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batch_hemm.cc
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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 "blas/batch_common.hh"
#include "blas.hh"
#include <limits>
namespace blas {
//==============================================================================
namespace impl {
//------------------------------------------------------------------------------
/// CPU, variable-size batched version.
/// Mid-level templated wrapper checks and converts arguments,
/// then makes individual routine calls in parallel.
/// @ingroup hemm_internal
///
template <typename scalar_t>
void hemm(
blas::Layout layout,
std::vector<blas::Side> const& side,
std::vector<blas::Uplo> const& uplo,
std::vector<int64_t> const& m,
std::vector<int64_t> const& n,
std::vector<scalar_t > const& alpha,
std::vector<scalar_t*> const& Aarray, std::vector<int64_t> const& lda,
std::vector<scalar_t*> const& Barray, std::vector<int64_t> const& ldb,
std::vector<scalar_t > const& beta,
std::vector<scalar_t*> const& Carray, std::vector<int64_t> const& ldc,
size_t batch_size,
std::vector<int64_t>& info )
{
blas_error_if( batch_size < 0 );
blas_error_if( info.size() != 0
&& info.size() != 1
&& info.size() != batch_size );
if (info.size() > 0) {
// perform error checking
blas::batch::hemm_check(
layout, side, uplo, m, n,
alpha, Aarray, lda, Barray, ldb, beta, Carray, ldc,
batch_size, info );
}
#pragma omp parallel for schedule( dynamic )
for (size_t i = 0; i < batch_size; ++i) {
blas::Side side_ = blas::batch::extract( side, i );
blas::Uplo uplo_ = blas::batch::extract( uplo, i );
int64_t m_ = blas::batch::extract( m, i );
int64_t n_ = blas::batch::extract( n, i );
int64_t lda_ = blas::batch::extract( lda, i );
int64_t ldb_ = blas::batch::extract( ldb, i );
int64_t ldc_ = blas::batch::extract( ldc, i );
scalar_t alpha_ = blas::batch::extract( alpha, i );
scalar_t beta_ = blas::batch::extract( beta, i );
scalar_t* A_ = blas::batch::extract( Aarray, i );
scalar_t* B_ = blas::batch::extract( Barray, i );
scalar_t* C_ = blas::batch::extract( Carray, i );
blas::hemm( layout, side_, uplo_, m_, n_,
alpha_, A_, lda_, B_, ldb_, beta_, C_, ldc_ );
}
}
} // namespace impl
//==============================================================================
// High-level overloaded wrappers call mid-level templated wrapper.
namespace batch {
//------------------------------------------------------------------------------
/// CPU, variable-size batched, float version.
/// @ingroup hemm
void hemm(
blas::Layout layout,
std::vector<blas::Side> const& side,
std::vector<blas::Uplo> const& uplo,
std::vector<int64_t> const& m,
std::vector<int64_t> const& n,
std::vector<float > const& alpha,
std::vector<float*> const& Aarray, std::vector<int64_t> const& lda,
std::vector<float*> const& Barray, std::vector<int64_t> const& ldb,
std::vector<float > const& beta,
std::vector<float*> const& Carray, std::vector<int64_t> const& ldc,
size_t batch_size,
std::vector<int64_t>& info )
{
impl::hemm( layout, side, uplo, m, n,
alpha, Aarray, lda, Barray, ldb, beta, Carray, ldc,
batch_size, info );
}
//------------------------------------------------------------------------------
/// CPU, variable-size batched, double version.
/// @ingroup hemm
void hemm(
blas::Layout layout,
std::vector<blas::Side> const& side,
std::vector<blas::Uplo> const& uplo,
std::vector<int64_t> const& m,
std::vector<int64_t> const& n,
std::vector<double > const& alpha,
std::vector<double*> const& Aarray, std::vector<int64_t> const& lda,
std::vector<double*> const& Barray, std::vector<int64_t> const& ldb,
std::vector<double > const& beta,
std::vector<double*> const& Carray, std::vector<int64_t> const& ldc,
size_t batch_size,
std::vector<int64_t>& info )
{
impl::hemm( layout, side, uplo, m, n,
alpha, Aarray, lda, Barray, ldb, beta, Carray, ldc,
batch_size, info );
}
//------------------------------------------------------------------------------
/// CPU, variable-size batched, complex<float> version.
/// @ingroup hemm
void hemm(
blas::Layout layout,
std::vector<blas::Side> const& side,
std::vector<blas::Uplo> const& uplo,
std::vector<int64_t> const& m,
std::vector<int64_t> const& n,
std::vector< std::complex<float> > const& alpha,
std::vector< std::complex<float>* > const& Aarray, std::vector<int64_t> const& lda,
std::vector< std::complex<float>* > const& Barray, std::vector<int64_t> const& ldb,
std::vector< std::complex<float> > const& beta,
std::vector< std::complex<float>* > const& Carray, std::vector<int64_t> const& ldc,
size_t batch_size,
std::vector<int64_t>& info )
{
impl::hemm( layout, side, uplo, m, n,
alpha, Aarray, lda, Barray, ldb, beta, Carray, ldc,
batch_size, info );
}
//------------------------------------------------------------------------------
/// CPU, variable-size batched, complex<double> version.
/// @ingroup hemm
void hemm(
blas::Layout layout,
std::vector<blas::Side> const& side,
std::vector<blas::Uplo> const& uplo,
std::vector<int64_t> const& m,
std::vector<int64_t> const& n,
std::vector< std::complex<double> > const& alpha,
std::vector< std::complex<double>* > const& Aarray, std::vector<int64_t> const& lda,
std::vector< std::complex<double>* > const& Barray, std::vector<int64_t> const& ldb,
std::vector< std::complex<double> > const& beta,
std::vector< std::complex<double>* > const& Carray, std::vector<int64_t> const& ldc,
size_t batch_size,
std::vector<int64_t>& info )
{
impl::hemm( layout, side, uplo, m, n,
alpha, Aarray, lda, Barray, ldb, beta, Carray, ldc,
batch_size, info );
}
} // namespace batch
} // namespace blas