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Smarter default number of workers #74

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May 9, 2022
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Smarter default number of workers #74

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8 changes: 8 additions & 0 deletions core/threaded/reactor_threaded.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1096,6 +1096,14 @@ void determine_number_of_workers(void) {
#if !defined(NUMBER_OF_WORKERS) || NUMBER_OF_WORKERS == 0
// Use the number of cores on the host machine.
_lf_number_of_workers = lf_available_cores();

// If reaction graph breadth is available. Cap number of workers
#if defined(LF_REACTION_GRAPH_BREADTH)
if (LF_REACTION_GRAPH_BREADTH < _lf_number_of_workers) {
_lf_number_of_workers = LF_REACTION_GRAPH_BREADTH;
}
#endif

#else
// Use the provided number of workers by the user
_lf_number_of_workers = NUMBER_OF_WORKERS;
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