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Parallel Computation Efficiency Improvements In Particle-Based Numerical Simulation Of Explosion Event
Parallel Computation Efficiency Improvements In Particle-Based Numerical Simulation Of Explosion Event
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机译：基于粒子的爆炸事件数值模拟中并行计算效率的提高
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摘要
A particle-based method model containing a number of particles for representing a domain of an explosion event in a time-marching simulation is received in multi-processor computer system. The domain is divided into a set of sub-domains with each sub-domain containing substantially equal number of particles. Sub-domains are assigned to respective processors of the computer system. Numerically-calculated particle behaviors are obtained by conducting time-marching simulation in parallel computations according to the particle-based method. When the simulation time has not reached a predefined termination time, total number of particles in each sub-domain is summed up after each solution cycle. If an indicator derived from the total number of particles in each sub-domain shows workload imbalance, the domain is repartitioned with number of particles rebalanced into new set of sub-domains before conducting further time-marching simulation. Otherwise the time-marching simulation is conducted with the existed set of sub-domains.
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