mirror of
https://github.com/triqs/dft_tools
synced 2024-12-27 06:43:40 +01:00
79 lines
2.1 KiB
C++
79 lines
2.1 KiB
C++
/*******************************************************************************
|
|
*
|
|
* TRIQS: a Toolbox for Research in Interacting Quantum Systems
|
|
*
|
|
* Copyright (C) 2013 by O. Parcollet
|
|
*
|
|
* TRIQS 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.
|
|
*
|
|
* TRIQS 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
|
|
* TRIQS. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
******************************************************************************/
|
|
#include <iostream>
|
|
#include <type_traits>
|
|
#include <triqs/arrays.hpp>
|
|
#include <triqs/mpi.hpp>
|
|
#include <iostream>
|
|
#include <fstream>
|
|
#include <sstream>
|
|
|
|
using namespace triqs;
|
|
using namespace triqs::arrays;
|
|
using namespace triqs::mpi;
|
|
|
|
template <typename T>
|
|
std::ostream & operator << (std::ostream & out, std::vector<T> const & v) {
|
|
for (size_t i =0; i<v.size(); ++i) out<< v[i];
|
|
return out;
|
|
}
|
|
|
|
int main(int argc, char* argv[]) {
|
|
|
|
mpi::environment env(argc, argv);
|
|
mpi::communicator world;
|
|
|
|
// using ARR = array<double,2>;
|
|
using VEC = std::vector<std::complex<double>>;
|
|
|
|
VEC A(7), B(7), AA(7);
|
|
|
|
clef::placeholder<0> i_;
|
|
clef::placeholder<1> j_;
|
|
|
|
triqs::clef::make_expr(A)[i_] << i_+1;
|
|
|
|
B = mpi::scatter(A, world);
|
|
|
|
VEC C = mpi::scatter(A, world);
|
|
|
|
std::ofstream out("node" + std::to_string(world.rank()));
|
|
out << " A = " << A << std::endl;
|
|
out << " B = " << B << std::endl;
|
|
out << " C = " << C << std::endl;
|
|
|
|
for(auto &x: B) x *= -1;
|
|
for(auto &x: AA) x = 0;
|
|
|
|
AA = mpi::gather(B, world);
|
|
out << " AA = " << AA << std::endl;
|
|
|
|
mpi::broadcast(AA, world);
|
|
out << " cast AA = " << AA << std::endl;
|
|
|
|
for (auto &x : AA) x = 0;
|
|
|
|
AA = mpi::allgather(B, world);
|
|
out << " AA = " << AA << std::endl;
|
|
|
|
}
|
|
|