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delta_pp_2_pi_N_sequential_v4.c
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delta_pp_2_pi_N_sequential_v4.c
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/****************************************************
* delta_pp_2_pi_N_sequential_v4.c
*
* Fri Dec 16 12:16:45 EET 2011
*
* PURPOSE:
* TODO:
* DONE:
*
****************************************************/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <time.h>
#ifdef MPI
# include <mpi.h>
#endif
#ifdef OPENMP
#include <omp.h>
#endif
#include <getopt.h>
#define MAIN_PROGRAM
#include "ifftw.h"
#include "cvc_complex.h"
#include "ilinalg.h"
#include "icontract.h"
#include "global.h"
#include "cvc_geometry.h"
#include "cvc_utils.h"
#include "mpi_init.h"
#include "io.h"
#include "propagator_io.h"
#include "dml.h"
#include "gauge_io.h"
#include "Q_phi.h"
#include "fuzz.h"
#include "read_input_parser.h"
#include "smearing_techniques.h"
#include "make_H3orbits.h"
#include "contractions_io.h"
void usage() {
fprintf(stdout, "Code to perform contractions for proton 2-pt. function\n");
fprintf(stdout, "Usage: [options]\n");
fprintf(stdout, "Options: -v verbose [no effect, lots of stdout output]\n");
fprintf(stdout, " -f input filename [default proton.input]\n");
fprintf(stdout, " -p number of colors [default 1]\n");
fprintf(stdout, " -a write ascii output too [default no ascii output]\n");
fprintf(stdout, " -F fermion type [default Wilson fermion, id 1]\n");
fprintf(stdout, " -t number of threads for OPENMP [default 1]\n");
fprintf(stdout, " -g do random gauge transformation [default no gauge transformation]\n");
fprintf(stdout, " -h? this help\n");
#ifdef MPI
MPI_Abort(MPI_COMM_WORLD, 1);
MPI_Finalize();
#endif
exit(0);
}
int main(int argc, char **argv) {
const int n_c=3;
const int n_s=4;
const char outfile_prefix[] = "deltapp2piN";
int c, i, icomp, imom, count;
int filename_set = 0;
int append, status;
int l_LX_at, l_LXstart_at;
int ix, it, iix, x1,x2,x3;
int ir, ir2, is;
int VOL3;
int do_gt=0;
int dims[3];
double *connt=NULL;
spinor_propagator_type *connq=NULL, *connq_out=NULL;
int verbose = 0;
int sx0, sx1, sx2, sx3;
int write_ascii=0;
int fermion_type = _WILSON_FERMION; // Wilson fermion type
int smear_seq_source = 0;
int threadid;
char filename[200], contype[200], gauge_field_filename[200], line[200];
double ratime, retime;
//double plaq_m, plaq_r;
int mode = -1;
double *work=NULL;
fermion_propagator_type *fp1=NULL, *fp2=NULL, *fp3=NULL, *fp4=NULL, *fpaux=NULL, *uprop=NULL, *dprop=NULL;
spinor_propagator_type *sp1=NULL, *sp2=NULL;
double q[3], phase, *gauge_trafo=NULL, spinor1[24];
complex w, w1;
size_t items, bytes;
FILE *ofs;
int timeslice;
DML_Checksum ildg_gauge_field_checksum, *spinor_field_checksum=NULL, connq_checksum, *seq_spinor_field_checksum=NULL;
uint32_t nersc_gauge_field_checksum;
int gamma_proj_sign[] = {1,1,1,1,1,1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1};
/***********************************************************/
int *qlatt_id=NULL, *qlatt_count=NULL, **qlatt_rep=NULL, **qlatt_map=NULL, qlatt_nclass=0;
int use_lattice_momenta = 0;
double **qlatt_list=NULL;
/***********************************************************/
/***********************************************************/
int rel_momentum_filename_set = 0, rel_momentum_no=0;
int **rel_momentum_list=NULL;
char rel_momentum_filename[200];
/***********************************************************/
/***********************************************************/
int snk_momentum_no = 0, isnk;
int **snk_momentum_list = NULL;
int snk_momentum_filename_set = 0;
char snk_momentum_filename[200];
/***********************************************************/
/*******************************************************************
* Gamma components for the Delta:
*/
const int num_component = 4;
int gamma_component[2][4] = { {0, 1, 2, 3},
{5, 5, 5, 5} };
double gamma_component_sign[4] = {+1., +1., +1., +1.};
/*
*******************************************************************/
fftw_complex *in=NULL;
#ifdef MPI
fftwnd_mpi_plan plan_p;
#else
fftwnd_plan plan_p;
#endif
#ifdef MPI
