mirror of
https://github.com/triqs/dft_tools
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68 lines
2.0 KiB
C++
68 lines
2.0 KiB
C++
/*******************************************************************************
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*
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* TRIQS: a Toolbox for Research in Interacting Quantum Systems
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*
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* Copyright (C) 2011 by O. Parcollet
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*
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* TRIQS is free software: you can redistribute it and/or modify it under the
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* terms of the GNU General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later
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* version.
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*
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* TRIQS is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* TRIQS. If not, see <http://www.gnu.org/licenses/>.
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*
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******************************************************************************/
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#include <triqs/arrays/matrix.hpp>
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#include <triqs/arrays/array.hpp>
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using namespace triqs::arrays;
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using namespace triqs;
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const int N1= 200, N2 = 300;
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namespace tqa=triqs::arrays; namespace tql=triqs::clef;
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struct plain {
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void operator()() {
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triqs::arrays::array<double,2> A (N1,N2,FORTRAN_LAYOUT);
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for (int u =0; u<5000; ++u)
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{
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for (int j=0; j<N2; ++j)
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for (int i =0; i<N1; ++i)
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A(i,j) = i+ 2*j;
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}
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}
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};
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struct lazy {
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void operator()() {
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tql::placeholder<0> i_; tql::placeholder<1> j_;
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triqs::arrays::array<double,2,TRAVERSAL_ORDER_FORTRAN> A (N1,N2,FORTRAN_LAYOUT);
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for (int u =0; u<5000; ++u)
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A(i_,j_) << i_+ 2*j_;
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}
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};
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struct foreach_lambda {
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void operator()() {
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triqs::arrays::array<double,2,TRAVERSAL_ORDER_FORTRAN> A (N1,N2,FORTRAN_LAYOUT);
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for (int u =0; u<5000; ++u)
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//assign_foreach(A, [](size_t i, size_t j) { return i + 2.0*j;});
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assign_foreach(A, [](long i, long j) { return i + 2.0*j;});
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}
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};
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#include "./speed_tester.hpp"
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int main() {
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const int l = 100;
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speed_tester<plain> (l);
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speed_tester<lazy> (l);
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speed_tester<foreach_lambda> (l);
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return 0;
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}
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