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Completed implementation of new Grid_simd classes

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Tested performance for SSE4, Ok.
AVX1/2, AVX512 yet untested
This commit is contained in:
neo 2015-05-22 17:33:15 +09:00
parent f8d8958884
commit 57feda4328
16 changed files with 1091 additions and 82 deletions
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4
configure.ac
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@ -3,9 +3,9 @@
#
# Project Grid package
#
# Time-stamp: <2015-05-19 13:51:08 neo>
# Time-stamp: <2015-05-22 15:46:09 neo>
AC_PREREQ([2.69])
AC_PREREQ([2.63])
AC_INIT([Grid], [1.0], [paboyle@ph.ed.ac.uk])
AC_CANONICAL_SYSTEM
AM_INIT_AUTOMAKE(subdir-objects)

6
lib/Grid_simd.h
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@ -203,11 +203,7 @@ inline void Gpermute(vsimd &y,const vsimd &b,int perm){
};
};
#include <simd/Grid_vInteger.h>
#include <simd/Grid_vRealF.h>
#include <simd/Grid_vRealD.h>
#include <simd/Grid_vComplexF.h>
#include <simd/Grid_vComplexD.h>
#include <simd/Grid_vector_types.h>
namespace Grid {

10
lib/Makefile.am
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@ -91,12 +91,10 @@ nobase_include_HEADERS = algorithms/approx/bigfloat.h \
qcd/Grid_qcd_2spinor.h \
qcd/Grid_qcd_dirac.h \
qcd/Grid_qcd_wilson_dop.h \
simd/Grid_vComplexD.h \
simd/Grid_vComplexF.h \
simd/Grid_vInteger.h \
simd/Grid_vRealD.h \
simd/Grid_vRealF.h \
simd/Grid_vector_types.h \
simd/Grid_sse4.h
simd/Grid_sse4.h \
simd/Grid_avx.h \
simd/Grid_knc.h

3
lib/cshift/Grid_cshift_common.h
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@ -154,7 +154,6 @@ template<class vobj> void Copy_plane(Lattice<vobj>& lhs,Lattice<vobj> &rhs, int
cbmask=0x3;
}
int ro = rplane*rhs._grid->_ostride[dimension]; // base offset for start of plane
int lo = lplane*lhs._grid->_ostride[dimension]; // base offset for start of plane
@ -170,10 +169,12 @@ PARALLEL_NESTED_LOOP2
}
}
}
template<class vobj> void Copy_plane_permute(Lattice<vobj>& lhs,Lattice<vobj> &rhs, int dimension,int lplane,int rplane,int cbmask,int permute_type)
{
int rd = rhs._grid->_rdimensions[dimension];
if ( !rhs._grid->CheckerBoarded(dimension) ) {

