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
|
// 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 "check_gels.hh"
#include <vector>
// -----------------------------------------------------------------------------
template< typename scalar_t >
void test_gelsd_work( Params& params, bool run )
{
using real_t = blas::real_type< scalar_t >;
// get & mark input values
int64_t m = params.dim.m();
int64_t n = params.dim.n();
int64_t nrhs = params.nrhs();
int64_t align = params.align();
params.matrix.mark();
real_t eps = std::numeric_limits< real_t >::epsilon();
real_t tol = params.tol() * eps;
// mark non-standard output values
params.ref_time();
// params.ref_gflops();
// params.gflops();
params.error2();
if (! run)
return;
// ---------- setup
int64_t lda = roundup( blas::max( 1, m ), align );
int64_t ldb = roundup( blas::max( 1, m, n ), align );
real_t rcond = -1; // use machine epsilon
int64_t rank_tst;
lapack_int rank_ref;
size_t size_A = (size_t) ( lda * n);
size_t size_B = (size_t) ( ldb * nrhs );
size_t size_S = (size_t) blas::min( m, n );
std::vector< scalar_t > A_tst( size_A );
std::vector< scalar_t > A_ref( size_A );
std::vector< scalar_t > B_tst( size_B );
std::vector< scalar_t > B_ref( size_B );
std::vector< real_t > S_tst( size_S );
std::vector< real_t > S_ref( size_S );
lapack::generate_matrix( params.matrix, m, n, &A_tst[0], lda );
int64_t idist = 1;
int64_t iseed[4] = { 0, 1, 2, 3 };
lapack::larnv( idist, iseed, B_tst.size(), &B_tst[0] );
A_ref = A_tst;
B_ref = B_tst;
// ---------- run test
testsweeper::flush_cache( params.cache() );
double time = testsweeper::get_wtime();
int64_t info_tst = lapack::gelsd( m, n, nrhs, &A_tst[0], lda, &B_tst[0], ldb, &S_tst[0], rcond, &rank_tst );
time = testsweeper::get_wtime() - time;
if (info_tst != 0) {
fprintf( stderr, "lapack::gelsd returned error %lld\n", llong( info_tst ) );
}
params.time() = time;
// double gflop = lapack::Gflop< scalar_t >::gelsd( m, n, nrhs );
// params.gflops() = gflop / time;
if (params.check() == 'y') {
// ---------- check error
real_t error[2];
check_gels( false, blas::Op::NoTrans, m, n, nrhs,
&A_ref[0], lda, // original A
&B_tst[0], ldb, // X
&B_ref[0], ldb, // original B
error );
params.error() = error[0];
params.error2() = error[1];
params.okay() = (error[0] < tol) && (error[1] < tol);
}
if (params.ref() == 'y') {
// ---------- run reference
testsweeper::flush_cache( params.cache() );
time = testsweeper::get_wtime();
int64_t info_ref = LAPACKE_gelsd( m, n, nrhs, &A_ref[0], lda, &B_ref[0], ldb, &S_ref[0], rcond, &rank_ref );
time = testsweeper::get_wtime() - time;
if (info_ref != 0) {
fprintf( stderr, "LAPACKE_gelsd returned error %lld\n", llong( info_ref ) );
}
params.ref_time() = time;
// params.ref_gflops() = gflop / time;
}
}
// -----------------------------------------------------------------------------
void test_gelsd( Params& params, bool run )
{
switch (params.datatype()) {
case testsweeper::DataType::Single:
test_gelsd_work< float >( params, run );
break;
case testsweeper::DataType::Double:
test_gelsd_work< double >( params, run );
break;
case testsweeper::DataType::SingleComplex:
test_gelsd_work< std::complex<float> >( params, run );
break;
case testsweeper::DataType::DoubleComplex:
test_gelsd_work< std::complex<double> >( params, run );
break;
default:
throw std::runtime_error( "unknown datatype" );
break;
}
}
|
