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78 lines
3.0 KiB
C++
78 lines
3.0 KiB
C++
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./lib/communicator/Communicator_none.cc
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Copyright (C) 2015
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Author: Peter Boyle <paboyle@ph.ed.ac.uk>
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This program 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 2 of the License, or
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(at your option) any later version.
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This program 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 along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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See the full license in the file "LICENSE" in the top level distribution directory
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*************************************************************************************/
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/* END LEGAL */
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#include <Grid/GridCore.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <limits.h>
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#include <sys/mman.h>
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NAMESPACE_BEGIN(Grid);
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///////////////////////////////////////////////////////////////
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// Info that is setup once and indept of cartesian layout
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///////////////////////////////////////////////////////////////
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CartesianCommunicator::CommunicatorPolicy_t
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CartesianCommunicator::CommunicatorPolicy= CartesianCommunicator::CommunicatorPolicyConcurrent;
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int CartesianCommunicator::nCommThreads = -1;
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/////////////////////////////////
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// Grid information queries
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/////////////////////////////////
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int CartesianCommunicator::Dimensions(void) { return _ndimension; };
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int CartesianCommunicator::IsBoss(void) { return _processor==0; };
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int CartesianCommunicator::BossRank(void) { return 0; };
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int CartesianCommunicator::ThisRank(void) { return _processor; };
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const std::vector<int> & CartesianCommunicator::ThisProcessorCoor(void) { return _processor_coor; };
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const std::vector<int> & CartesianCommunicator::ProcessorGrid(void) { return _processors; };
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int CartesianCommunicator::ProcessorCount(void) { return _Nprocessors; };
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////////////////////////////////////////////////////////////////////////////////
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// very VERY rarely (Log, serial RNG) we need world without a grid
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////////////////////////////////////////////////////////////////////////////////
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void CartesianCommunicator::GlobalSum(ComplexF &c)
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{
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GlobalSumVector((float *)&c,2);
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}
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void CartesianCommunicator::GlobalSumVector(ComplexF *c,int N)
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{
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GlobalSumVector((float *)c,2*N);
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}
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void CartesianCommunicator::GlobalSum(ComplexD &c)
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{
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GlobalSumVector((double *)&c,2);
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}
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void CartesianCommunicator::GlobalSumVector(ComplexD *c,int N)
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{
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GlobalSumVector((double *)c,2*N);
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}
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NAMESPACE_END(Grid);
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