void read_multiselect_twopt(
char filename[80], /* the name of the input correlator file */
int nfile, /* Number of output files */
twopt_oneselect *fp /* Selection parameter sets */
)
{
FILE *corrfp ;
FILE *dumpfp[MAX_NO_FILE];
complex *corr;
size_t nobj, ngot ;
const int32type magic_number = 44451189 ;
const int32type version_number = 1 ; /** update this flag when the data format changes ***/
int i ;
int ifile ;
int t ;
int jselect;
size_t name_len = 80 ;
size_t howmany ;
size_t where,skip,corr_stride,base;
int check_sum ;
int check_sum_in ;
int dim ;
int byte_rev_flag = do_nothing ;
int nt,no_q_values,no_spectator,no_zonked,no_oper,nocopies;
int32type *q_momstore;
int zonked_pt; /* zonked quark index */
int spect_pt; /* spectator quark index */
int q_pt; /* momentum index */
int oper_pt; /* operator index */
int copy_pt; /* copy index */
Real wt; /* weight */
complex *corr_tmp; /* temporary storage for correlator */
char *nextfield,*cfgid; /* Identifying characters for binary
correlator file */
char myname[] = "read_multiselect_twopt";
/* Memory for some header information ***/
#define HEADER_DIM_WRITE_CORR 11
size_t header_size = (size_t) HEADER_DIM_WRITE_CORR ;
int32type header_data[HEADER_DIM_WRITE_CORR] ;
#undef HEADER_DIM_WRITE_CORR
/**** open the ASCII output files for APPENDING *****/
for(ifile = 0; ifile < nfile; ifile++)
{
if( (dumpfp[ifile] = fopen(fp[ifile].filename,"a")) == NULL )
{
printf("Could not open the file %s\n",fp[ifile].filename);
exit(1);
}
}
/**** open the binary correlator file ******/
if( (corrfp = fopen(filename ,"rb")) == NULL )
{
printf("%s ERROR: Could not open the file %s\n",
myname,filename);
exit(1);
}
/** read the header information ***/
if( fread(header_data,sizeof(int32type),header_size,corrfp) != header_size )
{
printf("%s Error %d reading the HEADER from %s\n",
myname,errno,filename);
exit(1);
}
/*** unpack and check the header ******/
/***** check the header ****/
if( header_data[0] != magic_number )
{
byte_rev_flag = do_byte_rev ;
}
if( byte_rev_flag == do_byte_rev )
{
byte_rev_array( header_data, header_size);
}
/***** check the header ****/
if( header_data[0] != magic_number )
{
printf("%s ERROR: magic number mismatch between code %x and file %x\n",
myname,magic_number, header_data[0] );
exit(1);
}
if( header_data[1] != version_number )
{
printf("%s ERROR: version number mismatch between code %d and file %d\n",
myname,version_number, header_data[1]);
exit(1);
}
nt = header_data[2] ;
check_sum_in = header_data[3] ;
no_q_values = header_data[4] ;
no_spectator = header_data[5] ;
no_zonked = header_data[6] ;
no_oper = header_data[7] ;
dim = header_data[8] ;
/** hl_flag = header_data[9] ; **/
nocopies = header_data[10] ;
/*** read the external q--momentum from the file ***/
howmany = (size_t) 3*(no_q_values) ;
if( ( q_momstore = (int32type *)calloc( howmany , sizeof(int32type)) ) == NULL)
{
printf("%s Can't malloc q-momentum \n",myname);
exit(1);
}
if( fread(q_momstore,sizeof(int32type),howmany,corrfp) != howmany )
{
printf("%s: error %d reading the Q momentum table from %s\n",
myname,errno,filename);
exit(1);
}
if( byte_rev_flag == do_byte_rev )
{
byte_rev_array(q_momstore , (int) howmany );
}
/** read the two point functions from disk *****/
nobj = (size_t) nt ;
if( (corr = (complex *)calloc( nobj , sizeof(complex) ) ) == NULL)
{
