JPH0973435A - Test system for closely coupled multiprocessor system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a test system which can automatically selects and allocate an applicable test program to a central processor and execute it at the same time. SOLUTION: For the closely coupled multiprocessor system, a central processor connection state confirming means 3 is used to count the number of central processors, the applicable test program is automatically selected by using a test program registering means 4 and registered in a test program registration table 7, and respective test programs are allocated to the respective central processors by using a central processor allocating means 5; and a test program simultaneous executing means 6 is used to execute the test programs assigned to the central processors at the same time.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to tightly coupled multiprocessor systems and, more particularly, to tightly coupled multiprocessor system testing techniques used to evaluate tightly coupled multiprocessor systems.

[0002]

2. Description of the Related Art Conventionally, as a technique relating to a test for evaluating a tightly coupled multiprocessor system, for example, as described in Japanese Patent Application Laid-Open No. 2-259842.
A method has been used in which the functional evaluations of all the central processing units that are logically connected are automatically and continuously performed. In the tightly coupled multiprocessor system test method described in JP-A-2-259842, after the test of one central processing unit is completed, the central processing unit is stopped and the next central processing unit is started.

[0003]

The above-described conventional tightly coupled multiprocessor system test method does not take into consideration the fact that a plurality of central processing units are simultaneously operated, and memory control peculiar to the tightly coupled multiprocessor system is not taken into consideration. However, there is a drawback in that the verification of the parts cannot be performed sufficiently and it takes time to execute a plurality of test programs.

An object of the present invention is to eliminate the above-mentioned drawbacks and to provide a tightly coupled multiprocessor test technique with less operation and good evaluation efficiency.

[0005]

A test system for a tightly coupled multiprocessor system according to the present invention comprises a central processing unit connection state confirmation means for recognizing the number of central processing units logically connected to the tightly coupled multiprocessor system. And a test program registration table for registering a test program and a test program registration for automatically searching a test program applicable to the tightly coupled multiprocessor system from a test program group and registering it in the test program registration table. Means, a test running flag corresponding to the test program registration table and the number of central processing units, and the test programs are automatically applied to all central processing units logically connected to the tightly coupled multiprocessor system. Central processing unit allocating means for allocating, and said tightly coupled multiprocessor system And a test program concurrent means for executing simultaneously the test program in full central processing unit in the logical connection state.

[0006]

The central processing unit connection state recognizing means counts the number of central processing units that are logically connected. The test program registration means retrieves a test program applicable to the tightly coupled multiprocessor system from the test program group and registers it in the test program registration table. The central processing unit allocating unit allocates the execution control right of the unexecuted test program to the central processing unit. The central processing unit allocating means has means for allocating execution control of separate test programs to each central processing unit, and means for allocating execution control of the same test program to each central processing unit. assign. The test program simultaneous execution means simultaneously executes the test programs assigned to the central processing units.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing a configuration of a test system for a tightly coupled multiprocessor system according to an embodiment of the present invention, and FIG. 2 is a block diagram showing a test environment of the test system. As shown in FIG. 1, the test system for the tightly coupled multiprocessor system according to this embodiment includes a test monitor program 1 and a test program group 2.

The test monitor program 1 includes a central processing unit connection state confirmation unit 3, a test program registration unit 4, a central processing unit allocation unit 5, a test program simultaneous execution unit 6, a test program registration table 7, and a test running flag. 8 and a test control unit 9. The test program group 2 has a tightly coupled multiprocessor system test program A10, a tightly coupled multiprocessor system test program B11, a single processor system test program C12, and a single processor system test program D13.

As shown in FIG. 2, the tightly coupled multiprocessor system 14 forming the test environment includes CPU-A15 and C-A15.
It has a PU-B 16, a memory 17, and a memory control unit 18. Further, when the test monitor program 1 and the test program group 2 are stored in the memory 17, the test monitor program 1 is automatically started.

Next, the operation of this embodiment will be described with reference to the drawings.

First, the tightly coupled multiprocessor system 1
Start up 4. At this time, the test monitor program 1 and the test program group 2 are loaded into the memory 17, and the control is transferred to the test monitor program 1.

Next, the control is transferred to the central processing unit connection state confirmation means 3, where the tightly coupled multiprocessor system 1 is provided.
The number of central processing units logically connected to 4 is counted, and control is transferred to the test program registration means 4. In the case of FIG. 2, since the CPU-A15 and the CPU-B16 are in the logical connection state, the central processing unit is counted as two units.

