JP3348682B2 - Restart control device and restart control method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multiprocessor system with distributed functions, and more particularly, to a restart control device and a restart control method for controlling restart of a multiprocessor system with distributed functions.

[0002]

2. Description of the Related Art In a multiprocessor system in which functions are distributed, there are a system and a software resource that can be managed by only a single processor and a system that can be managed by dividing into a plurality of processors. Depending on the scale, the functions to be deployed in each processor also vary. In this situation, when a restart occurs in a certain processor, there is a case where only the restart of that processor is sufficient and a case where it is necessary to restart the related processor in order to match information with other processors. Has caused the restart of all processors to be started uniformly, or the restarted processor has instructed the restart of other related processors.

[0003]

However, the prior art has a problem that, when the restart of all processors is uniformly started, more processors than necessary are restarted. In the case of restarting, the information of the associated processor must be held for each processor, and there is a problem that the management of the system becomes complicated.

The present invention has been made in view of such a problem, and an object of the present invention is to provide a multiprocessor system in which functions are distributed, in which a restart occurs in any processor in parallel. An object of the present invention is to provide a restart control device and a restart control method that can restart only a processor that is required and can easily perform system management.

[0005]

Means for Solving the Problems In order to solve the above problems, the present invention has the following constitution. The gist of the invention according to claim 1 is a restart control device that controls restart of the processors in a multiprocessor system in which a plurality of logical processor types are distributed and assigned to a plurality of processors, wherein the restart is performed in parallel. A restart processor definition table in which a logical processor type is defined; a logical processor type search table for searching the logical processor type allocated from the processor to the processor; and a logical processor type allocated from the logical processor type. A table search means for storing the processor search table for searching for the present processor, the restart processor definition table, the logical processor type search table, and the processor search table; a restart processor definition table and the logical processor type search; A restart processor specifying means for specifying the processor to be restarted in parallel with the processor restarted using the table and the processor search table; and a processor for specifying a restart instruction signal for instructing autonomous restart by the restart processor specifying means. And a restart instruction signal output means for outputting the restart instruction signal to the restart control device. The gist of the invention according to claim 2 is that the restart processor specifying means specifies the logical processor type allocated to the restarted processor from the restarted processor using the logical processor type search table, The specified logical processor type to be restarted in parallel with the specified logical processor type using the restarted processor definition table from the specified logical processor type, and the specified logical processor to be restarted in parallel with the specified logical processor type 2. The restart control device according to claim 1, wherein the processor to which the specified logical processor type to be restarted in parallel is assigned is specified from the type by using the processor search table. The gist of the invention according to claim 3 is a restart control method in a multiprocessor system in which a plurality of logical processor types are distributed and assigned to a plurality of processors, wherein the logical processor types to be restarted in parallel are defined. A resumed processor definition table,
Resume using a logical processor type search table for searching the logical processor type allocated to the processor from the processor, and a processor search table for searching the processor to which the logical processor type is allocated from the logical processor type. A restart control signal that specifies the processor to be restarted in parallel with the specified processor and outputs a restart instruction signal for instructing autonomous restart to the specified processor. The gist of the invention according to claim 4 is that the logical processor type allocated to the restarted processor is specified from the restarted processor using the logical processor type search table, and the specified logical processor type is specified. From the restart processor definition table, the logical processor type to be restarted in parallel with the specified logical processor type is specified, and the processor search table is determined from the specified logical processor type to be restarted in parallel with the specified logical processor type. 4. The processor to which the specified logical processor type to be restarted in parallel using the specified logical processor type is specified.
The present invention resides in the described restart control method.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a block diagram showing a configuration of an embodiment of a restart control device according to the present invention.

An embodiment of the present invention is described in, for example, US TIA
That applies the communication standard IS-95 recommended by
The present invention is applied to a DMA system or the like, and a multiprocessor system is configured by a plurality of processors 1, 2, and 3, and one of the processors 1, 2, and 3 restarts the multiprocessor system. A system restart control management unit 10 for controlling is mounted. The processors 1, 2, and 3 are physical processors to which physical processor numbers are assigned, and one or more logical processor types having different functions are assigned to each processor to configure a multiprocessor system.

The system restart control management section 10 includes a system restart processor determining section 11 for determining a processor to restart the system, a restart processor definition table 41
P-LP conversion table 42 and LP-PP conversion table 4
3 for centrally managing the occurrence of restart of each processor. The term “resume” refers to the initialization of software (including management data) for controlling the processor. The processing program executed first when the power is turned on or after the program is loaded is started by software and initialized. It is referred to as the operation state.

