mirror of
https://github.com/paboyle/Grid.git
synced 2024-11-14 17:55:38 +00:00
132 lines
4.8 KiB
C++
132 lines
4.8 KiB
C++
/*************************************************************************************
|
|
|
|
Grid physics library, www.github.com/paboyle/Grid
|
|
|
|
Source file: ./lib/communicator/Communicator_none.cc
|
|
|
|
Copyright (C) 2015
|
|
|
|
Author: Peter Boyle <paboyle@ph.ed.ac.uk>
|
|
|
|
This program 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 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program 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 this program; if not, write to the Free Software Foundation, Inc.,
|
|
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
|
|
See the full license in the file "LICENSE" in the top level distribution directory
|
|
*************************************************************************************/
|
|
/* END LEGAL */
|
|
#include "Grid.h"
|
|
namespace Grid {
|
|
|
|
///////////////////////////////////////////////////////////////
|
|
// Info that is setup once and indept of cartesian layout
|
|
///////////////////////////////////////////////////////////////
|
|
int CartesianCommunicator::ShmRank;
|
|
int CartesianCommunicator::ShmSize;
|
|
int CartesianCommunicator::GroupRank;
|
|
int CartesianCommunicator::GroupSize;
|
|
int CartesianCommunicator::WorldRank;
|
|
int CartesianCommunicator::WorldSize;
|
|
int CartesianCommunicator::Slave;
|
|
void * CartesianCommunicator::ShmCommBuf;
|
|
|
|
/////////////////////////////////
|
|
// Alloc, free shmem region
|
|
/////////////////////////////////
|
|
void *CartesianCommunicator::ShmBufferMalloc(size_t bytes){
|
|
// bytes = (bytes+sizeof(vRealD))&(~(sizeof(vRealD)-1));// align up bytes
|
|
void *ptr = (void *)heap_top;
|
|
heap_top += bytes;
|
|
heap_bytes+= bytes;
|
|
assert(heap_bytes < MAX_MPI_SHM_BYTES);
|
|
return ptr;
|
|
}
|
|
void CartesianCommunicator::ShmBufferFreeAll(void) {
|
|
heap_top =(size_t)ShmBufferSelf();
|
|
heap_bytes=0;
|
|
}
|
|
|
|
/////////////////////////////////
|
|
// Grid information queries
|
|
/////////////////////////////////
|
|
int CartesianCommunicator::IsBoss(void) { return _processor==0; };
|
|
int CartesianCommunicator::BossRank(void) { return 0; };
|
|
int CartesianCommunicator::ThisRank(void) { return _processor; };
|
|
const std::vector<int> & CartesianCommunicator::ThisProcessorCoor(void) { return _processor_coor; };
|
|
const std::vector<int> & CartesianCommunicator::ProcessorGrid(void) { return _processors; };
|
|
int CartesianCommunicator::ProcessorCount(void) { return _Nprocessors; };
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// very VERY rarely (Log, serial RNG) we need world without a grid
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
int CartesianCommunicator::RankWorld(void){ return WorldRank; };
|
|
int CartesianCommunicator::Ranks (void) { return WorldSize; };
|
|
int CartesianCommunicator::Nodes (void) { return GroupSize; };
|
|
int CartesianCommunicator::Cores (void) { return ShmSize; };
|
|
int CartesianCommunicator::NodeRank (void) { return GroupRank; };
|
|
int CartesianCommunicator::CoreRank (void) { return ShmRank; };
|
|
|
|
void CartesianCommunicator::GlobalSum(ComplexF &c)
|
|
{
|
|
GlobalSumVector((float *)&c,2);
|
|
}
|
|
void CartesianCommunicator::GlobalSumVector(ComplexF *c,int N)
|
|
{
|
|
GlobalSumVector((float *)c,2*N);
|
|
}
|
|
void CartesianCommunicator::GlobalSum(ComplexD &c)
|
|
{
|
|
GlobalSumVector((double *)&c,2);
|
|
}
|
|
void CartesianCommunicator::GlobalSumVector(ComplexD *c,int N)
|
|
{
|
|
GlobalSumVector((double *)c,2*N);
|
|
}
|
|
|
|
#ifndef GRID_COMMS_MPI3
|
|
|
|
void CartesianCommunicator::StencilSendToRecvFromBegin(std::vector<CommsRequest_t> &list,
|
|
void *xmit,
|
|
int xmit_to_rank,
|
|
void *recv,
|
|
int recv_from_rank,
|
|
int bytes)
|
|
{
|
|
SendToRecvFromBegin(list,xmit,xmit_to_rank,recv,recv_from_rank,bytes);
|
|
}
|
|
void CartesianCommunicator::StencilSendToRecvFromComplete(std::vector<CommsRequest_t> &waitall)
|
|
{
|
|
SendToRecvFromComplete(waitall);
|
|
}
|
|
void CartesianCommunicator::StencilBarrier(void){};
|
|
|
|
commVector<uint8_t> CartesianCommunicator::ShmBufStorageVector;
|
|
|
|
void *CartesianCommunicator::ShmBufferSelf(void) { return ShmCommBuf; }
|
|
|
|
void *CartesianCommunicator::ShmBuffer(int rank) {
|
|
return NULL;
|
|
}
|
|
void *CartesianCommunicator::ShmBufferTranslate(int rank,void * local_p) {
|
|
return NULL;
|
|
}
|
|
void CartesianCommunicator::ShmInitGeneric(void){
|
|
ShmBufStorageVector.resize(MAX_MPI_SHM_BYTES);
|
|
ShmCommBuf=(void *)&ShmBufStorageVector[0];
|
|
}
|
|
|
|
#endif
|
|
|
|
}
|
|
|