Merge pull request #51 from qmuntal/sync

Fix race condition on ParallelInit
MaxHalford · Feb 12, 2021 · 3581619 · 3581619
2 parents 90770d5 + a965058
commit 3581619
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/individuals.go b/individuals.go
@@ -52,8 +52,9 @@ func newIndividuals(n uint, parallel bool, newGenome func(rng *rand.Rand) Genome
 	for a := uint(0); a < n; a += chunkSize {
 		a := a // https://golang.org/doc/faq#closures_and_goroutines
 		var b = minUint(a+chunkSize, n)
+		seed := rng.Int63()
 		g.Go(func() error {
-			indRNG := rand.New(rand.NewSource(rng.Int63()))
+			indRNG := rand.New(rand.NewSource(seed))
 			for i := a; i < b; i++ {
 				indis[i] = NewIndividual(newGenome(indRNG), indRNG)
 			}