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Added polygamma function.

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Till Hoffmann
2016-04-01 14:35:21 +01:00
parent dd5d390daf
commit 57239f4a81
9 changed files with 118 additions and 5 deletions
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22
Eigen/src/Core/arch/CUDA/MathFunctions.h
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@@ -93,17 +93,31 @@ double2 pdigamma<double2>(const double2& a)
}
template<> EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
float4 pzeta<float4>(const float4& a)
float4 pzeta<float4>(const float4& x, const float4& q)
{
using numext::zeta;
return make_float4(zeta(a.x), zeta(a.y), zeta(a.z), zeta(a.w));
return make_float4(zeta(x.x, q.x), zeta(x.y, q.y), zeta(x.z, q.z), zeta(x.w, q.w));
}
template<> EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
double2 pzeta<double2>(const double2& a)
double2 pzeta<double2>(const double2& x, const double2& q)
{
using numext::zeta;
return make_double2(zeta(a.x), zeta(a.y));
return make_double2(zeta(x.x, q.x), zeta(x.y, q.y));
}
template<> EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
float4 ppolygamma<float4>(const float4& n, const float4& x)
{
using numext::polygamma;
return make_float4(polygamma(n.x, x.x), polygamma(n.y, x.y), polygamma(n.z, x.z), polygamma(n.w, x.w));
}
template<> EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
double2 ppolygamma<double2>(const double2& n, const double2& x)
{
using numext::polygamma;
return make_double2(polygamma(n.x, x.x), polygamma(n.y, x.y));
}
template<> EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE

1
Eigen/src/Core/arch/CUDA/PacketMath.h
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@@ -41,6 +41,7 @@ template<> struct packet_traits<float> : default_packet_traits
HasLGamma = 1,
HasDiGamma = 1,
HasZeta = 1,
HasPolygamma = 1,
HasErf = 1,
HasErfc = 1,
HasIgamma = 1,