The system restart processor determination section 11 receives a restart occurrence notification signal 111 for notifying that the restart has been performed from the restarted processor 2, and sets a restart processor definition table 41, PP-L stored in the station data storage section 4.
The processor 3 to be restarted is determined using the P conversion table 42 and the LP-PP conversion table 43, and a restart request signal 115 for instructing autonomous restart is transmitted to the processor 3 to be restarted.

The resumed processor definition table 41 is a table in which the types of logical processors that need to be restarted in parallel are defined. It has a configuration that can be specified.

The PP-LP conversion table 42 is a table showing the relationship between each processor and all logical processor types allocated to each processor. The PP-LP conversion table 42 is allocated to each processor using the physical processor number of each processor as a key. It is configured to be able to identify all the logical processor types.

The LP-PP conversion table 43 is a table showing the relationship between each logical processor type and all processors to which each logical processor type is assigned. The configuration is such that the physical processor numbers of all the allocated processors can be specified. The LP-PP conversion table 43 and the PP-LP conversion table 42 have a reverse relationship.

Next, the operation of the embodiment of the present invention will be described in detail with reference to FIG.

FIG. 2 is a flowchart for explaining the operation of the restart control device according to the present invention.

The case where the system restart control management unit 10 mounted on the processor 1 receives the restart occurrence notification signal 111 from the restarted processor 2 will be described.

The system restart processor determination unit 11 in the system restart control management unit 10 first searches the processor 2 in which restart has occurred for what kind of logical processor is mounted by using the PP-LP conversion table 42 (S).
112). Next, for each assigned logical processor type, a search is made using the restarted processor definition table 41 to find out what other logical processor types need to be restarted (S113). When a plurality of logical processor types are allocated, the logical processor type is determined by a logical sum (OR) of the respective search results. Next, all the physical processor numbers to which the logical processor types that need to be restarted are allocated are searched using the LP-PP conversion table 43 (S114). If there are a plurality of logical processor types that need to be restarted, they are determined by the logical sum (OR) of the results of each search process. Finally, a restart request signal 115 for instructing autonomous restart is transmitted to the processor 3 indicated by the physical processor number that needs to be restarted.

Next, a specific operation of the embodiment of the present invention will be described in detail with reference to FIGS.

FIG. 3 is a diagram for explaining the restart processor definition table shown in FIG. 1, FIG. 4 is a diagram for explaining the PP-LP conversion table shown in FIG. 1, and FIG. FIG. 6 is a diagram for explaining the LP-PP conversion table shown in FIG. 1, and FIG. 6 is a diagram for explaining a logical processor type according to the embodiment of the present invention.

As a multiprocessor system, an SMP (System M) functioning as a system restart control processor
RMP (Resource Management Processo) that functions as an
r), CLP (Cal
l Processor) has three types of logical processors,
A description will be given using an example in which these three types of logical processors are distributed and assigned to six processors to which physical processor numbers CP00 to CP05 are assigned. The system restart control management unit 10 is mounted on a processor to which the physical processor number CP00 is assigned.

When the processor CP01 is restarted, the system restart control management unit 10 mounted on the processor CP00 receives the restart occurrence notification signal 111 from the restarted processor CP01 and uses the physical processor number CP01 of the processor CP01 as a key. The PP-LP conversion table 42 is searched. As a result, the processor CP01
Are determined to be the logical processor type RMP and the logical processor type CLP. Next, the restart processor definition table 41 is searched using the logical processor type RMP and the logical processor type CLP as keys. As a result, it is found that there is no other logical processor type that needs to be restarted in the logical processor type CLP, and that the logical processor type RMP of another processor needs to be restarted in the logical processor type RMP. Next, the LP-PP conversion table 43 is searched using the logical processor type RMP as a key. As a result, the processors to which the logical processor type RMP is assigned are the physical processor numbers CP01 and CP0.
3. It is determined that the processor is provided with CP05. Next, a restart request signal 115 for instructing autonomous restart is transmitted to the processors CP03 and CP05 except the processor CP01 in which the restart has occurred.

As described above, according to the present embodiment, in a multiprocessor system in which functions are distributed, information regarding restart is centrally managed by one processor, so that even if restart occurs in any processor, parallel processing can be performed. Thus, there is an effect that only the processor that needs to be restarted can be restarted.

Further, according to the present embodiment, in a multiprocessor system in which functions are distributed, one processor integrally manages information on restart, so that it is not necessary to hold information on a processor associated with each processor. There is an effect that the system can be easily managed.

In the present embodiment, the restart of the processor has been described. However, the present invention is not limited to the restart, but can be applied to various restart processing items including regulation. That is, a table indicating the relationship between the restart-time processing item corresponding to the restart processor definition table 41 and the processing item that must be processed in parallel, the PP-LP conversion table 42 and the LP-LP
A table indicating the relationship between the restart-time process item corresponding to the PP conversion table 43 and the processor on which the restart-time process item is executed is created, and the restart-time process item is managed in this table to execute a series of processes at the time of restart. Is managed centrally.

