GpuUtil.h

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/*-------------------------------------------------------------------
Copyright 2011 Ravishankar Sundararaman

This file is part of JDFTx.

JDFTx is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

JDFTx is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with JDFTx.  If not, see <http://www.gnu.org/licenses/>.
-------------------------------------------------------------------*/

#ifndef JDFTX_CORE_GPUUTIL_H
#define JDFTX_CORE_GPUUTIL_H



#ifdef GPU_ENABLED

#include <cstdio>
#include <cuda_runtime.h>
#include <cublas.h>
#include <cufft.h>
#include <vector>


bool gpuInit(FILE* fpLog=stdout, const std::vector<int>* mpiSiblings=0, double* nGPUs=0);

bool isGpuMine();

extern void gpuErrorCheck();

#endif //GPU_ENABLED


//A utility function to eliminate ugly #ifdef's when not required
inline bool isGpuEnabled()
{
        #ifdef GPU_ENABLED
        return true;
        #else
        return false;
        #endif
}
#endif // JDFTX_CORE_GPUUTIL_H