401
lib/simd/Grid_avx.h Normal file
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@ -0,0 +1,401 @@
//----------------------------------------------------------------------
/*! @file Grid_avx.h
@brief Optimization libraries for AVX1/2 instructions set
Using intrinsics
*/
// Time-stamp: <2015-05-22 15:51:24 neo>
//----------------------------------------------------------------------
#include <immintrin.h>
// _mm256_set_m128i(hi,lo); // not defined in all versions of immintrin.h
#ifndef _mm256_set_m128i
#define _mm256_set_m128i(hi,lo) _mm256_insertf128_si256(_mm256_castsi128_si256(lo),(hi),1)
#endif
namespace Optimization {
struct Vsplat{
//Complex float
inline __m256 operator()(float a, float b){
return _mm256_set_ps(b,a,b,a,b,a,b,a);
}
// Real float
inline __m256 operator()(float a){
return _mm256_set_ps(a,a,a,a,a,a,a,a);
}
//Complex double
inline __m256d operator()(double a, double b){
return _mm256_set_pd(b,a,b,a);
}
//Real double
inline __m256d operator()(double a){
return _mm256_set_pd(a,a,a,a);
}
//Integer
inline __m256i operator()(Integer a){
return _mm256_set1_epi32(a);
}
};
struct Vstore{
//Float
inline void operator()(__m256 a, float* F){
_mm256_store_ps(F,a);
}
//Double
inline void operator()(__m256d a, double* D){
_mm256_store_pd(D,a);
}
//Integer
inline void operator()(__m256i a, Integer* I){
_mm256_store_si256((__m256i*)I,a);
}
};
struct Vstream{
//Float
inline void operator()(float * a, __m256 b){
_mm256_stream_ps(a,b);
}
//Double
inline void operator()(double * a, __m256d b){
_mm256_stream_pd(a,b);
}
};
struct Vset{
// Complex float
inline __m256 operator()(Grid::ComplexF *a){
return _mm256_set_ps(a[3].imag(),a[3].real(),a[2].imag(),a[2].real(),a[1].imag(),a[1].real(),a[0].imag(),a[0].real());
}
// Complex double
inline __m256d operator()(Grid::ComplexD *a){
return _mm256_set_pd(a[1].imag(),a[1].real(),a[0].imag(),a[0].real());
}
// Real float
inline __m256 operator()(float *a){
return _mm256_set_ps(a[7],a[6],a[5],a[4],a[3],a[2],a[1],a[0]);
}
// Real double
inline __m256d operator()(double *a){
return _mm256_set_pd(a[3],a[2],a[1],a[0]);
}
// Integer
inline __m256i operator()(Integer *a){
return _mm256_set_epi32(a[7],a[6],a[5],a[4],a[3],a[2],a[1],a[0]);
}
};
template <typename Out_type, typename In_type>
struct Reduce{
//Need templated class to overload output type
//General form must generate error if compiled
inline Out_type operator()(In_type in){
printf("Error, using wrong Reduce function\n");
exit(1);
return 0;
}
};
/////////////////////////////////////////////////////
// Arithmetic operations
/////////////////////////////////////////////////////
struct Sum{
//Complex/Real float
inline __m256 operator()(__m256 a, __m256 b){
return _mm256_add_ps(a,b);
}
//Complex/Real double
inline __m256d operator()(__m256d a, __m256d b){
return _mm256_add_pd(a,b);
}
//Integer
inline __m256i operator()(__m256i a, __m256i b){
#if defined (AVX1)
__m128i a0,a1;
__m128i b0,b1;
a0 = _mm256_extractf128_si256(a,0);
b0 = _mm256_extractf128_si256(b,0);
a1 = _mm256_extractf128_si256(a,1);
b1 = _mm256_extractf128_si256(b,1);
a0 = _mm_add_epi32(a0,b0);
a1 = _mm_add_epi32(a1,b1);
return _mm256_set_m128i(a1,a0);
#endif
#if defined (AVX2)
return _mm256_add_epi32(a,b);
#endif
}
};
struct Sub{
//Complex/Real float
inline __m256 operator()(__m256 a, __m256 b){
return _mm256_sub_ps(a,b);
}
//Complex/Real double
inline __m256d operator()(__m256d a, __m256d b){
return _mm256_sub_pd(a,b);
}
//Integer
inline __m256i operator()(__m256i a, __m256i b){
#if defined (AVX1)
__m128i a0,a1;
__m128i b0,b1;
a0 = _mm256_extractf128_si256(a,0);
b0 = _mm256_extractf128_si256(b,0);
a1 = _mm256_extractf128_si256(a,1);
b1 = _mm256_extractf128_si256(b,1);
a0 = _mm_sub_epi32(a0,b0);
a1 = _mm_sub_epi32(a1,b1);
return _mm256_set_m128i(a1,a0);
#endif
#if defined (AVX2)
return _mm256_sub_epi32(a,b);
#endif
}
};
struct MultComplex{
// Complex float
inline __m256 operator()(__m256 a, __m256 b){
__m256 ymm0,ymm1,ymm2;
ymm0 = _mm256_shuffle_ps(a,a,_MM_SHUFFLE(2,2,0,0)); // ymm0 <- ar ar,
ymm0 = _mm256_mul_ps(ymm0,b); // ymm0 <- ar bi, ar br
// FIXME AVX2 could MAC
ymm1 = _mm256_shuffle_ps(b,b,_MM_SHUFFLE(2,3,0,1)); // ymm1 <- br,bi
ymm2 = _mm256_shuffle_ps(a,a,_MM_SHUFFLE(3,3,1,1)); // ymm2 <- ai,ai
ymm1 = _mm256_mul_ps(ymm1,ymm2); // ymm1 <- br ai, ai bi
return _mm256_addsub_ps(ymm0,ymm1);
}
// Complex double
inline __m256d operator()(__m256d a, __m256d b){
//Multiplication of (ak+ibk)*(ck+idk)
// a + i b can be stored as a data structure
//From intel optimisation reference guide
/*
movsldup xmm0, Src1; load real parts into the destination,
; a1, a1, a0, a0
movaps xmm1, src2; load the 2nd pair of complex values, ; i.e. d1, c1, d0, c0
mulps xmm0, xmm1; temporary results, a1d1, a1c1, a0d0, ; a0c0
shufps xmm1, xmm1, b1; reorder the real and imaginary ; parts, c1, d1, c0, d0
movshdup xmm2, Src1; load the imaginary parts into the ; destination, b1, b1, b0, b0
mulps xmm2, xmm1; temporary results, b1c1, b1d1, b0c0, ; b0d0
addsubps xmm0, xmm2; b1c1+a1d1, a1c1 -b1d1, b0c0+a0d
VSHUFPD (VEX.256 encoded version)
IF IMM0[0] = 0
THEN DEST[63:0]=SRC1[63:0] ELSE DEST[63:0]=SRC1[127:64] FI;
IF IMM0[1] = 0
THEN DEST[127:64]=SRC2[63:0] ELSE DEST[127:64]=SRC2[127:64] FI;
IF IMM0[2] = 0
