/**
* Allocates the {@link GPUObject} for a given LOPS Variable (eg. _mVar3)
*
* @param varName variable name
* @return matrix object
* @throws DMLRuntimeException if DMLRuntimeException occurs
*/
public MatrixObject allocateGPUMatrixObject(String varName) throws DMLRuntimeException {
MatrixObject mo = getMatrixObject(varName);
if (mo.getGPUObject() == null) {
mo.setGPUObject(GPUContext.createGPUObject(mo));
}
return mo;
}
public MatrixObject getMatrixInputForGPUInstruction(String varName) throws DMLRuntimeException {
MatrixObject mo = getMatrixObject(varName);
if (mo == null) {
throw new DMLRuntimeException("No matrix object available for variable:" + varName);
}
if (mo.getGPUObject() == null) {
mo.setGPUObject(GPUContext.createGPUObject(mo));
}
boolean acquired = false;
if (!mo.getGPUObject().isAllocated()) {
mo.acquireRead();
acquired = true;
}
mo.getGPUObject().acquireDeviceRead();
if (acquired) {
mo.release();
}
return mo;
}