---
title: MPSCNNPoolingGradientNode
framework: metalperformanceshaders
role: symbol
role_heading: Class
path: metalperformanceshaders/mpscnnpoolinggradientnode
---

# MPSCNNPoolingGradientNode

A representation of a gradient pooling kernel.

## Declaration

```swift
class MPSCNNPoolingGradientNode
```

## Topics

### Initializers

- [init(sourceGradient:sourceImage:gradientState:kernelWidth:kernelHeight:strideInPixelsX:strideInPixelsY:paddingPolicy:)](metalperformanceshaders/mpscnnpoolinggradientnode/init(sourcegradient:sourceimage:gradientstate:kernelwidth:kernelheight:strideinpixelsx:strideinpixelsy:paddingpolicy:).md)

### Instance Properties

- [kernelHeight](metalperformanceshaders/mpscnnpoolinggradientnode/kernelheight.md)
- [kernelWidth](metalperformanceshaders/mpscnnpoolinggradientnode/kernelwidth.md)
- [strideInPixelsX](metalperformanceshaders/mpscnnpoolinggradientnode/strideinpixelsx.md)
- [strideInPixelsY](metalperformanceshaders/mpscnnpoolinggradientnode/strideinpixelsy.md)

## Relationships

### Inherits From

- [MPSNNGradientFilterNode](metalperformanceshaders/mpsnngradientfilternode.md)

### Inherited By

- [MPSCNNDilatedPoolingMaxGradientNode](metalperformanceshaders/mpscnndilatedpoolingmaxgradientnode.md)
- [MPSCNNPoolingAverageGradientNode](metalperformanceshaders/mpscnnpoolingaveragegradientnode.md)
- [MPSCNNPoolingL2NormGradientNode](metalperformanceshaders/mpscnnpoolingl2normgradientnode.md)
- [MPSCNNPoolingMaxGradientNode](metalperformanceshaders/mpscnnpoolingmaxgradientnode.md)

### Conforms To

- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)

## See Also

### Pooling Layer Nodes

- [MPSCNNPoolingAverageNode](metalperformanceshaders/mpscnnpoolingaveragenode.md)
- [MPSCNNDilatedPoolingMaxNode](metalperformanceshaders/mpscnndilatedpoolingmaxnode.md)
- [MPSCNNPoolingL2NormNode](metalperformanceshaders/mpscnnpoolingl2normnode.md)
- [MPSCNNPoolingMaxNode](metalperformanceshaders/mpscnnpoolingmaxnode.md)
- [MPSCNNPoolingNode](metalperformanceshaders/mpscnnpoolingnode.md)
- [MPSCNNDilatedPoolingMaxGradientNode](metalperformanceshaders/mpscnndilatedpoolingmaxgradientnode.md)
- [MPSCNNPoolingAverageGradientNode](metalperformanceshaders/mpscnnpoolingaveragegradientnode.md)
- [MPSCNNPoolingL2NormGradientNode](metalperformanceshaders/mpscnnpoolingl2normgradientnode.md)
- [MPSCNNPoolingMaxGradientNode](metalperformanceshaders/mpscnnpoolingmaxgradientnode.md)