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Hopping_Matrix.c
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Hopping_Matrix.c
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/**********************************************************************
*
*
* Copyright (C) 2001 Martin Luescher
* 2002 Martin Hasenbusch
* 2003, 2004, 2005, 2006, 2007, 2008 Carsten Urbach
*
* BG and halfspinor versions (C) 2007, 2008 Carsten Urbach
*
* This file is based on an implementation of the Dirac operator
* written by Martin Luescher, modified by Martin Hasenbusch in 2002
* and modified and extended by Carsten Urbach from 2003-2008
*
* This file is part of tmLQCD.
*
* tmLQCD is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* tmLQCD is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with tmLQCD. If not, see <http://www.gnu.org/licenses/>.
*
*
* Hopping_Matrix is the conventional Wilson
* hopping matrix
*
* \kappa\sum_{\pm\mu}(r+\gamma_\mu)U_{x,\mu}
*
* for ieo = 0 this is M_{eo}, for ieo = 1
* it is M_{oe}
*
* l is the output, k the input field
*
* Structure of top level precompiler directives
*
* - defining _USE_HALFSPINOR implies that we also use
* a "gauge copy"
*
* - such that we are checking for the _USE_GAUGECOPY feature seperatly in the
* ELSE branch of the "if defined _USE_HALFSPINOR" statement
*
* - the numbers represent the certain implementation of Hopping_Matrix
*
* #if defined _USE_HALFSPINOR
* #if ((defined SSE2)||(defined SSE3))
* 1.
* #elif (defined BGL && defined XLC)
* 2.
* #else
* 3.
* #endif
* #else * thats _USE_HALFSPINOR *
* #if ((defined SSE2)||(defined SSE3))
* #if (defined _USE_TSPLITPAR)
* 4.
* #else
* 5.
* #endif
* #elif (defined BGL && defined XLC)
* 6.
* #elif defined XLC
* 7.
* * else of If defined SSE2 and if defined XLC *
* #else
* 8.
* #endif
* #endif * thats _USE_HALFSPINOR *
*
****************************************************************/
#ifdef HAVE_CONFIG_H
# include<config.h>
#endif
#include <stdlib.h>
#include <stdio.h>
#include "global.h"
#include "su3.h"
#include "sse.h"
#ifdef MPI
# include "xchange_field.h"
# ifdef _USE_TSPLITPAR
# include "xchange_field_tslice.h"
# endif
# if defined _USE_HALFSPINOR
# include "xchange_halffield.h"
# endif
#endif
#include "boundary.h"
#include "init_dirac_halfspinor.h"
#include "update_backward_gauge.h"
#include "Hopping_Matrix.h"
#if defined _USE_HALFSPINOR
# if ((defined SSE2)||(defined SSE3))
/* 1. */
/* input on k; output on l */
void Hopping_Matrix(const int ieo, spinor * const l, spinor * const k){
int ix, i;
su3 * restrict U ALIGN;
static spinor rs;
spinor * restrict s ALIGN;
halfspinor ** phi ALIGN;
#if defined OPTERON
const int predist=2;
#else
const int predist=1;
#endif
#ifdef _KOJAK_INST
#pragma pomp inst begin(hoppingmatrix)
#endif
#ifdef _GAUGE_COPY
if(g_update_gauge_copy) {
update_backward_gauge(g_gauge_field);
}
#endif
/* We will run through the source vector now */
/* instead of the solution vector */
s = k;
_prefetch_spinor(s);
if(ieo == 0) {
U = g_gauge_field_copy[0][0];
}
else {
U = g_gauge_field_copy[1][0];
}
phi = NBPointer[ieo];
