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Peter W. Draper's avatar
Peter W. Draper authored
Parallel space_rebuild()

Looking at some of the scaling results, it turns out that the last remaining significant chunk of non-parallel code is `space_rebuild()` and the majority of the time in there is spent computing the cell index of the particles. 
This can easily done in parallel and on the EAGLE_25 shows significant improvements in the code speed and scalability. Although I should say that this comes from running this on 16 cores only and based on the vTune outputs (which usually match the actual tests).

What do you think ?

See merge request !260
e6bc5754
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