MPI_Status status;
#endif
#ifdef MPI
MPI_Init(&argc, &argv);
#endif
while ((c = getopt(argc, argv, "Sah?vgf:F:p:P:s:m:")) != -1) {
switch (c) {
case 'v':
verbose = 1;
break;
case 'f':
strcpy(filename, optarg);
filename_set=1;
break;
case 'a':
write_ascii = 1;
fprintf(stdout, "# [] will write in ascii format\n");
break;
case 'F':
if(strcmp(optarg, "Wilson") == 0) {
fermion_type = _WILSON_FERMION;
} else if(strcmp(optarg, "tm") == 0) {
fermion_type = _TM_FERMION;
} else {
fprintf(stderr, "[] Error, unrecognized fermion type\n");
exit(145);
}
fprintf(stdout, "# [] will use fermion type %s ---> no. %d\n", optarg, fermion_type);
break;
case 'g':
do_gt = 1;
fprintf(stdout, "# [] will perform gauge transform\n");
break;
case 's':
use_lattice_momenta = 1;
fprintf(stdout, "# [] will use lattice momenta\n");
break;
case 'p':
rel_momentum_filename_set = 1;
strcpy(rel_momentum_filename, optarg);
fprintf(stdout, "# [] will use current momentum file %s\n", rel_momentum_filename);
break;
case 'P':
snk_momentum_filename_set = 1;
strcpy(snk_momentum_filename, optarg);
fprintf(stdout, "# [] will use nucleon momentum file %s\n", snk_momentum_filename);
break;
case 'm':
if(strcmp(optarg, "sequential")==0) {
mode = 1;
} else if(strcmp(optarg, "contract")==0) {
mode = 2;
}
fprintf(stdout, "# [] will use mode %d\n", mode);
break;
case 'S':
smear_seq_source = 1;
fprintf(stdout, "# [] will smear sequential soucre\n");
break;
case 'h':
case '?':
default:
usage();
break;
}
}
/* set the default values */
if(filename_set==0) strcpy(filename, "cvc.input");
fprintf(stdout, "# reading input from file %s\n", filename);
read_input_parser(filename);
/* some checks on the input data */
if((T_global == 0) || (LX==0) || (LY==0) || (LZ==0)) {
if(g_proc_id==0) fprintf(stdout, "T and L's must be set\n");
usage();
}
if(g_kappa == 0.) {
if(g_proc_id==0) fprintf(stdout, "kappa should be > 0.n");
usage();
}
#ifdef OPENMP
omp_set_num_threads(g_num_threads);
#else
fprintf(stdout, "[delta_pp_2_pi_N_sequential_v4] Warning, resetting global thread number to 1\n");
g_num_threads = 1;
#endif
/* initialize MPI parameters */
mpi_init(argc, argv);
#ifdef OPENMP
status = fftw_threads_init();
if(status != 0) {
fprintf(stderr, "\n[] Error from fftw_init_threads; status was %d\n", status);
exit(120);
}
#endif
/******************************************************
*
******************************************************/
VOL3 = LX*LY*LZ;
l_LX_at = LX;
l_LXstart_at = 0;
FFTW_LOC_VOLUME = T*LX*LY*LZ;
fprintf(stdout, "# [%2d] parameters:\n"\
"# [%2d] l_LX_at = %3d\n"\
"# [%2d] l_LXstart_at = %3d\n"\
"# [%2d] FFTW_LOC_VOLUME = %3d\n",
g_cart_id, g_cart_id, l_LX_at,
g_cart_id, l_LXstart_at, g_cart_id, FFTW_LOC_VOLUME);
if(init_geometry() != 0) {
fprintf(stderr, "ERROR from init_geometry\n");
exit(1);
}
geometry();
if(N_Jacobi>0) {
// alloc the gauge field
alloc_gauge_field(&g_gauge_field, VOL3);
switch(g_gauge_file_format) {
case 0:
sprintf(gauge_field_filename, "%s.%.4d", gaugefilename_prefix, Nconf);
break;
case 1:
sprintf(gauge_field_filename, "%s.%.5d", gaugefilename_prefix, Nconf);
break;
}
} else {
g_gauge_field = NULL;
}
/*********************************************************************
* gauge transformation
*********************************************************************/
if(do_gt) { init_gauge_trafo(&gauge_trafo, 1.); }
// determine the source location
sx0 = g_source_location/(LX*LY*LZ)-Tstart;
sx1 = (g_source_location%(LX*LY*LZ)) / (LY*LZ);
sx2 = (g_source_location%(LY*LZ)) / LZ;
sx3 = (g_source_location%LZ);
// g_source_time_slice = sx0;
fprintf(stdout, "# [] source location %d = (%d,%d,%d,%d)\n", g_source_location, sx0, sx1, sx2, sx3);
if(mode == 1 || mode == 2) {
/***************************************************************************
* read the relative momenta q to be used
***************************************************************************/
ofs = fopen(rel_momentum_filename, "r");
if(ofs == NULL) {
fprintf(stderr, "[] Error, could not open file %s for reading\n", rel_momentum_filename);
exit(6);
}
rel_momentum_no = 0;
while( fgets(line, 199, ofs) != NULL) {
if(line[0] != '#') {
rel_momentum_no++;
}
}
