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Added reduction packet primitives for CUDA

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Benoit Steiner 2014-11-19 10:34:11 -08:00
parent b33cf92878
commit 509e4ddc02
1 changed files with 21 additions and 0 deletions
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21
Eigen/src/Core/arch/CUDA/PacketMath.h
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@ -223,6 +223,27 @@ template<> EIGEN_DEVICE_FUNC inline double pfirst<double2>(const double2& a) {
return a.x; return a.x;
} }
template<> EIGEN_DEVICE_FUNC inline float predux<float4>(const float4& a) {
return a.x + a.y + a.z + a.w;
}
template<> EIGEN_DEVICE_FUNC inline double predux<double2>(const double2& a) {
return a.x + a.y;
}
template<> EIGEN_DEVICE_FUNC inline float predux_max<float4>(const float4& a) {
return fmaxf(fmaxf(a.x, a.y), fmaxf(a.z, a.w));
}
template<> EIGEN_DEVICE_FUNC inline double predux_max<double2>(const double2& a) {
return fmax(a.x, a.y);
}
template<> EIGEN_DEVICE_FUNC inline float predux_min<float4>(const float4& a) {
return fminf(fminf(a.x, a.y), fminf(a.z, a.w));
}
template<> EIGEN_DEVICE_FUNC inline double predux_min<double2>(const double2& a) {
return fmin(a.x, a.y);
}
template<> EIGEN_DEVICE_FUNC inline float4 pabs<float4>(const float4& a) { template<> EIGEN_DEVICE_FUNC inline float4 pabs<float4>(const float4& a) {
return make_float4(fabs(a.x), fabs(a.y), fabs(a.z), fabs(a.w)); return make_float4(fabs(a.x), fabs(a.y), fabs(a.z), fabs(a.w));
} }