mirror of
https://github.com/triqs/dft_tools
synced 2024-12-25 22:03:43 +01:00
98 lines
3.4 KiB
C++
98 lines
3.4 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) 2014 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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#pragma once
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#include "./base.hpp"
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namespace triqs {
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namespace mpi {
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//--------------------------------------------------------------------------------------------------------
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// When value_type is a basic type, we can directly call the C API
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template <typename G> struct mpi_impl_triqs_gfs {
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//---------
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static void reduce_in_place(communicator c, G &g, int root) {
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triqs::mpi::reduce_in_place(c, g.data(), root);
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triqs::mpi::reduce_in_place(c, g.singularity(), root);
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}
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//---------
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/*static void allreduce_in_place(communicator c, G &g, int root) {
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triqs::mpi::allreduce_in_place(c, g.data(), root);
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triqs::mpi::allreduce_in_place(c, g.singularity(), root);
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}
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*/
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//---------
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static void broadcast(communicator c, G &g, int root) {
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triqs::mpi::broadcast(c, g.data(), root);
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triqs::mpi::broadcast(c, g.singularity(), root);
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}
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//---------
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template <typename Tag> static mpi_lazy<Tag, G> invoke(Tag, communicator c, G const &g, int root) {
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return {g, root, c};
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}
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//---- reduce ----
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static G &complete_operation(G &target, mpi_lazy<tag::reduce, G> laz) {
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target._data = mpi::reduce(laz.ref.data(), laz.c, laz.root);
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target._singularity = mpi::reduce(laz.ref.singularity(), laz.c, laz.root);
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return target;
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}
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//---- allreduce ----
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static G &complete_operation(G &target, mpi_lazy<tag::allreduce, G> laz) {
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target._data = mpi::allreduce(laz.ref.data(), laz.c, laz.root);
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target._singularity = mpi::allreduce(laz.ref.singularity(), laz.c, laz.root);
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return target;
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}
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//---- scatter ----
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static G &complete_operation(G &target, mpi_lazy<tag::scatter, G> laz) {
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target._mesh = mpi_scatter(laz.ref.mesh(), laz.c, laz.root);
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target._data = mpi::scatter(laz.ref.data(), laz.c, laz.root); // HERE ADD OPTION FOR CHUNCK
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target._singularity = laz.ref.singularity();
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//mpi::broadcast(target._singularity, laz.c, laz.root);
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return target;
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}
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//---- gather ----
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static G &complete_operation(G &target, mpi_lazy<tag::gather, G> laz) {
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target._mesh = mpi_gather(laz.ref.mesh(), laz.c, laz.root);
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target._data = mpi::gather(laz.ref.data(), laz.c, laz.root); // HERE ADD OPTION FOR CHUNCK
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// do nothing for singularity
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return target;
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}
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//---- allgather ----
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static G &complete_operation(G &target, mpi_lazy<tag::allgather, G> laz) {
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target._data = mpi::allgather(laz.ref.data(), laz.c, laz.root); // HERE ADD OPTION FOR CHUNCK
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// do nothing for singularity
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return target;
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}
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};
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} // mpi namespace
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} // namespace triqs
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