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Merge pull request #29 from giltirn/master

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Grid_empty implementation and Lanzcos checkerboard fix
This commit is contained in:
Peter Boyle 2016-04-16 09:55:24 +01:00
commit 1494b0f397
4 changed files with 202 additions and 99 deletions
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2
lib/algorithms/iterative/ImplicitlyRestartedLanczos.h
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@ -564,6 +564,7 @@ until convergence
for(int j=k1-1; j<k2+1; ++j){
for(int k=0; k<Nm; ++k){
B[j].checkerboard = evec[k].checkerboard;
B[j] += Qt[k+Nm*j] * evec[k];
}
}
@ -592,6 +593,7 @@ until convergence
for(int j = 0; j<Nk; ++j){
for(int k = 0; k<Nk; ++k){
B[j].checkerboard = evec[k].checkerboard;
B[j] += Qt[k+j*Nm] * evec[k];
}
// std::cout << "norm(B["<<j<<"])="<<norm2(B[j])<<std::endl;

10
lib/simd/Grid_avx.h
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@ -410,22 +410,22 @@ namespace Optimization {
struct Permute{
static inline __m256 Permute0(__m256 in){
return _mm256_permute2f128_ps(in,in,0x01);
return _mm256_permute2f128_ps(in,in,0x01); //ABCD EFGH -> EFGH ABCD
};
static inline __m256 Permute1(__m256 in){
return _mm256_shuffle_ps(in,in,_MM_SELECT_FOUR_FOUR(1,0,3,2));
return _mm256_shuffle_ps(in,in,_MM_SELECT_FOUR_FOUR(1,0,3,2)); //ABCD EFGH -> CDAB GHEF
};
static inline __m256 Permute2(__m256 in){
return _mm256_shuffle_ps(in,in,_MM_SELECT_FOUR_FOUR(2,3,0,1));
return _mm256_shuffle_ps(in,in,_MM_SELECT_FOUR_FOUR(2,3,0,1)); //ABCD EFGH -> BADC FEHG
};
static inline __m256 Permute3(__m256 in){
return in;
};
static inline __m256d Permute0(__m256d in){
return _mm256_permute2f128_pd(in,in,0x01);
return _mm256_permute2f128_pd(in,in,0x01); //AB CD -> CD AB
};
static inline __m256d Permute1(__m256d in){
static inline __m256d Permute1(__m256d in){ //AB CD -> BA DC
return _mm256_shuffle_pd(in,in,0x5);
};
static inline __m256d Permute2(__m256d in){

283
lib/simd/Grid_empty.h
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@ -55,51 +55,67 @@ namespace Optimization {
struct Vsplat{
//Complex float
inline float operator()(float a, float b){
return 0;
inline u128f operator()(float a, float b){
u128f out;
out.f[0] = a;
out.f[1] = b;
out.f[2] = a;
out.f[3] = b;
return out;
}
// Real float
inline float operator()(float a){
return 0;
inline u128f operator()(float a){
u128f out;
out.f[0] = a;
out.f[1] = a;
out.f[2] = a;
out.f[3] = a;
return out;
}
//Complex double
inline double operator()(double a, double b){
return 0;
inline u128d operator()(double a, double b){
u128d out;
out.f[0] = a;
out.f[1] = b;
return out;
}
//Real double
inline double operator()(double a){
return 0;
inline u128d operator()(double a){
u128d out;
out.f[0] = a;
out.f[1] = a;
return out;
}
//Integer
inline int operator()(Integer a){
return 0;
return a;
}
};
struct Vstore{
//Float
inline void operator()(float a, float* F){
inline void operator()(u128f a, float* F){
memcpy(F,a.f,4*sizeof(float));
}
//Double
inline void operator()(double a, double* D){
inline void operator()(u128d a, double* D){
memcpy(D,a.f,2*sizeof(double));
}
//Integer
inline void operator()(int a, Integer* I){
I[0] = a;
}
};
struct Vstream{
//Float
inline void operator()(float * a, float b){
inline void operator()(float * a, u128f b){
memcpy(a,b.f,4*sizeof(float));
}
//Double
inline void operator()(double * a, double b){
inline void operator()(double * a, u128d b){
memcpy(a,b.f,2*sizeof(double));
}
@ -107,24 +123,40 @@ namespace Optimization {
struct Vset{
// Complex float
inline float operator()(Grid::ComplexF *a){
return 0;
inline u128f operator()(Grid::ComplexF *a){
u128f out;
out.f[0] = a[0].real();
out.f[1] = a[0].imag();
out.f[2] = a[1].real();
out.f[3] = a[1].imag();
return out;
}
// Complex double
inline double operator()(Grid::ComplexD *a){
return 0;
inline u128d operator()(Grid::ComplexD *a){
u128d out;