if(rel_momentum_no == 0) {
fprintf(stderr, "[] Error, number of momenta is zero\n");
exit(7);
} else {
fprintf(stdout, "# [] number of current momenta = %d\n", rel_momentum_no);
}
rewind(ofs);
rel_momentum_list = (int**)malloc(rel_momentum_no * sizeof(int*));
rel_momentum_list[0] = (int*)malloc(3*rel_momentum_no * sizeof(int));
for(i=1;i<rel_momentum_no;i++) { rel_momentum_list[i] = rel_momentum_list[i-1] + 3; }
count=0;
while( fgets(line, 199, ofs) != NULL) {
if(line[0] != '#') {
sscanf(line, "%d%d%d", rel_momentum_list[count], rel_momentum_list[count]+1, rel_momentum_list[count]+2);
count++;
}
}
fclose(ofs);
fprintf(stdout, "# [] current momentum list:\n");
for(i=0;i<rel_momentum_no;i++) {
if(rel_momentum_list[i][0] < 0 ) rel_momentum_list[i][0] += LX;
if(rel_momentum_list[i][1] < 0 ) rel_momentum_list[i][1] += LY;
if(rel_momentum_list[i][2] < 0 ) rel_momentum_list[i][2] += LZ;
fprintf(stdout, "\t%3d%3d%3d%3d\n", i, rel_momentum_list[i][0], rel_momentum_list[i][1], rel_momentum_list[i][2]);
}
} // of if mode == 1
if(mode == 2) {
/***************************************************************************
* read the nucleon final momenta to be used
***************************************************************************/
ofs = fopen(snk_momentum_filename, "r");
if(ofs == NULL) {
fprintf(stderr, "[] Error, could not open file %s for reading\n", snk_momentum_filename);
exit(6);
}
snk_momentum_no = 0;
while( fgets(line, 199, ofs) != NULL) {
if(line[0] != '#') {
snk_momentum_no++;
}
}
if(snk_momentum_no == 0) {
fprintf(stderr, "[] Error, number of momenta is zero\n");
exit(7);
} else {
fprintf(stdout, "# [] number of nucleon final momenta = %d\n", snk_momentum_no);
}
rewind(ofs);
snk_momentum_list = (int**)malloc(snk_momentum_no * sizeof(int*));
snk_momentum_list[0] = (int*)malloc(3*snk_momentum_no * sizeof(int));
for(i=1;i<snk_momentum_no;i++) { snk_momentum_list[i] = snk_momentum_list[i-1] + 3; }
count=0;
while( fgets(line, 199, ofs) != NULL) {
if(line[0] != '#') {
sscanf(line, "%d%d%d", snk_momentum_list[count], snk_momentum_list[count]+1, snk_momentum_list[count]+2);
count++;
}
}
fclose(ofs);
fprintf(stdout, "# [] the nucleon final momentum list:\n");
for(i=0;i<snk_momentum_no;i++) {
if(snk_momentum_list[i][0]<0) snk_momentum_list[i][0] += LX;
if(snk_momentum_list[i][1]<0) snk_momentum_list[i][1] += LY;
if(snk_momentum_list[i][2]<0) snk_momentum_list[i][2] += LZ;
fprintf(stdout, "\t%3d%3d%3d%3d\n", i, snk_momentum_list[i][0], snk_momentum_list[i][1], snk_momentum_list[i][2]);
}
} // of if mode == 2
// allocate memory for the spinor fields
g_spinor_field = NULL;
if(mode == 1) {
no_fields = 3;
g_spinor_field = (double**)calloc(no_fields, sizeof(double*));
for(i=0; i<no_fields-1; i++) alloc_spinor_field(&g_spinor_field[i], VOL3);
alloc_spinor_field(&g_spinor_field[no_fields-1], VOLUME);
if(N_Jacobi>0) work = g_spinor_field[1];
} else if(mode == 2) {
no_fields = 2*n_s*n_c;
if(N_Jacobi>0) no_fields++;
g_spinor_field = (double**)calloc(no_fields, sizeof(double*));
for(i=0; i<no_fields; i++) alloc_spinor_field(&g_spinor_field[i], VOL3);
if(N_Jacobi>0) work = g_spinor_field[no_fields-1];
}
spinor_field_checksum = (DML_Checksum*)malloc(n_s*n_c * sizeof(DML_Checksum) );
if(spinor_field_checksum == NULL ) {
fprintf(stderr, "[] Error, could not alloc checksums for spinor fields\n");
exit(73);
}
seq_spinor_field_checksum = (DML_Checksum*)malloc(rel_momentum_no*n_s*n_c * sizeof(DML_Checksum) );
if(seq_spinor_field_checksum == NULL ) {
fprintf(stderr, "[] Error, could not alloc checksums for seq. spinor fields\n");
exit(73);
}
if(mode == 1) {
/*************************************************************************
* sequential source
*************************************************************************/
// (1) read the prop., smear, multiply with gamma_5, save as source
// read timeslice of the gauge field
if( N_Jacobi>0 && smear_seq_source) {
switch(g_gauge_file_format) {
case 0:
status = read_lime_gauge_field_doubleprec_timeslice(g_gauge_field, gauge_field_filename, sx0, &ildg_gauge_field_checksum);
break;
case 1:
status = read_nersc_gauge_field_timeslice(g_gauge_field, gauge_field_filename, sx0, &nersc_gauge_field_checksum);