THEN DEST[191:128]=SRC1[191:128] ELSE DEST[191:128]=SRC1[255:192] FI;
IF IMM0[3] = 0
THEN DEST[255:192]=SRC2[191:128] ELSE DEST[255:192]=SRC2[255:192] FI; // Ox5 r<->i ; 0xC unchanged
*/
__m256d ymm0,ymm1,ymm2;
ymm0 = _mm256_shuffle_pd(a,a,0x0); // ymm0 <- ar ar, ar,ar b'00,00
ymm0 = _mm256_mul_pd(ymm0,b); // ymm0 <- ar bi, ar br
ymm1 = _mm256_shuffle_pd(b,b,0x5); // ymm1 <- br,bi b'01,01
ymm2 = _mm256_shuffle_pd(a,a,0xF); // ymm2 <- ai,ai b'11,11
ymm1 = _mm256_mul_pd(ymm1,ymm2); // ymm1 <- br ai, ai bi
return _mm256_addsub_pd(ymm0,ymm1);
}
};
struct Mult{
// Real float
inline __m256 operator()(__m256 a, __m256 b){
return _mm256_mul_ps(a,b);
}
// Real double
inline __m256d operator()(__m256d a, __m256d b){
return _mm256_mul_pd(a,b);
}
// Integer
inline __m256i operator()(__m256i a, __m256i b){
#if defined (AVX1)
__m128i a0,a1;
__m128i b0,b1;
a0 = _mm256_extractf128_si256(a,0);
b0 = _mm256_extractf128_si256(b,0);
a1 = _mm256_extractf128_si256(a,1);
b1 = _mm256_extractf128_si256(b,1);
a0 = _mm_mul_epi32(a0,b0);
a1 = _mm_mul_epi32(a1,b1);
return _mm256_set_m128i(a1,a0);
#endif
#if defined (AVX2)
return _mm256_mul_epi32(a,b);
#endif
}
};
struct Conj{
// Complex single
inline __m256 operator()(__m256 in){
return _mm256_xor_ps(_mm256_addsub_ps(_mm256_setzero_ps(),in), _mm256_set1_ps(-0.f));
}
// Complex double
inline __m256d operator()(__m256d in){
return _mm256_xor_pd(_mm256_addsub_pd(_mm256_setzero_pd(),in), _mm256_set1_pd(-0.f));//untested
/*
// original
// addsubps 0, inv=>0+in.v[3] 0-in.v[2], 0+in.v[1], 0-in.v[0], ...
__m256d tmp = _mm256_addsub_pd(_mm256_setzero_pd(),_mm256_shuffle_pd(in,in,0x5));
return _mm256_shuffle_pd(tmp,tmp,0x5);
*/
}
// do not define for integer input
};
struct TimesMinusI{
//Complex single
inline __m256 operator()(__m256 in, __m256 ret){
__m256 tmp =_mm256_addsub_ps(_mm256_setzero_ps(),in); // r,-i
return _mm256_shuffle_ps(tmp,tmp,_MM_SHUFFLE(2,3,0,1)); //-i,r
}
//Complex double
inline __m256d operator()(__m256d in, __m256d ret){
__m256d tmp = _mm256_addsub_pd(_mm256_setzero_pd(),in); // r,-i
return _mm256_shuffle_pd(tmp,tmp,0x5);
}
};
struct TimesI{
//Complex single
inline __m256 operator()(__m256 in, __m256 ret){
__m256 tmp =_mm256_shuffle_ps(in,in,_MM_SHUFFLE(2,3,0,1)); // i,r
return _mm256_addsub_ps(_mm256_setzero_ps(),tmp); // i,-r
}
//Complex double
inline __m256d operator()(__m256d in, __m256d ret){
__m256d tmp = _mm256_shuffle_pd(in,in,0x5);
return _mm256_addsub_pd(_mm256_setzero_pd(),tmp); // i,-r
}
};
//////////////////////////////////////////////
// Some Template specialization
template < typename vtype >
void permute(vtype a, vtype b, int perm) {
union {
__m256 f;
vtype v;
} conv;
conv.v = b;
switch (perm){
// 8x32 bits=>3 permutes
case 2:
conv.f = _mm256_shuffle_ps(conv.f,conv.f,_MM_SHUFFLE(2,3,0,1));
break;
case 1: conv.f = _mm256_shuffle_ps(conv.f,conv.f,_MM_SHUFFLE(1,0,3,2)); break;
case 0: conv.f = _mm256_permute2f128_ps(conv.f,conv.f,0x01); break;
default: assert(0); break;
}
a = conv.v;
}
//Complex float Reduce
template<>
inline Grid::ComplexF Reduce<Grid::ComplexF, __m256>::operator()(__m256 in){
__m256 v1,v2;
Optimization::permute(v1,in,0); // sse 128; paired complex single
v1 = _mm256_add_ps(v1,in);
Optimization::permute(v2,v1,1); // avx 256; quad complex single
v1 = _mm256_add_ps(v1,v2);
return Grid::ComplexF(v1[0],v1[1]);
}
//Real float Reduce
template<>
inline Grid::RealF Reduce<Grid::RealF, __m256>::operator()(__m256 in){
__m256 v1,v2;
Optimization::permute(v1,in,0); // avx 256; octo-double
v1 = _mm256_add_ps(v1,in);
Optimization::permute(v2,v1,1);
v1 = _mm256_add_ps(v1,v2);
Optimization::permute(v2,v1,2);
v1 = _mm256_add_ps(v1,v2);
return v1[0];
}
//Complex double Reduce
template<>
inline Grid::ComplexD Reduce<Grid::ComplexD, __m256d>::operator()(__m256d in){
__m256d v1;
Optimization::permute(v1,in,0); // sse 128; paired complex single
v1 = _mm256_add_pd(v1,in);
return Grid::ComplexD(v1[0],v1[1]);
}
//Real double Reduce
template<>
inline Grid::RealD Reduce<Grid::RealD, __m256d>::operator()(__m256d in){
__m256d v1,v2;
Optimization::permute(v1,in,0); // avx 256; quad double
v1 = _mm256_add_pd(v1,in);
Optimization::permute(v2,v1,1);
v1 = _mm256_add_pd(v1,v2);
return v1[0];
}
//Integer Reduce
template<>
inline Integer Reduce<Integer, __m256i>::operator()(__m256i in){
// FIXME unimplemented
printf("Reduce : Missing integer implementation -> FIX\n");
assert(0);
}
}
//////////////////////////////////////////////////////////////////////////////////////
// Here assign types
namespace Grid {
typedef __m256 SIMD_Ftype; // Single precision type
typedef __m256d SIMD_Dtype; // Double precision type
typedef __m256i SIMD_Itype; // Integer type
// Function name aliases
typedef Optimization::Vsplat VsplatSIMD;
typedef Optimization::Vstore VstoreSIMD;
typedef Optimization::Vset VsetSIMD;
typedef Optimization::Vstream VstreamSIMD;
template <typename S, typename T> using ReduceSIMD = Optimization::Reduce<S,T>;
// Arithmetic operations
typedef Optimization::Sum SumSIMD;
typedef Optimization::Sub SubSIMD;
typedef Optimization::Mult MultSIMD;
typedef Optimization::MultComplex MultComplexSIMD;
typedef Optimization::Conj ConjSIMD;
typedef Optimization::TimesMinusI TimesMinusISIMD;
typedef Optimization::TimesI TimesISIMD;
}