_prefetch_su3(U);
/**************** loop over all lattice sites ******************/
ix=0;
for(i = 0; i < (VOLUME)/2; i++){
/*********************** direction +0 ************************/
_prefetch_su3(U+predist);
_sse_load(s->s0);
_sse_load_up(s->s2);
_sse_vector_add();
_sse_su3_multiply((*U));
_sse_vector_cmplx_mul(ka0);
_sse_store_nt_up(phi[ix]->s0);
_sse_load(s->s1);
_sse_load_up(s->s3);
_sse_vector_add();
_sse_su3_multiply((*U));
_sse_vector_cmplx_mul(ka0);
_sse_store_nt_up(phi[ix]->s1);
U++;
ix++;
/*********************** direction -0 ************************/
_sse_load(s->s0);
_sse_load_up(s->s2);
_sse_vector_sub();
_sse_store_nt(phi[ix]->s0);
_sse_load(s->s1);
_sse_load_up(s->s3);
_sse_vector_sub();
_sse_store_nt(phi[ix]->s1);
ix++;
/*********************** direction +1 ************************/
_prefetch_su3(U+predist);
_sse_load(s->s0);
/*next not needed?*/
_sse_load_up(s->s3);
_sse_vector_i_mul();
_sse_vector_add();
_sse_su3_multiply((*U));
_sse_vector_cmplx_mul(ka1);
_sse_store_nt_up(phi[ix]->s0);
_sse_load(s->s1);
_sse_load_up(s->s2);
_sse_vector_i_mul();
_sse_vector_add();
_sse_su3_multiply((*U));
_sse_vector_cmplx_mul(ka1);
_sse_store_nt_up(phi[ix]->s1);
ix++;
U++;
/*********************** direction -1 ************************/
_sse_load(s->s0);
_sse_load_up(s->s3);
_sse_vector_i_mul();
_sse_vector_sub();
_sse_store_nt(phi[ix]->s0);
_sse_load(s->s1);
_sse_load_up(s->s2);
_sse_vector_i_mul();
_sse_vector_sub();
_sse_store_nt(phi[ix]->s1);
ix++;
/*********************** direction +2 ************************/
_prefetch_su3(U+predist);
_sse_load(s->s0);
_sse_load_up(s->s3);
_sse_vector_add();
_sse_su3_multiply((*U));
_sse_vector_cmplx_mul(ka2);
_sse_store_nt_up(phi[ix]->s0);
_sse_load(s->s1);
_sse_load_up(s->s2);
_sse_vector_sub();
_sse_su3_multiply((*U));
_sse_vector_cmplx_mul(ka2);
_sse_store_nt_up(phi[ix]->s1);
ix++;
U++;
/*********************** direction -2 ************************/
_sse_load(s->s0);
_sse_load_up(s->s3);
_sse_vector_sub();
_sse_store_nt(phi[ix]->s0);
_sse_load(s->s1);
_sse_load_up(s->s2);
_sse_vector_add();
_sse_store_nt(phi[ix]->s1);
ix++;
/*********************** direction +3 ************************/
_prefetch_su3(U+predist);
_prefetch_spinor(s+1);
_sse_load(s->s0);
_sse_load_up(s->s2);
_sse_vector_i_mul();
_sse_vector_add();
_sse_su3_multiply((*U));
_sse_vector_cmplx_mul(ka3);
_sse_store_nt_up(phi[ix]->s0);
_sse_load(s->s1);
_sse_load_up(s->s3);
_sse_vector_i_mul();
_sse_vector_sub();
_sse_su3_multiply((*U));
_sse_vector_cmplx_mul(ka3);
_sse_store_nt_up(phi[ix]->s1);
ix++;
U++;
/*********************** direction -3 ************************/
_sse_load(s->s0);
_sse_load_up(s->s2);
_sse_vector_i_mul();
_sse_vector_sub();
_sse_store_nt(phi[ix]->s0);
_sse_load(s->s1);
_sse_load_up(s->s3);
_sse_vector_i_mul();
_sse_vector_add();
_sse_store_nt(phi[ix]->s1);
ix++;
s++;
}
# if (defined MPI && !defined _NO_COMM)
xchange_halffield();
# endif
s = l;
phi = NBPointer[2 + ieo];
if(ieo == 0) {
U = g_gauge_field_copy[1][0];
}
else {
U = g_gauge_field_copy[0][0];
}
_prefetch_su3(U);
/* Now we sum up and expand to a full spinor */
ix = 0;
