NUFEB: A massively parallel simulator for individual-based modelling of microbial communities
Fig 9
Performance of Case Study 2 with 4–256 processors.
The initial conditions and the model parameters are kept the same in all cases. The average achieved particle number of all cases is 4.77 × 106 with 0.5% standard deviation. The difference is due to the randomness in sub-domains. The simulation with 4 processors is regarded as baseline case for computing speed-up. Doubling the numbers of processors results in almost double speed-up when small processor numbers are employed (e.g., less than 32). However, the speed-up and parallel efficiency decrease with increasing numbers of processors due to inter-processor communication.