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/*
-- MAGMA (version 2.9.0) --
Univ. of Tennessee, Knoxville
Univ. of California, Berkeley
Univ. of Colorado, Denver
@date January 2025
@generated from testing/testing_zswap.cpp, normal z -> d, Wed Jan 22 14:40:25 2025
@author Mark Gates
*/
// 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 "testings.h"
// if ( A == B ) return 0, else return 1
static magma_int_t diff_matrix(
magma_int_t m, magma_int_t n,
double *A, magma_int_t lda,
double *B, magma_int_t ldb )
{
for( magma_int_t j = 0; j < n; j++ ) {
for( magma_int_t i = 0; i < m; i++ ) {
if ( ! MAGMA_D_EQUAL( A[lda*j+i], B[ldb*j+i] ) )
return 1;
}
}
return 0;
}
// fill matrix with entries Aij = offset + (i+1) + (j+1)/10000,
// which makes it easy to identify which rows & cols have been swapped.
static void init_matrix(
magma_int_t m, magma_int_t n,
double *A, magma_int_t lda, magma_int_t offset )
{
assert( lda >= m );
for( magma_int_t j = 0; j < n; ++j ) {
for( magma_int_t i=0; i < m; ++i ) {
A[i + j*lda] = MAGMA_D_MAKE( offset + (i+1) + (j+1)/10000., 0 );
}
}
}
/* ////////////////////////////////////////////////////////////////////////////
-- Testing dswap, dswapblk, dlaswp, dlaswpx
*/
int main( int argc, char** argv)
{
TESTING_CHECK( magma_init() );
magma_print_environment();
// OpenCL use: cl_mem , offset (two arguments);
// else use: pointer + offset (one argument).
#ifdef MAGMA_HAVE_OPENCL
#define d_A1(i_, j_) d_A1 , (i_) + (j_)*ldda
#define d_A2(i_, j_) d_A2 , (i_) + (j_)*ldda
#define d_ipiv(i_) d_ipiv , (i_)
#else
#define d_A1(i_, j_) (d_A1 + (i_) + (j_)*ldda)
#define d_A2(i_, j_) (d_A2 + (i_) + (j_)*ldda)
#define d_ipiv(i_) (d_ipiv + (i_))
#endif
#define h_A1(i_, j_) (h_A1 + (i_) + (j_)*lda)
#define h_A2(i_, j_) (h_A2 + (i_) + (j_)*lda)
double *h_A1, *h_A2;
double *h_R1, *h_R2;
magmaDouble_ptr d_A1, d_A2;
// row-major and column-major performance
real_Double_t row_perf0 = MAGMA_D_NAN, col_perf0 = MAGMA_D_NAN;
real_Double_t row_perf1 = MAGMA_D_NAN, col_perf1 = MAGMA_D_NAN;
real_Double_t row_perf2 = MAGMA_D_NAN, col_perf2 = MAGMA_D_NAN;
real_Double_t row_perf4 = MAGMA_D_NAN;
real_Double_t row_perf5 = MAGMA_D_NAN, col_perf5 = MAGMA_D_NAN;
real_Double_t row_perf6 = MAGMA_D_NAN, col_perf6 = MAGMA_D_NAN;
real_Double_t row_perf7 = MAGMA_D_NAN;
real_Double_t cpu_perf = MAGMA_D_NAN;
real_Double_t time, gbytes;
magma_int_t N, lda, ldda, nb, j;
magma_int_t ione = 1;
magma_int_t *ipiv, *ipiv2;
magmaInt_ptr d_ipiv;
int status = 0;
magma_opts opts;
opts.parse_opts( argc, argv );
printf("%% %8s dswap dswap dswapblk dlaswp dlaswp2 dlaswpx dcopymatrix CPU (all in )\n", g_platform_str );
printf("%% N nb row-maj/col-maj row-maj/col-maj row-maj/col-maj row-maj row-maj row-maj/col-maj row-blk/col-blk dlaswp (GByte/s)\n");
printf("%%========================================================================================================================================\n");
for( int itest = 0; itest < opts.ntest; ++itest ) {
for( int iter = 0; iter < opts.niter; ++iter ) {
// For an N x N matrix, swap nb rows or nb columns using various methods.
