch, and if the communication protocol is IP, the network switch 205-1 is realized by an L3 switch / router.

  The synchronization adjustment device 205-2 has a function of adjusting synchronization between devices in accordance with instructions received from the system manager 106. As shown in FIG. 13, in this embodiment, unlike the first embodiment, the synchronization adjustment device 205-2 is not connected to the ports of all the network switches 205-1. In the present embodiment, which CPU device group 101 and IO device 104 are connected to the synchronization adjustment apparatus 205-2 is recorded and managed in a group setting table 207-3 of the group setting manager 207 described later.

  FIG. 14 is a block diagram illustrating a configuration example of the group setting manager 207. The group setting manager 207 includes a group setting unit 207-1, a group setting policy setting unit 207-2, and a group setting table 207-3.

  The group setting unit 207-1 searches for and specifies a user desired device from the group setting table 207-3 according to the policy set by the group setting policy setting unit 207-2, and specifies the specified CPU side bridge 202 and the IO side. A function of transmitting a group ID setting instruction to the bridge 203 is provided.

  The group setting policy setting unit 207-1 has a function of receiving and interpreting a group setting instruction designated by the user. Specifically, group setting policy setting unit 207-1 sets a group setting policy indicating a policy at the time of group setting based on instruction information input in accordance with a user input operation. The group setting policy setting unit 207-1 can specify, for example, the type of device to be used and the synchronization accuracy as the group setting policy. In this manner, the user can construct a system by designating a desired device and synchronization accuracy by inputting instruction information for designating a policy by an input operation.

  In the group setting table 207-3, the device type, the connection status of the synchronization adjustment apparatus 205-2, and the synchronization accuracy when connected, are recorded. The group setting table 207-3 is referred to by the group setting unit 207-1 when realizing the policy specified by the user. This group setting table 207-3 is manually set by a system administrator, for example. Further, for example, the group setting table 207-3 is set by the group setting manager 207 based on information transmitted from the CPU side bridge 202, the IO side bridge 203, and the synchronization adjustment apparatus 205-2.

  FIG. 15 is an explanatory diagram of an example of the group setting table 207-3. In the group setting table 207-3, information on each device, the presence / absence of the synchronization adjustment device, the accuracy of the synchronization adjustment device, and the status of belonging to the group are recorded.

  The group setting unit 207-1 sets a group by referring to the group setting table 207-3 according to the policy interpretation of the group setting policy setting unit 207-2 (that is, the group setting policy set by analyzing the instruction information). .

  Next, the operation when the system is operating in the present embodiment will be described. FIG. 16 is a flowchart showing an operation example of this embodiment.

  When the system is activated, the user performs an input operation of a group setting policy for designating a desired device and synchronization accuracy using the input device. Then, the input device inputs instruction information for designating a policy to the group setting manager 207 in accordance with a user operation (step S1601).

  The group setting manager 207 analyzes the input instruction information and determines whether setting according to the policy indicated by the analysis result is possible with reference to the group setting table 207-3 (step S1602).

  When determining that the setting satisfying the policy is possible, the group setting manager 207 determines the group ID, and requests a group setting instruction including the determined group ID (specifically, a user-desired device belongs). To the CPU side bridge 202 and the IO side bridge 203 (step S1603). Thereafter, the CPU side bridge 202 and the IO side bridge 203 set the group ID based on the received instruction.

  In addition, when it is determined that the setting satisfying the policy is impossible, and when it is determined that the setting satisfying the policy higher or lower than the policy desired by the user is possible, the group setting manager 207 determines the policy. It is presented to the user (step S1604). Specifically, the group setting manager 207 controls to display a settable policy on a display device such as a display device. When the user accepts the policy (that is, when the user performs an input operation permitting the setting with the displayed policy), the group setting manager 207 performs the group setting with the policy. That is, the group setting unit 207-1 determines grouping and determines a group ID based on the determined grouping.

  When the policy cannot be satisfied at all or when the user rejects the presented policy, the group setting manager 207 ends the process.

  Next, the CPU bridge 202 and the IO-side bridge 203 perform authentication processing with each other having the same group ID via the network 205 that can be synchronously adjusted (step S1605).

  When the authentication process is completed, device setting for the IO device 104 starts from the CPU device group 101 (step S1606).

  Based on the information, the CPU bridge 202 and the IO side bridge 203 generate a control packet including the device information and the group ID, and transmit the control packet to the system manager 106 (step S1607).

  The system manager 106 that has received the control packet records the network address, device information, and group ID in the device information table 106-2 (step S1608).

