/usr/include/fflas-ffpack/checkers/checker_fgemm.inl is in fflas-ffpack-common 2.2.2-5.
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// vim:sts=8:sw=8:ts=8:noet:sr:cino=>s,f0,{0,g0,(0,\:0,t0,+0,=s
/* checkers/checker_fgemm.inl
* Copyright (C) 2016 Ashley Lesdalons
*
* Written by Ashley Lesdalons <Ashley.Lesdalons@e.ujf-grenoble.fr>
*
*
* ========LICENCE========
* This file is part of the library FFLAS-FFPACK.
*
* FFLAS-FFPACK is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
* ========LICENCE========
*.
*/
#ifndef __FFLASFFPACK_checker_fgemm_INL
#define __FFLASFFPACK_checker_fgemm_INL
namespace FFLAS {
template <class Field>
class CheckerImplem_fgemm {
const Field& F;
const size_t m,n,k,ldc;
typename Field::Element_ptr v,w1;
public:
CheckerImplem_fgemm(const Field &F_,
const size_t m_, const size_t n_, const size_t k_,
const typename Field::Element beta,
typename Field::Element_ptr C, const size_t ldc_)
: F(F_), m(m_), n(n_), k(k_), ldc(ldc_), v(FFLAS::fflas_new(F_,n,1)),w1(FFLAS::fflas_new(F_,m,1))
{
typename Field::RandIter G(F);
init(G,beta,C);
}
CheckerImplem_fgemm(typename Field::RandIter &G,
const size_t m_, const size_t n_, const size_t k_,
const typename Field::Element beta,
typename Field::Element_ptr C, const size_t ldc_)
: F(G.ring()), m(m_), n(n_), k(k_), ldc(ldc_), v(FFLAS::fflas_new(F,n,1)),w1(FFLAS::fflas_new(F,m,1))
{
init(G,beta,C);
}
~CheckerImplem_fgemm() {
FFLAS::fflas_delete(v,w1);
}
inline bool check(const FFLAS::FFLAS_TRANSPOSE ta,
const FFLAS::FFLAS_TRANSPOSE tb,
const typename Field::Element alpha,
typename Field::ConstElement_ptr A, const size_t lda,
typename Field::ConstElement_ptr B, const size_t ldb,
typename Field::ConstElement_ptr C)
{
// w1 <- C.v - w1
FFLAS::fgemv(F, FFLAS::FflasNoTrans, m, n, F.one, C, ldc, v, 1, F.mOne, w1, 1);
// w2 <- B.v
typename Field::Element_ptr w2 = FFLAS::fflas_new(F,k,1);
FFLAS::fgemv(F, tb, k, n, F.one, B, ldb, v, 1, F.zero, w2, 1);
// w1 <- alpha.A.w2 - w1
FFLAS::fgemv(F, ta, m, k, alpha, A, lda, w2, 1, F.mOne, w1, 1);
FFLAS::fflas_delete(w2);
// is w1 == O ?
bool pass = FFLAS::fiszero(F, m, w1, 1);
if (!pass) throw FailureFgemmCheck();
return pass;
}
private:
inline void init(typename Field::RandIter &G, const typename Field::Element beta, typename Field::Element_ptr C) {
FFLAS::frand(F,G,n,v,1);
// w1 <- beta.C.v
FFLAS::fgemv(F, FFLAS::FflasNoTrans, m, n, beta, C, ldc, v, 1, F.zero, w1, 1);
}
};
}
#endif // __FFLASFFPACK_checker_fgemm_INL
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