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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 "cblas_wrappers.hh"
#include "lapack_wrappers.hh"
#include "blas/flops.hh"
#include "print_matrix.hh"
#include "check_gemm.hh"
// -----------------------------------------------------------------------------
template <typename TA, typename TB, typename TC>
void test_gemm_work( Params& params, bool run )
{
using namespace testsweeper;
using std::real;
using std::imag;
using blas::Op;
using blas::Layout;
using scalar_t = blas::scalar_type< TA, TB, TC >;
using real_t = blas::real_type< scalar_t >;
// get & mark input values
blas::Layout layout = params.layout();
blas::Op transA = params.transA();
blas::Op transB = params.transB();
scalar_t alpha = params.alpha.get<scalar_t>();
scalar_t beta = params.beta.get<scalar_t>();
int64_t m = params.dim.m();
int64_t n = params.dim.n();
int64_t k = params.dim.k();
int64_t align = params.align();
int64_t verbose = params.verbose();
// mark non-standard output values
params.gflops();
params.ref_time();
params.ref_gflops();
if (! run)
return;
// setup
int64_t Am = (transA == Op::NoTrans ? m : k);
int64_t An = (transA == Op::NoTrans ? k : m);
int64_t Bm = (transB == Op::NoTrans ? k : n);
int64_t Bn = (transB == Op::NoTrans ? n : k);
int64_t Cm = m;
int64_t Cn = n;
if (layout == Layout::RowMajor) {
std::swap( Am, An );
std::swap( Bm, Bn );
std::swap( Cm, Cn );
}
int64_t lda = roundup( Am, align );
int64_t ldb = roundup( Bm, align );
int64_t ldc = roundup( Cm, align );
size_t size_A = size_t(lda)*An;
size_t size_B = size_t(ldb)*Bn;
size_t size_C = size_t(ldc)*Cn;
TA* A = new TA[ size_A ];
TB* B = new TB[ size_B ];
TC* C = new TC[ size_C ];
TC* Cref = new TC[ size_C ];
int64_t idist = 1;
int iseed[4] = { 0, 0, 0, 1 };
lapack_larnv( idist, iseed, size_A, A );
lapack_larnv( idist, iseed, size_B, B );
lapack_larnv( idist, iseed, size_C, C );
lapack_lacpy( "g", Cm, Cn, C, ldc, Cref, ldc );
// norms for error check
real_t work[1];
real_t Anorm = lapack_lange( "f", Am, An, A, lda, work );
real_t Bnorm = lapack_lange( "f", Bm, Bn, B, ldb, work );
real_t Cnorm = lapack_lange( "f", Cm, Cn, C, ldc, work );
// test error exits
assert_throw( blas::gemm( Layout(0), transA, transB, m, n, k, alpha, A, lda, B, ldb, beta, C, ldc ), blas::Error );
assert_throw( blas::gemm( layout, Op(0), transB, m, n, k, alpha, A, lda, B, ldb, beta, C, ldc ), blas::Error );
assert_throw( blas::gemm( layout, transA, Op(0), m, n, k, alpha, A, lda, B, ldb, beta, C, ldc ), blas::Error );
assert_throw( blas::gemm( layout, transA, transB, -1, n, k, alpha, A, lda, B, ldb, beta, C, ldc ), blas::Error );
assert_throw( blas::gemm( layout, transA, transB, m, -1, k, alpha, A, lda, B, ldb, beta, C, ldc ), blas::Error );
assert_throw( blas::gemm( layout, transA, transB, m, n, -1, alpha, A, lda, B, ldb, beta, C, ldc ), blas::Error );
assert_throw( blas::gemm( Layout::ColMajor, Op::NoTrans, Op::NoTrans, m, n, k, alpha, A, m-1, B, ldb, beta, C, ldc ), blas::Error );
assert_throw( blas::gemm( Layout::ColMajor, Op::Trans, Op::NoTrans, m, n, k, alpha, A, k-1, B, ldb, beta, C, ldc ), blas::Error );
assert_throw( blas::gemm( Layout::ColMajor, Op::ConjTrans, Op::NoTrans, m, n, k, alpha, A, k-1, B, ldb, beta, C, ldc ), blas::Error );
assert_throw( blas::gemm( Layout::RowMajor, Op::NoTrans, Op::NoTrans, m, n, k, alpha, A, k-1, B, ldb, beta, C, ldc ), blas::Error );
assert_throw( blas::gemm( Layout::RowMajor, Op::Trans, Op::NoTrans, m, n, k, alpha, A, m-1, B, ldb, beta, C, ldc ), blas::Error );
assert_throw( blas::gemm( Layout::RowMajor, Op::ConjTrans, Op::NoTrans, m, n, k, alpha, A, m-1, B, ldb, beta, C, ldc ), blas::Error );