323
lib/simd/Grid_knc.h Normal file
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@ -0,0 +1,323 @@
//----------------------------------------------------------------------
/*! @file Grid_knc.h
@brief Optimization libraries for AVX512 instructions set for KNC
Using intrinsics
*/
// Time-stamp: <2015-05-22 17:12:44 neo>
//----------------------------------------------------------------------
#include <immintrin.h>
#ifndef KNC_ONLY_STORES
#define _mm512_storenrngo_ps _mm512_store_ps // not present in AVX512
#define _mm512_storenrngo_pd _mm512_store_pd // not present in AVX512
#endif
namespace Optimization {
struct Vsplat{
//Complex float
inline __m512 operator()(float a, float b){
return _mm512_set_ps(b,a,b,a,b,a,b,a,b,a,b,a,b,a,b,a);
}
// Real float
inline __m512 operator()(float a){
return _mm512_set1_ps(a);
}
//Complex double
inline __m512d operator()(double a, double b){
return _mm512_set_pd(b,a,b,a,b,a,b,a);
}
//Real double
inline __m512d operator()(double a){
return _mm512_set1_pd(a);
}
//Integer
inline __m512i operator()(Integer a){
return _mm512_set1_epi32(a);
}
};
struct Vstore{
//Float
inline void operator()(__m512 a, float* F){
_mm512_store_ps(F,a);
}
//Double
inline void operator()(__m512d a, double* D){
_mm512_store_pd(D,a);
}
//Integer
inline void operator()(__m512i a, Integer* I){
_mm512_store_si512((__m512i *)I,a);
}
};
struct Vstream{
//Float
inline void operator()(float * a, __m512 b){
_mm512_storenrngo_ps(a,b);
}
//Double
inline void operator()(double * a, __m512d b){
_mm512_storenrngo_pd(a,b);
}
};
struct Vset{
// Complex float
inline __m512 operator()(Grid::ComplexF *a){
return _mm512_set_ps(a[7].imag(),a[7].real(),a[6].imag(),a[6].real(),
a[5].imag(),a[5].real(),a[4].imag(),a[4].real(),
a[3].imag(),a[3].real(),a[2].imag(),a[2].real(),
a[1].imag(),a[1].real(),a[0].imag(),a[0].real());
}
// Complex double
inline __m512d operator()(Grid::ComplexD *a){
return _mm512_set_pd(a[3].imag(),a[3].real(),a[2].imag(),a[2].real(),
a[1].imag(),a[1].real(),a[0].imag(),a[0].real());
}
// Real float
inline __m512 operator()(float *a){
return _mm512_set_ps( a[15],a[14],a[13],a[12],a[11],a[10],a[9],a[8],
a[7],a[6],a[5],a[4],a[3],a[2],a[1],a[0]);
}
// Real double
inline __m512d operator()(double *a){
return _mm512_set_pd(a[7],a[6],a[5],a[4],a[3],a[2],a[1],a[0]);
}
// Integer
inline __m512i operator()(Integer *a){
return _mm512_set_epi32( a[15],a[14],a[13],a[12],a[11],a[10],a[9],a[8],
a[7],a[6],a[5],a[4],a[3],a[2],a[1],a[0]);
}
};
template <typename Out_type, typename In_type>
struct Reduce{
//Need templated class to overload output type
//General form must generate error if compiled
inline Out_type operator()(In_type in){
printf("Error, using wrong Reduce function\n");
exit(1);
return 0;
}
};
/////////////////////////////////////////////////////
// Arithmetic operations
/////////////////////////////////////////////////////
struct Sum{
//Complex/Real float
inline __m512 operator()(__m512 a, __m512 b){
return _mm512_add_ps(a,b);
}
//Complex/Real double
inline __m512d operator()(__m512d a, __m512d b){
return _mm512_add_pd(a,b);
}
//Integer
inline __m512i operator()(__m512i a, __m512i b){
return _mm512_add_epi32(a,b);
}
};
struct Sub{
//Complex/Real float
inline __m512 operator()(__m512 a, __m512 b){
return _mm512_sub_ps(a,b);
}
//Complex/Real double
inline __m512d operator()(__m512d a, __m512d b){
return _mm512_sub_pd(a,b);
}
//Integer
inline __m512i operator()(__m512i a, __m512i b){
return _mm512_sub_epi32(a,b);
}
};
struct MultComplex{
// Complex float
inline __m512 operator()(__m512 a, __m512 b){
__m512 vzero,ymm0,ymm1,real, imag;
vzero = _mm512_setzero_ps();
ymm0 = _mm512_swizzle_ps(a, _MM_SWIZ_REG_CDAB); //
real = (__m512)_mm512_mask_or_epi32((__m512i)a, 0xAAAA,(__m512i)vzero,(__m512i)ymm0);
imag = _mm512_mask_sub_ps(a, 0x5555,vzero, ymm0);
ymm1 = _mm512_mul_ps(real, b);
ymm0 = _mm512_swizzle_ps(b, _MM_SWIZ_REG_CDAB); // OK
return _mm512_fmadd_ps(ymm0,imag,ymm1);
}
// Complex double
inline __m512d operator()(__m512d a, __m512d b){
/* This is from
* Automatic SIMD Vectorization of Fast Fourier Transforms for the Larrabee and AVX Instruction Sets
* @inproceedings{McFarlin:2011:ASV:1995896.1995938,
* author = {McFarlin, Daniel S. and Arbatov, Volodymyr and Franchetti, Franz and P\"{u}schel, Markus},
