1. rcrnstn/fzy
  2. Commit 2142a44bf01d827c3a6f0b02f06b92d993a3fed6
Browse code

Use number of processors as worker count

Since we're dividing the search set equally between processors, we want
to run with the same number of workers that we have CPU execution
threads. This avoids having a worker which is starved until the end of
execution.

John Hawthorn authored on 23/06/2016 04:43:48
Showing 1 changed files
src/choices.c
History View file @ 2142a44
... ... 
@@ -2,6 +2,7 @@
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 #include <stdio.h>
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 #include <string.h>
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 #include <pthread.h>
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+#include <unistd.h>
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 #include "choices.h"
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 #include "match.h"
... ... 
@@ -104,7 +105,7 @@ void choices_init(choices_t *c) {
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 	c->capacity = c->size = 0;
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 	choices_resize(c, INITIAL_CHOICE_CAPACITY);
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-	c->worker_count = 8;
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+	c->worker_count = (int)sysconf(_SC_NPROCESSORS_ONLN);
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 	choices_reset_search(c);
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 }