com.emphysic.myriad.core.experimental.aparapi

Class OCLConvolutionOperation

java.lang.Object

com.emphysic.myriad.core.data.ops.ConvolutionOperation

com.emphysic.myriad.core.experimental.aparapi.OCLConvolutionOperation

All Implemented Interfaces:

DatasetOperation, ObjectMap, com.esotericsoftware.kryo.KryoSerializable

public class OCLConvolutionOperation
extends ConvolutionOperation

OCLConvolutionOperation - performs ConvolutionOperation on OpenCL devices. Created by chris on 9/1/2016.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) ConvolutionKernel	kern OpenCL convolution kernel.

Fields inherited from class com.emphysic.myriad.core.data.ops.ConvolutionOperation

kernel

Constructor Summary

Constructors

Constructor and Description
OCLConvolutionOperation()
OCLConvolutionOperation(Dataset k)
OCLConvolutionOperation(double[][] k)

Method Summary

Modifier and Type	Method and Description
void	initCurrentVersion(java.util.Map<java.lang.String,java.lang.Object> objectMap) Initializes an instance with a current-version object graph.
Dataset	run(Dataset input) Runs the convolution operator on the specified input file.

Methods inherited from class com.emphysic.myriad.core.data.ops.ConvolutionOperation

getHeight, getKernel, getObjectMap, getSerializationVersion, getVersion, getWidth

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.emphysic.myriad.core.data.util.ObjectMap

init, initPreviousVersion, initUnknownVersion, load, read, save, write

Field Detail

kern

ConvolutionKernel kern

OpenCL convolution kernel. Uses a 2D range so don't dispose()! https://github.com/tdeneau/aparapi/issues/144

Constructor Detail

OCLConvolutionOperation

public OCLConvolutionOperation()

OCLConvolutionOperation

public OCLConvolutionOperation(double[][] k)

OCLConvolutionOperation

public OCLConvolutionOperation(Dataset k)

Method Detail

run

public Dataset run(Dataset input)

Runs the convolution operator on the specified input file. The base ConvolutionOperator runs the identity kernel i.e. input and output data should be identical. If an accelerator that supports OpenCL is found, the convolution operation is performed on the "best" (as determined by number of compute units https://software.intel.com/sites/landingpage/opencl/optimization-guide/Basic_Concepts.htm ) device available. If no accelerator is found, the convolution operation is performed on the CPU using Java Thread Pools. This is also the case if the best device is a CPU - currently OpenCL on a CPU greatly underperforms native JTP.

Specified by:

run in interface DatasetOperation

Overrides:

run in class ConvolutionOperation

Parameters:

input - Dataset on which to operate

Returns:

convolved data

initCurrentVersion

public void initCurrentVersion(java.util.Map<java.lang.String,java.lang.Object> objectMap)

Description copied from interface: ObjectMap

Initializes an instance with a current-version object graph.

Specified by:

initCurrentVersion in interface ObjectMap

Overrides:

initCurrentVersion in class ConvolutionOperation

Parameters:

objectMap - object graph for initialization