break;
}
if(status != 0) {
if(status != 8) { // exit status 8 refers to mismatch in checksums
fprintf(stderr, "[] Error, could not read gauge field\n");
exit(21);
} else {
fprintf(stdout, "# [] Warning, mismatch in checksums\n");
}
}
if(N_ape>0) {
fprintf(stdout, "# [] APE smearing gauge field timeslice no %d with parameters N_ape=%d and alpha_ape=%e\n", sx0, N_ape, alpha_ape);
#ifdef OPENMP
status = APE_Smearing_Step_Timeslice_threads(g_gauge_field, N_ape, alpha_ape);
#else
for(i=0; i<N_ape; i++) {
status = APE_Smearing_Step_Timeslice(g_gauge_field, alpha_ape);
}
#endif
}
}
// read timeslice of the 12 down-type propagators and smear them
for(is=0;is<n_s*n_c;is++) {
if(fermion_type != _TM_FERMION) {
sprintf(filename, "%s.%.4d.t%.2dx%.2dy%.2dz%.2d.%.2d.inverted", filename_prefix, Nconf, sx0, sx1, sx2, sx3, is);
} else {
sprintf(filename, "%s.%.4d.t%.2dx%.2dy%.2dz%.2d.%.2d.inverted", filename_prefix2, Nconf, sx0, sx1, sx2, sx3, is);
}
status = read_lime_spinor_timeslice(g_spinor_field[0], sx0, filename, 0, spinor_field_checksum+is);
if(status != 0) {
fprintf(stderr, "[] Error, could not read propagator from file %s\n", filename);
exit(102);
}
if(N_Jacobi > 0 && smear_seq_source) {
fprintf(stdout, "# [] Jacobi smearing propagator no. %d with paramters N_Jacobi=%d, kappa_Jacobi=%f\n",
is, N_Jacobi, kappa_Jacobi);
#ifdef OPENMP
Jacobi_Smearing_Step_one_Timeslice_threads(g_gauge_field, g_spinor_field[0], work, N_Jacobi, kappa_Jacobi);
#else
for(c=0; c<N_Jacobi; c++) {
Jacobi_Smearing_Step_one_Timeslice(g_gauge_field, g_spinor_field[0], work, kappa_Jacobi);
}
#endif
}
for(imom=0;imom<rel_momentum_no;imom++) {
for(ix=0;ix<VOLUME;ix++) { _fv_eq_zero(g_spinor_field[2]+_GSI(ix)); }
ix = 0;
iix = sx0 * VOL3;
for(x1=0;x1<LX;x1++) {
for(x2=0;x2<LY;x2++) {
for(x3=0;x3<LZ;x3++) {
phase = 2. * M_PI * ( (x1-sx1) * rel_momentum_list[imom][0] / (double)LX
+ (x2-sx2) * rel_momentum_list[imom][1] / (double)LY
+ (x3-sx3) * rel_momentum_list[imom][2] / (double)LZ );
w.re = cos(phase);
w.im = -sin(phase);
_fv_eq_gamma_ti_fv(spinor1, 5, g_spinor_field[0] + _GSI(ix));
_fv_eq_fv_ti_co(g_spinor_field[2]+_GSI(iix), spinor1, &w);
ix++;
iix++;
}}}
// save the sourceg_spinor_field[2]
sprintf(filename, "seq_%s.%.4d.t%.2dx%.2dy%.2dz%.2d.%.2d.qx%.2dqy%.2dqz%.2d", filename_prefix, Nconf, sx0, sx1, sx2, sx3, is,
rel_momentum_list[imom][0],rel_momentum_list[imom][1],rel_momentum_list[imom][2]);
status = write_lime_spinor(g_spinor_field[2], filename, 0, g_propagator_precision);
/*
// TEST
{
sprintf(filename,"seq_source.ascii.%.2d.%.2d.%.2d", is,g_nproc, g_cart_id);
ofs = fopen(filename,"w");
fprintf(ofs, "# [] the sequential source:\n");
for(ix=0;ix<VOLUME;ix++) {
for(i=0;i<12;i++) {
fprintf(ofs, "\t%6d%3d%25.16e%25.16e\n", ix, i, g_spinor_field[2][_GSI(ix)+2*i], g_spinor_field[2][_GSI(ix)+2*i+1]);
}
}
fclose(ofs);
}
*/
} // of imom
} // of is
} // of if mode == 1
if(mode == 2) {
/*************************************************************************
* contractions
*************************************************************************/
// allocate memory for the contractions
items = 4 * rel_momentum_no * num_component * T;
bytes = sizeof(double);
connt = (double*)malloc(items*bytes);
if(connt == NULL) {
fprintf(stderr, "\n[] Error, could not alloc connt\n");
exit(2);
}
for(ix=0; ix<items; ix++) connt[ix] = 0.;
items = num_component * (size_t)VOL3;
connq = create_sp_field( items );
if(connq == NULL) {
fprintf(stderr, "\n[] Error, could not alloc connq\n");
exit(2);
}
items = (size_t)rel_momentum_no * (size_t)num_component * (size_t)T * (size_t)snk_momentum_no;
connq_out = create_sp_field( items );
if(connq_out == NULL) {
fprintf(stderr, "\n[] Error, could not alloc connq_out\n");
exit(22);
}
// initialize FFTW
items = 2 * num_component * g_sv_dim * g_sv_dim * VOL3;
bytes = sizeof(double);
in = (fftw_complex*)malloc(num_component*g_sv_dim*g_sv_dim*VOL3*sizeof(fftw_complex));
if(in == NULL) {
fprintf(stderr, "[] Error, could not malloc in for FFTW\n");
exit(155);
}
dims[0]=LX; dims[1]=LY; dims[2]=LZ;
//plan_p = fftwnd_create_plan(3, dims, FFTW_FORWARD, FFTW_MEASURE | FFTW_IN_PLACE);
