Parallel boundary scanning method based on large-scale computer system

Abstract

The invention relates to the technical field of boundary scanning of computer systems, and discloses a parallel boundary scanning method based on a large-scale computer system, which comprises the following steps: 1, system-level parallel boundary scanning is performed on a system main control management module by a system management terminal, a corresponding number of threads are created according to the number of parallel connections on the system main control management module; 2, the running system master control management module performs out-of-band diagnosis test on parallel computer nodes. The diagnosis test module and the serial port terminal module are arranged in the system main control management module, so that the system main control management module can dynamically debug and manage the node controller under the condition of not influencing the normal operation of the system node, and can access the memory storage unit, the internal register and the external equipment, dynamic implicit faults and partial explicit static faults occurring in system operation can be detected.

Description

technical field [0001] The invention relates to the technical field of boundary scan of computer systems, in particular to a parallel boundary scan method based on a large-scale computer system. Background technique [0002] In modern electronic application systems, parallel computer systems are usually composed of multiple nodes, each node has its own microprocessor, node controller, local memory, interconnection communication interface, input and output devices, etc., forming a relatively independent system , all nodes are interconnected through the interconnection communication interface to form a high-performance parallel computer system. With the development of VLSI technology and the improvement of printed circuit board manufacturing technology, the performance of the current parallel computer system is improving day by day. The scale and complexity are also increasing day by day. It is necessary to use boundary scan technology to test whether the connection between th...

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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a parallel boundary scan method based on a large-scale computer system, which solves the problem that it cannot fully meet the requirements of real-time testing and diagnosis, and cannot detect dynamic implicit faults and partial display faults that occur during system operation. static faults, it is impossible to obtain real-time operating status information inside the system without affecting the normal operation of the system, it is impossible to perform out-of-band diagnostic tests on the system, and it is impossible to implement parallel out-of-band diagnostic tests on multiple nodes of a parallel computer system

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