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/* test_colGenAxpy.c */
#include "../Iter.h"
#include "../../timings.h"
/*--------------------------------------------------------------------*/
int
main ( int argc, char *argv[] )
/*
-----------------------------------------------
test the DenseMtx_colGenAxpy routine.
x = alpha*x + beta*y, where x and y are i-th and j-th columns of a
DenseMtx A respectively, and alpha and beta are scalars.
(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;
double alpha[2], beta[2];
Drand *drand ;
FILE *msgFile ;
int inc1, inc2, icol, jcol, msglvl, nrow, ncol, rc, seed, type ;
if ( argc != 15 ) {
fprintf(stdout,
"\n\n usage : %s msglvl msgFile type nrow ncol inc1 inc2 icol jcol"
"\n ralpha ialpha rbeta ibeta 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 ralpha -- real(alpha)"
"\n ialpha -- imag(alpha)"
"\n rbeta -- real(beta)"
"\n ibeta -- imag(beta)"
"\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]) ;
alpha[0] = atof (argv[10]);
alpha[1] = atof (argv[11]);
beta[0] = atof (argv[12]);
beta[1] = atof (argv[13]);
seed = atoi(argv[14]) ;
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 %% ralpha = %e"
"\n %% ialpha = %e"
"\n %% rbeta = %e"
"\n %% ibeta = %e"
"\n %% seed = %d"
"\n",
argv[0], msglvl, argv[2], type, nrow, ncol, inc1, inc2,
icol, jcol, alpha[0], alpha[1], beta[0], beta[1], 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_colGenAxpy(alpha, A, icol, beta, A, jcol);
if ( msglvl > 1 ) {
fprintf(msgFile, "\n\n %% A(:,%d)=alpha*A(:,%d)+beta*A(:,%d):",
icol+1,icol+1,jcol+1) ;
DenseMtx_writeForMatlab(A, "A", msgFile) ;
fprintf(msgFile, "\n");
}
/*
------------------------
free the working storage
------------------------
*/
DenseMtx_free(A) ;
Drand_free(drand) ;
return(1) ; }
/*--------------------------------------------------------------------*/
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