CpuNonbondedForceAvx.cpp

/* Portions copyright (c) 2006-2015 Stanford University and Simbios.
 * Contributors: Pande Group
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#include "CpuNonbondedForceFvec.h"
#include "openmm/OpenMMException.h"

#ifdef __AVX__

#include "openmm/internal/vectorizeAvx.h"

bool isAvxSupported() {
    // Make sure the CPU supports AVX.
    int cpuInfo[4];
    cpuid(cpuInfo, 0);
    if (cpuInfo[0] >= 1) {
        cpuid(cpuInfo, 1);
        return ((cpuInfo[2] & ((int) 1 << 28)) != 0);
    }
    return false;
}

OpenMM::CpuNonbondedForce* createCpuNonbondedForceAvx() {
    return new OpenMM::CpuNonbondedForceFvec<fvec8>();
}

#else
bool isAvxSupported() {
    return false;
}

OpenMM::CpuNonbondedForce* createCpuNonbondedForceAvx() {
   throw OpenMM::OpenMMException("Internal error: OpenMM was compiled without AVX support");
}
#endif