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Added inplace version of intrinsic G-parity twist to hand-unrolled kernel

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This commit is contained in:
Christopher Kelly 2017-08-23 12:33:48 -04:00
parent 061e48fd73
commit b61835c1a5
1 changed files with 86 additions and 4 deletions
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90
lib/qcd/action/fermion/WilsonKernelsHand.cc
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@ -47,9 +47,6 @@ Author: paboyle <paboyle@ph.ed.ac.uk>
#define LOAD_CHIMU(DIR,F) \
{ const SiteSpinor & ref (in._odata[offset]); LOAD_CHIMU_BODY(F); }
#define LOAD_CHIMU_GPARITY(DIR,F) \
{ int g; const SiteSpinor & ref = GparityGetChi<SiteSpinor>(g,in._odata.data(),DIR,F,SE,st); LOAD_CHIMU_BODY(g); }
#define LOAD_CHI_BODY(F) \
Chi_00 = ref(F)(0)(0);\
Chi_01 = ref(F)(0)(1);\
@ -61,10 +58,95 @@ Author: paboyle <paboyle@ph.ed.ac.uk>
#define LOAD_CHI(DIR,F) \
{const SiteHalfSpinor &ref(buf[offset]); LOAD_CHI_BODY(F); }
#define LOAD_CHI_GPARITY(DIR,F) \
//G-parity implementations using implementation method
#define LOAD_CHIMU_GPARITY_IMPL(DIR,F) \
{ int g; const SiteSpinor & ref = GparityGetChi<SiteSpinor>(g,in._odata.data(),DIR,F,SE,st); LOAD_CHIMU_BODY(g); }
#define LOAD_CHI_GPARITY_IMPL(DIR,F) \
{ int g; const SiteHalfSpinor &ref = GparityGetChi<SiteHalfSpinor>(g,buf,DIR,F,SE,st); LOAD_CHI_BODY(g); }
//G-parity implementations using in-place intrinsic ops
//1l 1h -> 1h 1l
//0l 0h , 1h 1l -> 0l 1h 0h,1l
//0h,1l -> 1l,0h
//if( (distance == 1 && !perm_will_occur) || (distance == -1 && perm_will_occur) )
//Pulled fermion through forwards face, GPBC on upper component
//Need 0= 0l 1h 1= 1l 0h
//else if( (distance == -1 && !perm) || (distance == 1 && perm) )
//Pulled fermion through backwards face, GPBC on lower component
//Need 0= 1l 0h 1= 0l 1h
#define DO_TWIST(INTO,S,C,F, tmp1, tmp2, tmp3, tmp4) \
permute(tmp1, ref(1)(S)(C), permute_type); \
exchange(tmp2,tmp3, ref(0)(S)(C), tmp1, permute_type); \
permute(tmp4, tmp3, permute_type); \
if( (distance == 1 && !perm) || (distance == -1 && perm) ){ \
INTO = F == 0 ? tmp2 : tmp4; \
}else if( (distance == -1 && !perm) || (distance == 1 && perm) ){ \
INTO = F == 0 ? tmp4 : tmp2; \
}
#define LOAD_CHI_SETUP(DIR,F) \
int g = F; \
const int direction = st._directions[DIR]; \
const int distance = st._distances[DIR]; \
const int sl = st._grid->_simd_layout[direction]; \
int inplace_twist = 0; \
if(SE->_around_the_world && this->Params.twists[DIR % 4]){ \
if(sl == 1){ \
g = (F+1) % 2; \
}else{ \
inplace_twist = 1; \
} \
}
#define LOAD_CHIMU_GPARITY_INPLACE_TWIST(DIR,F) \
{ const SiteSpinor &ref(in._odata[offset]); \
LOAD_CHI_SETUP(DIR,F); \
if(!inplace_twist){ \
LOAD_CHIMU_BODY(g); \
}else{ \
const int permute_type = st._grid->PermuteType(direction); \
DO_TWIST(Chimu_00,0,0,F, U_00,U_01,U_10,U_11); \
DO_TWIST(Chimu_01,0,1,F, U_20,U_21,U_00,U_01); \
DO_TWIST(Chimu_02,0,2,F, U_10,U_11,U_20,U_21); \
DO_TWIST(Chimu_10,1,0,F, U_00,U_01,U_10,U_11); \
DO_TWIST(Chimu_11,1,1,F, U_20,U_21,U_00,U_01); \
DO_TWIST(Chimu_12,1,2,F, U_10,U_11,U_20,U_21); \
DO_TWIST(Chimu_20,2,0,F, U_00,U_01,U_10,U_11); \
DO_TWIST(Chimu_21,2,1,F, U_20,U_21,U_00,U_01); \
DO_TWIST(Chimu_22,2,2,F, U_10,U_11,U_20,U_21); \
DO_TWIST(Chimu_30,3,0,F, U_00,U_01,U_10,U_11); \
DO_TWIST(Chimu_31,3,1,F, U_20,U_21,U_00,U_01); \
DO_TWIST(Chimu_32,3,2,F, U_10,U_11,U_20,U_21); \
} \
}
#define LOAD_CHI_GPARITY_INPLACE_TWIST(DIR,F) \
{ const SiteHalfSpinor &ref(buf[offset]); \
LOAD_CHI_SETUP(DIR,F); \
if(!inplace_twist){ \
LOAD_CHI_BODY(g); \
}else{ \
const int permute_type = st._grid->PermuteType(direction); \
DO_TWIST(Chi_00,0,0,F, U_00,U_01,U_10,U_11); \
DO_TWIST(Chi_01,0,1,F, U_20,U_21,UChi_00,UChi_01); \
DO_TWIST(Chi_02,0,2,F, UChi_02,UChi_10,UChi_11,UChi_12); \
DO_TWIST(Chi_10,1,0,F, U_00,U_01,U_10,U_11); \
DO_TWIST(Chi_11,1,1,F, U_20,U_21,UChi_00,UChi_01); \
DO_TWIST(Chi_12,1,2,F, UChi_02,UChi_10,UChi_11,UChi_12); \
} \
}
//#define LOAD_CHI_GPARITY(DIR,F) LOAD_CHI_GPARITY_IMPL(DIR,F)
#define LOAD_CHI_GPARITY(DIR,F) LOAD_CHI_GPARITY_INPLACE_TWIST(DIR,F)
//#define LOAD_CHIMU_GPARITY(DIR,F) LOAD_CHIMU_GPARITY_IMPL(DIR,F)
#define LOAD_CHIMU_GPARITY(DIR,F) LOAD_CHIMU_GPARITY_INPLACE_TWIST(DIR,F)
// To splat or not to splat depends on the implementation
#define MULT_2SPIN_BODY \
Impl::loadLinkElement(U_00,ref()(0,0)); \