Difference between revisions of "Mohid OpenMP"
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Revision as of 19:26, 13 September 2010
This wiki entry is about the project to parallelize Mohid with OpenMP directives.
Contents
Official benchmarking
Benchmarks must be identified with the processor type (intel, amd), the architecture (32bit, 64bit), the number of cores (#2, #4) and the number of threads (#4, #8, ...). The simulation must be given an id such as PCOMS, PCOMS-bio, Azores, etc... The benchmarks must be performed with the data contained in the MOHID Outwatches logs, once with the Model run without openmp, and once with the model run with openmp.
Benchmarking formula
The benchmark formula is:
Speedup = A / B, where A is time with openmp and B is time without openmp.
Official results
PCOMS 20100801 quad-core 4 threads
Module SubRoutine Time w/o Time w Speed-up
ModuleModel RunOneModel 727.679 193.4 0.87
Azores 20100801 six-core 12 threads
Module SubRoutine Time w/o Time w Speed-up
ModuleModel RunOneModel 8792.656 7627.37 0.27
Obs: the Module Life single loop was successfully parallelized.