for(i = 0; i < (VOLUME)/2; i++){
/*********************** direction +0 ************************/
_vector_assign(rs.s0, phi[ix]->s0);
_vector_assign(rs.s2, phi[ix]->s0);
_vector_assign(rs.s1, phi[ix]->s1);
_vector_assign(rs.s3, phi[ix]->s1);
ix++;
/*********************** direction -0 ************************/
_prefetch_su3(U+predist);
_sse_load(phi[ix]->s0);
_sse_su3_inverse_multiply((*U));
_sse_vector_cmplxcg_mul(ka0);
_sse_load(rs.s0);
_sse_vector_add();
_sse_store(rs.s0);
_sse_load(rs.s2);
_sse_vector_sub();
_sse_store(rs.s2);
_sse_load(phi[ix]->s1);
_sse_su3_inverse_multiply((*U));
_sse_vector_cmplxcg_mul(ka0);
_sse_load(rs.s1);
_sse_vector_add();
_sse_store(rs.s1);
_sse_load(rs.s3);
_sse_vector_sub();
_sse_store(rs.s3);
ix++;
U++;
/*********************** direction +1 ************************/
_sse_load_up(phi[ix]->s0);
_sse_load(rs.s0);
_sse_vector_add();
_sse_store(rs.s0);
_sse_load(rs.s3);
_sse_vector_i_mul();
_sse_vector_sub();
_sse_store(rs.s3);
_sse_load_up(phi[ix]->s1);
_sse_load(rs.s1);
_sse_vector_add();
_sse_store(rs.s1);
_sse_load(rs.s2);
_sse_vector_i_mul();
_sse_vector_sub();
_sse_store(rs.s2);
ix++;
/*********************** direction -1 ************************/
_prefetch_su3(U+predist);
_sse_load(phi[ix]->s0);
_sse_su3_inverse_multiply((*U));
_sse_vector_cmplxcg_mul(ka1);
_sse_load(rs.s0);
_sse_vector_add();
_sse_store(rs.s0);
_sse_load(rs.s3);
_sse_vector_i_mul();
_sse_vector_add();
_sse_store(rs.s3);
_sse_load(phi[ix]->s1);
_sse_su3_inverse_multiply((*U));
_sse_vector_cmplxcg_mul(ka1);
_sse_load(rs.s1);
_sse_vector_add();
_sse_store(rs.s1);
_sse_load(rs.s2);
_sse_vector_i_mul();
_sse_vector_add();
_sse_store(rs.s2);
ix++;
U++;
/*********************** direction +2 ************************/
_sse_load_up(phi[ix]->s0);
_sse_load(rs.s0);
_sse_vector_add();
_sse_store(rs.s0);
_sse_load(rs.s3);
_sse_vector_add();
_sse_store(rs.s3);
_sse_load_up(phi[ix]->s1);
_sse_load(rs.s1);
_sse_vector_add();
_sse_store(rs.s1);
_sse_load(rs.s2);
_sse_vector_sub();
_sse_store(rs.s2);
ix++;
/*********************** direction -2 ************************/
_prefetch_su3(U+predist);
_sse_load(phi[ix]->s0);
_sse_su3_inverse_multiply((*U));
_sse_vector_cmplxcg_mul(ka2);
_sse_load(rs.s0);
_sse_vector_add();
_sse_store(rs.s0);
_sse_load(rs.s3);
_sse_vector_sub();
_sse_store(rs.s3);
_sse_load(phi[ix]->s1);
_sse_su3_inverse_multiply((*U));
_sse_vector_cmplxcg_mul(ka2);
_sse_load(rs.s1);
_sse_vector_add();
_sse_store(rs.s1);
_sse_load(rs.s2);
_sse_vector_add();
_sse_store(rs.s2);
ix++;
U++;
/*********************** direction +3 ************************/
_sse_load_up(phi[ix]->s0);
_sse_load(rs.s0);
_sse_vector_add();
_sse_store(rs.s0);
_sse_load(rs.s2);
_sse_vector_i_mul();
_sse_vector_sub();
_sse_store(rs.s2);
_sse_load_up(phi[ix]->s1);
_sse_load(rs.s1);
_sse_vector_add();
_sse_store(rs.s1);
_sse_load(rs.s3);
_sse_vector_i_mul();
_sse_vector_add();
_sse_store(rs.s3);
ix++;
/*********************** direction -3 ************************/
_prefetch_su3(U+predist);
_prefetch_spinor(s+1);
_sse_load(phi[ix]->s0);
_sse_su3_inverse_multiply((*U));