* title = {Automatic SIMD Vectorization of Fast Fourier Transforms for the Larrabee and AVX Instruction Sets},
* booktitle = {Proceedings of the International Conference on Supercomputing},
* series = {ICS '11},
* year = {2011},
* isbn = {978-1-4503-0102-2},
* location = {Tucson, Arizona, USA},
* pages = {265--274},
* numpages = {10},
* url = {http://doi.acm.org/10.1145/1995896.1995938},
* doi = {10.1145/1995896.1995938},
* acmid = {1995938},
* publisher = {ACM},
* address = {New York, NY, USA},
* keywords = {autovectorization, fourier transform, program generation, simd, super-optimization},
* }
*/
__m512d vzero,ymm0,ymm1,real,imag;
vzero =_mm512_setzero_pd();
ymm0 = _mm512_swizzle_pd(a, _MM_SWIZ_REG_CDAB); //
real =(__m512d)_mm512_mask_or_epi64((__m512i)a, 0xAA,(__m512i)vzero,(__m512i) ymm0);
imag = _mm512_mask_sub_pd(a, 0x55,vzero, ymm0);
ymm1 = _mm512_mul_pd(real, b);
ymm0 = _mm512_swizzle_pd(b, _MM_SWIZ_REG_CDAB); // OK
return _mm512_fmadd_pd(ymm0,imag,ymm1);
}
};
struct Mult{
// Real float
inline __m512 operator()(__m512 a, __m512 b){
return _mm512_mul_ps(a,b);
}
// Real double
inline __m512d operator()(__m512d a, __m512d b){
return _mm512_mul_pd(a,b);
}
// Integer
inline __m512i operator()(__m512i a, __m512i b){
return _mm512_mullo_epi32(a,b);
}
};
struct Conj{
// Complex single
inline __m512 operator()(__m512 in){
return _mm512_mask_sub_ps(in,0xaaaa,_mm512_setzero_ps(),in); // Zero out 0+real 0-imag
}
// Complex double
inline __m512d operator()(__m512d in){
return _mm512_mask_sub_pd(in, 0xaa,_mm512_setzero_pd(), in);
}
// do not define for integer input
};
struct TimesMinusI{
//Complex single
inline __m512 operator()(__m512 in, __m512 ret){
__m512 tmp = _mm512_mask_sub_ps(in,0xaaaa,_mm512_setzero_ps(),in); // real -imag
return _mm512_swizzle_ps(tmp, _MM_SWIZ_REG_CDAB);// OK
}
//Complex double
inline __m512d operator()(__m512d in, __m512d ret){
__m512d tmp = _mm512_mask_sub_pd(in,0xaa,_mm512_setzero_pd(),in); // real -imag
return _mm512_swizzle_pd(tmp, _MM_SWIZ_REG_CDAB);// OK
}
};
struct TimesI{
//Complex single
inline __m512 operator()(__m512 in, __m512 ret){
__m512 tmp = _mm512_swizzle_ps(in, _MM_SWIZ_REG_CDAB);// OK
return _mm512_mask_sub_ps(tmp,0xaaaa,_mm512_setzero_ps(),tmp); // real -imag
}
//Complex double
inline __m512d operator()(__m512d in, __m512d ret){
__m512d tmp = _mm512_swizzle_pd(in, _MM_SWIZ_REG_CDAB);// OK
return _mm512_mask_sub_pd(tmp,0xaa,_mm512_setzero_pd(),tmp); // real -imag
}
};
//////////////////////////////////////////////
// Some Template specialization
//Complex float Reduce
template<>
inline Grid::ComplexF Reduce<Grid::ComplexF, __m512>::operator()(__m512 in){
return Grid::ComplexF(_mm512_mask_reduce_add_ps(0x5555, in),_mm512_mask_reduce_add_ps(0xAAAA, in));
}
//Real float Reduce
template<>
inline Grid::RealF Reduce<Grid::RealF, __m512>::operator()(__m512 in){
return _mm512_reduce_add_ps(in);
}
//Complex double Reduce
template<>
inline Grid::ComplexD Reduce<Grid::ComplexD, __m512d>::operator()(__m512d in){
return Grid::ComplexD(_mm512_mask_reduce_add_pd(0x55, in),_mm512_mask_reduce_add_pd(0xAA, in));
}
//Real double Reduce
template<>
inline Grid::RealD Reduce<Grid::RealD, __m512d>::operator()(__m512d in){
return _mm512_reduce_add_pd(in);
}
//Integer Reduce
template<>
inline Integer Reduce<Integer, __m512i>::operator()(__m512i in){
// FIXME unimplemented
printf("Reduce : Missing integer implementation -> FIX\n");
assert(0);
}
}
//////////////////////////////////////////////////////////////////////////////////////
// Here assign types
namespace Grid {
typedef __m512 SIMD_Ftype; // Single precision type
typedef __m512d SIMD_Dtype; // Double precision type
typedef __m512i SIMD_Itype; // Integer type
// Function name aliases
typedef Optimization::Vsplat VsplatSIMD;
typedef Optimization::Vstore VstoreSIMD;
typedef Optimization::Vset VsetSIMD;
typedef Optimization::Vstream VstreamSIMD;
template <typename S, typename T> using ReduceSIMD = Optimization::Reduce<S,T>;
// Arithmetic operations
typedef Optimization::Sum SumSIMD;
typedef Optimization::Sub SubSIMD;
typedef Optimization::Mult MultSIMD;
typedef Optimization::MultComplex MultComplexSIMD;
typedef Optimization::Conj ConjSIMD;
typedef Optimization::TimesMinusI TimesMinusISIMD;
typedef Optimization::TimesI TimesISIMD;
}

