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batch_herk.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 herk_internal
///
template <typename scalar_t>
void herk(
blas::Layout layout,
std::vector<blas::Uplo> const& uplo,
std::vector<blas::Op> const& trans,
std::vector<int64_t> const& n,
std::vector<int64_t> const& k,
std::vector< real_type<scalar_t> > const& alpha,
std::vector<scalar_t*> const& Aarray, std::vector<int64_t> const& lda,
std::vector< real_type<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 )
{
using real_t = real_type<scalar_t>;
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::herk_check(
layout, uplo, trans, n, k,
alpha, Aarray, lda, beta, Carray, ldc,
batch_size, info );
}
#pragma omp parallel for schedule( dynamic )
for (size_t i = 0; i < batch_size; ++i) {
blas::Uplo uplo_ = blas::batch::extract( uplo, i );
blas::Op trans_ = blas::batch::extract( trans, i );
int64_t n_ = blas::batch::extract( n, i );
int64_t k_ = blas::batch::extract( k, i );
int64_t lda_ = blas::batch::extract( lda, i );
int64_t ldc_ = blas::batch::extract( ldc, i );
real_t alpha_ = blas::batch::extract( alpha, i );
real_t beta_ = blas::batch::extract( beta, i );
scalar_t* A_ = blas::batch::extract( Aarray, i );
scalar_t* C_ = blas::batch::extract( Carray, i );
blas::herk( layout, uplo_, trans_, n_, k_,
alpha_, A_, lda_, beta_, C_, ldc_ );
}
}
} // namespace impl
//==============================================================================
// High-level overloaded wrappers call mid-level templated wrapper.
namespace batch {
//------------------------------------------------------------------------------
/// CPU, variable-size batched, float version.
/// @ingroup herk
void herk(
blas::Layout layout,
std::vector<blas::Uplo> const& uplo,
std::vector<blas::Op> const& trans,
std::vector<int64_t> const& n,
std::vector<int64_t> const& k,
std::vector<float > const& alpha,
std::vector<float*> const& Aarray, std::vector<int64_t> const& lda,
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::herk( layout, uplo, trans, n, k,
alpha, Aarray, lda, beta, Carray, ldc,
batch_size, info );
}
//------------------------------------------------------------------------------
/// CPU, variable-size batched, double version.
/// @ingroup herk
void herk(
blas::Layout layout,
std::vector<blas::Uplo> const& uplo,
std::vector<blas::Op> const& trans,
std::vector<int64_t> const& n,
std::vector<int64_t> const& k,
std::vector<double > const& alpha,
std::vector<double*> const& Aarray, std::vector<int64_t> const& lda,
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::herk( layout, uplo, trans, n, k,
alpha, Aarray, lda, beta, Carray, ldc,
batch_size, info );
}
//------------------------------------------------------------------------------
/// CPU, variable-size batched, complex<float> version.
/// @ingroup herk
void herk(
blas::Layout layout,
std::vector<blas::Uplo> const& uplo,
std::vector<blas::Op> const& trans,
std::vector<int64_t> const& n,
std::vector<int64_t> const& k,
std::vector< float > const& alpha,
std::vector< std::complex<float>* > const& Aarray, std::vector<int64_t> const& lda,
std::vector< 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::herk( layout, uplo, trans, n, k,
alpha, Aarray, lda, beta, Carray, ldc,
batch_size, info );
}
//------------------------------------------------------------------------------
/// CPU, variable-size batched, complex<double> version.
/// @ingroup herk
void herk(
blas::Layout layout,
std::vector<blas::Uplo> const& uplo,
std::vector<blas::Op> const& trans,
std::vector<int64_t> const& n,
std::vector<int64_t> const& k,
std::vector< double > const& alpha,
std::vector< std::complex<double>* > const& Aarray, std::vector<int64_t> const& lda,
std::vector< 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::herk( layout, uplo, trans, n, k,
alpha, Aarray, lda, beta, Carray, ldc,
batch_size, info );
}
} // namespace batch
} // namespace blas