printf("%s: Can't calloc corr, nobj = %d\n",myname,nobj);
exit(1);
}
if( (corr_tmp = (complex *)calloc( nobj , sizeof(complex) ) ) == NULL)
{
printf("There was an error in allocating corr_tmp, nobj = %d\n",nobj);
exit(1);
}
base = ftell(corrfp);
/* Iterate over sets of selection parameters, reading data for each
and accumulating results in the correlation array */
for(ifile = 0; ifile < nfile; ifile++)
{
for(t = 0; t < nt; t++)
{
corr[t].real = corr[t].imag = 0.;
}
for(jselect = 0; jselect < fp[ifile].nselect; jselect++)
{
/* Unload selection parameters */
zonked_pt = fp[ifile].select[jselect].other;
spect_pt = fp[ifile].select[jselect].spect;
q_pt = fp[ifile].select[jselect].mom;
oper_pt = fp[ifile].select[jselect].oper;
copy_pt = fp[ifile].select[jselect].copy;
wt = fp[ifile].select[jselect].wt;
/** locate the required correlator on disk **/
corr_stride = TWOPT_FORM_WHERE(nt,no_zonked-1 ,no_spectator-1,
no_q_values-1, no_oper-1) ; ;
where = corr_stride*copy_pt +
TWOPT_FORM_WHERE(0,zonked_pt ,spect_pt,q_pt, oper_pt) ;
skip = where*sizeof(complex);
if(fseek(corrfp,base+skip,SEEK_SET) != 0)
{
printf("%s: Error %d seeking the two point function on %s\n",
myname,errno,filename);
exit(1);
}
/** read the two point function from disk *****/
if( (ngot = fread(corr_tmp,sizeof(complex),nobj,corrfp)) != nobj )
{
printf("%s: error %d reading %d form factor data items from %s. Got %d.\n",
myname,errno,nobj,filename,ngot);
printf("Error after seeking %d bytes\n",base+skip);
exit(1);
}
if( byte_rev_flag == do_byte_rev )
{
byte_rev_array((int32type*) corr_tmp, nobj*2 );
}
/* Accumulate result in correlation array */
for(t = 0; t < nt; t ++)
{
corr[t].real += corr_tmp[t].real*wt;
corr[t].imag += corr_tmp[t].imag*wt;
}
} /* jselect */
/* Write the result to the ASCII file */
/* Use the last field after the last period in the filename to
identify the data set */
for(nextfield=filename; nextfield!=(char *)NULL+1;
nextfield=strstr(nextfield,".")+1)cfgid = nextfield;
for(t = 0; t < nt; t++)
fprintf(dumpfp[ifile],"%2d %12.6g %12.6g %% %s\n",
t,corr[t].real,corr[t].imag,cfgid);
} /* ifile */
/*** close the file ****/
if( fclose(corrfp) != 0 )
{
printf("There was an error during the closing of %s \n",filename);
exit(1);
}
/**** close the ASCII output files *****/
for(ifile = 0; ifile < nfile; ifile++)
{
if( fclose(dumpfp[ifile]) != 0 )
{
printf("Error closing the file %s\n",fp[ifile].filename);
exit(1);
}
}
free(corr_tmp);
}
void read_prop_twopt(
complex **corr, /* the two point correlators */
int **corr_oper_list, /* List of operator numbers read */
int **corr_copy_list, /* List of copy numbers read */
char filename[80], /* the name of the disk file */
int32type **q_momstore, /* list of momenta */
int *hl_flag, /* flag identifying type of correlator */
int *no_k_one , /* the number of kappa values */
int *no_k_two, /* the number of kappa values */
int *number_of_operators, /* number of operators */
int *nt , /* time values */
int *no_q_values, /* momentum values */
int *nocopies /* rotations */
)
{
size_t nobj ;
FILE *fp ;
int32type magic_number = 44451189 ;
int32type version_number = 1 ; /** update this flag when the data format changes ***/
int i ;
size_t name_len = 80 ;
size_t howmany ;
int check_sum ;
int check_sum_in ;
int dim ;
int byte_rev_flag = do_nothing ;
/* Memory for some header information ***/
#define HEADER_DIM_WRITE_CORR 11
