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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 "blas/flops.hh"
#include "print_matrix.hh"
#include "check_gemm2.hh"
#include "cblas_wrappers.hh"
// -----------------------------------------------------------------------------
template< typename TA, typename TX, typename TY >
void test_symv_work( Params& params, bool run )
{
using namespace testsweeper;
using namespace blas;
using blas::real;
using blas::imag;
using scalar_t = blas::scalar_type<TA, TX, TY>;
using real_t = blas::real_type<scalar_t>;
// get & mark input values
blas::Layout layout = params.layout();
blas::Uplo uplo = params.uplo();
scalar_t alpha = params.alpha.get<scalar_t>();
scalar_t beta = params.beta.get<scalar_t>();
int64_t n = params.dim.n();
int64_t incx = params.incx();
int64_t incy = params.incy();
int64_t align = params.align();
int64_t verbose = params.verbose();
// mark non-standard output values
params.gflops();
params.gbytes();
params.ref_time();
params.ref_gflops();
params.ref_gbytes();
// adjust header to msec
params.time.name( "time (ms)" );
params.ref_time.name( "time (ms)" );
if (! run)
return;
// setup
int64_t lda = roundup( n, align );
size_t size_A = size_t(lda)*n;
size_t size_x = (n - 1) * std::abs(incx) + 1;
size_t size_y = (n - 1) * std::abs(incy) + 1;
std::vector<TA> A ( size_A );
std::vector<TX> x ( size_x );
std::vector<TY> y ( size_y );
std::vector<TY> yref( size_y );
int64_t idist = 1;
int64_t iseed[4] = { 0, 1, 2, 3 };
lapack::generate_matrix( params.matrix, n, n, &A[0], lda );
lapack::larnv( idist, iseed, x.size(), &x[0] );
lapack::larnv( idist, iseed, y.size(), &y[0] );
yref = y;
// norms for error check
real_t Anorm = lapack::lansy( lapack::Norm::Fro, uplo, n, &A[0], lda );
real_t Xnorm = blas::nrm2( n, &x[0], std::abs(incx) );
real_t Ynorm = blas::nrm2( n, &y[0], std::abs(incy) );
// test error exits
if (params.error_exit() == 'y') {
using blas::Layout;
using blas::Uplo;
assert_throw( blas::symv( Layout(0), uplo, n, alpha, &A[0], lda, &x[0], incx, beta, &y[0], incy ), blas::Error );
assert_throw( blas::symv( layout, Uplo(0), n, alpha, &A[0], lda, &x[0], incx, beta, &y[0], incy ), blas::Error );
assert_throw( blas::symv( layout, uplo, -1, alpha, &A[0], lda, &x[0], incx, beta, &y[0], incy ), blas::Error );
assert_throw( blas::symv( layout, uplo, n, alpha, &A[0], n-1, &x[0], incx, beta, &y[0], incy ), blas::Error );
assert_throw( blas::symv( layout, uplo, n, alpha, &A[0], lda, &x[0], 0, beta, &y[0], incy ), blas::Error );
assert_throw( blas::symv( layout, uplo, n, alpha, &A[0], lda, &x[0], incx, beta, &y[0], 0 ), blas::Error );
}
if (verbose >= 1) {
printf( "\n"
"A n=%5lld, lda=%5lld, size=%10lld, norm=%.2e\n"
"x n=%5lld, inc=%5lld, size=%10lld, norm=%.2e\n"
"y n=%5lld, inc=%5lld, size=%10lld, norm=%.2e\n",
llong( n ), llong( lda ), llong( size_A ), Anorm,
llong( n ), llong( incx ), llong( size_x ), Xnorm,
llong( n ), llong( incy ), llong( size_y ), Ynorm );
}
if (verbose >= 2) {
printf( "alpha = %.4e + %.4ei; beta = %.4e + %.4ei;\n",
real(alpha), imag(alpha),
real(beta), imag(beta) );
printf( "A = " ); print_matrix( n, n, &A[0], lda );
printf( "x = " ); print_vector( n, &x[0], incx );
printf( "y = " ); print_vector( n, &y[0], incy );
}
// run test
testsweeper::flush_cache( params.cache() );
double time = get_wtime();
blas::symv( layout, uplo, n, alpha, &A[0], lda, &x[0], incx, beta, &y[0], incy );
time = get_wtime() - time;
double gflop = Gflop < scalar_t >::symv( n );
double gbyte = Gbyte < scalar_t >::symv( n );
params.time() = time * 1000; // msec
params.gflops() = gflop / time;
params.gbytes() = gbyte / time;
if (verbose >= 2) {
printf( "y2 = " ); print_vector( n, &y[0], incy );
}
if (params.check() == 'y') {
// run reference
testsweeper::flush_cache( params.cache() );
time = get_wtime();
cblas_symv( cblas_layout_const(layout), cblas_uplo_const(uplo), n,
alpha, &A[0], lda, &x[0], incx, beta, &yref[0], incy );
time = get_wtime() - time;
params.ref_time() = time * 1000; // msec
params.ref_gflops() = gflop / time;
params.ref_gbytes() = gbyte / time;
if (verbose >= 2) {
printf( "yref = " ); print_vector( n, &yref[0], incy );
}
// check error compared to reference
// treat y as 1 x leny matrix with ld = incy; k = lenx is reduction dimension
real_t error;
int64_t okay;
check_gemm( 1, n, n,
alpha, beta,
Anorm, Xnorm, Ynorm,
&yref[0], std::abs(incy),
&y[0], std::abs(incy),
&error, &okay );
params.error() = error;
params.okay() = okay;
}
}
// -----------------------------------------------------------------------------
void test_symv( Params& params, bool run )
{
switch (params.datatype()) {
case testsweeper::DataType::Single:
test_symv_work< float, float, float >( params, run );
break;
case testsweeper::DataType::Double:
test_symv_work< double, double, double >( params, run );
break;
case testsweeper::DataType::SingleComplex:
test_symv_work< std::complex<float>, std::complex<float>,
std::complex<float> >( params, run );
break;
case testsweeper::DataType::DoubleComplex:
test_symv_work< std::complex<double>, std::complex<double>,
std::complex<double> >( params, run );
break;
default:
throw std::runtime_error( "unknown datatype" );
break;
}
}
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