// Each test is assigned one bit in the 'check' bitmask; bit=1 indicates failure.
// The variable 'shift' keeps track of which bit is for current test
magma_int_t shift = 1;
magma_int_t check = 0;
N = opts.nsize[itest];
lda = N;
ldda = magma_roundup( N, opts.align ); // multiple of 32 by default
nb = (opts.nb > 0 ? opts.nb : magma_get_dgetrf_nb( N, N ));
nb = min( N, nb );
// each swap does 2N loads and 2N stores, for nb swaps
gbytes = sizeof(double) * 4.*N*nb / 1e9;
TESTING_CHECK( magma_dmalloc_pinned( &h_A1, lda*N ));
TESTING_CHECK( magma_dmalloc_pinned( &h_A2, lda*N ));
TESTING_CHECK( magma_dmalloc_pinned( &h_R1, lda*N ));
TESTING_CHECK( magma_dmalloc_pinned( &h_R2, lda*N ));
TESTING_CHECK( magma_imalloc_cpu( &ipiv, nb ));
TESTING_CHECK( magma_imalloc_cpu( &ipiv2, nb ));
TESTING_CHECK( magma_imalloc( &d_ipiv, nb ));
TESTING_CHECK( magma_dmalloc( &d_A1, ldda*N ));
TESTING_CHECK( magma_dmalloc( &d_A2, ldda*N ));
// getrf always makes ipiv[j] >= j+1, where ipiv is one based and j is zero based
// some implementations (e.g., MacOS dlaswp) assume this
for( j=0; j < nb; j++ ) {
ipiv[j] = (rand() % (N-j)) + j + 1;
assert( ipiv[j] >= j+1 );
assert( ipiv[j] <= N );
}
/* =====================================================================
* cublas / clBLAS / Xeon Phi dswap, row-by-row (2 matrices)
*/
/* Row Major */
init_matrix( N, N, h_A1, lda, 0 );
init_matrix( N, N, h_A2, lda, 100 );
magma_dsetmatrix( N, N, h_A1, lda, d_A1(0,0), ldda, opts.queue );
magma_dsetmatrix( N, N, h_A2, lda, d_A2(0,0), ldda, opts.queue );
time = magma_sync_wtime( opts.queue );
for( j=0; j < nb; j++) {
if ( j != (ipiv[j]-1)) {
magma_dswap( N, d_A1(0,j), 1, d_A2(0,ipiv[j]-1), 1, opts.queue );
}
}
time = magma_sync_wtime( opts.queue ) - time;
row_perf0 = gbytes / time;
for( j=0; j < nb; j++) {
if ( j != (ipiv[j]-1)) {
blasf77_dswap( &N, h_A1(0,j), &ione, h_A2(0,ipiv[j]-1), &ione);
}
}
magma_dgetmatrix( N, N, d_A1(0,0), ldda, h_R1, lda, opts.queue );
magma_dgetmatrix( N, N, d_A2(0,0), ldda, h_R2, lda, opts.queue );
check += (diff_matrix( N, N, h_A1, lda, h_R1, lda ) ||
diff_matrix( N, N, h_A2, lda, h_R2, lda ))*shift;
shift *= 2;
/* Column Major */
init_matrix( N, N, h_A1, lda, 0 );
init_matrix( N, N, h_A2, lda, 100 );
magma_dsetmatrix( N, N, h_A1, lda, d_A1(0,0), ldda, opts.queue );
magma_dsetmatrix( N, N, h_A2, lda, d_A2(0,0), ldda, opts.queue );
time = magma_sync_wtime( opts.queue );
for( j=0; j < nb; j++) {
if ( j != (ipiv[j]-1)) {
magma_dswap( N, d_A1(j,0), ldda, d_A2(ipiv[j]-1,0), ldda, opts.queue );
}
}
time = magma_sync_wtime( opts.queue ) - time;
col_perf0 = gbytes / time;
for( j=0; j < nb; j++) {
if ( j != (ipiv[j]-1)) {
blasf77_dswap( &N, h_A1+j, &lda, h_A2+(ipiv[j]-1), &lda);
}
}
magma_dgetmatrix( N, N, d_A1(0,0), ldda, h_R1, lda, opts.queue );
