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Merge branch 'develop' into feature/gpu-port
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@ -141,8 +141,22 @@ int Log2Size(int TwoToPower,int MAXLOG2)
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}
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void GlobalSharedMemory::OptimalCommunicator(const Coordinate &processors,Grid_MPI_Comm & optimal_comm)
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{
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#ifdef HYPERCUBE
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#warning "HPE 8600 Hypercube optimisations enabled"
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//////////////////////////////////////////////////////////////////////////////
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// Look and see if it looks like an HPE 8600 based on hostname conventions
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//////////////////////////////////////////////////////////////////////////////
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const int namelen = _POSIX_HOST_NAME_MAX;
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char name[namelen];
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int R;
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int I;
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int N;
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gethostname(name,namelen);
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int nscan = sscanf(name,"r%di%dn%d",&R,&I,&N) ;
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if(nscan==3) OptimalCommunicatorHypercube(processors,optimal_comm);
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else OptimalCommunicatorSharedMemory(processors,optimal_comm);
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}
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void GlobalSharedMemory::OptimalCommunicatorHypercube(const Coordinate &processors,Grid_MPI_Comm & optimal_comm)
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{
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////////////////////////////////////////////////////////////////
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// Assert power of two shm_size.
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////////////////////////////////////////////////////////////////
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@ -208,7 +222,8 @@ void GlobalSharedMemory::OptimalCommunicator(const Coordinate &processors,Grid_M
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////////////////////////////////////////////////////////////////
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int ndimension = processors.size();
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std::vector<int> processor_coor(ndimension);
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std::vector<int> WorldDims = processors; std::vector<int> ShmDims (ndimension,1); std::vector<int> NodeDims (ndimension);
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std::vector<int> WorldDims = processors.toVector();
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std::vector<int> ShmDims (ndimension,1); std::vector<int> NodeDims (ndimension);
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std::vector<int> ShmCoor (ndimension); std::vector<int> NodeCoor (ndimension); std::vector<int> WorldCoor(ndimension);
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std::vector<int> HyperCoor(ndimension);
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int dim = 0;
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@ -263,7 +278,9 @@ void GlobalSharedMemory::OptimalCommunicator(const Coordinate &processors,Grid_M
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/////////////////////////////////////////////////////////////////
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int ierr= MPI_Comm_split(WorldComm,0,rank,&optimal_comm);
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assert(ierr==0);
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#else
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}
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void GlobalSharedMemory::OptimalCommunicatorSharedMemory(const Coordinate &processors,Grid_MPI_Comm & optimal_comm)
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{
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////////////////////////////////////////////////////////////////
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// Assert power of two shm_size.
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////////////////////////////////////////////////////////////////
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@ -316,7 +333,6 @@ void GlobalSharedMemory::OptimalCommunicator(const Coordinate &processors,Grid_M
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/////////////////////////////////////////////////////////////////
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int ierr= MPI_Comm_split(WorldComm,0,rank,&optimal_comm);
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assert(ierr==0);
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#endif
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}
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////////////////////////////////////////////////////////////////////////////////////////////
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// SHMGET
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@ -347,7 +363,7 @@ void GlobalSharedMemory::SharedMemoryAllocate(uint64_t bytes, int flags)
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int errsv = errno;
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printf("Errno %d\n",errsv);
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printf("key %d\n",key);
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printf("size %lld\n",size);
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printf("size %ld\n",size);
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printf("flags %d\n",flags);
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perror("shmget");
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exit(1);
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