mirror of
https://github.com/OPM/opm-simulators.git
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213 lines
9.1 KiB
C++
213 lines
9.1 KiB
C++
/*
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Copyright 2018 SINTEF Digital, Mathematics and Cybernetics.
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Copyright 2018 Equinor.
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This file is part of the Open Porous Media project (OPM).
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OPM is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OPM is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OPM. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <opm/simulators/timestepping/gatherConvergenceReport.hpp>
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#if HAVE_MPI
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#include <mpi.h>
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namespace
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{
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using Opm::ConvergenceReport;
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void packReservoirFailure(const ConvergenceReport::ReservoirFailure& f,
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std::vector<char>& buf,
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int& offset, MPI_Comm mpi_communicator)
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{
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int type = static_cast<int>(f.type());
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int severity = static_cast<int>(f.severity());
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int phase = f.phase();
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MPI_Pack(&type, 1, MPI_INT, buf.data(), buf.size(), &offset, mpi_communicator);
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MPI_Pack(&severity, 1, MPI_INT, buf.data(), buf.size(), &offset, mpi_communicator);
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MPI_Pack(&phase, 1, MPI_INT, buf.data(), buf.size(), &offset, mpi_communicator);
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}
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void packWellFailure(const ConvergenceReport::WellFailure& f,
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std::vector<char>& buf,
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int& offset, MPI_Comm mpi_communicator)
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{
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int type = static_cast<int>(f.type());
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int severity = static_cast<int>(f.severity());
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int phase = f.phase();
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MPI_Pack(&type, 1, MPI_INT, buf.data(), buf.size(), &offset, mpi_communicator);
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MPI_Pack(&severity, 1, MPI_INT, buf.data(), buf.size(), &offset, mpi_communicator);
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MPI_Pack(&phase, 1, MPI_INT, buf.data(), buf.size(), &offset, mpi_communicator);
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int name_length = f.wellName().size() + 1; // Adding 1 for the null terminator.
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MPI_Pack(&name_length, 1, MPI_INT, buf.data(), buf.size(), &offset, mpi_communicator);
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MPI_Pack(const_cast<char*>(f.wellName().c_str()), name_length, MPI_CHAR, buf.data(), buf.size(), &offset, mpi_communicator);
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}
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void packConvergenceReport(const ConvergenceReport& local_report,
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std::vector<char>& buf,
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int& offset, MPI_Comm mpi_communicator)
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{
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// Pack the data.
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// Status will not be packed, it is possible to deduce from the other data.
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// Reservoir failures.
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const auto rf = local_report.reservoirFailures();
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int num_rf = rf.size();
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MPI_Pack(&num_rf, 1, MPI_INT, buf.data(), buf.size(), &offset, mpi_communicator);
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for (const auto& f : rf) {
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packReservoirFailure(f, buf, offset, mpi_communicator);
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}
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// Well failures.
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const auto wf = local_report.wellFailures();
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int num_wf = wf.size();
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MPI_Pack(&num_wf, 1, MPI_INT, buf.data(), buf.size(), &offset, mpi_communicator);
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for (const auto& f : wf) {
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packWellFailure(f, buf, offset, mpi_communicator);
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}
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}
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int messageSize(const ConvergenceReport& local_report, MPI_Comm mpi_communicator)
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{
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int int_pack_size = 0;
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MPI_Pack_size(1, MPI_INT, mpi_communicator, &int_pack_size);
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const int num_rf = local_report.reservoirFailures().size();
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const int num_wf = local_report.wellFailures().size();
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int wellnames_length = 0;
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for (const auto& f : local_report.wellFailures()) {
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wellnames_length += (f.wellName().size() + 1);
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}
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return (2 + 3*num_rf + 4*num_wf) * int_pack_size + wellnames_length;
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}
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ConvergenceReport::ReservoirFailure unpackReservoirFailure(const std::vector<char>& recv_buffer, int& offset, MPI_Comm mpi_communicator)
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{
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int type = -1;
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int severity = -1;
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int phase = -1;
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auto* data = const_cast<char*>(recv_buffer.data());
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MPI_Unpack(data, recv_buffer.size(), &offset, &type, 1, MPI_INT, mpi_communicator);
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MPI_Unpack(data, recv_buffer.size(), &offset, &severity, 1, MPI_INT, mpi_communicator);
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MPI_Unpack(data, recv_buffer.size(), &offset, &phase, 1, MPI_INT, mpi_communicator);
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return ConvergenceReport::ReservoirFailure(static_cast<ConvergenceReport::ReservoirFailure::Type>(type),
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static_cast<ConvergenceReport::Severity>(severity),
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phase);
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}
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ConvergenceReport::WellFailure unpackWellFailure(const std::vector<char>& recv_buffer, int& offset, MPI_Comm mpi_communicator)
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{