_sse_vector_cmplxcg_mul(ka3);
_sse_load(rs.s0);
_sse_vector_add();
_sse_store_nt(s->s0);
_sse_load(rs.s2);
_sse_vector_i_mul();
_sse_vector_add();
_sse_store_nt(s->s2);
_sse_load(phi[ix]->s1);
_sse_su3_inverse_multiply((*U));
_sse_vector_cmplxcg_mul(ka3);
_sse_load(rs.s1);
_sse_vector_add();
_sse_store_nt(s->s1);
_sse_load(rs.s3);
_sse_vector_i_mul();
_sse_vector_sub();
_sse_store_nt(s->s3);
ix++;
U++;
s++;
}
#ifdef _KOJAK_INST
#pragma pomp inst end(hoppingmatrix)
#endif
}
# elif (defined BGL && defined XLC)
/**********************************
*
* Blue Gene/L Version
*
* Author: Carsten Urbach
*
**********************************/
/* 2. */
void Hopping_Matrix(const int ieo, spinor * const l, spinor * const k){
int i, ix;
su3 * restrict U ALIGN;
spinor * restrict s ALIGN;
halfspinor * restrict * phi ALIGN;
halfspinor32 * restrict * phi32 ALIGN;
/* We have 32 registers available */
double _Complex reg00, reg01, reg02, reg03, reg04, reg05;
double _Complex reg10, reg11, reg12, reg13, reg14, reg15;
/* For the gauge field, reuse the first three!*/
double _Complex u00, u01, u02, u10, u11, u12;
double _Complex reg20, reg21;
/* The following contains the result spinor (12 regs) */
double _Complex rs00, rs01, rs02, rs10, rs11, rs12, rs20, rs21, rs22,
rs30, rs31, rs32;
#ifdef _KOJAK_INST
#pragma pomp inst begin(hoppingmatrix)
#endif
#pragma disjoint(*s, *U)
#ifdef _GAUGE_COPY
if(g_update_gauge_copy) {
update_backward_gauge(g_gauge_field);
}
#endif
__alignx(16, l);
__alignx(16, k);
if(g_sloppy_precision == 1 && g_sloppy_precision_flag == 1) {
/* Take the 64 Bit precision part and replace */
/* _bgl_load_reg0|1 with _bgl_load_reg0|1_32 */
/* _bgl_load_rs0|1|2|3 with _bgl_load_rs0|1|2|3_32*/
/* phi with phi32*/
/* _bgl_store_reg0|1 with _bgl_store_reg0|1_32 */
/* _bgl_store_reg0|1_up with _bgl_store_reg0|1_up_32 */
/* HalfSpinor with Halfspinor32 */
/* _bgl_load_rs0|1 with _bgl_load_rs0|1_32*/
/* xchange_halffield with xchange_halffield_32 */
__alignx(16, HalfSpinor32);
/* We will run through the source vector now */
/* instead of the solution vector */
s = k;
_prefetch_spinor(s);
/* s contains the source vector */
if(ieo == 0) {
U = g_gauge_field_copy[0][0];
}
else {
U = g_gauge_field_copy[1][0];
}
phi32 = NBPointer32[ieo];
_prefetch_su3(U);
/**************** loop over all lattice sites ******************/
ix=0;
for(i = 0; i < (VOLUME)/2; i++){
_bgl_load_rs0(s->s0);
_bgl_load_rs1(s->s1);
_bgl_load_rs2(s->s2);
_bgl_load_rs3(s->s3);
s++;
_prefetch_spinor(s);
/*********************** direction +0 ************************/
_prefetch_su3(U+1);
_bgl_vector_add_rs2_to_rs0_reg0();
_bgl_vector_add_rs3_to_rs1_reg1();
_bgl_su3_multiply_double((*U));
_bgl_vector_cmplx_mul_double(ka0);
/* result is now in regx0, regx1, regx2 , x=0,1 */
_bgl_store_reg0_up_32(phi32[ix]->s0);
_bgl_store_reg1_up_32(phi32[ix]->s1);
U++;
ix++;
/*********************** direction -0 ************************/
_bgl_vector_sub_rs2_from_rs0_reg0();
_bgl_vector_sub_rs3_from_rs1_reg1();
_bgl_store_reg0_32(phi32[ix]->s0);
_bgl_store_reg1_32(phi32[ix]->s1);
ix++;
/*********************** direction +1 ************************/