size_t header_size = (size_t) HEADER_DIM_WRITE_CORR ;
int32type header_data[HEADER_DIM_WRITE_CORR] ;
#undef HEADER_DIM_WRITE_CORR
/**** open the file ******/
if( (fp = fopen(filename ,"rb")) == NULL )
{
printf("ERROR::read_prop_form::Could not open the file %s\n",filename);
exit(1);
}
/** read the header information ***/
if( fread(header_data,sizeof(int32type),header_size,fp) != header_size )
{
printf("There was an error during the reading of the two point (propagating) HEADER to %s\n",
filename);
exit(1);
}
/*** unpack and check the header ******/
/***** check the header ****/
if( header_data[0] != magic_number )
{
printf("ERROR: magic number mismatch between code %d and file %d\n",magic_number, header_data[0] );
printf("I will try byte reversing the data\n");
byte_rev_flag = do_byte_rev ;
}
if( byte_rev_flag == do_byte_rev )
{
byte_rev_array( header_data, header_size);
}
/***** check the header ****/
if( header_data[0] != magic_number )
{
printf("ERROR: magic number mismatch between code %d and file %d\n",magic_number, header_data[0] );
exit(1);
}
if( header_data[1] != version_number )
{
printf("ERROR: version number mismatch between code %d and file %d\n",version_number, header_data[1]);
exit(1);
}
*nt = header_data[2] ;
check_sum_in = header_data[3] ;
*no_q_values = header_data[4] ;
*no_k_one = header_data[5] ;
*no_k_two = header_data[6] ;
*number_of_operators = header_data[7] ;
dim = header_data[8] ;
*hl_flag = header_data[9] ;
*nocopies = header_data[10] ;
/*** read the external q--momentum from the file ***/
howmany = (size_t) 3*(*no_q_values) ;
if( ( (*q_momstore) = (int32type *)calloc( howmany , sizeof(int32type)) ) == NULL)
{
printf("There was an error in allocating q-momentum \n");
exit(1);
}
if( fread((*q_momstore),sizeof(int32type),howmany,fp) != howmany )
{
printf("There was an error during the reading of the Q momentum table to %s\n",
filename);
exit(1);
}
if( byte_rev_flag == do_byte_rev )
{
byte_rev_array((*q_momstore) , (int) howmany );
}
/** read the two point functions from disk *****/
nobj = (size_t) dim ;
if( ((*corr) = (complex *)calloc( nobj , sizeof(complex) ) ) == NULL)
{
printf("There was an error in allocating the two point function, nobj = %d\n",nobj);
exit(1);
}
if( fread((*corr),sizeof(complex),nobj,fp) != nobj )
{
printf("There was an error during the reading of he two point finctions from %s\n",
filename);
exit(1);
}
if( byte_rev_flag == do_byte_rev )
{
byte_rev_array((int32type*) (*corr), dim*2 );
}
/*** close the file ****/
if( fclose(fp) != 0 )
{
printf("There was an error during the closing of %s \n",filename);
exit(1);
}
/*** calculate the checksum of the form factors ****/
check_sum = bsd_sum((char*)(*corr), sizeof(complex)*dim) ;
if( check_sum != check_sum_in )
{
printf("ERROR: checksum mismatch bewteen the file %d and the code %d \n",check_sum,check_sum_in) ;
printf("ERROR: checksum mismatch bewteen the file %d and the code %d \n",check_sum,check_sum_in) ;
printf("ERROR: checksum mismatch bewteen the file %d and the code %d \n",check_sum,check_sum_in) ;
/** exit(1) ; ****/
}
/* Create operator list */
if( ((*corr_oper_list) = (int *)calloc( *number_of_operators, sizeof(int) ) ) == NULL)
{
printf("There was an error in allocating the operator list\n");
exit(1);
}
for(i = 0; i < *number_of_operators; i++)
(*corr_oper_list)[i] = i;