  Next, the synchronization adjustment setting unit 106-1 determines the device combination of each group based on the information recorded in the device information table 106-2 (step S1609). For example, the synchronization adjustment setting unit 106-1 determines a device combination based on the above.

  Next, the synchronization adjustment setting unit 106-1 acquires the basic value of the synchronization adjustment for the determined combination of devices with reference to the synchronization adjustment setting table 106-3, and the acquired basic value and the characteristic information of each device, Based on the correction value, the final setting value of the synchronization adjusting device 205-2 is determined (step S1610). For example, the synchronization adjustment setting unit 106-1 determines a setting value based on

  Then, the synchronization adjustment setting unit 106-1 causes the synchronization adjustment apparatus 205-2 to set the determined setting value (step S1611). Specifically, when the setting value determined by the synchronization adjustment setting unit 106-1 is transmitted to the synchronization adjustment apparatus 205-2, the synchronization adjustment apparatus 205-2 sets the synchronization adjustment based on the received setting value. Thereafter, the synchronization adjustment apparatus 205-2 performs a synchronization process between devices based on the setting.

  Next, the effect of this embodiment will be described. In the present embodiment, the synchronization accuracy desired by the user is designated. For this reason, in addition to the effects of the first embodiment, it is possible to control not to use the resources of the synchronization adjusting apparatus at the time of the combination that does not require synchronization, and the resources can be effectively utilized.

  As described above, the present invention relates to a communication control system between a plurality of devices distributed on a network, and more particularly to a technique for performing synchronization / delay adjustment between devices by a combination of devices.

  Next, the minimum configuration of the communication control system according to the present invention will be described. FIG. 18 is a block diagram illustrating a minimum configuration example of the communication control system. As shown in FIG. 18, the communication control system includes a CPU side bridge 102, an IO side bridge 103, a synchronization setting value calculation unit 3, and a synchronization adjustment unit 4 as minimum components. The CPU side bridge 102 includes the CPU side notification unit 1, and the IO side bridge 103 includes the CPU side notification unit 2.

  In the communication control system with the minimum configuration shown in FIG. 18, the CPU side notification means 1 notifies the group ID of the group to which the CPU side bridge 102 belongs and the device information of the device connected to the CPU side bridge 102. Further, the IO side notification unit 2 notifies the group ID of the group to which the IO side bridge 103 belongs and the device information of the device connected to the IO side bridge 103. Then, the synchronization setting value calculation unit 3 collects information notified by the CPU side notification unit 1 and the IO side notification unit 2, determines a device combination based on the collected information, and according to the determined device combination A setting value for synchronization adjustment is calculated. Thereafter, the synchronization adjustment unit 4 performs synchronization adjustment in the combination of devices based on the setting value calculated by the synchronization setting value calculation unit 3.

  Therefore, according to the communication control system having the minimum configuration, the necessary synchronization adjustment can be performed for each combination of devices.

  In this embodiment, the characteristic configuration of the communication control system as shown in the following (1) to (5) is shown.

  (1) A communication control system is a communication control system that controls communication between devices distributed on a network, and is a CPU-side bridge (to which a CPU and a CPU peripheral device (for example, a CPU device group 101) are connected). The network (for example, the network 105 that can be synchronously adjusted) is connected to the IO side bridge (for example, the IO side bridge 103) to which the IO device (for example, the IO device group 104) is connected. The CPU side bridge is connected to the CPU side bridge, and the CPU side notification means (for example, the device information processing unit 102-2) notifies the group ID of the group to which the CPU side bridge belongs and the device information of the device connected to the CPU side bridge. And the IO side bridge includes the IO side CPU-side notification means including IO-side notification means (for example, realized by the device information processing unit 202-2) for notifying the group ID of the group to which the ridge belongs and the device information of the device connected to the IO-side bridge And the information notified by the IO-side notification means, determine a combination of devices based on the collected information, and a synchronization setting value calculation means (for example, calculate a setting value for synchronization adjustment according to the determined combination of devices) Synchronization adjustment setting unit 106-1) and a synchronization adjustment unit (for example, synchronization adjustment unit 105-2) that performs synchronization adjustment in the combination of the devices based on the setting value calculated by the synchronization setting value calculation unit. Is realized).

  (2) In a communication control system, a group setting policy setting unit (for example, realized by the group setting policy setting unit 207-2) that analyzes input information input according to a user operation and sets a group setting policy , A group for determining a group setting to be an optimum combination based on device information and information indicating a connection status of a synchronization adjusting apparatus that performs synchronization adjustment between devices in accordance with a group setting policy set by a group setting policy setting unit It may be configured to include setting means (for example, realized by the group setting unit 207-1).

