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/* test_colDotProduct.c */
#include "../Iter.h"
#include "../../timings.h"
/*--------------------------------------------------------------------*/
int
main ( int argc, char *argv[] )
/*
-----------------------------------------------
test the DenseMtx_colDotProduct routine.
value = x^H * y, where x and y are i-th and j-th columns of a
DenseMtx A respectively. (In real application, y could be from
another DenseMtx.)
when msglvl > 1, the output of this program
can be fed into Matlab to check for errors
created -- 98dec03, jwu
-----------------------------------------------
*/
{
DenseMtx *A ;
double t1, t2, value[2] ;
Drand *drand ;
FILE *msgFile ;
int inc1, inc2, icol, jcol, msglvl, nrow, ncol, rc, seed, type ;
if ( argc != 11 ) {
fprintf(stdout,
"\n\n usage : %s msglvl msgFile type nrow ncol inc1 inc2 "
"\n icol, jcol, seed "
"\n msglvl -- message level"
"\n msgFile -- message file"
"\n type -- entries type"
"\n 1 -- real"
"\n 2 -- complex"
"\n nrow -- # of rows "
"\n ncol -- # of columns "
"\n inc1 -- row increment "
"\n inc2 -- column increment "
"\n icol -- vector x: i-th column of A "
"\n jcol -- vector y: j-th column of A "
"\n seed -- random number seed"
"\n", argv[0]) ;
return(0) ;
}
if ( (msglvl = atoi(argv[1])) < 0 ) {
fprintf(stderr, "\n message level must be positive\n") ;
exit(-1) ;
}
if ( strcmp(argv[2], "stdout") == 0 ) {
msgFile = stdout ;
} else if ( (msgFile = fopen(argv[2], "a")) == NULL ) {
fprintf(stderr, "\n unable to open file %s\n", argv[2]) ;
return(-1) ;
}
type = atoi(argv[3]) ;
nrow = atoi(argv[4]) ;
ncol = atoi(argv[5]) ;
inc1 = atoi(argv[6]) ;
inc2 = atoi(argv[7]) ;
if ( type < 1 || type > 2 || nrow < 0 || ncol < 0
|| inc1 < 1 || inc2 < 1 ) {
fprintf(stderr,
"\n fatal error, type %d, nrow %d, ncol %d, inc1 %d, inc2 %d",
type, nrow, ncol, inc1, inc2) ;
exit(-1) ;
}
icol = atoi(argv[8]) ;
jcol = atoi(argv[9]) ;
seed = atoi(argv[10]) ;
fprintf(msgFile, "\n\n %% %s :"
"\n %% msglvl = %d"
"\n %% msgFile = %s"
"\n %% type = %d"
"\n %% nrow = %d"
"\n %% ncol = %d"
"\n %% inc1 = %d"
"\n %% inc2 = %d"
"\n %% icol = %d"
"\n %% jcol = %d"
"\n %% seed = %d"
"\n",
argv[0], msglvl, argv[2], type, nrow, ncol, inc1, inc2,
icol, jcol, seed) ;
/*
----------------------------
initialize the matrix object
----------------------------
*/
MARKTIME(t1) ;
A = DenseMtx_new() ;
DenseMtx_init(A, type, 0, 0, nrow, ncol, inc1, inc2) ;
MARKTIME(t2) ;
fprintf(msgFile, "\n %% CPU : %.3f to initialize matrix object",
t2 - t1) ;
MARKTIME(t1) ;
drand = Drand_new() ;
Drand_setSeed(drand, seed) ;
seed++ ;
Drand_setUniform(drand, -1.0, 1.0) ;
DenseMtx_fillRandomEntries(A, drand) ;
MARKTIME(t2) ;
fprintf(msgFile,
"\n %% CPU : %.3f to fill matrix with random numbers", t2 - t1) ;
if ( msglvl > 3 ) {
fprintf(msgFile, "\n matrix A") ;
DenseMtx_writeForHumanEye(A, msgFile) ;
}
if ( msglvl > 1 ) {
fprintf(msgFile, "\n %% matrix A") ;
fprintf(msgFile, "\n nrow = %d ;", nrow) ;
fprintf(msgFile, "\n ncol = %d ;", ncol) ;
fprintf(msgFile, "\n");
DenseMtx_writeForMatlab(A, "A", msgFile) ;
}
/*
----------------
compute the inner product
----------------
*/
DenseMtx_colDotProduct(A, icol, A, jcol, value);
if ( msglvl > 1 ) {
fprintf(msgFile, "\n\n %% Dot product A(:,%d)^H * A(:,%d):",icol+1, jcol+1) ;
fprintf(msgFile, "\n real = %e", value[0]) ;
if (DENSEMTX_IS_COMPLEX(A)) fprintf(msgFile, "\n imag = %e", value[1]);
fprintf(msgFile, "\n");
fflush(msgFile) ;
}
/*
------------------------
free the working storage
------------------------
*/
DenseMtx_free(A) ;
Drand_free(drand) ;
return(1) ; }
/*--------------------------------------------------------------------*/
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