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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 TX, typename TY>
void test_dot_device_work( Params& params, bool run )
{
using namespace testsweeper;
using std::real;
using std::imag;
using scalar_t = blas::scalar_type< TX, TY >;
using real_t = blas::real_type< scalar_t >;
// get & mark input values
int64_t n = params.dim.n();
int64_t incx = params.incx();
int64_t incy = params.incy();
int64_t verbose = params.verbose();
int64_t device = params.device();
char mode = params.pointer_mode();
scalar_t result_host;
scalar_t* result = &result_host;
// 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( "ref time (ms)" );
params.ref_time.width( 13 );
if (! run)
return;
if (blas::get_device_count() == 0) {
params.msg() = "skipping: no GPU devices or no GPU support";
return;
}
// setup
size_t size_x = (n - 1) * std::abs(incx) + 1;
size_t size_y = (n - 1) * std::abs(incy) + 1;
TX* x = new TX[ size_x ];
TY* y = new TY[ size_y ];
int64_t idist = 1;
int iseed[4] = { 0, 0, 0, 1 };
lapack_larnv( idist, iseed, size_x, x );
lapack_larnv( idist, iseed, size_y, y );
// norms for error check
real_t Xnorm = cblas_nrm2( n, x, std::abs(incx) );
real_t Ynorm = cblas_nrm2( n, y, std::abs(incy) );
// device specifics
blas::Queue queue( device );
TX* dx;
TY* dy;
dx = blas::device_malloc<TX>( size_x, queue );
dy = blas::device_malloc<TY>( size_y, queue );
blas::device_copy_vector( n, x, std::abs(incx), dx, std::abs(incx), queue );
blas::device_copy_vector( n, y, std::abs(incy), dy, std::abs(incy), queue );
queue.sync();
if (mode == 'd') {
result = blas::device_malloc<scalar_t>( 1, queue );
#if defined( BLAS_HAVE_CUBLAS )
cublasSetPointerMode( queue.handle(), CUBLAS_POINTER_MODE_DEVICE );
#elif defined( BLAS_HAVE_ROCBLAS )
rocblas_set_pointer_mode( queue.handle(), rocblas_pointer_mode_device );
#endif
}
// test error exits
assert_throw( blas::dot( -1, x, incx, y, incy, result, queue ), blas::Error );
assert_throw( blas::dot( n, x, 0, y, incy, result, queue ), blas::Error );
assert_throw( blas::dot( n, x, incx, y, 0, result, queue ), blas::Error );
if (verbose >= 1) {
printf( "\n"
"x n=%5lld, inc=%5lld, size=%10lld, norm %.2e\n"
"y n=%5lld, inc=%5lld, size=%10lld, norm %.2e\n",
llong( n ), llong( incx ), llong( size_x ), Xnorm,
llong( n ), llong( incy ), llong( size_y ), Ynorm );
}
if (verbose >= 2) {
printf( "x = " ); print_vector( n, x, incx );
printf( "y = " ); print_vector( n, y, incy );
}
// run test
testsweeper::flush_cache( params.cache() );
double time = get_wtime();
blas::dot( n, dx, incx, dy, incy, result, queue );
queue.sync();
time = get_wtime() - time;
if (mode == 'd') {
device_memcpy( &result_host, result, 1, queue );
}
double gflop = blas::Gflop<scalar_t>::dot( n );
double gbyte = blas::Gbyte<scalar_t>::dot( n );
params.time() = time * 1000; // msec
params.gflops() = gflop / time;
params.gbytes() = gbyte / time;
if (verbose >= 1) {
printf( "dot = %.4e + %.4ei\n", real(result_host), imag(result_host) );
}
if (params.check() == 'y') {
// run reference
testsweeper::flush_cache( params.cache() );
time = get_wtime();
scalar_t ref = cblas_dot( n, x, incx, y, incy );
time = get_wtime() - time;
params.ref_time() = time * 1000; // msec
params.ref_gflops() = gflop / time;
params.ref_gbytes() = gbyte / time;
if (verbose >= 1) {
printf( "ref = %.4e + %.4ei\n", real(ref), imag(ref) );
}
// check error compared to reference
// treat result as 1 x 1 matrix; k = n is reduction dimension
// alpha=1, beta=0, Cnorm=0
real_t error;
bool okay;
check_gemm( 1, 1, n, scalar_t(1), scalar_t(0), Xnorm, Ynorm, real_t(0),
&ref, 1, &result_host, 1, verbose, &error, &okay );
params.error() = error;
params.okay() = okay;
}
delete[] x;
delete[] y;
blas::device_free( dx, queue );
blas::device_free( dy, queue );
if (mode == 'd')
blas::device_free( result, queue );
}
// -----------------------------------------------------------------------------
void test_dot_device( Params& params, bool run )
{
switch (params.datatype()) {
case testsweeper::DataType::Single:
test_dot_device_work< float, float >( params, run );
break;
case testsweeper::DataType::Double:
test_dot_device_work< double, double >( params, run );
break;
case testsweeper::DataType::SingleComplex:
test_dot_device_work< std::complex<float>, std::complex<float> >
( params, run );
break;
case testsweeper::DataType::DoubleComplex:
test_dot_device_work< std::complex<double>, std::complex<double> >
( params, run );
break;
default:
throw std::exception();
break;
}
}
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