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/*
* This file is a part of TiledArray.
* Copyright (C) 2014 Virginia Tech
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Justus Calvin
* Department of Chemistry, Virginia Tech
*
* sparse_shape_fixture.h
* Feb 23, 2014
*
*/
#ifndef TILEDARRAY_TEST_SPARSE_SHAPE_FIXTURE_H__INCLUDED
#define TILEDARRAY_TEST_SPARSE_SHAPE_FIXTURE_H__INCLUDED
#include "TiledArray/sparse_shape.h"
#include "range_fixture.h"
namespace TiledArray {
struct SparseShapeFixture : public TiledRangeFixture{
typedef std::vector<std::size_t> vec_type;
SparseShapeFixture() :
sparse_shape(make_shape(tr, 0.5, 42)),
left(make_shape(tr, 0.1, 23)),
right(make_shape(tr, 0.1, 82)),
perm(make_perm()),
perm_index(tr.tiles_range(), perm),
tolerance(0.0001)
{
SparseShape<float>::threshold(0.001);
}
~SparseShapeFixture() { }
static Tensor<float> make_norm_tensor(const TiledRange& trange, const float fill_percent, const int seed) {
GlobalFixture::world->srand(seed);
Tensor<float> norms(trange.tiles_range());
for(Tensor<float>::size_type i = 0ul; i < norms.size(); ++i) {
const Range range = trange.make_tile_range(i);
norms[i] = (GlobalFixture::world->rand() % 101);
norms[i] = std::sqrt(norms[i] * norms[i] * range.volume());
}
const std::size_t n = float(norms.size()) * (1.0 - fill_percent);
for(std::size_t i = 0ul; i < n; ++i) {
norms[GlobalFixture::world->rand() % norms.size()] = SparseShape<float>::threshold() * 0.1;
}
return norms;
}
static SparseShape<float> make_shape(const TiledRange& trange, const float fill_percent, const int seed) {
Tensor<float> tile_norms = make_norm_tensor(trange, fill_percent, seed);
return SparseShape<float>(tile_norms, trange);
}
static Permutation make_perm() {
std::array<unsigned int, GlobalFixture::dim> temp;
for(std::size_t i = 0; i < temp.size(); ++i)
temp[i] = i + 1;
temp.back() = 0;
return Permutation(temp.begin(), temp.end());
}
SparseShape<float> sparse_shape;
SparseShape<float> left;
SparseShape<float> right;
Permutation perm;
TiledArray::detail::PermIndex perm_index;
const float tolerance;
}; // SparseShapeFixture
} // namespace TiledArray
#endif // TILEDARRAY_TEST_SPARSE_SHAPE_FIXTURE_H__INCLUDED
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