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int type = -1;
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int severity = -1;
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int phase = -1;
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auto* data = const_cast<char*>(recv_buffer.data());
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MPI_Unpack(data, recv_buffer.size(), &offset, &type, 1, MPI_INT, mpi_communicator);
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MPI_Unpack(data, recv_buffer.size(), &offset, &severity, 1, MPI_INT, mpi_communicator);
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MPI_Unpack(data, recv_buffer.size(), &offset, &phase, 1, MPI_INT, mpi_communicator);
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int name_length = -1;
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MPI_Unpack(data, recv_buffer.size(), &offset, &name_length, 1, MPI_INT, mpi_communicator);
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std::vector<char> namechars(name_length);
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MPI_Unpack(data, recv_buffer.size(), &offset, namechars.data(), name_length, MPI_CHAR, mpi_communicator);
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std::string name(namechars.data());
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return ConvergenceReport::WellFailure(static_cast<ConvergenceReport::WellFailure::Type>(type),
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static_cast<ConvergenceReport::Severity>(severity),
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phase,
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name);
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}
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ConvergenceReport unpackSingleConvergenceReport(const std::vector<char>& recv_buffer, int& offset, MPI_Comm mpi_communicator)
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{
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ConvergenceReport cr;
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int num_rf = -1;
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auto* data = const_cast<char*>(recv_buffer.data());
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MPI_Unpack(data, recv_buffer.size(), &offset, &num_rf, 1, MPI_INT, mpi_communicator);
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for (int rf = 0; rf < num_rf; ++rf) {
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ConvergenceReport::ReservoirFailure f = unpackReservoirFailure(recv_buffer, offset, mpi_communicator);
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cr.setReservoirFailed(f);
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}
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int num_wf = -1;
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MPI_Unpack(data, recv_buffer.size(), &offset, &num_wf, 1, MPI_INT, mpi_communicator);
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for (int wf = 0; wf < num_wf; ++wf) {
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ConvergenceReport::WellFailure f = unpackWellFailure(recv_buffer, offset, mpi_communicator);
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cr.setWellFailed(f);
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}
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return cr;
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}
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ConvergenceReport unpackConvergenceReports(const std::vector<char>& recv_buffer,
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const std::vector<int>& displ, MPI_Comm mpi_communicator)
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{
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ConvergenceReport cr;
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const int num_processes = displ.size() - 1;
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for (int process = 0; process < num_processes; ++process) {
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int offset = displ[process];
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cr += unpackSingleConvergenceReport(recv_buffer, offset, mpi_communicator);
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assert(offset == displ[process + 1]);
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}
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return cr;
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}
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} // anonymous namespace
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namespace Opm
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{
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/// Create a global convergence report combining local
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/// (per-process) reports.
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ConvergenceReport gatherConvergenceReport(const ConvergenceReport& local_report, Parallel::Communication mpi_communicator)
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{
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// Pack local report.
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int message_size = messageSize(local_report, mpi_communicator);
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std::vector<char> buffer(message_size);
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int offset = 0;
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packConvergenceReport(local_report, buffer, offset,mpi_communicator);
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assert(offset == message_size);
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// Get message sizes and create offset/displacement array for gathering.
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int num_processes = -1;
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MPI_Comm_size(mpi_communicator, &num_processes);
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std::vector<int> message_sizes(num_processes);
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MPI_Allgather(&message_size, 1, MPI_INT, message_sizes.data(), 1, MPI_INT, mpi_communicator);
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std::vector<int> displ(num_processes + 1, 0);
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std::partial_sum(message_sizes.begin(), message_sizes.end(), displ.begin() + 1);
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// Gather.
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std::vector<char> recv_buffer(displ.back());
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MPI_Allgatherv(buffer.data(), buffer.size(), MPI_PACKED,
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const_cast<char*>(recv_buffer.data()), message_sizes.data(),
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displ.data(), MPI_PACKED,
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mpi_communicator);
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// Unpack.
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ConvergenceReport global_report = unpackConvergenceReports(recv_buffer, displ, mpi_communicator);
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return global_report;
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}
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} // namespace Opm
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#else // HAVE_MPI
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namespace Opm
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{
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ConvergenceReport gatherConvergenceReport(const ConvergenceReport& local_report,
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Parallel::Communication mpi_communicator [[maybe_unused]])
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{
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return local_report;
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}
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} // namespace Opm
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#endif // HAVE_MPI
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