/usr/include/fflas-ffpack/fflas/fflas_sparse/csr_hyb/csr_hyb_spmv.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
/*
* Copyright (C) 2014 the FFLAS-FFPACK group
*
* Written by Bastien Vialla <bastien.vialla@lirmm.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_fflas_sparse_CSR_HYB_spmv_INL
#define __FFLASFFPACK_fflas_sparse_CSR_HYB_spmv_INL
namespace FFLAS {
namespace sparse_details_impl {
template <class Field>
inline void fspmv(const Field &F, const Sparse<Field, SparseMatrix_t::CSR_HYB> &A, typename Field::ConstElement_ptr x_,
typename Field::Element_ptr y_, FieldCategories::GenericTag) {
assume_aligned(dat, A.dat, (size_t)Alignment::CACHE_LINE);
assume_aligned(col, A.col, (size_t)Alignment::CACHE_LINE);
assume_aligned(st, A.st, (size_t)Alignment::CACHE_LINE);
assume_aligned(x, x_, (size_t)Alignment::DEFAULT);
assume_aligned(y, y_, (size_t)Alignment::DEFAULT);
for (uint64_t i = 0; i < A.m; ++i) {
index_t start = st[4 * i], stop = st[4 * i + 1];
for (uint64_t j = start; j < stop; ++j) {
F.subin(y[i], x[col[j]]);
}
start = st[4 * i + 1], stop = st[4 * i + 2];
for (uint64_t j = start; j < stop; ++j) {
F.addin(y[i], x[col[j]]);
}
start = st[4 * i + 2], stop = st[4 * (i + 1)];
index_t startDat = st[4 * i + 3];
for (uint64_t j = start, k = 0; j < stop; ++j, ++k) {
F.axpyin(y[i], dat[startDat + k], x[col[j]]);
}
}
}
template <class Field>
inline void fspmv(const Field &F, const Sparse<Field, SparseMatrix_t::CSR_HYB> &A, typename Field::ConstElement_ptr x_,
typename Field::Element_ptr y_, FieldCategories::UnparametricTag) {
assume_aligned(dat, A.dat, (size_t)Alignment::CACHE_LINE);
assume_aligned(col, A.col, (size_t)Alignment::CACHE_LINE);
assume_aligned(st, A.st, (size_t)Alignment::CACHE_LINE);
assume_aligned(x, x_, (size_t)Alignment::DEFAULT);
assume_aligned(y, y_, (size_t)Alignment::DEFAULT);
for (uint64_t i = 0; i < A.m; ++i) {
index_t start = st[4 * i], stop = st[4 * i + 1];
index_t diff = stop - start;
typename Field::Element y1 = 0, y2 = 0, y3 = 0, y4 = 0;
uint64_t j = 0;
for (; j < ROUND_DOWN(diff, 4); j += 4) {
y1 += x[col[start + j]];
y2 += x[col[start + j + 1]];
y3 += x[col[start + j + 2]];
y4 += x[col[start + j + 3]];
}
for (; j < diff; ++j) {
y1 += x[col[start + j]];
}
y[i] -= y1 + y2 + y3 + y4;
y1 = 0;
y2 = 0;
y3 = 0;
y4 = 0;
start = st[4 * i + 1], stop = st[4 * i + 2];
diff = stop - start;
j = 0;
for (; j < ROUND_DOWN(diff, 4); j += 4) {
y1 += x[col[start + j]];
y2 += x[col[start + j + 1]];
y3 += x[col[start + j + 2]];
y4 += x[col[start + j + 3]];
}
for (; j < diff; ++j) {
y1 += x[col[start + j]];
}
y[i] += y1 + y2 + y3 + y4;
y1 = 0;
y2 = 0;
y3 = 0;
y4 = 0;
start = st[4 * i + 2], stop = st[4 * (i + 1)];
diff = stop - start;
index_t startDat = st[4 * i + 3];
j = 0;
for (; j < ROUND_DOWN(diff, 4); j += 4) {
y1 += dat[startDat + j] * x[col[start + j]];
y2 += dat[startDat + j + 1] * x[col[start + j + 1]];
y3 += dat[startDat + j + 2] * x[col[start + j + 2]];
y4 += dat[startDat + j + 3] * x[col[start + j + 3]];
}
for (; j < diff; ++j) {
y1 += dat[startDat + j] * x[col[start + j]];
}
y[i] += y1 + y2 + y3 + y4;
}
}
template <class Field>
inline void fspmv(const Field &F, const Sparse<Field, SparseMatrix_t::CSR_HYB> &A, typename Field::ConstElement_ptr x_,
typename Field::Element_ptr y_, const uint64_t kmax) {
return;
// TODO
}
} // CSR_HYB_details
} // FFLAS
#endif // __FFLASFFPACK_fflas_CSR_HYB_spmv_INL
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