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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 "lapack/flops.hh"
#include "print_matrix.hh"
#include "error.hh"
#include "lapacke_wrappers.hh"
#include <vector>
#if LAPACK_VERSION >= 30400 // >= 3.4.0
// -----------------------------------------------------------------------------
template< typename scalar_t >
void test_tprfb_work( Params& params, bool run )
{
using real_t = blas::real_type< scalar_t >;
// get & mark input values
lapack::Side side = params.side();
lapack::Op trans = params.trans();
lapack::Direction direction = params.direction();
lapack::StoreV storev = params.storev();
int64_t m = params.dim.m();
int64_t n = params.dim.n();
int64_t k = params.dim.k();
int64_t l = params.l();
int64_t align = params.align();
// mark non-standard output values
params.ref_time();
//params.ref_gflops();
//params.gflops();
params.msg();
if (! run)
return;
// skip invalid sizes
if (k < l) {
params.msg() = "skipping: requires k >= l";
return;
}
// ---------- setup
// B is m-by-n
// V is m-by-k (left, columnwise)
// or n-by-k (right, columnwise)
// or k-by-m (left, rowwise)
// or k-by-n (right, rowwise)
// T is k-by-k
// A is k-by-n (left)
// or m-by-k (right)
int64_t Vm, Vn;
if (storev == lapack::StoreV::Columnwise) {
Vm = (side == blas::Side::Left ? m : n);
Vn = k;
}
else {
Vm = k;
Vn = (side == blas::Side::Left ? m : n);
}
int64_t Am = (side == blas::Side::Left ? k : m);
int64_t An = (side == blas::Side::Left ? n : k);
int64_t ldv = roundup( blas::max( 1, Vm ), align );
int64_t ldt = roundup( blas::max( 1, k ), align );
int64_t lda = roundup( blas::max( 1, Am ), align );
int64_t ldb = roundup( blas::max( 1, m ), align );
size_t size_V = (size_t) ldv * Vn;
size_t size_T = (size_t) ldt * k;
size_t size_A = (size_t) lda * An;
size_t size_B = (size_t) ldb * n;
std::vector< scalar_t > V( size_V );
std::vector< scalar_t > T( size_T );
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 );
int64_t idist = 1;
int64_t iseed[4] = { 0, 1, 2, 3 };
lapack::larnv( idist, iseed, V.size(), &V[0] );
lapack::larnv( idist, iseed, T.size(), &T[0] );
lapack::larnv( idist, iseed, A_tst.size(), &A_tst[0] );
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();
lapack::tprfb( side, trans, direction, storev, m, n, k, l, &V[0], ldv, &T[0], ldt, &A_tst[0], lda, &B_tst[0], ldb );
time = testsweeper::get_wtime() - time;
// internal routine: no argument check so no info.
//if (info_tst != 0) {
// fprintf( stderr, "lapack::tprfb returned error %lld\n", llong( info_tst ) );
//}
params.time() = time;
//double gflop = lapack::Gflop< scalar_t >::larfb( side, trans, direction, storev, m, n, k );
//params.gflops() = gflop / time;
if (params.ref() == 'y' || params.check() == 'y') {
// ---------- run reference
testsweeper::flush_cache( params.cache() );
time = testsweeper::get_wtime();
int64_t info_ref = LAPACKE_tprfb( to_char( side ), to_char( trans ), to_char( direction ), to_char( storev ), m, n, k, l, &V[0], ldv, &T[0], ldt, &A_ref[0], lda, &B_ref[0], ldb );
time = testsweeper::get_wtime() - time;
if (info_ref != 0) {
fprintf( stderr, "LAPACKE_tprfb returned error %lld\n", llong( info_ref ) );
}
params.ref_time() = time;
//params.ref_gflops() = gflop / 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( B_tst, B_ref );
params.error() = error;
params.okay() = (error == 0); // expect lapackpp == lapacke
}
}
// -----------------------------------------------------------------------------
void test_tprfb( Params& params, bool run )
{
switch (params.datatype()) {
case testsweeper::DataType::Single:
test_tprfb_work< float >( params, run );
break;
case testsweeper::DataType::Double:
test_tprfb_work< double >( params, run );
break;
case testsweeper::DataType::SingleComplex:
test_tprfb_work< std::complex<float> >( params, run );
break;
case testsweeper::DataType::DoubleComplex:
test_tprfb_work< std::complex<double> >( params, run );
break;
default:
throw std::runtime_error( "unknown datatype" );
break;
}
}
#else
// -----------------------------------------------------------------------------
void test_tprfb( Params& params, bool run )
{
fprintf( stderr, "tprfb requires LAPACK >= 3.4.0\n\n" );
exit(0);
}
#endif // LAPACK >= 3.4.0
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