plan_p = fftwnd_create_plan_specific(3, dims, FFTW_FORWARD, FFTW_MEASURE, in, num_component*g_sv_dim*g_sv_dim, (fftw_complex*)( connq[0][0] ), num_component*g_sv_dim*g_sv_dim);
// create the fermion propagator points
uprop = (fermion_propagator_type*)malloc(g_num_threads*sizeof(fermion_propagator_type));
if(uprop== NULL) {
fprintf(stdout, "[] Error, could not alloc uprop\n");
exit(172);
} else {
for(i=0;i<g_num_threads;i++) create_fp(uprop+i);
}
dprop = (fermion_propagator_type*)malloc(g_num_threads*sizeof(fermion_propagator_type));
if(dprop== NULL) {
fprintf(stdout, "[] Error, could not alloc dprop\n");
exit(172);
} else {
for(i=0;i<g_num_threads;i++) create_fp(dprop+i);
}
fp1 = (fermion_propagator_type*)malloc(g_num_threads*sizeof(fermion_propagator_type));
if(fp1== NULL) {
fprintf(stdout, "[] Error, could not alloc fp1\n");
exit(172);
} else {
for(i=0;i<g_num_threads;i++) create_fp(fp1+i);
}
fp2 = (fermion_propagator_type*)malloc(g_num_threads*sizeof(fermion_propagator_type));
if(fp2== NULL) {
fprintf(stdout, "[] Error, could not alloc fp2\n");
exit(172);
} else {
for(i=0;i<g_num_threads;i++) create_fp(fp2+i);
}
fp3 = (fermion_propagator_type*)malloc(g_num_threads*sizeof(fermion_propagator_type));
if(fp3== NULL) {
fprintf(stdout, "[] Error, could not alloc fp3\n");
exit(172);
} else {
for(i=0;i<g_num_threads;i++) create_fp(fp3+i);
}
fp4 = (fermion_propagator_type*)malloc(g_num_threads*sizeof(fermion_propagator_type));
if(fp4== NULL) {
fprintf(stdout, "[] Error, could not alloc fp4\n");
exit(172);
} else {
for(i=0;i<g_num_threads;i++) create_fp(fp4+i);
}
fpaux = (fermion_propagator_type*)malloc(g_num_threads*sizeof(fermion_propagator_type));
if(fpaux== NULL) {
fprintf(stdout, "[] Error, could not alloc fpaux\n");
exit(172);
} else {
for(i=0;i<g_num_threads;i++) create_fp(fpaux+i);
}
sp1 = (spinor_propagator_type*)malloc(g_num_threads*sizeof(spinor_propagator_type));
if(sp1== NULL) {
fprintf(stdout, "[] Error, could not alloc sp1\n");
exit(172);
} else {
for(i=0;i<g_num_threads;i++) create_sp(sp1+i);
}
sp2 = (spinor_propagator_type*)malloc(g_num_threads*sizeof(spinor_propagator_type));
if(sp2== NULL) {
fprintf(stdout, "[] Error, could not alloc sp2\n");
exit(172);
} else {
for(i=0;i<g_num_threads;i++) create_sp(sp2+i);
}
/******************************************************
* loop on timeslices
******************************************************/
for(timeslice=0; timeslice<T; timeslice++)
// for(timeslice=1; timeslice<2; timeslice++)
{
append = (int)( timeslice != 0 );
// read timeslice of the gauge field
if( N_Jacobi>0) {
switch(g_gauge_file_format) {
case 0:
status = read_lime_gauge_field_doubleprec_timeslice(g_gauge_field, gauge_field_filename, timeslice, &ildg_gauge_field_checksum);
break;
case 1:
status = read_nersc_gauge_field_timeslice(g_gauge_field, gauge_field_filename, timeslice, &nersc_gauge_field_checksum);
break;
}
if(status != 0) {
fprintf(stderr, "[] Error, could not read gauge field\n");
exit(21);
}
#ifdef OPENMP
status = APE_Smearing_Step_Timeslice_threads(g_gauge_field, N_ape, alpha_ape);
#else
for(i=0; i<N_ape; i++) {
status = APE_Smearing_Step_Timeslice(g_gauge_field, alpha_ape);
}
#endif
}
// read timeslice of the 12 up-type propagators and smear them
for(is=0;is<n_s*n_c;is++) {
// if(do_gt == 0) {
sprintf(filename, "%s.%.4d.t%.2dx%.2dy%.2dz%.2d.%.2d.inverted", filename_prefix, Nconf, sx0, sx1, sx2, sx3, is);
status = read_lime_spinor_timeslice(g_spinor_field[is], timeslice, filename, 0, spinor_field_checksum+is);
if(status != 0) {
fprintf(stderr, "[] Error, could not read propagator from file %s\n", filename);
exit(102);
}
if(N_Jacobi > 0) {
fprintf(stdout, "# [] Jacobi smearing propagator no. %d with paramters N_Jacobi=%d, kappa_Jacobi=%f\n",
is, N_Jacobi, kappa_Jacobi);
#ifdef OPENMP
Jacobi_Smearing_Step_one_Timeslice_threads(g_gauge_field, g_spinor_field[is], work, N_Jacobi, kappa_Jacobi);
#else
for(c=0; c<N_Jacobi; c++) {
Jacobi_Smearing_Step_one_Timeslice(g_gauge_field, g_spinor_field[is], work, kappa_Jacobi);
}
#endif
}
// } else { // of if do_gt == 0
// // apply gt
// apply_gt_prop(gauge_trafo, g_spinor_field[is], is/n_c, is%n_c, 4, filename_prefix, g_source_location);