_prefetch_su3(U+1);
_bgl_vector_i_mul_add_rs3_to_rs0_reg0();
_bgl_vector_i_mul_add_rs2_to_rs1_reg1();
_bgl_su3_multiply_double((*U));
_bgl_vector_cmplx_mul_double(ka1);
_bgl_store_reg0_up_32(phi32[ix]->s0);
_bgl_store_reg1_up_32(phi32[ix]->s1);
ix++;
U++;
/*********************** direction -1 ************************/
_bgl_vector_i_mul_sub_rs3_from_rs0_reg0();
_bgl_vector_i_mul_sub_rs2_from_rs1_reg1();
_bgl_store_reg0_32(phi32[ix]->s0);
_bgl_store_reg1_32(phi32[ix]->s1);
ix++;
/*********************** direction +2 ************************/
_prefetch_su3(U+1);
_bgl_vector_add_rs3_to_rs0_reg0();
_bgl_vector_sub_rs2_from_rs1_reg1();
_bgl_su3_multiply_double((*U));
_bgl_vector_cmplx_mul_double(ka2);
_bgl_store_reg0_up_32(phi32[ix]->s0);
_bgl_store_reg1_up_32(phi32[ix]->s1);
ix++;
U++;
/*********************** direction -2 ************************/
_bgl_vector_sub_rs3_from_rs0_reg0();
_bgl_vector_add_rs2_to_rs1_reg1();
_bgl_store_reg0_32(phi32[ix]->s0);
_bgl_store_reg1_32(phi32[ix]->s1);
ix++;
/*********************** direction +3 ************************/
_prefetch_su3(U+1);
_bgl_vector_i_mul_add_rs2_to_rs0_reg0();
_bgl_vector_i_mul_sub_rs3_from_rs1_reg1();
_bgl_su3_multiply_double((*U));
_bgl_vector_cmplx_mul_double(ka3);
_bgl_store_reg0_up_32(phi32[ix]->s0);
_bgl_store_reg1_up_32(phi32[ix]->s1);
ix++;
U++;
/*********************** direction -3 ************************/
_bgl_vector_i_mul_sub_rs2_from_rs0_reg0();
_bgl_vector_i_mul_add_rs3_to_rs1_reg1();
_bgl_store_reg0_32(phi32[ix]->s0);
_bgl_store_reg1_32(phi32[ix]->s1);
ix++;
/************************ end of loop ************************/
}
# if (defined MPI && !defined _NO_COMM)
xchange_halffield32();
# endif
s = l;
phi32 = NBPointer32[2 + ieo];
if(ieo == 0) {
U = g_gauge_field_copy[1][0];
}
else {
U = g_gauge_field_copy[0][0];
}
_prefetch_halfspinor(phi32[0]);
_prefetch_su3(U);
/* Now we sum up and expand to a full spinor */
ix = 0;
/* _prefetch_spinor_for_store(s); */
for(i = 0; i < (VOLUME)/2; i++){
/* This causes a lot of trouble, do we understand this? */
/* _prefetch_spinor_for_store(s); */
_prefetch_halfspinor(phi32[ix+1]);
/*********************** direction +0 ************************/
_bgl_load_rs0_32(phi32[ix]->s0);
rs20 = rs00;
rs21 = rs01;
rs22 = rs02;
_bgl_load_rs1_32(phi32[ix]->s1);
rs30 = rs10;
rs31 = rs11;
rs32 = rs12;
ix++;
/*********************** direction -0 ************************/
_prefetch_su3(U+1);
_bgl_load_reg0_32(phi32[ix]->s0);
_bgl_load_reg1_32(phi32[ix]->s1);
_bgl_su3_inverse_multiply_double((*U));
_bgl_vector_cmplxcg_mul_double(ka0);
/* result is in the upper parts of reg0? and reg1? */
_bgl_add_to_rs0_reg0();
_bgl_sub_from_rs2_reg0();
_bgl_add_to_rs1_reg1();
_bgl_sub_from_rs3_reg1();
U++;
ix++;
/*********************** direction +1 ************************/
_bgl_load_reg0_up_32(phi32[ix]->s0);
_bgl_load_reg1_up_32(phi32[ix]->s1);
_bgl_add_to_rs0_reg0();
_bgl_i_mul_sub_from_rs3_reg0();
_bgl_add_to_rs1_reg1();
_bgl_i_mul_sub_from_rs2_reg1();
ix++;
/*********************** direction -1 ************************/
_prefetch_su3(U+1);
_bgl_load_reg0_32(phi32[ix]->s0);
