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layer_bwddata.go
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/
layer_bwddata.go
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package gocunets
import (
"errors"
)
//BackProp does the backprop of a layer
// Transpose workspace backward is actually forward
func (l *Layer) backpropdata() error {
handle := l.h.Handler
bwdwspace := l.workspacebwd
err := handle.Sync()
if err != nil {
return err
}
if l.cnn != nil {
dx, dy := l.dx.Tensor, l.dy.Tensor
err = l.cnn.BackPropData(handle, bwdwspace, dx, dy)
if err != nil {
return err
}
return handle.Sync()
}
if l.activation != nil {
x := l.x.Tensor
dx := l.dx.Tensor
y := l.y.Tensor
dy := l.dy.Tensor
err = l.activation.BackProp(handle, x, dx, y, dy)
if err != nil {
return err
}
return handle.Sync()
}
if l.drop != nil {
dx, dy := l.dx.Tensor, l.dy.Tensor
err = l.drop.BackProp(handle, dx, dy)
if err != nil {
return err
}
return handle.Sync()
}
if l.pool != nil {
x := l.x.Tensor
dx := l.dx.Tensor
y := l.y.Tensor
dy := l.dy.Tensor
err = l.pool.BackProp(handle, x, dx, y, dy)
if err != nil {
return err
}
return handle.Sync()
}
if l.reshape != nil {
dx, dy := l.dx.Tensor, l.dy.Tensor
err = l.reshape.BackProp(handle, dx, dy)
if err != nil {
return err
}
return handle.Sync()
}
if l.batch != nil {
x, dx, dy := l.x.Tensor, l.dx.Tensor, l.dy.Tensor
err = l.batch.BackProp(handle, x, dx, dy)
if err != nil {
return err
}
return handle.Sync()
}
if l.cnntranspose != nil {
dx, dy := l.dx.Tensor, l.dy.Tensor
err = l.cnntranspose.BackPropData(handle, bwdwspace, dx, dy)
if err != nil {
return err
}
return handle.Sync()
}
return errors.New("Layer Not Set Up")
}