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/*
* Copyright (C) 2014, The University of Texas at Austin
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - Neither the name of The University of Texas at Austin nor the names
* of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/*
* Copyright (C) 2014-2015, Michael Lehn
*
* ulmBLAS adopted general ideas from BLIS. Using micro kernels from BLIS
* only requires minor modifications,
*
*/
#ifndef ULMBLAS_IMPL_LEVEL3_TRLSM_TCC
#define ULMBLAS_IMPL_LEVEL3_TRLSM_TCC 1
#include <ulmblas/impl/auxiliary/memorypool.h>
#include <ulmblas/impl/config/blocksize.h>
#include <ulmblas/impl/level1extensions/gescal.h>
#include <ulmblas/impl/level3/mkernel/mgemm.h>
#include <ulmblas/impl/level3/mkernel/mtrlsm.h>
#include <ulmblas/impl/level3/ukernel/ugemm.h>
#include <ulmblas/impl/level3/pack/gepack.h>
#include <ulmblas/impl/level3/pack/trlspack.h>
#include <ulmblas/impl/level3/trlsm.h>
namespace ulmBLAS {
template <typename IndexType, typename Alpha, typename TA, typename TB>
void
trlsm(IndexType m,
IndexType n,
const Alpha &alpha,
bool conjA,
bool unitDiag,
const TA *A,
IndexType incRowA,
IndexType incColA,
TB *B,
IndexType incRowB,
IndexType incColB)
{
typedef typename std::common_type<Alpha, TA, TB>::type T_;
typedef typename std::remove_const<T_>::type T;
const IndexType MC = BlockSize<T>::MC;
const IndexType NC = BlockSize<T>::NC;
const IndexType MR = BlockSizeUGemm<T>::MR;
const IndexType NR = BlockSizeUGemm<T>::NR;
const IndexType mb = (m+MC-1) / MC;
const IndexType nb = (n+NC-1) / NC;
const IndexType mc_ = m % MC;
const IndexType nc_ = n % NC;
static MemoryPool<T> memoryPool;
if (alpha==Alpha(0)) {
gescal(m, n, Alpha(0), B, incRowB, incColB);
return;
}
T *A_ = memoryPool.allocate(MC*MC+MR);
T *B_ = memoryPool.allocate(MC*NC+NR);
for (IndexType j=0; j<nb; ++j) {
IndexType nc = (j!=nb-1 || nc_==0) ? NC : nc_;
for (IndexType i=0; i<mb; ++i) {
IndexType mc = (i!=mb-1 || mc_==0) ? MC : mc_;
Alpha alpha_ = (i==0) ? alpha : Alpha(1);
gepack_B(mc, nc, false,
&B[i*MC*incRowB+j*NC*incColB], incRowB, incColB,
B_);
//std::cerr << "-- trlsm ----------" << std::endl;
//printMatrix(mc, mc, &A[i*MC*(incRowA+incColA)], incRowA, incColA);
trlspack(mc, conjA, unitDiag,
&A[i*MC*(incRowA+incColA)], incRowA, incColA,
A_);
//printMatrix(MR, (MC*MC/MR), A_, 1, MR);
mtrlsm(mc, nc, T(alpha_), A_, B_,
&B[i*MC*incRowB+j*NC*incColB], incRowB, incColB);
for (IndexType l=i+1; l<mb; ++l) {
mc = (l!=mb-1 || mc_==0) ? MC : mc_;
gepack_A(mc, MC, conjA,
&A[l*MC*incRowA+i*MC*incColA], incRowA, incColA,
A_);
mgemm(mc, nc, MC, T(-1), A_, B_, alpha_,
&B[l*MC*incRowB+j*NC*incColB], incRowB, incColB);
}
}
}
memoryPool.release(A_);
memoryPool.release(B_);
}
} // namespace ulmBLAS
#endif // ULMBLAS_IMPL_LEVEL3_TRLSM_TCC
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