mirror of
https://github.com/triqs/dft_tools
synced 2024-11-01 19:53:45 +01:00
9c129cb224
- done Matsubara freq for testing and rereading. - TODO: generalize to other meshes. - draft for multi var gf
105 lines
2.7 KiB
C++
105 lines
2.7 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/>.
|
|
*
|
|
******************************************************************************/
|
|
#define TRIQS_ARRAYS_ENFORCE_BOUNDCHECK
|
|
#include <iostream>
|
|
#include <type_traits>
|
|
#include <triqs/gfs.hpp>
|
|
#include <triqs/mpi.hpp>
|
|
#include <iostream>
|
|
#include <fstream>
|
|
#include <sstream>
|
|
|
|
using namespace triqs;
|
|
using namespace triqs::arrays;
|
|
using namespace triqs::gfs;
|
|
using namespace triqs::clef;
|
|
|
|
int main(int argc, char* argv[]) {
|
|
|
|
mpi::environment env(argc, argv);
|
|
mpi::communicator world;
|
|
|
|
std::ofstream out("node" + std::to_string(world.rank()));
|
|
|
|
double beta = 10;
|
|
int Nfreq = 8;
|
|
placeholder<0> w_;
|
|
|
|
auto g1 = gf<imfreq>{{beta, Fermion, Nfreq}, {1, 1}}; // using ARR = array<double,2>;
|
|
g1(w_) << 1 / (w_ + 1);
|
|
|
|
out << "g1.data" << g1.data() << std::endl;
|
|
|
|
{
|
|
out<< "reduction "<< std::endl;
|
|
gf<imfreq> g2 = mpi::reduce(g1, world);
|
|
out << g2.data()<<std::endl;
|
|
out << g2.singularity() << std::endl;
|
|
}
|
|
|
|
{
|
|
out<< "all reduction "<< std::endl;
|
|
gf<imfreq> g2 = mpi::allreduce(g1, world);
|
|
out << g2.data()<<std::endl;
|
|
out << g2.singularity() << std::endl;
|
|
}
|
|
|
|
{
|
|
out << "scatter-gather test with =" << std::endl;
|
|
auto g2 = g1;
|
|
auto g2b = g1;
|
|
|
|
g2 = mpi::scatter(g1);
|
|
g2(w_) << g2(w_) * (1 + world.rank());
|
|
g2b = mpi::gather(g2);
|
|
|
|
out << g2b.data() << std::endl;
|
|
}
|
|
|
|
{
|
|
out << "scatter-allgather test with construction" << std::endl;
|
|
|
|
gf<imfreq> g2 = mpi::scatter(g1);
|
|
g2(w_) << g2(w_) * (1 + world.rank());
|
|
g1 = mpi::allgather(g2);
|
|
|
|
out << g1.data() << std::endl;
|
|
}
|
|
|
|
{
|
|
out << "Building directly scattered, and gather" << std::endl;
|
|
auto m = mpi_scatter(gf_mesh<imfreq>{beta, Fermion, Nfreq}, world, 0);
|
|
auto g3 = gf<imfreq>{m, {1, 1}};
|
|
g3(w_) << 1 / (w_ + 1);
|
|
auto g4 = g3;
|
|
out<< "chunk ..."<<std::endl;
|
|
out << g3.data() << std::endl;
|
|
out<< "gather"<<std::endl;
|
|
g4 = mpi::gather(g3);
|
|
out << g4.data() << std::endl;
|
|
out<< "allgather"<<std::endl;
|
|
g4 = mpi::allgather(g3);
|
|
out << g4.data() << std::endl;
|
|
}
|
|
|
|
}
|
|
|