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/*
-- MAGMA (version 2.9.0) --
Univ. of Tennessee, Knoxville
Univ. of California, Berkeley
Univ. of Colorado, Denver
@date January 2025
@author Mark Gates
@precisions mixed zc -> ds
*/
// includes, system
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <assert.h>
// includes, project
#include "magma_v2.h"
#include "magma_lapack.h"
#include "magma_operators.h"
#include "testings.h"
/* ////////////////////////////////////////////////////////////////////////////
-- Testing zlat2c and clat2z
*/
int main( int argc, char** argv )
{
#define A(i_,j_) ( A + (i_) + (j_)*lda)
#define SA(i_,j_) (SA + (i_) + (j_)*lda)
TESTING_CHECK( magma_init() );
magma_print_environment();
real_Double_t gbytes, gpu_perf, gpu_time, cpu_perf, cpu_time;
double error, work[1];
float serror, swork[1];
magmaDoubleComplex c_neg_one = MAGMA_Z_NEG_ONE;
magmaFloatComplex s_neg_one = MAGMA_C_NEG_ONE;
magma_int_t ione = 1;
magma_int_t n, lda, ldda, size, info;
magma_int_t ISEED[4] = {0,0,0,1};
int status = 0;
magmaFloatComplex *SA, *SR;
magmaDoubleComplex *A, *R;
magmaFloatComplex_ptr dSA;
magmaDoubleComplex_ptr dA;
magma_opts opts;
opts.parse_opts( argc, argv );
magma_uplo_t uplo[] = { MagmaLower, MagmaUpper };
printf("%% func uplo N CPU GB/s (ms) GPU GB/s (ms) ||R||_F\n");
printf("%%====================================================================\n");
for( int iuplo = 0; iuplo < 2; ++iuplo ) {
for( int itest = 0; itest < opts.ntest; ++itest ) {
for( int iter = 0; iter < opts.niter; ++iter ) {
n = opts.nsize[itest];
lda = n;
ldda = magma_roundup( n, opts.align ); // multiple of 32 by default
// 0.5*(n+1)*n double-complex loads and 0.5*(n+1)*n single-complex stores (and vice-versa for clat2z)
gbytes = (real_Double_t) 0.5*(n+1)*n * (sizeof(magmaDoubleComplex) + sizeof(magmaFloatComplex)) / 1e9;
size = ldda*n; // ldda >= lda
TESTING_CHECK( magma_cmalloc_cpu( &SA, size ));
TESTING_CHECK( magma_zmalloc_cpu( &A, size ));
TESTING_CHECK( magma_cmalloc_cpu( &SR, size ));
TESTING_CHECK( magma_zmalloc_cpu( &R, size ));
TESTING_CHECK( magma_cmalloc( &dSA, size ));
TESTING_CHECK( magma_zmalloc( &dA, size ));
lapackf77_zlarnv( &ione, ISEED, &size, A );
lapackf77_clarnv( &ione, ISEED, &size, SA );
magma_zsetmatrix( n, n, A, lda, dA, ldda, opts.queue );
magma_csetmatrix( n, n, SA, lda, dSA, ldda, opts.queue );
/* =====================================================================
Performs operation using LAPACK zlat2c
=================================================================== */
info = 0;
cpu_time = magma_wtime();
lapackf77_zlat2c( lapack_uplo_const(uplo[iuplo]), &n, A, &lda, SA, &lda, &info );
cpu_time = magma_wtime() - cpu_time;
cpu_perf = gbytes / cpu_time;
if (info != 0) {
printf("lapackf77_zlat2c returned error %lld: %s.\n",
(long long) info, magma_strerror( info ));
}
/* ====================================================================
Performs operation using MAGMA zlat2c
=================================================================== */
gpu_time = magma_sync_wtime( opts.queue );
magmablas_zlat2c( uplo[iuplo], n, dA, ldda, dSA, ldda, opts.queue, &info );
gpu_time = magma_sync_wtime( opts.queue ) - gpu_time;
gpu_perf = gbytes / gpu_time;
if (info != 0) {
printf("magmablas_zlat2c returned error %lld: %s.\n",
(long long) info, magma_strerror( info ));
}
magma_cgetmatrix( n, n, dSA, ldda, SR, lda, opts.queue );
if ( opts.verbose ) {
printf( "A= " ); magma_zprint( n, n, A, lda );
printf( "SA= " ); magma_cprint( n, n, SA, lda );
printf( "dA= " ); magma_zprint_gpu( n, n, dA, ldda, opts.queue );
