Method for carrying out parallel simulation by repeatedly switching a plurality of operation modes of simulator

Abstract

The invention discloses a method for carrying out parallel simulation by repeatedly switching a plurality of operation modes of a simulator, and aims at reducing the loss of simulation precision and the simulation time. The technical scheme of the invention is as follows: a host computer software and hardware platform of an operation simulator is constructed, a server node is provided with a control software of a server-side, and a simulation node is provided with a control software of a client; the control software of the server-side carries out global configuration and initialization on thenodes participating in the parallel simulation; the server node and the simulation node are performed with communication initialization; the control software of the client operates the simulator on the simulation node; the simulation nodes parallelly simulate the same Benchmark program in the three modes, namely functional simulation, detailed pre-heating and detailed simulation; and the control software of the client monitors the changes of a local performance index file and a status file, acquires the operation information and sends the information to the server nodes, and the server node receives the information and correspondingly processes to obtain a simulation result. The invention has obvious accelerated effect, high parallel efficiency, and small precision loss.

Description

Technical field [0001] The present invention relates to a parallel simulation method of computer system architecture, in particular, it uses multiple parallel nodes to run a serial architecture simulator at the same time without changing the Benchmark program and its input set, and utilizes multiple operations supported by the simulator Parallel simulation method by repeatedly switching modes. Background technique [0002] Computer architecture simulation software (simulator for short) is a type of software that simulates the behavior of a computer system. They are generally configurable and can configure the architecture parameters or technical solutions of the target computer system. It is called the host computer) to simulate and run the Benchmark program (including the real benchmark test program or automatically generated workload) to obtain the performance data of the target system under a given configuration, and to provide a reference for the architecture design decision ...

AI Technical Summary

Problems solved by technology

[0008] 1) Loss of simulation accuracy due to partial simulation

Since only a part of the Benchmark program or input data is simulated, there is a certain error compared with the load characteristics of the complete Benchmark program

In addition, the speedup ratio obtained by the above techniques is always inversely proportional to the accuracy. Taking sampling simulation as an example, in order to improve the simulation accuracy, the number of sample intervals for detailed simulation must be increased, which will undoubtedly lead to an increase in simulation overhead;

[0009] 2) Pre-processing or post-processing is required to achieve complex

[0013] According to the patent literature search, there are no related reports in the past patents and literatures that use the repeated switching of multiple operating modes of the existing serial simulator to realize parallel simulation.

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