Benchmarking the Sun HPC3500, Sun HPC6500 and the Wildfire system
نویسنده
چکیده
High performance computers are analysed using simple MPI, OpenMP and mixed mode Game of Life codes. Direct comparison between the HPC 3500 and HPC 6500 is used to approximate the operating system overhead present, and it is found that operating system uses up to 5% of the machine’s processing power. Vast performance increases are discovered when using OpenMP on the HPC 6500, which are due to caching effects caused by the shared memory nature of OpenMP. The scalability of the Wildfire system is investigated, it is found that the interconnect latency is negligible, though the operating system overhead can be witnessed.
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