out.f[0] = a[0].real();
out.f[1] = a[0].imag();
return out;
}
// Real float
inline float operator()(float *a){
return 0;
inline u128f operator()(float *a){
u128f out;
out.f[0] = a[0];
out.f[1] = a[1];
out.f[2] = a[2];
out.f[3] = a[3];
return out;
}
// Real double
inline double operator()(double *a){
return 0;
inline u128d operator()(double *a){
u128d out;
out.f[0] = a[0];
out.f[1] = a[1];
return out;
}
// Integer
inline int operator()(Integer *a){
return 0;
return a[0];
}
@ -146,129 +178,198 @@ namespace Optimization {
/////////////////////////////////////////////////////
struct Sum{
//Complex/Real float
inline float operator()(float a, float b){
return 0;
inline u128f operator()(u128f a, u128f b){
u128f out;
out.f[0] = a.f[0] + b.f[0];
out.f[1] = a.f[1] + b.f[1];
out.f[2] = a.f[2] + b.f[2];
out.f[3] = a.f[3] + b.f[3];
return out;
}
//Complex/Real double
inline double operator()(double a, double b){
return 0;
inline u128d operator()(u128d a, u128d b){
u128d out;
out.f[0] = a.f[0] + b.f[0];
out.f[1] = a.f[1] + b.f[1];
return out;
}
//Integer
inline int operator()(int a, int b){
return 0;
return a + b;
}
};
struct Sub{
//Complex/Real float
inline float operator()(float a, float b){
return 0;
inline u128f operator()(u128f a, u128f b){
u128f out;
out.f[0] = a.f[0] - b.f[0];
out.f[1] = a.f[1] - b.f[1];
out.f[2] = a.f[2] - b.f[2];
out.f[3] = a.f[3] - b.f[3];
return out;
}
//Complex/Real double
inline double operator()(double a, double b){
return 0;
inline u128d operator()(u128d a, u128d b){
u128d out;
out.f[0] = a.f[0] - b.f[0];
out.f[1] = a.f[1] - b.f[1];
return out;
}
//Integer
inline int operator()(int a, int b){
return 0;
return a-b;
}
};
struct MultComplex{
// Complex float
inline float operator()(float a, float b){
return 0;
inline u128f operator()(u128f a, u128f b){
u128f out;
out.f[0] = a.f[0]*b.f[0] - a.f[1]*b.f[1];
out.f[1] = a.f[0]*b.f[1] + a.f[1]*b.f[0];
out.f[2] = a.f[2]*b.f[2] - a.f[3]*b.f[3];
out.f[3] = a.f[2]*b.f[3] + a.f[3]*b.f[2];
return out;
}
// Complex double
inline double operator()(double a, double b){
return 0;
inline u128d operator()(u128d a, u128d b){
u128d out;
out.f[0] = a.f[0]*b.f[0] - a.f[1]*b.f[1];
out.f[1] = a.f[0]*b.f[1] + a.f[1]*b.f[0];
return out;
}
};
struct Mult{
inline float mac(float a, float b,double c){
return 0;
}
inline double mac(double a, double b,double c){
return 0;
}
//CK: Appear unneeded
// inline float mac(float a, float b,double c){
// return 0;
// }
// inline double mac(double a, double b,double c){
// return 0;
// }
// Real float
inline float operator()(float a, float b){
return 0;
inline u128f operator()(u128f a, u128f b){
u128f out;
out.f[0] = a.f[0]*b.f[0];
out.f[1] = a.f[1]*b.f[1];
out.f[2] = a.f[2]*b.f[2];
out.f[3] = a.f[3]*b.f[3];
return out;
}
// Real double
inline double operator()(double a, double b){
return 0;
inline u128d operator()(u128d a, u128d b){
u128d out;
out.f[0] = a.f[0]*b.f[0];
out.f[1] = a.f[1]*b.f[1];
return out;
}
// Integer
inline int operator()(int a, int b){
return 0;
return a*b;
}
};
struct Conj{
// Complex single
inline float operator()(float in){
return 0;
inline u128f operator()(u128f in){
u128f out;
out.f[0] = in.f[0];
out.f[1] = -in.f[1];
out.f[2] = in.f[2];
out.f[3] = -in.f[3];
return out;
}
// Complex double
inline double operator()(double in){
return 0;
inline u128d operator()(u128d in){
u128d out;
out.f[0] = in.f[0];
out.f[1] = -in.f[1];
return out;
}
// do not define for integer input
};
struct TimesMinusI{
//Complex single
inline float operator()(float in, float ret){
return 0;
inline u128f operator()(u128f in, u128f ret){ //note ret is ignored
u128f out;
out.f[0] = in.f[1];
out.f[1] = -in.f[0];
out.f[2] = in.f[3];
out.f[3] = -in.f[2];
return out;
}
//Complex double
inline double operator()(double in, double ret){
return 0;
inline u128d operator()(u128d in, u128d ret){
u128d out;
out.f[0] = in.f[1];
out.f[1] = -in.f[0];
return out;
}
};
struct TimesI{
//Complex single