// } // of if do_gt == 0
}
/******************************************************
* loop on relative momenta
******************************************************/
for(imom=0;imom<rel_momentum_no; imom++) {
// read 12 sequential propagators
for(is=0;is<n_s*n_c;is++) {
// if(do_gt == 0) {
sprintf(filename, "seq_%s.%.4d.t%.2dx%.2dy%.2dz%.2d.%.2d.qx%.2dqy%.2dqz%.2d.inverted", filename_prefix, Nconf, sx0, sx1, sx2, sx3, is,
rel_momentum_list[imom][0],rel_momentum_list[imom][1],rel_momentum_list[imom][2]);
status = read_lime_spinor_timeslice(g_spinor_field[n_s*n_c+is], timeslice, filename, 0, seq_spinor_field_checksum+imom*n_s*n_c+is);
if(status != 0) {
fprintf(stderr, "[] Error, could not read propagator from file %s\n", filename);
exit(102);
}
if(N_Jacobi > 0) {
fprintf(stdout, "# [] Jacobi smearing propagator no. %d with paramters N_Jacobi=%d, kappa_Jacobi=%f\n",
is, N_Jacobi, kappa_Jacobi);
#ifdef OPENMP
Jacobi_Smearing_Step_one_Timeslice_threads(g_gauge_field, g_spinor_field[n_s*n_c+is], work, N_Jacobi, kappa_Jacobi);
#else
for(c=0; c<N_Jacobi; c++) {
Jacobi_Smearing_Step_one_Timeslice(g_gauge_field, g_spinor_field[n_s*n_c+is], work, kappa_Jacobi);
}
#endif
}
// } else { // of if do_gt == 0
// // apply gt
// apply_gt_prop(gauge_trafo, g_spinor_field[n_s*n_c+is], is/n_c, is%n_c, 4, filename_prefix, g_source_location);
// } // of if do_gt == 0
}
/******************************************************
* contractions
*
* REMEMBER:
*
* uprop = S_u
* dprop = S_seq
* fp1 = C Gamma_1 S_u
* fp2 = C Gamma_1 S_u C Gamma_2
* fp3 = S_u C Gamma_2
* fp4 = C Gamma_1 S_seq
* Gamma_1 = gamma_mu (always multiplied from the left)
* Gamma_2 = gamma-5 (always multiplied from the right)
******************************************************/
#ifdef OPENMP
omp_set_num_threads(g_num_threads);
#pragma omp parallel private (ix,icomp,threadid) \
firstprivate (fermion_type,gamma_component,connq,\
gamma_component_sign,VOL3,g_spinor_field,fp1,fp2,fp3,fpaux,fp4,uprop,dprop,sp1,sp2,timeslice)
// shared (num_component)
{
threadid = omp_get_thread_num();
#else
threadid = 0;
#endif
for(ix=threadid; ix<VOL3; ix+=g_num_threads)
{
// assign the propagators
_assign_fp_point_from_field(uprop[threadid], g_spinor_field, ix);
_assign_fp_point_from_field(dprop[threadid], g_spinor_field+n_s*n_c, ix);
// flavor rotation for twisted mass fermions
if(fermion_type == _TM_FERMION) {
_fp_eq_rot_ti_fp(fp1[threadid], uprop[threadid], +1, fermion_type, fp2[threadid]);
_fp_eq_fp_ti_rot(uprop[threadid], fp1[threadid], +1, fermion_type, fp2[threadid]);
_fp_eq_rot_ti_fp(fp1[threadid], dprop[threadid], +1, fermion_type, fp2[threadid]);
_fp_eq_fp_ti_rot(dprop[threadid], fp1[threadid], -1, fermion_type, fp2[threadid]);
}
if(do_gt) {
// up propagator
_fp_eq_cm_ti_fp(fp1[threadid], gauge_trafo+18*(timeslice*VOL3+ix), uprop[threadid]);
_fp_eq_fp_ti_cm_dagger(uprop[threadid], gauge_trafo+18*(timeslice*VOL3+ix), fp1[threadid]);
// sequential propagator
_fp_eq_cm_ti_fp(fp1[threadid], gauge_trafo+18*(timeslice*VOL3+ix), dprop[threadid]);
_fp_eq_fp_ti_cm_dagger(dprop[threadid], gauge_trafo+18*(timeslice*VOL3+ix), fp1[threadid]);
}
// test: print fermion propagator point
/*
fprintf(stdout, "# uprop[threadid]:\n");
printf_fp(uprop[threadid], "uprop[threadid]", stdout);
fprintf(stdout, "# dprop[threadid]:\n");
printf_fp(dprop[threadid], "dprop[threadid]", stdout);
*/
/*
double fp_in_base[32];
int mu;
// _project_fp_to_basis(fp_in_base, uprop[threadid], 0);
_project_fp_to_basis(fp_in_base, dprop[threadid], 0);
fprintf(stdout, "# [] t=%3d; ix=%6d\n", timeslice, ix);
for(mu=0;mu<16;mu++) {
fprintf(stdout, "\t%3d%16.7e%16.7e\n", mu, fp_in_base[2*mu], fp_in_base[2*mu+1]);
}
*/
for(icomp=0; icomp<num_component; icomp++) {
_sp_eq_zero( connq[ix*num_component+icomp]);
/******************************************************
* prepare fermion propagators
******************************************************/
_fp_eq_zero(fp1[threadid]);
_fp_eq_zero(fp2[threadid]);
_fp_eq_zero(fp3[threadid]);
_fp_eq_zero(fp4[threadid]);
_fp_eq_zero(fpaux[threadid]);
// fp1[threadid] = C Gamma_1 x S_u = g0 g2 Gamma_1 S_u
