1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
/*
-- MAGMA (version 2.9.0) --
Univ. of Tennessee, Knoxville
Univ. of California, Berkeley
Univ. of Colorado, Denver
@date January 2025
@author Mark Gates
@generated from testing/testing_zlag2c.cpp, mixed zc -> ds, Wed Jan 22 14:40:22 2025
*/
// 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"
/* ////////////////////////////////////////////////////////////////////////////
-- Testing dlag2s and slag2d
*/
int main( int argc, char** argv )
{
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];
double c_neg_one = MAGMA_D_NEG_ONE;
float s_neg_one = MAGMA_S_NEG_ONE;
magma_int_t ione = 1;
magma_int_t m, n, lda, ldda, size, info;
magma_int_t ISEED[4] = {0,0,0,1};
int status = 0;
float *SA, *SR;
double *A, *R;
magmaFloat_ptr dSA;
magmaDouble_ptr dA;
magma_opts opts;
opts.parse_opts( argc, argv );
printf("%% func M N CPU GB/s (ms) GPU GB/s (ms) ||R||_F\n");
printf("%%====================================================================\n");
for( int itest = 0; itest < opts.ntest; ++itest ) {
for( int iter = 0; iter < opts.niter; ++iter ) {
m = opts.msize[itest];
n = opts.nsize[itest];
lda = m;
ldda = magma_roundup( m, opts.align ); // multiple of 32 by default
// m*n double-real loads and m*n single-real stores (and vice-versa for slag2d)
gbytes = (real_Double_t) m*n * (sizeof(double) + sizeof(float)) / 1e9;
size = ldda*n; // ldda >= lda
TESTING_CHECK( magma_smalloc_cpu( &SA, size ));
TESTING_CHECK( magma_dmalloc_cpu( &A, size ));
TESTING_CHECK( magma_smalloc_cpu( &SR, size ));
TESTING_CHECK( magma_dmalloc_cpu( &R, size ));
TESTING_CHECK( magma_smalloc( &dSA, size ));
TESTING_CHECK( magma_dmalloc( &dA, size ));
lapackf77_dlarnv( &ione, ISEED, &size, A );
lapackf77_slarnv( &ione, ISEED, &size, SA );
magma_dsetmatrix( m, n, A, lda, dA, ldda, opts.queue );
magma_ssetmatrix( m, n, SA, lda, dSA, ldda, opts.queue );
/* =====================================================================
Performs operation using LAPACK dlag2s
=================================================================== */
cpu_time = magma_wtime();
lapackf77_dlag2s( &m, &n, A, &lda, SA, &lda, &info );
cpu_time = magma_wtime() - cpu_time;
cpu_perf = gbytes / cpu_time;
if (info != 0) {
printf("lapackf77_dlag2s returned error %lld: %s.\n",
(long long) info, magma_strerror( info ));
}
/* ====================================================================
Performs operation using MAGMA dlag2s
=================================================================== */
gpu_time = magma_sync_wtime( opts.queue );
magmablas_dlag2s( m, 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_dlag2s returned error %lld: %s.\n",
(long long) info, magma_strerror( info ));
}
magma_sgetmatrix( m, n, dSA, ldda, SR, lda, opts.queue );
/* =====================================================================
compute error |SA_magma - SA_lapack|
should be zero if both are IEEE compliant
=================================================================== */
blasf77_saxpy( &size, &s_neg_one, SA, &ione, SR, &ione );
serror = lapackf77_slange( "Fro", &m, &n, SR, &lda, swork );
printf( "dlag2s %5lld %5lld %7.2f (%7.2f) %7.2f (%7.2f) %8.2e %s\n",
(long long) m, (long long) n,
cpu_perf, cpu_time*1000., gpu_perf, gpu_time*1000.,
serror, (serror == 0 ? "ok" : "failed") );
status += ! (serror == 0);
/* =====================================================================
Reset matrices
=================================================================== */
lapackf77_dlarnv( &ione, ISEED, &size, A );
lapackf77_slarnv( &ione, ISEED, &size, SA );
magma_dsetmatrix( m, n, A, lda, dA, ldda, opts.queue );
magma_ssetmatrix( m, n, SA, lda, dSA, ldda, opts.queue );
/* =====================================================================
Performs operation using LAPACK slag2d
=================================================================== */
cpu_time = magma_wtime();
lapackf77_slag2d( &m, &n, SA, &lda, A, &lda, &info );
cpu_time = magma_wtime() - cpu_time;
cpu_perf = gbytes / cpu_time;
if (info != 0) {
printf("lapackf77_slag2d returned error %lld: %s.\n",
(long long) info, magma_strerror( info ));
}
/* ====================================================================
Performs operation using MAGMA slag2d
=================================================================== */
magma_ssetmatrix( m, n, SA, lda, dSA, ldda, opts.queue );
gpu_time = magma_sync_wtime( opts.queue );
magmablas_slag2d( m, 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_slag2d returned error %lld: %s.\n",
(long long) info, magma_strerror( info ));
}
magma_dgetmatrix( m, n, dA, ldda, R, lda, opts.queue );
/* =====================================================================
compute error |A_magma - A_lapack|
should be zero if both are IEEE compliant
=================================================================== */
blasf77_daxpy( &size, &c_neg_one, A, &ione, R, &ione );
error = lapackf77_dlange( "Fro", &m, &n, R, &lda, work );
printf( "slag2d %5lld %5lld %7.2f (%7.2f) %7.2f (%7.2f) %8.2e %s\n",
(long long) m, (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" );
}
}
opts.cleanup();
TESTING_CHECK( magma_finalize() );
return status;
}
|