  (3) In the communication control system, the group setting policy setting means may be configured to set a group setting policy that specifies a device type and synchronization accuracy.

  (4) In the communication control system, the synchronization set value calculation means stores a predetermined basic value for synchronization adjustment (shown in FIG. 8), a correction value for each device, and characteristic information (device information table 106-2). The synchronization setting value may be calculated based on the above.

  (5) In the communication control system, the CPU-side notification unit may be configured to notify PCI device information, and the IO-side notification unit may be configured to notify PCI device information.

  The present invention can be applied to an application in which devices are distributed and arranged on a network.

DESCRIPTION OF SYMBOLS 1 CPU side notification means 2 IO side notification means 3 Synchronization set value calculation means 4 Synchronization adjustment means 101 CPU device group 101-1 CPU and memory 101-2 Chipset 102 CPU side bridge 102-1 CPU side packet transfer processing part 102-2 Device information processing unit 103 IO side bridge 103-1 IO side packet transfer processing unit 103-2 Device information processing unit 104 IO device group 105 Network capable of synchronization adjustment 105-1 Network switch 105-2 Synchronization adjustment unit 106 System manager 106- 1 synchronization adjustment setting section 106-2 device information table 106-3 synchronization adjustment setting table

Claims (8)

A communication control system for controlling communication between devices distributed on a network,
The CPU side bridge to which the CPU and the CPU peripheral device are connected and the IO side bridge to which the IO device is connected are connected via the network,
The CPU side bridge includes a CPU side notification means for notifying a group ID of a group to which the CPU side bridge belongs and device information of a device connected to the CPU side bridge,
The IO-side bridge includes an IO-side notification means for notifying a group ID of a group to which the IO-side bridge belongs and device information of a device connected to the IO-side bridge,
Synchronization that collects information notified by the CPU-side notification means and the IO-side notification means, determines a combination of devices based on the collected information, and calculates a setting value for synchronization adjustment according to the determined combination of devices A set value calculation means;
A communication control system comprising: synchronization adjustment means for performing synchronization adjustment in the combination of devices based on the setting value calculated by the synchronization setting value calculation means. A group setting policy setting means for analyzing input information input in accordance with a user operation and setting a group setting policy;
In accordance with the group setting policy set by the group setting policy setting means, a group setting that is an optimal combination is determined based on device information and information indicating a connection status of a synchronization adjusting device that performs synchronization adjustment between devices. The communication control system according to claim 1, further comprising group setting means. The communication control system according to claim 2, wherein the group setting policy setting means sets a group setting policy that specifies a device type and synchronization accuracy. The synchronization setting value calculation means calculates the synchronization setting value based on a predetermined basic value of synchronization adjustment, a correction value for each device, and characteristic information. The communication control system described in 1. CPU side notification means notifies PCI device information,
The communication control system according to any one of claims 1 to 4, wherein the IO-side notification unit notifies PCI device information. A communication control apparatus for controlling communication between devices distributed on a network,
The group ID of the group to which the CPU side bridge belongs and the device information of the device connected to the CPU side bridge, the group ID of the group to which the IO side bridge belongs and the device information of the device connected to the IO side bridge. Collecting, determining a combination of devices based on the collected information, and a synchronization setting value calculating means for calculating a setting value for synchronization adjustment according to the determined combination of devices;
A communication control apparatus comprising: synchronization adjustment means for controlling to perform synchronization adjustment in the combination of devices based on the setting value calculated by the synchronization setting value calculation means. A communication control method for controlling communication between devices distributed on a network,
The group ID of the group to which the CPU side bridge belongs and the device information of the device connected to the CPU side bridge, the group ID of the group to which the IO side bridge belongs and the device information of the device connected to the IO side bridge. Collect and determine the device combination based on the collected information, calculate the setting value for synchronization adjustment according to the determined device combination,
A communication control method, comprising: performing synchronization adjustment in the combination of the devices based on the calculated setting value. A communication control program for controlling communication between devices distributed on a network,
On the computer,
The group ID of the group to which the CPU side bridge belongs and the device information of the device connected to the CPU side bridge, the group ID of the group to which the IO side bridge belongs and the device information of the device connected to the IO side bridge. Collecting, determining a combination of devices based on the collected information, a synchronization setting value calculation process for calculating a setting value for synchronization adjustment according to the determined device combination;
A communication control program for executing synchronization adjustment processing for performing synchronization adjustment in a combination of the devices based on a calculated set value.

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