/* Create copies list */
if( ((*corr_copy_list) = (int *)calloc( *nocopies, sizeof(int) ) ) == NULL)
{
printf("There was an error in allocating the copies list\n");
exit(1);
}
for(i = 0; i < *nocopies; i++)
(*corr_copy_list)[i] = i;
printf("I have read the two point functions from the file %s\n",filename);
}
void read_propagating_form_corr(
complex **corr, /* the two point correlators */
int **corr_oper_list, /* List of operator numbers read */
int **corr_copy_list, /* List of copy numbers read */
int32type **p_momstore, /* list of B meson momenta */
int32type **q_momstore, /* list of momentum transfers */
int *nt, /* time values */
int *no_p_values, /* momentum values */
int *no_q_values, /* momentum values */
int *no_oper, /* number of operators */
int *no_spectator, /* the number of kappa values */
int *no_sequential, /* the number of kappa values */
int *no_zonked , /* the number of kappa values */
int *hl_flag, /* flag identifying type of correlator */
char filename[80], /* the name of the disk file */
int *nocopies /* rotations */
)
{
char myname[] = "read_propagating_form_corr";
FILE *fp ;
size_t nobj ;
const int32type magic_number = 14567332 ;
const int32type version_number = 1 ; /** update this flag when the data format changes ***/
int i ;
size_t name_len = 80 ;
size_t howmany ;
int check_sum ;
int check_sum_in ;
int dim ;
int byte_rev_flag = do_nothing ;
/* Memory for some header information ***/
#define HEADER_DIM_WRITE_CORR 13
size_t header_size = (size_t) HEADER_DIM_WRITE_CORR ;
int32type header_data[HEADER_DIM_WRITE_CORR] ;
/**** open the file ******/
if( (fp = fopen(filename ,"rb")) == NULL )
{
printf("Could not open the file %s\n",filename);
exit(1);
}
/** read the header information ***/
if( fread(header_data,sizeof(int32type),header_size,fp) != header_size )
{
printf("%s: error %d reading the form factor HEADER from %s\n",
myname,errno,filename);
exit(1);
}
/***** check the header ****/
if( header_data[0] != magic_number )
{
printf("%s: ERROR: magic number mismatch between code %d and file %d\n",
myname,magic_number, header_data[0] );
printf("I will try byte reversing the data\n");
byte_rev_flag = do_byte_rev ;
}
if( byte_rev_flag == do_byte_rev )
{
byte_rev_array( header_data, header_size);
}
if( header_data[0] != magic_number )
{
printf("%s: ERROR: magic number mismatch between code %d and file %d\n",
myname,magic_number, header_data[0] );
exit(1);
}
if( header_data[1] != version_number )
{
printf("%s: ERROR: version number mismatch between code %d and file %d\n",
myname,version_number, header_data[1]);
exit(1);
}
*nt = header_data[2] ;
check_sum_in = header_data[3] ;
*no_p_values = header_data[4] ;
*no_q_values = header_data[5] ;
*no_oper = header_data[6] ;
*no_spectator = header_data[7] ;
*no_zonked = header_data[8] ;
dim = header_data[9] ;
*hl_flag = header_data[10] ;
*no_sequential = header_data[11] ;
*nocopies = header_data[12] ;
/******* read some more data from the file **********/
/*** read the external momentum from the file ***/
howmany = (size_t) 3*(*no_q_values) ;
if( ( (*q_momstore) = (int32type *)calloc( howmany , sizeof(int32type)) ) == NULL)
{
printf("%s: There was an error in allocating q-momentum \n",myname);
exit(1);
}
if( fread((*q_momstore) ,sizeof(int32type),howmany,fp) != howmany )
{
printf("%s: error %d reading the q-momentum table from %s\n",