inline float operator()(float in, float ret){
return 0;
inline u128f operator()(u128f in, u128f ret){ //note ret is ignored
u128f out;
out.f[0] = -in.f[1];
out.f[1] = in.f[0];
out.f[2] = -in.f[3];
out.f[3] = in.f[2];
return out;
}
//Complex double
inline double operator()(double in, double ret){
return 0;
inline u128d operator()(u128d in, u128d ret){
u128d out;
out.f[0] = -in.f[1];
out.f[1] = in.f[0];
return out;
}
};
//////////////////////////////////////////////
// Some Template specialization
struct Permute{
static inline float Permute0(float in){
//We just have to mirror the permutes of Grid_sse4.h
static inline u128f Permute0(u128f in){ //AB CD -> CD AB
u128f out;
out.f[0] = in.f[2];
out.f[1] = in.f[3];
out.f[2] = in.f[0];
out.f[3] = in.f[1];
return out;
};
static inline u128f Permute1(u128f in){ //AB CD -> BA DC
u128f out;
out.f[0] = in.f[1];
out.f[1] = in.f[0];
out.f[2] = in.f[3];
out.f[3] = in.f[2];
return out;
};
static inline u128f Permute2(u128f in){
return in;
};
static inline float Permute1(float in){
return in;
};
static inline float Permute2(float in){
return in;
};
static inline float Permute3(float in){
static inline u128f Permute3(u128f in){
return in;
};
static inline double Permute0(double in){
static inline u128d Permute0(u128d in){ //AB -> BA
u128d out;
out.f[0] = in.f[1];
out.f[1] = in.f[0];
return out;
};
static inline u128d Permute1(u128d in){
return in;
};
static inline double Permute1(double in){
static inline u128d Permute2(u128d in){
return in;
};
static inline double Permute2(double in){
return in;
};
static inline double Permute3(double in){
static inline u128d Permute3(u128d in){
return in;
};
@ -280,26 +381,26 @@ namespace Optimization {
//Complex float Reduce
template<>
inline Grid::ComplexF Reduce<Grid::ComplexF, float>::operator()(float in){
return 0;
inline Grid::ComplexF Reduce<Grid::ComplexF, u128f>::operator()(u128f in){ //2 complex
return Grid::ComplexF(in.f[0] + in.f[2], in.f[1] + in.f[3]);
}
//Real float Reduce
template<>
inline Grid::RealF Reduce<Grid::RealF, float>::operator()(float in){
return 0;
inline Grid::RealF Reduce<Grid::RealF, u128f>::operator()(u128f in){ //4 floats
return in.f[0] + in.f[1] + in.f[2] + in.f[3];
}
//Complex double Reduce
template<>
inline Grid::ComplexD Reduce<Grid::ComplexD, double>::operator()(double in){
return 0;
inline Grid::ComplexD Reduce<Grid::ComplexD, u128d>::operator()(u128d in){ //1 complex
return Grid::ComplexD(in.f[0],in.f[1]);
}
//Real double Reduce
template<>
inline Grid::RealD Reduce<Grid::RealD, double>::operator()(double in){
return 0;
inline Grid::RealD Reduce<Grid::RealD, u128d>::operator()(u128d in){ //2 doubles
return in.f[0] + in.f[1];
}
//Integer Reduce
@ -314,8 +415,8 @@ namespace Optimization {
//////////////////////////////////////////////////////////////////////////////////////
// Here assign types
typedef float SIMD_Ftype; // Single precision type
typedef double SIMD_Dtype; // Double precision type
typedef Optimization::u128f SIMD_Ftype; // Single precision type
typedef Optimization::u128d SIMD_Dtype; // Double precision type
typedef int SIMD_Itype; // Integer type
// prefetch utilities

6
lib/simd/Grid_sse4.h
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@ -267,10 +267,10 @@ namespace Optimization {
struct Permute{
static inline __m128 Permute0(__m128 in){
return _mm_shuffle_ps(in,in,_MM_SELECT_FOUR_FOUR(1,0,3,2));
return _mm_shuffle_ps(in,in,_MM_SELECT_FOUR_FOUR(1,0,3,2)); //AB CD -> CD AB
};
static inline __m128 Permute1(__m128 in){
return _mm_shuffle_ps(in,in,_MM_SELECT_FOUR_FOUR(2,3,0,1));
return _mm_shuffle_ps(in,in,_MM_SELECT_FOUR_FOUR(2,3,0,1)); //AB CD -> BA DC
};
static inline __m128 Permute2(__m128 in){
return in;
@ -279,7 +279,7 @@ namespace Optimization {
return in;
};
static inline __m128d Permute0(__m128d in){
static inline __m128d Permute0(__m128d in){ //AB -> BA
return _mm_shuffle_pd(in,in,0x1);
};
static inline __m128d Permute1(__m128d in){