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Error when initial_sample_size < # processors #47

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jwarner308 opened this issue Aug 16, 2019 · 0 comments
Open

Error when initial_sample_size < # processors #47

jwarner308 opened this issue Aug 16, 2019 · 0 comments

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@jwarner308
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MLMCPy/MLMCPy/mlmc/MLMCSimulator.py:237: RuntimeWarning: divide by zero encountered in divide

The costs being calculated there is for a particular processor and then the average cost across all processors is communicated/calculated for figuring out the optimal sample sizes later. The proper fix will be to rearrange how the average cost is being calculated by communicating/summing the total time for all processors then dividing by the total number of processors.
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