_bgl_load_reg1_32(phi32[ix]->s1);
_bgl_su3_inverse_multiply_double((*U));
_bgl_vector_cmplxcg_mul_double(ka1);
_bgl_add_to_rs0_reg0();
_bgl_add_to_rs1_reg1();
_bgl_i_mul_add_to_rs3_reg0();
_bgl_i_mul_add_to_rs2_reg1();
U++;
ix++;
/*********************** direction +2 ************************/
_bgl_load_reg0_up_32(phi32[ix]->s0);
_bgl_load_reg1_up_32(phi32[ix]->s1);
_bgl_add_to_rs0_reg0();
_bgl_add_to_rs1_reg1();
_bgl_sub_from_rs2_reg1();
_bgl_add_to_rs3_reg0();
ix++;
/*********************** direction -2 ************************/
_prefetch_su3(U+1);
_bgl_load_reg0_32(phi32[ix]->s0);
_bgl_load_reg1_32(phi32[ix]->s1);
_bgl_su3_inverse_multiply_double((*U));
_bgl_vector_cmplxcg_mul_double(ka2);
_bgl_add_to_rs0_reg0();
_bgl_add_to_rs1_reg1();
_bgl_add_to_rs2_reg1();
_bgl_sub_from_rs3_reg0();
U++;
ix++;
/*********************** direction +3 ************************/
_bgl_load_reg0_up_32(phi32[ix]->s0);
_bgl_load_reg1_up_32(phi32[ix]->s1);
_bgl_add_to_rs0_reg0();
_bgl_add_to_rs1_reg1();
_bgl_i_mul_sub_from_rs2_reg0();
_bgl_i_mul_add_to_rs3_reg1();
ix++;
/*********************** direction -3 ************************/
_prefetch_su3(U+1);
_bgl_load_reg0_32(phi32[ix]->s0);
_bgl_load_reg1_32(phi32[ix]->s1);
_bgl_su3_inverse_multiply_double((*U));
_bgl_vector_cmplxcg_mul_double(ka3);
_bgl_add_to_rs0_reg0();
_bgl_store_rs0(s->s0);
_bgl_i_mul_add_to_rs2_reg0();
_bgl_store_rs2(s->s2);
_bgl_add_to_rs1_reg1();
_bgl_store_rs1(s->s1);
_bgl_i_mul_sub_from_rs3_reg1();
_bgl_store_rs3(s->s3);
U++;
ix++;
s++;
}
}
else {
__alignx(16, HalfSpinor);
/* We will run through the source vector now */
/* instead of the solution vector */
s = k;
_prefetch_spinor(s);
/* s contains the source vector */
if(ieo == 0) {
U = g_gauge_field_copy[0][0];
}
else {
U = g_gauge_field_copy[1][0];
}
phi = NBPointer[ieo];
_prefetch_su3(U);
/**************** loop over all lattice sites ******************/
ix=0;
for(i = 0; i < (VOLUME)/2; i++){
_prefetch_halfspinor(phi[ix+4]);
_bgl_load_rs0(s->s0);
_bgl_load_rs1(s->s1);
_bgl_load_rs2(s->s2);
_bgl_load_rs3(s->s3);
s++;
_prefetch_spinor(s);
/*********************** direction +0 ************************/
_prefetch_su3(U+1);
_bgl_vector_add_rs2_to_rs0_reg0();
_bgl_vector_add_rs3_to_rs1_reg1();
_bgl_su3_multiply_double((*U));
_bgl_vector_cmplx_mul_double(ka0);
/* result is now in regx0, regx1, regx2 , x=0,1 */
_bgl_store_reg0_up(phi[ix]->s0);
_bgl_store_reg1_up(phi[ix]->s1);
U++;
ix++;
/*********************** direction -0 ************************/
_prefetch_halfspinor(phi[ix+4]);
_bgl_vector_sub_rs2_from_rs0_reg0();
_bgl_vector_sub_rs3_from_rs1_reg1();
_bgl_store_reg0(phi[ix]->s0);
_bgl_store_reg1(phi[ix]->s1);
ix++;
/*********************** direction +1 ************************/
_prefetch_halfspinor(phi[ix+4]);
_prefetch_su3(U+1);
_bgl_vector_i_mul_add_rs3_to_rs0_reg0();
_bgl_vector_i_mul_add_rs2_to_rs1_reg1();
_bgl_su3_multiply_double((*U));
_bgl_vector_cmplx_mul_double(ka1);
_bgl_store_reg0_up(phi[ix]->s0);
_bgl_store_reg1_up(phi[ix]->s1);
ix++;
U++;
/*********************** direction -1 ************************/
_prefetch_halfspinor(phi[ix+4]);