magma_dgetmatrix( N, N, d_A2(0,0), ldda, h_R2, lda, opts.queue );
check += (diff_matrix( N, N, h_A1, lda, h_R1, lda ) ||
diff_matrix( N, N, h_A2, lda, h_R2, lda ))*shift;
shift *= 2;
/* =====================================================================
* dswap, row-by-row (2 matrices)
*/
/* Row Major */
init_matrix( N, N, h_A1, lda, 0 );
init_matrix( N, N, h_A2, lda, 100 );
magma_dsetmatrix( N, N, h_A1, lda, d_A1(0,0), ldda, opts.queue );
magma_dsetmatrix( N, N, h_A2, lda, d_A2(0,0), ldda, opts.queue );
time = magma_sync_wtime( opts.queue );
for( j=0; j < nb; j++) {
if ( j != (ipiv[j]-1)) {
magmablas_dswap( N, d_A1(0,j), 1, d_A2(0,ipiv[j]-1), 1, opts.queue );
}
}
time = magma_sync_wtime( opts.queue ) - time;
row_perf1 = gbytes / time;
for( j=0; j < nb; j++) {
if ( j != (ipiv[j]-1)) {
blasf77_dswap( &N, h_A1(0,j), &ione, h_A2(0,ipiv[j]-1), &ione);
}
}
magma_dgetmatrix( N, N, d_A1(0,0), ldda, h_R1, lda, opts.queue );
magma_dgetmatrix( N, N, d_A2(0,0), ldda, h_R2, lda, opts.queue );
check += (diff_matrix( N, N, h_A1, lda, h_R1, lda ) ||
diff_matrix( N, N, h_A2, lda, h_R2, lda ))*shift;
shift *= 2;
/* Column Major */
init_matrix( N, N, h_A1, lda, 0 );
init_matrix( N, N, h_A2, lda, 100 );
magma_dsetmatrix( N, N, h_A1, lda, d_A1(0,0), ldda, opts.queue );
magma_dsetmatrix( N, N, h_A2, lda, d_A2(0,0), ldda, opts.queue );
time = magma_sync_wtime( opts.queue );
for( j=0; j < nb; j++) {
if ( j != (ipiv[j]-1)) {
magmablas_dswap( N, d_A1(j,0), ldda, d_A2(ipiv[j]-1,0), ldda, opts.queue );
}
}
time = magma_sync_wtime( opts.queue ) - time;
col_perf1 = gbytes / time;
for( j=0; j < nb; j++) {
if ( j != (ipiv[j]-1)) {
blasf77_dswap( &N, h_A1+j, &lda, h_A2+(ipiv[j]-1), &lda);
}
}
magma_dgetmatrix( N, N, d_A1(0,0), ldda, h_R1, lda, opts.queue );
magma_dgetmatrix( N, N, d_A2(0,0), ldda, h_R2, lda, opts.queue );
check += (diff_matrix( N, N, h_A1, lda, h_R1, lda ) ||
diff_matrix( N, N, h_A2, lda, h_R2, lda ))*shift;
shift *= 2;
/* =====================================================================
* dswapblk, blocked version (2 matrices)
*/
#if defined(MAGMA_HAVE_CUDA) || defined(MAGMA_HAVE_HIP)
/* Row Major */
init_matrix( N, N, h_A1, lda, 0 );
init_matrix( N, N, h_A2, lda, 100 );
magma_dsetmatrix( N, N, h_A1, lda, d_A1(0,0), ldda, opts.queue );
magma_dsetmatrix( N, N, h_A2, lda, d_A2(0,0), ldda, opts.queue );
time = magma_sync_wtime( opts.queue );
magmablas_dswapblk( MagmaRowMajor, N, d_A1(0,0), ldda, d_A2(0,0), ldda, 1, nb, ipiv, 1, 0, opts.queue );
time = magma_sync_wtime( opts.queue ) - time;
row_perf2 = gbytes / time;
for( j=0; j < nb; j++) {
if ( j != (ipiv[j]-1)) {
blasf77_dswap( &N, h_A1(0,j), &ione, h_A2(0,ipiv[j]-1), &ione );
}
}
magma_dgetmatrix( N, N, d_A1(0,0), ldda, h_R1, lda, opts.queue );