_fp_eq_gamma_ti_fp(fp1[threadid], gamma_component[0][icomp], uprop[threadid]);
_fp_eq_gamma_ti_fp(fpaux[threadid], 2, fp1[threadid]);
_fp_eq_gamma_ti_fp(fp1[threadid], 0, fpaux[threadid]);
// fp2[threadid] = C Gamma_1 x S_u x C Gamma_2 = fp1[threadid] x g0 g2 Gamma_2
_fp_eq_fp_ti_gamma(fp2[threadid], 0, fp1[threadid]);
_fp_eq_fp_ti_gamma(fpaux[threadid], 2, fp2[threadid]);
_fp_eq_fp_ti_gamma(fp2[threadid], gamma_component[1][icomp], fpaux[threadid]);
// fp3[threadid] = S_u x C Gamma_2 = uprop[threadid] x g0 g2 Gamma_2
_fp_eq_fp_ti_gamma(fp3[threadid], 0, uprop[threadid]);
_fp_eq_fp_ti_gamma(fpaux[threadid], 2, fp3[threadid]);
_fp_eq_fp_ti_gamma(fp3[threadid], gamma_component[1][icomp], fpaux[threadid]);
// fp4[threadid] = C Gamma_1 x S_seq = g0 g2 Gamma_1 dprop[threadid]
_fp_eq_gamma_ti_fp(fp4[threadid], gamma_component[0][icomp], dprop[threadid]);
_fp_eq_gamma_ti_fp(fpaux[threadid], 2, fp4[threadid]);
_fp_eq_gamma_ti_fp(fp4[threadid], 0, fpaux[threadid]);
/*
char name[20];
sprintf(name, "fp1[%d,%d,%d,%d]", timeslice, ix, icomp, threadid);
printf_fp(fp1[threadid], name, stdout);
sprintf(name, "fp2[%d,%d,%d,%d]", timeslice, ix, icomp, threadid);
printf_fp(fp2[threadid], name, stdout);
sprintf(name, "fp3[%d,%d,%d,%d]", timeslice, ix, icomp, threadid);
printf_fp(fp3[threadid], name, stdout);
sprintf(name, "fp4[%d,%d,%d,%d]", timeslice, ix, icomp, threadid);
printf_fp(fp4[threadid], name, stdout);
*/
/*
sprintf(name, "uprop[%d,%d,%d,%d]", timeslice, ix, icomp, threadid);
printf_fp(uprop[threadid], name, stdout);
sprintf(name, "dprop[%d,%d,%d,%d]", timeslice, ix, icomp, threadid);
printf_fp(dprop[threadid], name, stdout);
*/
/*
double fp_in_base[4][32];
int mu;
_project_fp_to_basis(fp_in_base[0], fp1[threadid], 0);
_project_fp_to_basis(fp_in_base[1], fp2[threadid], 0);
_project_fp_to_basis(fp_in_base[2], fp3[threadid], 0);
_project_fp_to_basis(fp_in_base[3], fp4[threadid], 0);
fprintf(stdout, "# [] t=%3d; ix=%6d\n", timeslice, ix);
for(mu=0;mu<16;mu++) {
fprintf(stdout, "\t%3d%16.7e%16.7e%16.7e%16.7e%16.7e%16.7e%16.7e%16.7e\n", mu,
fp_in_base[0][2*mu], fp_in_base[0][2*mu+1],
fp_in_base[1][2*mu], fp_in_base[1][2*mu+1],
fp_in_base[2][2*mu], fp_in_base[2][2*mu+1],
fp_in_base[3][2*mu], fp_in_base[3][2*mu+1]);
}
*/
// (1)
// reduce
_fp_eq_zero(fpaux[threadid]);
_fp_eq_fp_eps_contract13_fp(fpaux[threadid], fp2[threadid], uprop[threadid]);
// reduce to spin propagator
_sp_eq_zero( sp1[threadid] );
_sp_eq_fp_del_contract23_fp(sp1[threadid], dprop[threadid], fpaux[threadid]);
// (2)
// reduce
_fp_eq_zero(fpaux[threadid]);
_fp_eq_fp_eps_contract13_fp(fpaux[threadid], fp1[threadid], fp3[threadid]);
// reduce to spin propagator
_sp_eq_zero( sp2[threadid] );
_sp_eq_fp_del_contract24_fp(sp2[threadid], dprop[threadid], fpaux[threadid]);
// add and assign
_sp_pl_eq_sp(sp1[threadid], sp2[threadid]);
_sp_eq_sp_ti_re(sp2[threadid], sp1[threadid], -gamma_component_sign[icomp]);
_sp_pl_eq_sp( connq[ix*num_component+icomp], sp2[threadid]);
// (3)
// reduce
_fp_eq_zero(fpaux[threadid]);
_fp_eq_fp_eps_contract13_fp(fpaux[threadid], fp4[threadid], uprop[threadid]);
// reduce to spin propagator
_sp_eq_zero( sp1[threadid] );
_sp_eq_fp_del_contract23_fp(sp1[threadid], fp3[threadid], fpaux[threadid]);
// (4)
// reduce
_fp_eq_zero(fpaux[threadid]);
_fp_eq_fp_eps_contract13_fp(fpaux[threadid], fp1[threadid], dprop[threadid]);
// reduce to spin propagator
_sp_eq_zero( sp2[threadid] );
_sp_eq_fp_del_contract24_fp(sp2[threadid], fp3[threadid], fpaux[threadid]);
// add and assign
_sp_pl_eq_sp(sp1[threadid], sp2[threadid]);
_sp_eq_sp_ti_re(sp2[threadid], sp1[threadid], -gamma_component_sign[icomp]);
_sp_pl_eq_sp( connq[ix*num_component+icomp], sp2[threadid]);
// (5)
// reduce
_fp_eq_zero(fpaux[threadid]);
_fp_eq_fp_eps_contract13_fp(fpaux[threadid], fp4[threadid], fp3[threadid]);
// reduce to spin propagator
_sp_eq_zero( sp1[threadid] );
_sp_eq_fp_del_contract34_fp(sp1[threadid], uprop[threadid], fpaux[threadid]);
//fprintf(stdout, "# sp1[threadid]:\n");
//printf_sp(sp1[threadid], "sp1[threadid]",stdout);
// (6)
// reduce
_fp_eq_zero(fpaux[threadid]);
_fp_eq_fp_eps_contract13_fp(fpaux[threadid], fp2[threadid], dprop[threadid]);
// reduce to spin propagator
