PetscSFBackend

Device backend used by a PetscSF to pack, unpack, and exchange data when doing device-aware communication

Synopsis

/* When doing device-aware MPI, a backend refers to the SF/device interface */typedef enum {
  PETSCSF_BACKEND_INVALID = 0,
  PETSCSF_BACKEND_CUDA    = 1,
  PETSCSF_BACKEND_HIP     = 2,
  PETSCSF_BACKEND_KOKKOS  = 3
} PetscSFBackend;

Values

• PETSCSF_BACKEND_INVALID - no backend has been selected (the default for a host-only SF)

• PETSCSF_BACKEND_CUDA - use CUDA-aware pack/unpack and MPI

• PETSCSF_BACKEND_HIP - use HIP-aware pack/unpack and MPI

• PETSCSF_BACKEND_KOKKOS - use the Kokkos backend (which itself may dispatch to CUDA, HIP, or OpenMP)

See Also

PetscSF - an alternative to low-level MPI calls for data communication, PetscSF, PetscSFLink, PetscSFDirection, PetscSFOperation

Level

developer

Location

include/petscsftypes.h

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Index of all PetscSF routines
Table of Contents for all manual pages
Index of all manual pages