magma_dgetmatrix( N, N, d_A2(0,0), ldda, h_R2, lda, opts.queue );
check += (diff_matrix( N, N, h_A1, lda, h_R1, lda ) ||
diff_matrix( N, N, h_A2, lda, h_R2, lda ))*shift;
shift *= 2;
/* Column Major */
init_matrix( N, N, h_A1, lda, 0 );
init_matrix( N, N, h_A2, lda, 100 );
magma_dsetmatrix( N, N, h_A1, lda, d_A1(0,0), ldda, opts.queue );
magma_dsetmatrix( N, N, h_A2, lda, d_A2(0,0), ldda, opts.queue );
time = magma_sync_wtime( opts.queue );
magmablas_dswapblk( MagmaColMajor, N, d_A1(0,0), ldda, d_A2(0,0), ldda, 1, nb, ipiv, 1, 0, opts.queue );
time = magma_sync_wtime( opts.queue ) - time;
col_perf2 = gbytes / time;
for( j=0; j < nb; j++) {
if ( j != (ipiv[j]-1)) {
blasf77_dswap( &N, h_A1(j,0), &lda, h_A2(ipiv[j]-1,0), &lda );
}
}
magma_dgetmatrix( N, N, d_A1(0,0), ldda, h_R1, lda, opts.queue );
magma_dgetmatrix( N, N, d_A2(0,0), ldda, h_R2, lda, opts.queue );
check += (diff_matrix( N, N, h_A1, lda, h_R1, lda ) ||
diff_matrix( N, N, h_A2, lda, h_R2, lda ))*shift;
shift *= 2;
#endif
/* =====================================================================
* LAPACK-style dlaswp (1 matrix)
*/
/* Row Major */
init_matrix( N, N, h_A1, lda, 0 );
magma_dsetmatrix( N, N, h_A1, lda, d_A1(0,0), ldda, opts.queue );
time = magma_sync_wtime( opts.queue );
magmablas_dlaswp( N, d_A1(0,0), ldda, 1, nb, ipiv, 1, opts.queue );
time = magma_sync_wtime( opts.queue ) - time;
row_perf4 = gbytes / time;
for( j=0; j < nb; j++) {
if ( j != (ipiv[j]-1)) {
blasf77_dswap( &N, h_A1(0,j), &ione, h_A1(0,ipiv[j]-1), &ione );
}
}
magma_dgetmatrix( N, N, d_A1(0,0), ldda, h_R1, lda, opts.queue );
check += diff_matrix( N, N, h_A1, lda, h_R1, lda )*shift;
shift *= 2;
/* =====================================================================
* LAPACK-style dlaswp (1 matrix) - d_ipiv on GPU
*/
/* Row Major */
init_matrix( N, N, h_A1, lda, 0 );
magma_dsetmatrix( N, N, h_A1, lda, d_A1(0,0), ldda, opts.queue );
time = magma_sync_wtime( opts.queue );
magma_isetvector( nb, ipiv, 1, d_ipiv(0), 1, opts.queue );
magmablas_dlaswp2( N, d_A1(0,0), ldda, 1, nb, d_ipiv(0), 1, opts.queue );
time = magma_sync_wtime( opts.queue ) - time;
row_perf7 = gbytes / time;
for( j=0; j < nb; j++) {
if ( j != (ipiv[j]-1)) {
blasf77_dswap( &N, h_A1(0,j), &ione, h_A1(0,ipiv[j]-1), &ione );
}
}
magma_dgetmatrix( N, N, d_A1(0,0), ldda, h_R1, lda, opts.queue );
check += diff_matrix( N, N, h_A1, lda, h_R1, lda )*shift;
shift *= 2;
/* =====================================================================
* LAPACK-style dlaswpx (extended for row- and col-major) (1 matrix)
*/
/* Row Major */
init_matrix( N, N, h_A1, lda, 0 );
magma_dsetmatrix( N, N, h_A1, lda, d_A1(0,0), ldda, opts.queue );
time = magma_sync_wtime( opts.queue );