myname,errno,filename);
exit(1);
}
if( byte_rev_flag == do_byte_rev )
{
byte_rev_array((*q_momstore) , (int) howmany );
}
/*** read the external momentum from the file ***/
howmany = (size_t) 3*(*no_p_values) ;
if( ( (*p_momstore) = (int32type *)calloc( howmany , sizeof(int32type)) ) == NULL)
{
printf("%s: There was an error in allocating p--momentum \n",myname);
exit(1);
}
if( fread((*p_momstore) ,sizeof(int32type),howmany,fp) != howmany )
{
printf("%s: error %d reading the p-momentum table from %s\n",
myname,errno,filename);
exit(1);
}
if( byte_rev_flag == do_byte_rev )
{
byte_rev_array((*p_momstore) , (int) howmany );
}
/*** reserve memory for the three point function ****/
nobj = (size_t) dim ;
if( ((*corr) = (complex *)calloc( nobj , sizeof(complex) ) ) == NULL)
{
printf("%s: There was an error in allocating the three point function, nobj = %d\n",
myname,nobj);
exit(1);
}
/** read the three point function to disk *****/
if( fread((*corr),sizeof(complex),nobj,fp) != nobj )
{
printf("%s: error %d reading the form factor data from %s\n",
myname,errno,filename);
exit(1);
}
if( byte_rev_flag == do_byte_rev )
{
byte_rev_array((int32type*) (*corr), dim*2 );
}
/*** calculate the checksum of the form factors ****/
check_sum = bsd_sum((char*)(*corr), sizeof(complex)*dim) ;
if( check_sum != check_sum_in )
{
printf("%s: ERROR: checksum mismatch bewteen the file %d and the code %d \n",
myname,check_sum,check_sum_in) ;
printf("%s: ERROR: checksum mismatch bewteen the file %d and the code %d \n",
myname,check_sum,check_sum_in) ;
printf("%s: ERROR: checksum mismatch bewteen the file %d and the code %d \n",
myname,check_sum,check_sum_in) ;
/** exit(1) ; ****/
}
/*** close the file ****/
if( fclose(fp) != 0 )
{
printf("%s: error %d closing %s \n",myname,errno,filename);
exit(1);
}
/* Create operator list */
if( ((*corr_oper_list) = (int *)calloc( *no_oper, sizeof(int) ) ) == NULL)
{
printf("%s: There was an error in allocating the operator list\n",
myname);
exit(1);
}
for(i = 0; i < *no_oper; i++)
(*corr_oper_list)[i] = i;
/* Create copy list */
if( ((*corr_copy_list) = (int *)calloc( *nocopies, sizeof(int) ) ) == NULL)
{
printf("%s: There was an error in allocating the copy list\n",
myname);
exit(1);
}
for(i = 0; i < *nocopies; i++)
(*corr_copy_list)[i] = i;
printf("I have read propagating three point functions from the file %s\n",filename);
}
/* Same as above, but reads data for only one B meson momentum AND
only one spectator kappa */
void read_3pt_onemom_onespect(
complex **corr, /* the two point correlators */
int **corr_oper_list, /* List of operator numbers read */
int **corr_copy_list, /* List of copy numbers read */
int32type **p_momstore, /* list of B meson momenta */
int32type **q_momstore, /* list of momentum transfers */
int *nt, /* time values */
int *no_p_values, /* momentum values */
int *no_q_values, /* momentum values */
int *no_oper, /* number of operators */
int *no_spectator, /* the number of kappa values */
int *no_sequential, /* the number of kappa values */
int *no_zonked , /* the number of kappa values */
int *hl_flag, /* flag identifying type of correlator */
char filename[80], /* the name of the disk file */
int *nocopies, /* rotations */
int p_mom_select, /* Momentum index selected */
int spect_select /* Spectator kappa index selected */
)
{
FILE *fp ;
size_t nobj ;