printf( "dSA=" ); magma_cprint_gpu( n, n, dSA, ldda, opts.queue );
}
/* =====================================================================
compute error |SA_magma - SA_lapack|
should be zero if both are IEEE compliant
=================================================================== */
blasf77_caxpy( &size, &s_neg_one, SA, &ione, SR, &ione );
serror = lapackf77_clange( "Fro", &n, &n, SR, &lda, swork );
printf( "zlat2c %5s %5lld %7.2f (%7.2f) %7.2f (%7.2f) %8.2e %s\n",
lapack_uplo_const(uplo[iuplo]), (long long) n,
cpu_perf, cpu_time*1000., gpu_perf, gpu_time*1000.,
serror, (serror == 0 ? "ok" : "failed") );
status += ! (serror == 0);
/* =====================================================================
Reset matrices
=================================================================== */
lapackf77_zlarnv( &ione, ISEED, &size, A );
lapackf77_clarnv( &ione, ISEED, &size, SA );
magma_zsetmatrix( n, n, A, lda, dA, ldda, opts.queue );
magma_csetmatrix( n, n, SA, lda, dSA, ldda, opts.queue );
/* =====================================================================
Performs operation using LAPACK clat2z
LAPACK doesn't implement clat2z; use our own simple implementation.
=================================================================== */
cpu_time = magma_wtime();
if ( uplo[iuplo] == MagmaLower ) {
for( int j=0; j < n; ++j ) {
for( int i=j; i < n; ++i ) {
*A(i,j) = MAGMA_Z_MAKE( real(*SA(i,j)), imag(*SA(i,j)) );
}
}
}
else { // upper
for( int j=0; j < n; ++j ) {
for( int i=0; i <= j; ++i ) {
*A(i,j) = MAGMA_Z_MAKE( real(*SA(i,j)), imag(*SA(i,j)) );
}
}
}
cpu_time = magma_wtime() - cpu_time;
cpu_perf = gbytes / cpu_time;
if (info != 0) {
printf("lapackf77_clat2z returned error %lld: %s.\n",
(long long) info, magma_strerror( info ));
}
/* ====================================================================
Performs operation using MAGMA clat2z
=================================================================== */
magma_csetmatrix( n, n, SA, lda, dSA, ldda, opts.queue );
gpu_time = magma_sync_wtime( opts.queue );
magmablas_clat2z( uplo[iuplo], n, dSA, ldda, dA, ldda, opts.queue, &info );
gpu_time = magma_sync_wtime( opts.queue ) - gpu_time;
gpu_perf = gbytes / gpu_time;
if (info != 0) {
printf("magmablas_clat2z returned error %lld: %s.\n",
(long long) info, magma_strerror( info ));
}
magma_zgetmatrix( n, n, dA, ldda, R, lda, opts.queue );
if ( opts.verbose ) {
printf( "A= " ); magma_zprint( n, n, A, lda );
printf( "SA= " ); magma_cprint( n, n, SA, lda );
printf( "dA= " ); magma_zprint_gpu( n, n, dA, ldda, opts.queue );
printf( "dSA=" ); magma_cprint_gpu( n, n, dSA, ldda, opts.queue );
}
/* =====================================================================
compute error |A_magma - A_lapack|
should be zero if both are IEEE compliant
=================================================================== */
blasf77_zaxpy( &size, &c_neg_one, A, &ione, R, &ione );
error = lapackf77_zlange( "Fro", &n, &n, R, &lda, work );
printf( "clat2z %5s %5lld %7.2f (%7.2f) %7.2f (%7.2f) %8.2e %s\n",
lapack_uplo_const(uplo[iuplo]), (long long) n,
cpu_perf, cpu_time*1000., gpu_perf, gpu_time*1000.,
error, (error == 0 ? "ok" : "failed") );
status += ! (error == 0);
magma_free_cpu( SA );
magma_free_cpu( A );
magma_free_cpu( SR );
magma_free_cpu( R );
magma_free( dSA );
magma_free( dA );
printf( "\n" );
fflush( stdout );
}
if ( opts.niter > 1 ) {
printf( "\n" );
}
}
printf( "\n" );
}
opts.cleanup();
TESTING_CHECK( magma_finalize() );
return status;
}
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