Further, when each processor is restarted, it is more preferable to rewrite the contents of the PP-LP conversion table 42 and the LP-PP conversion table 43 stored in the station data storage unit 4. In other words, when each processor is restarted, the type of the logical processor to be allocated is also notified to the system restart control management unit 10 so that the PP-LP conversion table 42 and the LP-PP conversion table 43 stored in the station data storage unit 4 are changed. It can be updated. Thus, even when each processor performs a restart with a change in the assigned logical processor type, a new processor configuration, that is, the logical processor type newly allocated to the restarted processor is automatically set to P.
P-LP conversion table 42 and LP-PP conversion table 4
3, and the PP-LP conversion table 42 and LP
This has the effect of eliminating the need to modify the -PP conversion table 43.

It should be noted that the present invention is not limited to the above embodiments, and it is clear that the embodiments can be appropriately modified within the scope of the technical idea of the present invention. Further, the number, position, shape, and the like of the constituent members are not limited to the above-described embodiment, but can be set to numbers, positions, shapes, and the like suitable for carrying out the present invention. In the drawings, the same components are denoted by the same reference numerals.

[0027]

According to the present invention, the restart control apparatus and the restart control method according to the present invention provide a multiprocessor system in which functions are distributed. There is an effect that only the processors that need to be restarted in parallel can be restarted. Further, the restart control device and the restart control method according to the present invention do not need to hold the information of the processor related to each processor by centrally managing the information regarding the restart in one processor in a multiprocessor system in which functions are distributed. ,
There is an effect that the system can be easily managed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of a restart control device according to the present invention.

FIG. 2 is a flowchart for explaining the operation of the restart control device according to the present invention.

FIG. 3 is a diagram for explaining a restart processor definition table shown in FIG. 1;

FIG. 4 is a diagram for explaining a PP-LP conversion table shown in FIG. 1;

FIG. 5 is a diagram for explaining an LP-PP conversion table shown in FIG. 1;

FIG. 6 is a diagram illustrating a logical processor type according to the embodiment of the present invention;

[Explanation of symbols]

 1, 2, 3 processor 4 station data storage unit 10 system resumption control management unit 11 system resumption processor determination unit 41 resumption processor definition table 42 PP-LP conversion table 43 LP-PP conversion table 111 resumption occurrence notification signal 115 resumption request signal

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G06F 15/16-15/177 G06F 11/20

Claims (4)

(57) [Claims] 1. A restart control device for controlling restart of a processor in a multiprocessor system in which a plurality of logical processor types are distributed and assigned to a plurality of processors, wherein the logical processor types to be restarted in parallel are defined. A restarted processor definition table, a logical processor type search table for searching for the logical processor type allocated to the processor from the processor, and searching for the processor to which the logical processor type is allocated from the logical processor type A table search unit that stores the restart processor definition table, the logical processor type search table, and the processor search table; and the restart processor definition table and the logical processor type search table. A restart processor specifying means for specifying the processor to be restarted in parallel with the processor restarted using the processor lookup table; and a restart instruction signal for instructing autonomous restart to the processor specified by the restart processor specifying means. And a restart instruction signal output means. 2. The restarting processor specifying means causes the restarted processor to specify the logical processor type assigned to the restarted processor using the logical processor type search table, and the specified logical processor From the type, the logical processor type to be restarted in parallel with the specified logical processor type is specified by using the restart processor definition table, and the processor search table is obtained from the specified logical processor type to be restarted in parallel. 2. The restart control apparatus according to claim 1, wherein the processor to which the specified logical processor type to be restarted in parallel is assigned is specified by using the processor. 3. A method according to claim 1, wherein the plurality of processors include a plurality of logical processors.
A restart control method in a multiprocessor system in which server types are distributed and assigned, wherein a restart processor definition table in which the logical processor types to be restarted in parallel are defined, and the processor assigned to the processor by the processor. Using the logical processor type search table for searching for the logical processor type and the processor search table for searching for the processor to which the logical processor type is assigned from the logical processor type, restarting the processor in parallel with the processor restarted. A restart control method comprising: specifying a processor; and outputting a restart instruction signal for instructing autonomous restart to the specified processor. 4. A logical processor type assigned to the restarted processor from the restarted processor using the logical processor type search table, and the restart processor definition table is determined from the specified logical processor type. The logical processor type to be restarted in parallel with the specified logical processor type is specified by using the specified logical processor type, and the specified logical processor type to be restarted in parallel with the specified logical processor type is specified by using the processor search table. 4. The restart control method according to claim 3, wherein the processor to which the logical processor type to be restarted in parallel is assigned is specified.