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go: continue improving number of goroutines

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This commit is contained in:
NunoSempere 2024-02-16 15:19:26 +01:00
parent aa3b406473
commit b358c5b16a
2 changed files with 11 additions and 31 deletions
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go/squiggle.go
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@ -102,42 +102,22 @@ func main() {
sample_few := func(r source) float64 { return sample_to(1, 3, r) }
sample_many := func(r source) float64 { return sample_to(2, 10, r) }
fs := [4](func64){sample_0, sample_1, sample_few, sample_many}
model := func(r source) float64 { return sample_mixture(fs[0:], ws[0:], r) }
var n_samples int = 1_000_000
var xs = make([]float64, n_samples)
var xs0 = xs[0:250_000]
var xs1 = xs[250_000:500_000]
var xs2 = xs[500_000:750_000]
var xs3 = xs[750_000:1_000_000]
model := func(r source) float64 { return sample_mixture(fs[0:], ws[0:], r) }
var wg sync.WaitGroup
wg.Add(4)
// Note: these should have different randomness functions!!
var h = n_samples / 16
wg.Add(16)
for i := range 16 {
var xs_i = xs[i*h : (i+1)*h]
go func() {
defer wg.Done()
var r = rand.New(rand.NewPCG(1, 2))
slice_fill(xs0, model, r)
}()
go func() {
defer wg.Done()
var r = rand.New(rand.NewPCG(2, 3))
slice_fill(xs1, model, r)
}()
go func() {
defer wg.Done()
var r = rand.New(rand.NewPCG(3, 4))
slice_fill(xs2, model, r)
}()
go func() {
defer wg.Done()
var r = rand.New(rand.NewPCG(4, 5))
slice_fill(xs3, model, r)
var r = rand.New(rand.NewPCG(uint64(i), uint64(i+1)))
slice_fill(xs_i, model, r)
}()
}
wg.Wait()
var avg float64 = 0