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// 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 "print_matrix.hh"
#include "error.hh"
#include "lapacke_wrappers.hh"
#include <vector>
#if LAPACK_VERSION >= 30900 // >= 3.9.0
// -----------------------------------------------------------------------------
template< typename scalar_t >
void test_unhr_col_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 nb = params.nb();
int64_t align = params.align();
// mark non-standard output values
params.ref_time();
if (! run)
return;
// ---------- setup
int64_t lda = roundup( blas::max( 1, m ), align );
int64_t ldt = roundup( blas::max( 1, blas::min( nb, n ) ), align );
size_t size_A = (size_t) lda * n;
size_t size_T = (size_t) ldt * n;
size_t size_D = (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 > T_tst( size_T );
std::vector< scalar_t > T_ref( size_T );
std::vector< scalar_t > D_tst( size_D );
std::vector< scalar_t > D_ref( size_D );
int64_t idist = 1;
int64_t iseed[4] = { 0, 1, 2, 3 };
lapack::larnv( idist, iseed, A_tst.size(), &A_tst[0] );
A_ref = A_tst;
// ---------- run test
testsweeper::flush_cache( params.cache() );
double time = testsweeper::get_wtime();
int64_t info_tst = lapack::unhr_col(
m, n, nb, &A_tst[0], lda, &T_tst[0], ldt, &D_tst[0] );
time = testsweeper::get_wtime() - time;
if (info_tst != 0) {
fprintf( stderr, "lapack::unhr_col returned error %lld\n",
llong( info_tst ) );
}
params.time() = time;
if (params.ref() == 'y' || params.check() == 'y') {
#if LAPACK_VERSION >= 31200 || defined( LAPACK_HAVE_MKL )
// ---------- run reference
testsweeper::flush_cache( params.cache() );
time = testsweeper::get_wtime();
// min works around bug in LAPACK <= 3.12
int64_t info_ref = LAPACKE_unhr_col(
m, n, blas::min( nb, n ), &A_ref[0], lda, &T_ref[0], ldt, &D_ref[0] );
time = testsweeper::get_wtime() - time;
if (info_ref != 0) {
fprintf( stderr, "LAPACKE_unhr_col returned error %lld\n",
llong( info_ref ) );
}
params.ref_time() = time;
// ---------- check error compared to reference
real_t error = 0;
if (info_tst != info_ref) {
error = 1;
}
error += abs_error( A_tst, A_ref );
error += abs_error( T_tst, T_ref );
error += abs_error( D_tst, D_ref );
params.error() = error;
params.okay() = (error == 0); // expect lapackpp == lapacke
#else
// LAPACKE_unhr_col not yet in LAPACK
params.msg() = "check requires LAPACK >= 3.12 or Intel MKL";
#endif // LAPACK_HAVE_MKL
}
}
#endif // LAPACK >= 3.9.0
// -----------------------------------------------------------------------------
void test_unhr_col( Params& params, bool run )
{
#if LAPACK_VERSION >= 30900 // >= 3.9.0
switch (params.datatype()) {
case testsweeper::DataType::Single:
test_unhr_col_work< float >( params, run );
break;
case testsweeper::DataType::Double:
test_unhr_col_work< double >( params, run );
break;
case testsweeper::DataType::SingleComplex:
test_unhr_col_work< std::complex<float> >( params, run );
break;
case testsweeper::DataType::DoubleComplex:
test_unhr_col_work< std::complex<double> >( params, run );
break;
default:
throw std::runtime_error( "unknown datatype" );
break;
}
#else
fprintf( stderr, "unhr_col requires LAPACK >= 3.9.0\n\n" );
exit(0);
#endif
}
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