272
lib/simd/Grid_qpx.h Normal file
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@ -0,0 +1,272 @@
//----------------------------------------------------------------------
/*! @file Grid_qpx.h
@brief Optimization libraries for QPX instructions set for BG/Q
Using intrinsics
*/
// Time-stamp: <2015-05-22 17:29:26 neo>
//----------------------------------------------------------------------
// lot of undefined functions
namespace Optimization {
struct Vsplat{
//Complex float
inline float operator()(float a, float b){
return {a,b,a,b};
}
// Real float
inline float operator()(float a){
return {a,a,a,a};
}
//Complex double
inline vector4double operator()(double a, double b){
return {a,b,a,b};
}
//Real double
inline vector4double operator()(double a){
return {a,a,a,a};
}
//Integer
inline int operator()(Integer a){
#error
}
};
struct Vstore{
//Float
inline void operator()(float a, float* F){
assert(0);
}
//Double
inline void operator()(vector4double a, double* D){
assert(0);
}
//Integer
inline void operator()(int a, Integer* I){
assert(0);
}
};
struct Vstream{
//Float
inline void operator()(float * a, float b){
assert(0);
}
//Double
inline void operator()(double * a, vector4double b){
assert(0);
}
};
struct Vset{
// Complex float
inline float operator()(Grid::ComplexF *a){
return {a[0].real(),a[0].imag(),a[1].real(),a[1].imag(),a[2].real(),a[2].imag(),a[3].real(),a[3].imag()};
}
// Complex double
inline vector4double operator()(Grid::ComplexD *a){
return {a[0].real(),a[0].imag(),a[1].real(),a[1].imag(),a[2].real(),a[2].imag(),a[3].real(),a[3].imag()};
}
// Real float
inline float operator()(float *a){
return {a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]};
}
// Real double
inline vector4double operator()(double *a){
return {a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]};
}
// Integer
inline int operator()(Integer *a){
#error
}
};
template <typename Out_type, typename In_type>
struct Reduce{
//Need templated class to overload output type
//General form must generate error if compiled
inline Out_type operator()(In_type in){
printf("Error, using wrong Reduce function\n");
exit(1);
return 0;
}
};
/////////////////////////////////////////////////////
// Arithmetic operations
/////////////////////////////////////////////////////
struct Sum{
//Complex/Real float
inline float operator()(float a, float b){
#error
}
//Complex/Real double
inline vector4double operator()(vector4double a, vector4double b){
return vec_add(a,b);
}
//Integer
inline int operator()(int a, int b){
#error
}
};
struct Sub{
//Complex/Real float
inline float operator()(float a, float b){
#error
}
//Complex/Real double
inline vector4double operator()(vector4double a, vector4double b){
#error
}
//Integer
inline floati operator()(int a, int b){
#error
}
};
struct MultComplex{
// Complex float
inline float operator()(float a, float b){
#error
}
// Complex double
inline vector4double operator()(vector4double a, vector4double b){
#error
}
};
struct Mult{
// Real float
inline float operator()(float a, float b){
#error
}
// Real double
inline vector4double operator()(vector4double a, vector4double b){
#error
}
// Integer
inline int operator()(int a, int b){
#error
}
};
struct Conj{
// Complex single
inline float operator()(float in){
assert(0);
}
// Complex double
inline vector4double operator()(vector4double in){
assert(0);
}
// do not define for integer input
};
struct TimesMinusI{
//Complex single
inline float operator()(float in, float ret){
assert(0);
}
//Complex double
inline vector4double operator()(vector4double in, vector4double ret){
assert(0);
}
};
struct TimesI{
//Complex single
inline float operator()(float in, float ret){
}
//Complex double
inline vector4double operator()(vector4double in, vector4double ret){
}
};
//////////////////////////////////////////////
// Some Template specialization
//Complex float Reduce
template<>
inline Grid::ComplexF Reduce<Grid::ComplexF, float>::operator()(float in){
assert(0);
}
//Real float Reduce
template<>
inline Grid::RealF Reduce<Grid::RealF, float>::operator()(float in){
assert(0);
}
//Complex double Reduce
template<>
inline Grid::ComplexD Reduce<Grid::ComplexD, vector4double>::operator()(vector4double in){
assert(0);
}
//Real double Reduce
template<>
inline Grid::RealD Reduce<Grid::RealD, vector4double>::operator()(vector4double in){
assert(0);
}
//Integer Reduce
template<>
inline Integer Reduce<Integer, floati>::operator()(float in){
assert(0);
}
}
//////////////////////////////////////////////////////////////////////////////////////
// Here assign types
namespace Grid {
typedef float SIMD_Ftype __attribute__ ((vector_size (16))); // Single precision type
typedef vector4double SIMD_Dtype; // Double precision type
typedef int SIMD_Itype; // Integer type
// Function name aliases
typedef Optimization::Vsplat VsplatSIMD;
typedef Optimization::Vstore VstoreSIMD;
typedef Optimization::Vset VsetSIMD;
typedef Optimization::Vstream VstreamSIMD;
template <typename S, typename T> using ReduceSIMD = Optimization::Reduce<S,T>;
// Arithmetic operations
typedef Optimization::Sum SumSIMD;
typedef Optimization::Sub SubSIMD;
typedef Optimization::Mult MultSIMD;
typedef Optimization::MultComplex MultComplexSIMD;
typedef Optimization::Conj ConjSIMD;
typedef Optimization::TimesMinusI TimesMinusISIMD;
typedef Optimization::TimesI TimesISIMD;
}

