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
|
// Copyright (c) 2017-2023, University of Tennessee. All rights reserved.
// SPDX-License-Identifier: BSD-3-Clause
// This program is free software: you can redistribute it and/or modify it under
// the terms of the BSD 3-Clause license. See the accompanying LICENSE file.
#include "test.hh"
#include "lapack.hh"
#include "lapack/flops.hh"
#include "print_matrix.hh"
#include "error.hh"
#include "lapacke_wrappers.hh"
#include <vector>
// -----------------------------------------------------------------------------
template< typename scalar_t >
void test_getrs_work( Params& params, bool run )
{
using real_t = blas::real_type< scalar_t >;
// get & mark input values
lapack::Op trans = params.trans();
int64_t n = params.dim.n();
int64_t nrhs = params.nrhs();
int64_t align = params.align();
int64_t verbose = params.verbose();
params.matrix.mark();
// mark non-standard output values
params.ref_time();
params.ref_gflops();
params.gflops();
if (! run)
return;
// ---------- setup
int64_t lda = roundup( blas::max( 1, n ), align );
int64_t ldb = roundup( blas::max( 1, n ), align );
size_t size_A = (size_t) lda * n;
size_t size_ipiv = (size_t) (n);
size_t size_B = (size_t) ldb * nrhs;
std::vector< scalar_t > A( size_A );
std::vector< int64_t > ipiv_tst( size_ipiv );
std::vector< lapack_int > ipiv_ref( size_ipiv );
std::vector< scalar_t > B_tst( size_B );
std::vector< scalar_t > B_ref( size_B );
lapack::generate_matrix( params.matrix, n, n, &A[0], lda );
int64_t idist = 1;
int64_t iseed[4] = { 0, 1, 2, 3 };
lapack::larnv( idist, iseed, B_tst.size(), &B_tst[0] );
B_ref = B_tst;
if (verbose >= 1) {
printf( "\n"
"A n=%5lld, lda=%5lld\n"
"B n=%5lld, nrhs=%5lld, ldb=%5lld",
llong( n ), llong( lda ),
llong( n ), llong( nrhs ), llong( ldb ) );
}
if (verbose >= 2) {
printf( "A = " ); print_matrix( n, n, &A[0], lda );
printf( "B = " ); print_matrix( n, nrhs, &B_tst[0], lda );
}
// factor A into LU
int64_t info = lapack::getrf( n, n, &A[0], lda, &ipiv_tst[0] );
if (info != 0) {
fprintf( stderr, "lapack::getrf returned error %lld\n", llong( info ) );
}
std::copy( ipiv_tst.begin(), ipiv_tst.end(), ipiv_ref.begin() );
// test error exits
if (params.error_exit() == 'y') {
assert_throw( lapack::getrf( -1, n, &A[0], lda, &ipiv_tst[0] ), lapack::Error );
assert_throw( lapack::getrf( n, -1, &A[0], lda, &ipiv_tst[0] ), lapack::Error );
assert_throw( lapack::getrf( n, n, &A[0], n-1, &ipiv_tst[0] ), lapack::Error );
}
// ---------- run test
testsweeper::flush_cache( params.cache() );
double time = testsweeper::get_wtime();
int64_t info_tst = lapack::getrs( trans, n, nrhs, &A[0], lda, &ipiv_tst[0], &B_tst[0], ldb );
time = testsweeper::get_wtime() - time;
if (info_tst != 0) {
fprintf( stderr, "lapack::getrs returned error %lld\n", llong( info_tst ) );
}
params.time() = time;
double gflop = lapack::Gflop< scalar_t >::getrs( n, nrhs );
params.gflops() = gflop / time;
if (verbose >= 2) {
printf( "B2 = " ); print_matrix( n, nrhs, &B_tst[0], ldb );
}
if (params.ref() == 'y' || params.check() == 'y') {
// ---------- run reference
testsweeper::flush_cache( params.cache() );
time = testsweeper::get_wtime();
int64_t info_ref = LAPACKE_getrs( to_char( trans ), n, nrhs, &A[0], lda, &ipiv_ref[0], &B_ref[0], ldb );
time = testsweeper::get_wtime() - time;
if (info_ref != 0) {
fprintf( stderr, "LAPACKE_getrs returned error %lld\n", llong( info_ref ) );
}
params.ref_time() = time;
params.ref_gflops() = gflop / time;
if (verbose >= 2) {
printf( "B2ref = " ); print_matrix( n, nrhs, &B_ref[0], ldb );
}
// ---------- check error compared to reference
real_t error = 0;
if (info_tst != info_ref) {
error = 1;
}
error += abs_error( B_tst, B_ref );
params.error() = error;
params.okay() = (error == 0); // expect lapackpp == lapacke
}
}
// -----------------------------------------------------------------------------
void test_getrs( Params& params, bool run )
{
switch (params.datatype()) {
case testsweeper::DataType::Single:
test_getrs_work< float >( params, run );
break;
case testsweeper::DataType::Double:
test_getrs_work< double >( params, run );
break;
case testsweeper::DataType::SingleComplex:
test_getrs_work< std::complex<float> >( params, run );
break;
case testsweeper::DataType::DoubleComplex:
test_getrs_work< std::complex<double> >( params, run );
break;
default:
throw std::runtime_error( "unknown datatype" );
break;
}
}
|