_bgl_vector_i_mul_sub_rs3_from_rs0_reg0();
_bgl_vector_i_mul_sub_rs2_from_rs1_reg1();
_bgl_store_reg0(phi[ix]->s0);
_bgl_store_reg1(phi[ix]->s1);
ix++;
/*********************** direction +2 ************************/
_prefetch_halfspinor(phi[ix+4]);
_prefetch_su3(U+1);
_bgl_vector_add_rs3_to_rs0_reg0();
_bgl_vector_sub_rs2_from_rs1_reg1();
_bgl_su3_multiply_double((*U));
_bgl_vector_cmplx_mul_double(ka2);
_bgl_store_reg0_up(phi[ix]->s0);
_bgl_store_reg1_up(phi[ix]->s1);
ix++;
U++;
/*********************** direction -2 ************************/
_prefetch_halfspinor(phi[ix+4]);
_bgl_vector_sub_rs3_from_rs0_reg0();
_bgl_vector_add_rs2_to_rs1_reg1();
_bgl_store_reg0(phi[ix]->s0);
_bgl_store_reg1(phi[ix]->s1);
ix++;
/*********************** direction +3 ************************/
_prefetch_halfspinor(phi[ix+4]);
_prefetch_su3(U+1);
_bgl_vector_i_mul_add_rs2_to_rs0_reg0();
_bgl_vector_i_mul_sub_rs3_from_rs1_reg1();
_bgl_su3_multiply_double((*U));
_bgl_vector_cmplx_mul_double(ka3);
_bgl_store_reg0_up(phi[ix]->s0);
_bgl_store_reg1_up(phi[ix]->s1);
ix++;
U++;
/*********************** direction -3 ************************/
_prefetch_halfspinor(phi[ix+4]);
_bgl_vector_i_mul_sub_rs2_from_rs0_reg0();
_bgl_vector_i_mul_add_rs3_to_rs1_reg1();
_bgl_store_reg0(phi[ix]->s0);
_bgl_store_reg1(phi[ix]->s1);
ix++;
/************************ end of loop ************************/
}
# if (defined MPI && !defined _NO_COMM)
xchange_halffield();
# endif
s = l;
phi = NBPointer[2 + ieo];
_prefetch_halfspinor(phi[0]);
if(ieo == 0) {
U = g_gauge_field_copy[1][0];
}
else {
U = g_gauge_field_copy[0][0];
}
_prefetch_su3(U);
/* Now we sum up and expand to a full spinor */
ix = 0;
/* _prefetch_spinor_for_store(s); */
for(i = 0; i < (VOLUME)/2; i++){
/* This causes a lot of trouble, do we understand this? */
_prefetch_halfspinor(phi[ix+3]);
/*********************** direction +0 ************************/
_bgl_load_rs0(phi[ix]->s0);
rs20 = rs00;
rs21 = rs01;
rs22 = rs02;
_bgl_load_rs1(phi[ix]->s1);
rs30 = rs10;
rs31 = rs11;
rs32 = rs12;
ix++;
/*********************** direction -0 ************************/
_prefetch_halfspinor(phi[ix+3]);
_prefetch_su3(U+1);
_bgl_load_reg0(phi[ix]->s0);
_bgl_load_reg1(phi[ix]->s1);
_bgl_su3_inverse_multiply_double((*U));
_bgl_vector_cmplxcg_mul_double(ka0);
/* result is in the upper parts of reg0? and reg1? */
_bgl_add_to_rs0_reg0();
_bgl_sub_from_rs2_reg0();
_bgl_add_to_rs1_reg1();
_bgl_sub_from_rs3_reg1();
U++;
ix++;
/*********************** direction +1 ************************/
_prefetch_halfspinor(phi[ix+3]);
_bgl_load_reg0_up(phi[ix]->s0);
_bgl_load_reg1_up(phi[ix]->s1);
_bgl_add_to_rs0_reg0();
_bgl_i_mul_sub_from_rs3_reg0();
_bgl_add_to_rs1_reg1();
_bgl_i_mul_sub_from_rs2_reg1();
ix++;
/*********************** direction -1 ************************/
_prefetch_halfspinor(phi[ix+3]);
_prefetch_su3(U+1);
_bgl_load_reg0(phi[ix]->s0);
_bgl_load_reg1(phi[ix]->s1);
_bgl_su3_inverse_multiply_double((*U));
_bgl_vector_cmplxcg_mul_double(ka1);
_bgl_add_to_rs0_reg0();
_bgl_add_to_rs1_reg1();
_bgl_i_mul_add_to_rs3_reg0();
_bgl_i_mul_add_to_rs2_reg1();
U++;