The test program registration means 4 searches the test program group 2 for a test program applicable to the tightly coupled multiprocessor system, registers it in the test program registration table 7, and sets the test running flag 8 for the number of central processing units. Turn off.

In this embodiment, since there are two test programs, test program A10 and test program B11, which can be applied to the tightly coupled multiprocessor system 14, two test programs are stored in the test program registration table 7. Is registered, each test running flag 8 is turned off for two central processing units, and control is transferred to the central processing unit allocating means 5.

The central processing unit allocating means 5 has means for allocating a different test program to each central processing unit and means for allocating the same test program to each central processing unit. In the present embodiment, each central processing unit is allocated. It will be described by means of allocating different test programs to. The central processing unit allocating means 5 refers to the test program registration table 7 and the test running flag 8 to CP the test program A10.
Test program B11 to CPU-B16 in U-A15
, And each test program is executed by calling the test program simultaneous execution means 6 and the test control unit 9. When the execution of each test program is completed, the test control unit 9 turns on the test running flag 8 corresponding to each central processing unit of each test program, and moves the processing to the central processing unit allocating means 5 again.

The central processing unit allocating means 5 refers to the test program registration table 7 and the test running flag 8 corresponding to each central processing unit, and the test program A10 causes the CPU-
Not executed in B16, test program B11 is CPU-A1
5 that the test program B11 is the CPU-A15 and the test program A10 is the CPU-B.
The test is executed by assigning it to 16 and calling the test program simultaneous execution means 6 and the test control section 9 again. When the execution of each test program is completed, the test control unit 9 causes the test running flag 8 corresponding to each central processing unit of each test program.
Is turned off and the processing is transferred to the central processing unit allocating means 5.

The central processing unit allocating means 5 refers to the test program registration table 7 and the test running flag 8 corresponding to each central processing unit, and all the test programs applicable to the tightly coupled multiprocessor system are all centralized. After confirming that the test has been executed by the apparatus, the process is transferred to the test monitor program 1 and the test ends.

According to this embodiment, for example, a test program for performing DMA transfer between HD and memory and a test program for performing DMA data transfer between DAT and memory are provided in the CPU-
By executing A15 and CPU-B16 at the same time,
There is an effect that a load is applied to the memory and a test focusing on the verification of the memory control unit 18 by the hardware can be efficiently performed.

[0020]

As described above, the present invention simplifies the test operation by automatically and simultaneously evaluating all the central processing units in the logically connected state in the tightly coupled multiprocessor system. And, there is an effect that the evaluation time can be shortened.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of a test system for a tightly coupled multiprocessor system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a test environment of a test system for a tightly coupled multiprocessor system according to an embodiment of the present invention.

[Explanation of symbols]

1 ... test monitor program, 2 ... test program group,
3 ... Central processing unit connection state confirmation means, 4 ... Test program registration means, 5 ... Central processing unit allocation means, 6 ... Test program simultaneous execution means, 7 ... Test program registration table, 8 ... Test running flag, 9 ... Test control unit, 10, 1
1, 12 ... Test program, 13 ... Test program 4,
14 ... Tightly coupled multiprocessor system, 15 ... CPU
-A, 16 ... CPU-B, 17 ... Memory, 18 ... Memory control unit.

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Yasuyuki Ishiki 1-13-12 Fukuzumi, Koto-ku, Tokyo Inside Hitachi East Service Engineering Co., Ltd.

Claims (1)

[Claims] 1. In a tightly coupled multiprocessor system in which a plurality of central processing units share a memory, the number of central processing units logically connected to the tightly coupled multiprocessor system among the plurality of central processing units. A central processing unit connection state confirmation means for recognizing a test program, a test program registration table for registering a test program, and a test program applicable to the tightly coupled multiprocessor system are automatically searched for from the test program group and the test program A test program registration means for registering in a registration table, a test running flag corresponding to the test program registration table and the number of central processing units, and all central units logically connected to the tightly coupled multiprocessor system. Central processing unit assigning means for automatically assigning the test program to a processing unit The test system tightly coupled multiprocessor system and having a test program concurrent means for executing simultaneously the test program in full central processing unit which is logically connected state to the tightly coupled multiprocessor system.