10
lib/simd/Grid_sse4.h
View File

@ -4,7 +4,7 @@
Using intrinsics
*/
// Time-stamp: <2015-05-20 16:45:39 neo>
// Time-stamp: <2015-05-21 18:06:30 neo>
//----------------------------------------------------------------------
#include <pmmintrin.h>
@ -53,12 +53,12 @@ namespace Optimization {
struct Vstream{
//Float
inline void operator()(__m128 a, __m128 b){
_mm_stream_ps((float *)&a,b);
inline void operator()(float * a, __m128 b){
_mm_stream_ps(a,b);
}
//Double
inline void operator()(__m128d a, __m128d b){
_mm_stream_pd((double *)&a,b);
inline void operator()(double * a, __m128d b){
_mm_stream_pd(a,b);
}

94
lib/simd/Grid_vector_types.h
View File

@ -2,12 +2,20 @@
/*! @file Grid_vector_types.h
@brief Defines templated class Grid_simd to deal with inner vector types
*/
// Time-stamp: <2015-05-20 17:31:55 neo>
// Time-stamp: <2015-05-22 17:08:19 neo>
//---------------------------------------------------------------------------
#ifndef GRID_VECTOR_TYPES
#define GRID_VECTOR_TYPES
#ifdef SSE4
#include "Grid_sse4.h"
#endif
#if defined (AVX1)|| defined (AVX2)
#include "Grid_avx.h"
#endif
#if defined AVX512
#include "Grid_knc.h"
#endif
namespace Grid {
@ -43,13 +51,14 @@ namespace Grid {
// general forms to allow for vsplat syntax
// need explicit declaration of types when used since
// clang cannot automatically determine the output type sometimes
// use decltype?
template < class Out, class Input1, class Input2, class Operation >
Out binary(Input1 src_1, Input2 src_2, Operation op){
return op(src_1, src_2);
}
template < class SIMDout, class Input, class Operation >
SIMDout unary(Input src, Operation op){
template < class Out, class Input, class Operation >
Out unary(Input src, Operation op){
return op(src);
}
@ -63,27 +72,34 @@ namespace Grid {
public:
typedef typename RealPart < Scalar_type >::type Real;
typedef Vector_type vector_type;
typedef Scalar_type scalar_type;
Vector_type v;
static inline int Nsimd(void) { return sizeof(Vector_type)/sizeof(Scalar_type);}
// Constructors
Grid_simd & operator = ( Zero & z){
vzero(*this);
return (*this);
}
Grid_simd(){};
Grid_simd& operator=(const Grid_simd&& rhs){v=rhs.v;return *this;};
Grid_simd& operator=(const Grid_simd& rhs){v=rhs.v;return *this;}; //faster than not declaring it and leaving to the compiler
Grid_simd()=default;
Grid_simd(const Grid_simd& rhs):v(rhs.v){}; //compiles in movaps
Grid_simd(const Grid_simd&& rhs):v(rhs.v){};
//Enable if complex type
template < class S = Scalar_type >
Grid_simd(typename std::enable_if< is_complex < S >::value, S>::type a){
Grid_simd(const typename std::enable_if< is_complex < S >::value, S>::type a){
vsplat(*this,a);
};
Grid_simd(Real a){
Grid_simd(const Real a){
vsplat(*this,Scalar_type(a));
};
@ -97,18 +113,13 @@ namespace Grid {
friend inline void sub (Grid_simd * __restrict__ y,const Grid_simd * __restrict__ l,const Grid_simd *__restrict__ r){ *y = (*l) - (*r); }
friend inline void add (Grid_simd * __restrict__ y,const Grid_simd * __restrict__ l,const Grid_simd *__restrict__ r){ *y = (*l) + (*r); }
//not for integer types... FIXME
//not for integer types...
template < class S = Scalar_type, NotEnableIf<std::is_integral < S >, int> = 0 >
friend inline Grid_simd adj(const Grid_simd &in){ return conjugate(in); }
///////////////////////////////////////////////
// Initialise to 1,0,i for the correct types
///////////////////////////////////////////////
// if not complex overload here
template < class S = Scalar_type, NotEnableIf<is_complex < S >,int> = 0 >
friend inline void vone(Grid_simd &ret) { vsplat(ret,1.0); }
template < class S = Scalar_type, NotEnableIf<is_complex < S >,int> = 0 >
friend inline void vzero(Grid_simd &ret) { vsplat(ret,0.0); }
// For complex types
template < class S = Scalar_type, EnableIf<is_complex < S >, int> = 0 >
friend inline void vone(Grid_simd &ret) { vsplat(ret,1.0,0.0); }
@ -116,6 +127,14 @@ namespace Grid {
friend inline void vzero(Grid_simd &ret) { vsplat(ret,0.0,0.0); }// use xor?
template < class S = Scalar_type, EnableIf<is_complex < S >, int> = 0 >
friend inline void vcomplex_i(Grid_simd &ret){ vsplat(ret,0.0,1.0);}
// if not complex overload here
template < class S = Scalar_type, EnableIf<std::is_floating_point < S >,int> = 0 >
friend inline void vone(Grid_simd &ret) { vsplat(ret,1.0); }
template < class S = Scalar_type, EnableIf<std::is_floating_point < S >,int> = 0 >
friend inline void vzero(Grid_simd &ret) { vsplat(ret,0.0); }
// For integral types
template < class S = Scalar_type, EnableIf<std::is_integral < S >, int> = 0 >
@ -125,7 +144,7 @@ namespace Grid {
template < class S = Scalar_type, EnableIf<std::is_integral < S >, int> = 0 >
friend inline void vtrue (Grid_simd &ret){vsplat(ret,0xFFFFFFFF);}
template < class S = Scalar_type, EnableIf<std::is_integral < S >, int> = 0 >
friend inline void vfalse(vInteger &ret){vsplat(ret,0);}
friend inline void vfalse(Grid_simd &ret){vsplat(ret,0);}
@ -206,8 +225,9 @@ namespace Grid {
///////////////////////
// Vstream
///////////////////////
template < class S = Scalar_type, NotEnableIf<std::is_integral < S >, int> = 0 >
friend inline void vstream(Grid_simd &out,const Grid_simd &in){
binary<void>(out.v, in.v, VstreamSIMD());
binary<void>((Real*)&out.v, in.v, VstreamSIMD());
}
template < class S = Scalar_type, EnableIf<std::is_integral < S >, int> = 0 >
@ -305,7 +325,7 @@ namespace Grid {
// Unary negation
///////////////////////
friend inline Grid_simd operator -(const Grid_simd &r) {
vComplexF ret;
Grid_simd ret;
vzero(ret);
ret = ret - r;
return ret;
@ -350,7 +370,7 @@ namespace Grid {
}
template<class scalar_type, class vector_type >
inline void zeroit(Grid_simd< scalar_type, vector_type> &z){ vzero(z);}
inline void zeroit(Grid_simd< scalar_type, vector_type> &z){ vzero(z);}
template<class scalar_type, class vector_type >
@ -368,35 +388,11 @@ namespace Grid {
// Define available types (now change names to avoid clashing with the rest of the code)
typedef Grid_simd< float , SIMD_Ftype > MyRealF;
typedef Grid_simd< double , SIMD_Dtype > MyRealD;
typedef Grid_simd< std::complex< float > , SIMD_Ftype > MyComplexF;
typedef Grid_simd< std::complex< double >, SIMD_Dtype > MyComplexD;
////////////////////////////////////////////////////////////////////
// Temporary hack to keep independent from the rest of the code
template<> struct isGridTensor<MyRealD > {
static const bool value = false;
static const bool notvalue = true;
};
template<> struct isGridTensor<MyRealF > {
static const bool value = false;
static const bool notvalue = true;
};
template<> struct isGridTensor<MyComplexD > {
static const bool value = false;
static const bool notvalue = true;
};
template<> struct isGridTensor<MyComplexF > {
static const bool value = false;
static const bool notvalue = true;
};
typedef Grid_simd< float , SIMD_Ftype > vRealF;
typedef Grid_simd< double , SIMD_Dtype > vRealD;
typedef Grid_simd< std::complex< float > , SIMD_Ftype > vComplexF;
typedef Grid_simd< std::complex< double >, SIMD_Dtype > vComplexD;
typedef Grid_simd< Integer , SIMD_Itype > vInteger;
}

0
lib/simd/Grid_vComplexD.h → lib/simd/Old/Grid_vComplexD.h
View File

2
lib/simd/Grid_vComplexF.h → lib/simd/Old/Grid_vComplexF.h
View File

@ -54,7 +54,7 @@ namespace Grid {
//////////////////////////////////
friend inline void vone(vComplexF &ret) { vsplat(ret,1.0,0.0); }
friend inline void vzero(vComplexF &ret) { vsplat(ret,0.0,0.0); }
friend inline void vcomplex_i(vComplexF &ret){ vsplat(ret,0.0,1.0);}
friend inline void vcomplex_i(vComplexF &ret){ vsplat(ret,0.0,1.0); }
////////////////////////////////////
// Arithmetic operator overloads +,-,*