_sp_eq_zero( sp2[threadid] );
_sp_eq_fp_del_contract34_fp(sp2[threadid], uprop[threadid], fpaux[threadid]);
//fprintf(stdout, "# sp2[threadid]:\n");
//printf_sp(sp2[threadid], "sp2[threadid]",stdout);
// add and assign
_sp_pl_eq_sp(sp1[threadid], sp2[threadid]);
_sp_eq_sp_ti_re(sp2[threadid], sp1[threadid], -gamma_component_sign[icomp]);
_sp_pl_eq_sp( connq[ix*num_component+icomp], sp2[threadid]);
} // of icomp
} // of ix
#ifdef OPENMP
}
#endif
/***********************************************
* finish calculation of connq
***********************************************/
if(g_propagator_bc_type == 0) {
// multiply with phase factor
fprintf(stdout, "# [] multiplying timeslice %d with boundary phase factor\n", timeslice);
ir = (timeslice - sx0 + T_global) % T_global;
w1.re = cos( 3. * M_PI*(double)ir / (double)T_global );
w1.im = sin( 3. * M_PI*(double)ir / (double)T_global );
for(ix=0;ix<num_component*VOL3;ix++) {
_sp_eq_sp(sp1[0], connq[ix] );
_sp_eq_sp_ti_co( connq[ix], sp1[0], w1);
}
} else if (g_propagator_bc_type == 1) {
// multiply with step function
if(timeslice < sx0) {
fprintf(stdout, "# [] multiplying timeslice %d with boundary step function\n", timeslice);
for(ix=0;ix<num_component*VOL3;ix++) {
_sp_eq_sp(sp1[0], connq[ix] );
_sp_eq_sp_ti_re( connq[ix], sp1[0], -1.);
}
}
}
if(write_ascii) {
sprintf(filename, "%s_x.%.4d.t%.2dx%.2dy%.2dz%.2d.qx%.2dqy%.2dqz%.2d.ascii", outfile_prefix, Nconf, sx0, sx1, sx2, sx3,
rel_momentum_list[imom][0],rel_momentum_list[imom][1],rel_momentum_list[imom][2]);
write_contraction2( connq[0][0], filename, num_component*g_sv_dim*g_sv_dim, VOL3, 1, append);
}
/******************************************************************
* Fourier transform
******************************************************************/
items = 2 * num_component * g_sv_dim * g_sv_dim * VOL3;
bytes = sizeof(double);
memcpy(in, connq[0][0], items * bytes);
ir = num_component * g_sv_dim * g_sv_dim;
#ifdef OPENMP
fftwnd_threads(g_num_threads, plan_p, ir, in, ir, 1, (fftw_complex*)(connq[0][0]), ir, 1);
#else
fftwnd(plan_p, ir, in, ir, 1, (fftw_complex*)(connq[0][0]), ir, 1);
#endif
// add phase factor from the source location
iix = 0;
for(x1=0;x1<LX;x1++) {
q[0] = (double)x1 / (double)LX;
for(x2=0;x2<LY;x2++) {
q[1] = (double)x2 / (double)LY;
for(x3=0;x3<LZ;x3++) {
q[2] = (double)x3 / (double)LZ;
phase = 2. * M_PI * ( q[0]*sx1 + q[1]*sx2 + q[2]*sx3 );
w1.re = cos(phase);
w1.im = sin(phase);
for(icomp=0; icomp<num_component; icomp++) {
_sp_eq_sp(sp1[0], connq[iix] );
_sp_eq_sp_ti_co( connq[iix], sp1[0], w1) ;
iix++;
}
}}} // of x3, x2, x1
// write to file
/*
sprintf(filename, "%s_q.%.4d.t%.2dx%.2dy%.2dz%.2d.qx%.2dqy%.2dqz%.2d", outfile_prefix, Nconf, sx0, sx1, sx2, sx3,
rel_momentum_list[imom][0],rel_momentum_list[imom][1],rel_momentum_list[imom][2]);
sprintf(contype, "2-pt. function, (t,Q_1,Q_2,Q_3)-dependent, source_timeslice = %d, rel. momentum = (%d, %d. %d)", sx0,
rel_momentum_list[imom][0],rel_momentum_list[imom][1],rel_momentum_list[imom][2]);
write_lime_contraction_timeslice(connq[0][0], filename, 64, num_component*g_sv_dim*g_sv_dim, contype, Nconf, 0, &connq_checksum, timeslice);
*/
if(write_ascii) {
sprintf(filename, "%s_q.%.4d.t%.2dx%.2dy%.2dz%.2d.qx%.2dqy%.2dqz%.2d.ascii", outfile_prefix, Nconf, sx0, sx1, sx2, sx3,
rel_momentum_list[imom][0],rel_momentum_list[imom][1],rel_momentum_list[imom][2]);
write_contraction2(connq[0][0],filename, num_component*g_sv_dim*g_sv_dim, VOL3, 1, append);
}
/***********************************************
* save output data in connq_out
***********************************************/
for(isnk=0;isnk<snk_momentum_no;isnk++) {
ix = g_ipt[0][snk_momentum_list[isnk][0]][snk_momentum_list[isnk][1]][snk_momentum_list[isnk][2]];
fprintf(stdout, "# [] sink momentum (%d, %d, %d) -> index %d\n", snk_momentum_list[isnk][0], snk_momentum_list[isnk][1], snk_momentum_list[isnk][2], ix);
for(icomp=0;icomp<num_component; icomp++) {
x1 = ( (imom * snk_momentum_no + isnk ) * num_component + icomp) * T + timeslice;
_sp_eq_sp(connq_out[ x1 ], connq[ix*num_component+icomp]);
}
}
/***********************************************
* calculate connt