assert_throw( blas::gemm( Layout::ColMajor, Op::NoTrans, Op::NoTrans, m, n, k, alpha, A, lda, B, k-1, beta, C, ldc ), blas::Error );
assert_throw( blas::gemm( Layout::ColMajor, Op::NoTrans, Op::Trans, m, n, k, alpha, A, lda, B, n-1, beta, C, ldc ), blas::Error );
assert_throw( blas::gemm( Layout::ColMajor, Op::NoTrans, Op::ConjTrans, m, n, k, alpha, A, lda, B, n-1, beta, C, ldc ), blas::Error );
assert_throw( blas::gemm( Layout::RowMajor, Op::NoTrans, Op::NoTrans, m, n, k, alpha, A, lda, B, n-1, beta, C, ldc ), blas::Error );
assert_throw( blas::gemm( Layout::RowMajor, Op::NoTrans, Op::Trans, m, n, k, alpha, A, lda, B, k-1, beta, C, ldc ), blas::Error );
assert_throw( blas::gemm( Layout::RowMajor, Op::NoTrans, Op::ConjTrans, m, n, k, alpha, A, lda, B, k-1, beta, C, ldc ), blas::Error );
assert_throw( blas::gemm( Layout::ColMajor, transA, transB, m, n, k, alpha, A, lda, B, ldb, beta, C, m-1 ), blas::Error );
assert_throw( blas::gemm( Layout::RowMajor, transA, transB, m, n, k, alpha, A, lda, B, ldb, beta, C, n-1 ), blas::Error );
if (verbose >= 1) {
printf( "\n"
"A Am=%5lld, An=%5lld, lda=%5lld, size=%10lld, norm %.2e\n"
"B Bm=%5lld, Bn=%5lld, ldb=%5lld, size=%10lld, norm %.2e\n"
"C Cm=%5lld, Cn=%5lld, ldc=%5lld, size=%10lld, norm %.2e\n",
llong( Am ), llong( An ), llong( lda ), llong( size_A ), Anorm,
llong( Bm ), llong( Bn ), llong( ldb ), llong( size_B ), Bnorm,
llong( Cm ), llong( Cn ), llong( ldc ), llong( size_C ), Cnorm );
}
if (verbose >= 2) {
printf( "alpha = %.4e + %.4ei; beta = %.4e + %.4ei;\n",
real(alpha), imag(alpha),
real(beta), imag(beta) );
printf( "A = " ); print_matrix( Am, An, A, lda );
printf( "B = " ); print_matrix( Bm, Bn, B, ldb );
printf( "C = " ); print_matrix( Cm, Cn, C, ldc );
}
// run test
testsweeper::flush_cache( params.cache() );
double time = get_wtime();
blas::gemm( layout, transA, transB, m, n, k,
alpha, A, lda, B, ldb, beta, C, ldc );
time = get_wtime() - time;
double gflop = blas::Gflop< scalar_t >::gemm( m, n, k );
params.time() = time;
params.gflops() = gflop / time;
if (verbose >= 2) {
printf( "C2 = " ); print_matrix( Cm, Cn, C, ldc );
}
if (params.ref() == 'y' || params.check() == 'y') {
// run reference
testsweeper::flush_cache( params.cache() );
time = get_wtime();
cblas_gemm( cblas_layout_const(layout),
cblas_trans_const(transA),
cblas_trans_const(transB),
m, n, k, alpha, A, lda, B, ldb, beta, Cref, ldc );
time = get_wtime() - time;
params.ref_time() = time;
params.ref_gflops() = gflop / time;
if (verbose >= 2) {
printf( "Cref = " ); print_matrix( Cm, Cn, Cref, ldc );
}
// check error compared to reference
real_t error;
bool okay;
check_gemm( Cm, Cn, k, alpha, beta, Anorm, Bnorm, Cnorm,
Cref, ldc, C, ldc, verbose, &error, &okay );
params.error() = error;
params.okay() = okay;
}
delete[] A;
delete[] B;
delete[] C;
delete[] Cref;
}
// -----------------------------------------------------------------------------
void test_gemm( Params& params, bool run )
{
switch (params.datatype()) {
case testsweeper::DataType::Single:
test_gemm_work< float, float, float >( params, run );
break;
case testsweeper::DataType::Double:
test_gemm_work< double, double, double >( params, run );
break;
case testsweeper::DataType::SingleComplex:
test_gemm_work< std::complex<float>, std::complex<float>,
std::complex<float> >( params, run );
break;
case testsweeper::DataType::DoubleComplex:
test_gemm_work< std::complex<double>, std::complex<double>,
std::complex<double> >( params, run );
break;
default:
throw std::exception();
break;
}
}
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