mpscnnconvolutiondatasource-p(3) [mojave man page]
<MPSCNNConvolutionDataSource>(3) MetalPerformanceShaders.framework <MPSCNNConvolutionDataSource>(3) NAME
<MPSCNNConvolutionDataSource> SYNOPSIS
#include <MPSCNNConvolution.h> Detailed Description Provides convolution filter weights and bias terms The MPSCNNConvolutionDataSource protocol declares the methods that an instance of MPSCNNConvolution uses to obtain the weights and bias terms for the CNN convolution filter. Why? CNN weights can be large. If multiple copies of all the weights for all the convolutions are available unpacked in memory at the same time, some devices can run out of memory. The MPSCNNConvolutionDataSource is used to encapsulate a reference to the weights such as a file path, so that unpacking can be deferred until needed, then purged soon thereafter so that not all of the data must be in memory at the same time. MPS does not provide a class that conforms to this protocol. It is up to the developer to craft his own to encapsulate his data. Batch normalization and the neuron activation function are handled using the -descriptor method. Thread safety: The MPSCNNConvolutionDataSource object can be called by threads that are not the main thread. If you will be creating multiple MPSNNGraph objects concurrently in multiple threads and these share MPSCNNConvolutionDataSources, then the data source objects may be called reentrantly. Author Generated automatically by Doxygen for MetalPerformanceShaders.framework from the source code. Version MetalPerformanceShaders-100 Thu Feb 8 2018 <MPSCNNConvolutionDataSource>(3)
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MPSCNNConvolutionTransposeNode(3) MetalPerformanceShaders.framework MPSCNNConvolutionTransposeNode(3) NAME
MPSCNNConvolutionTransposeNode SYNOPSIS
#import <MPSNNGraphNodes.h> Inherits MPSCNNConvolutionNode. Instance Methods (nonnull instancetype) - initWithSource:convolutionGradientState:weights: Class Methods (nonnull instancetype) + nodeWithSource:convolutionGradientState:weights: Properties MPSCNNConvolutionGradientStateNode * convolutionGradientState Detailed Description A MPSNNFilterNode representing a MPSCNNConvolutionTranspose kernel Method Documentation - (nonnull instancetype) initWithSource: (MPSNNImageNode *__nonnull) sourceNode(MPSCNNConvolutionGradientStateNode *__nullable) convolutionGradientState(nonnull id< MPSCNNConvolutionDataSource >) weights Init a node representing a MPSCNNConvolutionTransposeNode kernel Parameters: sourceNode The MPSNNImageNode representing the source MPSImage for the filter convolutionGradientState When the convolution transpose is used to 'undo' an earlier convolution in the graph, it is generally desired that the output image be the same size as the input image to the earlier convolution. You may optionally specify this size identity by passing in the MPSCNNConvolutionGradientState node here. weights A pointer to a valid object conforming to the MPSCNNConvolutionDataSource protocol. This object is provided by you to encapsulate storage for convolution weights and biases. Returns: A new MPSNNFilter node for a MPSCNNConvolutionTransposeNode kernel. + (nonnull instancetype) nodeWithSource: (MPSNNImageNode *__nonnull) sourceNode(MPSCNNConvolutionGradientStateNode *__nullable) convolutionGradientState(nonnull id< MPSCNNConvolutionDataSource >) weights Init an autoreleased not representing a MPSCNNConvolutionTransposeNode kernel Parameters: sourceNode The MPSNNImageNode representing the source MPSImage for the filter convolutionGradientState When the convolution transpose is used to 'undo' an earlier convolution in the graph, it is generally desired that the output image be the same size as the input image to the earlier convolution. You may optionally specify this size identity by passing in the MPSNNConvolutionGradientStateNode created by the convolution node here. weights A pointer to a valid object conforming to the MPSCNNConvolutionDataSource protocol. This object is provided by you to encapsulate storage for convolution weights and biases. Returns: A new MPSNNFilter node for a MPSCNNConvolutionTransposeNode kernel. Property Documentation - (MPSCNNConvolutionGradientStateNode*) convolutionGradientState [read], [nonatomic], [assign] unavailable Author Generated automatically by Doxygen for MetalPerformanceShaders.framework from the source code. Version MetalPerformanceShaders-100 Thu Feb 8 2018 MPSCNNConvolutionTransposeNode(3)