const int32type magic_number = 14567332 ;
const int32type version_number = 1 ; /** update this flag when the data format changes ***/
int i ;
size_t name_len = 80 ;
size_t howmany ;
int check_sum ;
int check_sum_in ;
int dim ;
int byte_rev_flag = do_nothing ;
size_t base,skip;
int corr_stride_copy, corr_stride_mom_op, corr_stride_spect_op;
int copy_pt,oper_pt,q_pt;
int where,where_ram;
char myname[] = "read_3pt_onemom";
/* Memory for some header information ***/
#define HEADER_DIM_WRITE_CORR 13
size_t header_size = (size_t) HEADER_DIM_WRITE_CORR ;
int32type header_data[HEADER_DIM_WRITE_CORR] ;
/**** open the file ******/
if( (fp = fopen(filename ,"rb")) == NULL )
{
printf("Could not open the file %s\n",filename);
exit(1);
}
/** read the header information ***/
if( fread(header_data,sizeof(int32type),header_size,fp) != header_size )
{
printf("%s: error %s reading the form factor HEADER from %s\n",
myname,errno,filename);
exit(1);
}
/***** check the header ****/
if( header_data[0] != magic_number )
{
printf("%s: ERROR: magic number mismatch between code %d and file %d\n",
myname,magic_number, header_data[0] );
printf("I will try byte reversing the data\n");
byte_rev_flag = do_byte_rev ;
}
if( byte_rev_flag == do_byte_rev )
{
byte_rev_array( header_data, header_size);
}
if( header_data[0] != magic_number )
{
printf("%s: ERROR: magic number mismatch between code %d and file %d\n",
myname,magic_number, header_data[0] );
exit(1);
}
if( header_data[1] != version_number )
{
printf("%s: ERROR: version number mismatch between code %d and file %d\n",
myname,version_number, header_data[1]);
exit(1);
}
*nt = header_data[2] ;
check_sum_in = header_data[3] ;
*no_p_values = header_data[4] ;
*no_q_values = header_data[5] ;
*no_oper = header_data[6] ;
*no_spectator = header_data[7] ;
*no_zonked = header_data[8] ;
dim = header_data[9] ;
*hl_flag = header_data[10] ;
*no_sequential = header_data[11] ;
*nocopies = header_data[12] ;
/******* read some more data from the file **********/
/*** read the external momentum from the file ***/
howmany = (size_t) 3*(*no_q_values) ;
if( ( (*q_momstore) = (int32type *)calloc( howmany , sizeof(int32type)) ) == NULL)
{
printf("%s: There was an error in allocating q-momentum \n",myname);
exit(1);
}
if( fread((*q_momstore) ,sizeof(int32type),howmany,fp) != howmany )
{
printf("%s: error %d during reading the q-momentum table from %s\n",
myname,errno,filename);
exit(1);
}
if( byte_rev_flag == do_byte_rev )
{
byte_rev_array((*q_momstore) , (int) howmany );
}
/*** read the external momentum from the file ***/
howmany = (size_t) 3*(*no_p_values) ;
if( ( (*p_momstore) = (int32type *)calloc( howmany , sizeof(int32type)) ) == NULL)
{
printf("%s: There was an error in allocating p--momentum \n",myname);
exit(1);
}
if( fread((*p_momstore) ,sizeof(int32type),howmany,fp) != howmany )
{
printf("%s: error %d reading the p-momentum table from %s\n",
myname,errno,filename);
exit(1);
}
if( byte_rev_flag == do_byte_rev )
{
byte_rev_array((*p_momstore) , (int) howmany );
}
/*** reserve memory for the three point function ****/
/* REDUCE THE STATED DIMENSION BY THE NUMBER OF P-VALUES AND
THE NUMBER OF SPECTATOR VALUES BECAUSE
WE ARE SELECTING ONLY ONE */
dim /= *no_p_values;
dim /= *no_spectator;
nobj = (size_t) dim ;
if( ((*corr) = (complex *)calloc( nobj , sizeof(complex) ) ) == NULL)
{
