PetscShmComm

Opaque handle to a partition of an MPI_Comm into shared-memory subcommunicators, used by PETSc to share memory between ranks that live on the same compute node

Synopsis

typedef struct _n_PetscShmComm *PetscShmComm;

See Also

PetscShmCommGet(), PetscShmCommGlobalToLocal(), PetscShmCommLocalToGlobal(), PetscShmCommGetMpiShmComm()

Level

developer

Location

include/petscsystypes.h

Examples

src/sys/tests/ex15.cxx

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Index of all Sys routines
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