magmablas_dlaswpx( N, d_A1(0,0), ldda, 1, 1, nb, ipiv, 1, opts.queue );
time = magma_sync_wtime( opts.queue ) - time;
row_perf5 = gbytes / time;
for( j=0; j < nb; j++) {
if ( j != (ipiv[j]-1)) {
blasf77_dswap( &N, h_A1(0,j), &ione, h_A1(0,ipiv[j]-1), &ione );
}
}
magma_dgetmatrix( N, N, d_A1(0,0), ldda, h_R1, lda, opts.queue );
check += diff_matrix( N, N, h_A1, lda, h_R1, lda )*shift;
shift *= 2;
/* Col Major */
init_matrix( N, N, h_A1, lda, 0 );
magma_dsetmatrix( N, N, h_A1, lda, d_A1(0,0), ldda, opts.queue );
time = magma_sync_wtime( opts.queue );
magmablas_dlaswpx( N, d_A1(0,0), 1, ldda, 1, nb, ipiv, 1, opts.queue );
time = magma_sync_wtime( opts.queue ) - time;
col_perf5 = gbytes / time;
/* LAPACK swap on CPU for comparison */
time = magma_wtime();
lapackf77_dlaswp( &N, h_A1, &lda, &ione, &nb, ipiv, &ione );
time = magma_wtime() - time;
cpu_perf = gbytes / time;
magma_dgetmatrix( N, N, d_A1(0,0), ldda, h_R1, lda, opts.queue );
check += diff_matrix( N, N, h_A1, lda, h_R1, lda )*shift;
shift *= 2;
/* =====================================================================
* Copy matrix.
*/
time = magma_sync_wtime( opts.queue );
magma_dcopymatrix( N, nb, d_A1(0,0), ldda, d_A2(0,0), ldda, opts.queue );
time = magma_sync_wtime( opts.queue ) - time;
// copy reads 1 matrix and writes 1 matrix, so has half gbytes of swap
col_perf6 = 0.5 * gbytes / time;
time = magma_sync_wtime( opts.queue );
magma_dcopymatrix( nb, N, d_A1(0,0), ldda, d_A2(0,0), ldda, opts.queue );
time = magma_sync_wtime( opts.queue ) - time;
// copy reads 1 matrix and writes 1 matrix, so has half gbytes of swap
row_perf6 = 0.5 * gbytes / time;
printf("%5lld %3lld %6.2f%c/ %6.2f%c %6.2f%c/ %6.2f%c %6.2f%c/ %6.2f%c %6.2f%c %6.2f%c %6.2f%c/ %6.2f%c %6.2f / %6.2f %6.2f %10s\n",
(long long) N, (long long) nb,
row_perf0, ((check & 0x001) != 0 ? '*' : ' '),
col_perf0, ((check & 0x002) != 0 ? '*' : ' '),
row_perf1, ((check & 0x004) != 0 ? '*' : ' '),
col_perf1, ((check & 0x008) != 0 ? '*' : ' '),
row_perf2, ((check & 0x010) != 0 ? '*' : ' '),
col_perf2, ((check & 0x020) != 0 ? '*' : ' '),
row_perf4, ((check & 0x040) != 0 ? '*' : ' '),
row_perf7, ((check & 0x080) != 0 ? '*' : ' '),
row_perf5, ((check & 0x100) != 0 ? '*' : ' '),
col_perf5, ((check & 0x200) != 0 ? '*' : ' '),
row_perf6,
col_perf6,
cpu_perf,
(check == 0 ? "ok" : "* failed") );
status += ! (check == 0);
magma_free_pinned( h_A1 );
magma_free_pinned( h_A2 );
magma_free_pinned( h_R1 );
magma_free_pinned( h_R2 );
magma_free_cpu( ipiv );
magma_free_cpu( ipiv2 );
magma_free( d_ipiv );
magma_free( d_A1 );
magma_free( d_A2 );
fflush( stdout );
}
if ( opts.niter > 1 ) {
printf( "\n" );
}
}
opts.cleanup();
TESTING_CHECK( magma_finalize() );
return status;
}
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