printf("%s: There was an error in allocating the three point function, nobj = %d\n",
myname,nobj);
exit(1);
}
/* The indexing is as follows:
linear(t,zonk_pt,seq_pt,spect_pt,q_pt,p_pt,oper_pt,copy) =
t + nt*(zonk_pt + no_zonked*(seq_pt + no_sequential*(spect_pt +
no_spectator*(q_pt + no_q_values*(p_pt +
no_p_values*(oper_pt + no_oper*copy_pt))))))
*/
/* Stride between spectator quark values */
/* linear(0,0,0,spect_pt+1,0,0,0,0) - linear(0,0,0,spect_pt,0,0,0,0) */
corr_stride_spect_op =
(*nt)*(*no_zonked)*(*no_sequential);
/* Get current file pointer location (at beginning of data) */
base = ftell(fp);
/* The spect_pt index is 4th in the corr array, and the momentum
index is 6th so we block on the 1st 3 indices, select the 4th,
iterate explicitly over the 5th, select the 6th and iterate over
the 7th and 8th. */
for(copy_pt = 0; copy_pt < *nocopies; copy_pt++)
for(oper_pt = 0; oper_pt < *no_oper; oper_pt++)
for(q_pt = 0; q_pt < *no_q_values; q_pt++){
/** locate the required correlator in the file corr array **/
where = corr_stride_spect_op*(spect_select +
(*no_spectator)*(q_pt + (*no_q_values)*(p_mom_select +
(*no_p_values)*(oper_pt + (*no_oper)*copy_pt))));
/** locate the required correlator in the RAM corr array **/
/* Because no_spectator = no_p_values = 1 the indexing
is as follows:
linear(t,zonk_pt,seq_pt,spect_pt,q_pt,p_pt,oper_pt,copy) =
t + nt*(zonk_pt + no_zonked*(seq_pt +
no_sequential*(q_pt + no_q_values*(oper_pt + no_oper*copy_pt))))
*/
where_ram = corr_stride_spect_op*(q_pt +
(*no_q_values)*(oper_pt + (*no_oper)*copy_pt));
/** read a portion of the the three point functions from disk *****/
nobj = (size_t) corr_stride_spect_op ;
/* Position the file for reading */
skip = where*sizeof(complex);
fseek(fp,base+skip,SEEK_SET);
/** read the three point function to disk *****/
if( fread(&((*corr)[where_ram]),sizeof(complex),nobj,fp) != nobj )
{
printf("%s: error %d reading the form factor data from %s\n",
myname,errno,filename);
exit(1);
}
if( byte_rev_flag == do_byte_rev )
{
byte_rev_array((int32type*)(&((*corr)[where_ram])), nobj*2 );
}
}
/*** calculate the checksum of the form factors ****/
/** check_sum = bsd_sum((char*)(*corr), sizeof(complex)*dim) ;
if( check_sum != check_sum_in )
{
printf("%s: ERROR: checksum mismatch bewteen the file %d and the code %d \n",
myname,check_sum,check_sum_in) ;
printf("%s: ERROR: checksum mismatch bewteen the file %d and the code %d \n",
myname,check_sum,check_sum_in) ;
printf("%s: ERROR: checksum mismatch bewteen the file %d and the code %d \n",
myname,check_sum,check_sum_in) ;
} **/
/*** close the file ****/
if( fclose(fp) != 0 )
{
printf("%s: error %d closing %s \n",myname,errno,filename);
exit(1);
}
/* Create operator list */
if( ((*corr_oper_list) = (int *)calloc( *no_oper, sizeof(int) ) ) == NULL)
{
printf("%s: There was an error in allocating the operator list\n",
myname);
exit(1);
}
for(i = 0; i < *no_oper; i++)
(*corr_oper_list)[i] = i;
/* Create copy list */
if( ((*corr_copy_list) = (int *)calloc( *nocopies, sizeof(int) ) ) == NULL)
{
printf("%s: There was an error in allocating the copy list\n",myname);
exit(1);
}
for(i = 0; i < *nocopies; i++)
(*corr_copy_list)[i] = i;
/* Now pretend that only one momentum was read from this file */
(*p_momstore)[0] = (*p_momstore)[3*p_mom_select];
(*p_momstore)[1] = (*p_momstore)[3*p_mom_select+1];
