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Grid/lib/communicator/Grid_communicator_fake.cc
Peter Boyle fc32450360 Improved the gamma quite a bit.
Serial rng's which are set on node zero and broadcaste
2015-04-24 20:21:40 +01:00

61 lines
1.3 KiB
C++

#include "Grid.h"
namespace Grid {
CartesianCommunicator::CartesianCommunicator(std::vector<int> &processors)
{
_ndimension = _processors.size();
_processor_coor.resize(_ndimension);
_processors = processors;
// Require 1^N processor grid for fake
for(int d=0;d<_ndimension;d++) if(_processors[d]!=1) exit(-1);
_processor = 0;// I am the one. The only one..
for(int d=0;d<_ndimension;d++) _processor_coor[d] = 0;
}
void CartesianCommunicator::GlobalSum(float &){}
void CartesianCommunicator::GlobalSumVector(float *,int N){}
void CartesianCommunicator::GlobalSum(double &){}
void CartesianCommunicator::GlobalSum(uint32_t &){}
void CartesianCommunicator::GlobalSumVector(double *,int N){}
// Basic Halo comms primitive
void CartesianCommunicator::SendToRecvFrom(void *xmit,
int dest,
void *recv,
int from,
int bytes)
{
exit(-1);
}
void CartesianCommunicator::Barrier(void)
{
}
void CartesianCommunicator::Broadcast(int root,void* data, int bytes)
{
}
void CartesianCommunicator::BroadcastWorld(int root,void* data, int bytes)
{
}
void CartesianCommunicator::ShiftedRanks(int dim,int shift,int &source,int &dest)
{
source =1;
dest=1;
}
int CartesianCommunicator::RankFromProcessorCoor(std::vector<int> &coor)
{
return 1;
}
void CartesianCommunicator::ProcessorCoorFromRank(int rank, std::vector<int> &coor)
{
}
}