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40 lines
1.0 KiB
C++
40 lines
1.0 KiB
C++
#ifndef GRID_COMMUNICATOR_H
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#define GRID_COMMUNICATOR_H
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///////////////////////////////////
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// Processor layout information
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///////////////////////////////////
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namespace dpo {
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class CartesianCommunicator {
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public:
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// Communicator should know nothing of the physics grid, only processor grid.
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std::vector<int> _processors; // Which dimensions get relayed out over processors lanes.
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int _processor; // linear processor rank
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std::vector<int> _processor_coor; // linear processor coordinate
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unsigned long _ndimension;
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#ifdef GRID_COMMS_MPI
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MPI_Comm communicator;
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#endif
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CartesianCommunicator(std::vector<int> &pdimensions_in);
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int Rank(std::vector<int> coor);
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void GlobalSumF(float &);
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void GlobalSumFVector(float *,int N);
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void GlobalSumF(double &);
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void GlobalSumFVector(double *,int N);
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void SendToRecvFrom(void *xmit,
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std::vector<int> to_coordinate,
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void *recv,
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std::vector<int> from_coordinate,
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int bytes);
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};
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}
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#endif
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