0
lib/simd/Grid_vInteger.h → lib/simd/Old/Grid_vInteger.h
View File

0
lib/simd/Grid_vRealD.h → lib/simd/Old/Grid_vRealD.h
View File

0
lib/simd/Grid_vRealF.h → lib/simd/Old/Grid_vRealF.h
View File

42
tests/Grid_main.cc
View File

@ -103,6 +103,9 @@ int main (int argc, char ** argv)
random(FineRNG,scVec);
fflush(stdout);
/*
cVec = cMat * cVec; // LatticeColourVector = LatticeColourMatrix * LatticeColourVector
sVec = sMat * sVec; // LatticeSpinVector = LatticeSpinMatrix * LatticeSpinVector
scVec= scMat * scVec;// LatticeSpinColourVector = LatticeSpinColourMatrix * LatticeSpinColourVector
@ -112,12 +115,14 @@ int main (int argc, char ** argv)
cMat = outerProduct(cVec,cVec);
scalar = localInnerProduct(cVec,cVec);
scalar += scalar;
scalar -= scalar;
scalar *= scalar;
add(scalar,scalar,scalar);
sub(scalar,scalar,scalar);
mult(scalar,scalar,scalar);
mac(scalar,scalar,scalar);
scalar = scalar+scalar;
scalar = scalar-scalar;
@ -141,7 +146,7 @@ int main (int argc, char ** argv)
scalar=trace(scalar);
scalar=localInnerProduct(cVec,cVec);
scalar=localNorm2(cVec);
*/
// -=,+=,*=,()
// add,+,sub,-,mult,mac,*
// adj,conjugate
@ -153,10 +158,11 @@ int main (int argc, char ** argv)
// localNorm2
// localInnerProduct
scMat = sMat*scMat; // LatticeSpinColourMatrix = LatticeSpinMatrix * LatticeSpinColourMatrix
/*
#ifdef SSE4
///////// Tests the new class Grid_simd
std::complex<double> ctest(3.0,2.0);
@ -196,8 +202,10 @@ int main (int argc, char ** argv)
std::cout << sum<< std::endl;
#endif
*/
///////////////////////
/*
printf("DEBUG: calling 3.5 \n");
// Non-lattice (const objects) * Lattice
ColourMatrix cm;
SpinColourMatrix scm;
@ -217,6 +225,7 @@ int main (int argc, char ** argv)
vscm = vscm*cplx;
scMat = scMat*cplx;
printf("DEBUG: calling 3.7 \n");
scm = cplx*scm;
vscm = cplx*vscm;
scMat = cplx*scMat;
@ -224,12 +233,14 @@ int main (int argc, char ** argv)
vscm = myint*vscm;
scMat = scMat*myint;
printf("DEBUG: calling 3.9 \n");
scm = scm*mydouble;
vscm = vscm*mydouble;
scMat = scMat*mydouble;
scMat = mydouble*scMat;
cMat = mydouble*cMat;
printf("DEBUG: calling 4 \n");
sMat = adj(sMat); // LatticeSpinMatrix adjoint
sMat = iGammaFive*sMat; // SpinMatrix * LatticeSpinMatrix
sMat = GammaFive*sMat; // SpinMatrix * LatticeSpinMatrix
@ -240,6 +251,9 @@ int main (int argc, char ** argv)
scm=transpose(scm);
scm=transposeIndex<1>(scm);
// Foo = Foo+scalar; // LatticeColourMatrix+Scalar
// Foo = Foo*scalar; // LatticeColourMatrix*Scalar
// Foo = Foo-scalar; // LatticeColourMatrix-Scalar
@ -279,7 +293,8 @@ int main (int argc, char ** argv)
pokeIndex<1> (c_m,c,0,0);
}
*/
FooBar = Bar;
/*
@ -332,14 +347,14 @@ int main (int argc, char ** argv)
// Lattice SU(3) x SU(3)
Fine.Barrier();
FooBar = Foo * Bar;
// Lattice 12x12 GEMM
scFooBar = scFoo * scBar;
// Benchmark some simple operations LatticeSU3 * Lattice SU3.
double t0,t1,flops;
double bytes;
int ncall=100;
int ncall=5000;
int Nc = Grid::QCD::Nc;
LatticeGaugeField U(&Fine);
@ -351,19 +366,21 @@ int main (int argc, char ** argv)
if ( Fine.IsBoss() ) {
printf("%f flop and %f bytes\n",flops,bytes/ncall);
}
FooBar = Foo * Bar;
FooBar = Foo * Bar;
Fine.Barrier();
t0=usecond();
for(int i=0;i<ncall;i++){
Fine.Barrier();
mult(FooBar,Foo,Bar); // this is better
}
t1=usecond();
Fine.Barrier();
if ( Fine.IsBoss() ) {
#ifdef OMP
printf("mult NumThread %d , Lattice size %d , %f us per call\n",omp_get_max_threads(),lat,(t1-t0)/ncall);
#endif
printf("mult NumThread %d , Lattice size %d , %f us per call\n",omp,lat,(t1-t0)/ncall);
printf("mult NumThread %d , Lattice size %d , %f Mflop/s\n",omp,lat,flops/(t1-t0));
printf("mult NumThread %d , Lattice size %d , %f MB/s\n",omp,lat,bytes/(t1-t0));
}
@ -375,6 +392,7 @@ int main (int argc, char ** argv)
t0=usecond();
for(int i=0;i<ncall;i++){
Fine.Barrier();
//Cshift(Bar,1,-1);
mult(FooBar,Foo,Cshift(Bar,1,-1));
//mult(FooBar,Foo,Bar);
//FooBar = Foo * Bar; // this is bad
@ -525,5 +543,9 @@ int main (int argc, char ** argv)
} // loop for lat
} // loop for omp
std::cout << sizeof(vComplexF) << std::endl;
Grid_finalize();
}

6
tests/Makefile.am
View File

@ -5,7 +5,7 @@ AM_LDFLAGS = -L$(top_builddir)/lib
#
# Test code
#
bin_PROGRAMS = Grid_main Grid_stencil Grid_nersc_io Grid_cshift Grid_gamma Grid_simd Grid_rng Grid_remez Grid_rng_fixed Grid_simd_new
bin_PROGRAMS = Grid_main Grid_stencil Grid_nersc_io Grid_cshift Grid_gamma Grid_simd Grid_rng Grid_remez Grid_rng_fixed
Grid_main_SOURCES = Grid_main.cc
Grid_main_LDADD = -lGrid
@ -34,5 +34,5 @@ Grid_stencil_LDADD = -lGrid
Grid_simd_SOURCES = Grid_simd.cc
Grid_simd_LDADD = -lGrid
Grid_simd_new_SOURCES = Grid_simd_new.cc
Grid_simd_new_LDADD = -lGrid
#Grid_simd_new_SOURCES = Grid_simd_new.cc
#Grid_simd_new_LDADD = -lGrid