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fix(example/neural-style-transfer): fixed panic at GPU test on Colab

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This commit is contained in:
sugarme 2020-07-05 14:53:11 +10:00
parent d755672250
commit 8fc6efca1c
1 changed files with 8 additions and 4 deletions
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12
example/neural-style-transfer/main.go
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@ -8,6 +8,7 @@ import (
"fmt"
"log"
"path/filepath"
"time"
"github.com/sugarme/gotch"
"github.com/sugarme/gotch/nn"
@ -143,6 +144,7 @@ func main() {
log.Fatal(err)
}
startTime := time.Now()
styleWeight := ts.FloatScalar(StyleWeight)
for stepIdx := 1; stepIdx <= int(TotalSteps); stepIdx++ {
inputLayers := net.ForwardAllT(inputVar, false, maxLayer)
@ -156,7 +158,7 @@ func main() {
l.MustDrop()
}
for _, idx := range ContentIndexes {
// l := inputLayers[idx].MustMseLoss(contentLayers[idx], ts.ReductionMean.ToInt(), true)
// NOTE: set `del` = true called panic at GPU train (tested on Colab)
l := inputLayers[idx].MustMseLoss(contentLayers[idx], ts.ReductionMean.ToInt(), false)
cLoss = cLoss.MustAdd(l, true)
l.MustDrop()
@ -173,18 +175,20 @@ func main() {
if (stepIdx % 1000) == 0 {
clone := inputVar.MustShallowClone()
img := clone.MustDetach()
imageTs := img.MustTo(device, true)
clone.MustDrop()
err := in.SaveImage(img, fmt.Sprintf("../../data/neural-style-transfer/out%v.jpg", stepIdx))
err := in.SaveImage(imageTs, fmt.Sprintf("../../data/neural-style-transfer/out%v.jpg", stepIdx))
if err != nil {
log.Fatal(err)
}
img.MustDrop()
imageTs.MustDrop()
}
fmt.Printf("Step %v ... Done. Loss %10.1f\n", stepIdx, loss.Values()[0])
cLoss.MustDrop()
loss.MustDrop()
}
fmt.Printf("Taken time:\t%.2f mins\n", time.Since(startTime).Minutes())
}