(*p_momstore)[2] = (*p_momstore)[3*p_mom_select+2];
printf("I have read three point functions for B momentum %d %d %d and spectator index %d from %s\n",
(*p_momstore)[0],(*p_momstore)[1],
(*p_momstore)[2],spect_select,filename);
}
int main(int argc, char *argv[])
{
FILE *fp ;
int nt,nosmear ;
size_t nobj ;
Real *vary_matrix ;
Real *coeff ;
char vary_out[80] ;
int i ;
const int local_src = 0 ;
char src_name[NAME_LEN] ;
size_t name_len = NAME_LEN ;
char coeff_file[NAME_LEN] ;
int which_source ;
int arg_pt ;
enum which_corr { NOT_SET = -10 , SINGLE_SRC , VARY_SRC} ;
int what_src = NOT_SET ;
int what_fold = NO_TIME_AVERAGE ; /** default is not to average over time ***/
int byte_rev_flag ;
/*********..........**********........*****************/
printf("=============================================================\n");
printf(" Extraction of LS and SS correlators from variational matrix \n");
printf("=============================================================\n");
if( argc < 3 )
{
dump_usage(argv[0]) ;
}
strcpy(vary_out,argv[1]);
which_source = atoi(argv[2]);
/** parse the input arguments *******/
arg_pt = 2 ;
while( arg_pt < argc )
{
if( strcmp(argv[arg_pt],"-s" ) == 0 )
{
if( what_src != NOT_SET ) dump_usage(argv[0]) ;
which_source = atoi(argv[arg_pt + 1]);
arg_pt += 2 ;
what_src = SINGLE_SRC ;
}
else if( strcmp(argv[arg_pt],"-c" ) == 0 )
{
if( what_src != NOT_SET ) dump_usage(argv[0]) ;
strcpy(coeff_file ,argv[arg_pt+1]);
arg_pt += 2 ;
what_src = VARY_SRC ;
}
else if( strcmp(argv[arg_pt],"-fold" ) == 0 )
{
what_fold = AVERAGE_TIME ;
arg_pt += 1 ;
}
else
{
dump_usage(argv[0]);
}
}
/**** open the file and read the header ******/
fp = read_vary_header(vary_out, local_src,which_source,
src_name,&nosmear, &nt,&byte_rev_flag ) ;
printf("The number of timeslices = %d\n",nt);
printf("The number of smearing functions = %d\n",nosmear);
/* reserve memory for the variational matrix *****/
nobj = (size_t) nt*nosmear*nosmear ;
vary_matrix = (Real *) calloc( nobj , sizeof(Real) );
/** read the variational matrix from disk *****/
if( fread(vary_matrix,sizeof(Real),nobj,fp) != nobj )
{
printf("There was an error during the reading of the variational matrix \n");
exit(1);
}
/*** close the file ****/
if( fclose(fp) != 0 )
{
printf("There was an error during the closing of %s \n",vary_out);
exit(1);
}
/*** byte_reverse if required ***/
if( byte_rev_flag == do_byte_rev )
{
byte_rev_array((int*) vary_matrix, (int) nobj);
}
printf("I have read the variational matrix from the file %s\n",vary_out);
/* write the correlatorsto file *****/
if( what_src == SINGLE_SRC )
{
if( which_source < 0 || which_source >= nosmear)
{
printf("ERROR which_source = %d is out of range 0 to %d\n",which_source,nosmear);
exit(2);
}
printf("smearing_function_file = %s\n",src_name);
dump_LSandSS_corr(vary_matrix,which_source, vary_out, local_src,what_fold,nt, nosmear);
}
else if( what_src == VARY_SRC )
{
coeff = (Real *) calloc( (size_t) nosmear, sizeof(Real) );
read_coeff_file(coeff_file ,coeff, nosmear);
dump_vary_LSandSS_corr(vary_matrix,coeff, vary_out, local_src,what_fold,nt, nosmear);
free(coeff);
}
else
{
printf("Bad option chosen \n");
dump_usage(argv[0]);
}
if(what_fold == AVERAGE_TIME )
{
printf("\nThe correlators will be averaged over positive and negative times\n");
}
/* Free up the memory used in the calculation ***/
free(vary_matrix);
return 0 ;
}
