PETSc version 3.17.4
PetscOffloadMask
indicates which memory (CPU, GPU, or none) contains valid data
Synopsis
#include <petscdevicetypes.h>
typedef enum {
PETSC_OFFLOAD_UNALLOCATED = 0x0,
PETSC_OFFLOAD_CPU = 0x1,
PETSC_OFFLOAD_GPU = 0x2,
PETSC_OFFLOAD_BOTH = 0x3,
PETSC_OFFLOAD_VECKOKKOS_DEPRECATED = 0x100,
PETSC_OFFLOAD_KOKKOS = 0x100
} PetscOffloadMask;
PETSC_OFFLOAD_UNALLOCATED - no memory contains valid matrix entries; NEVER used for vectors
PETSC_OFFLOAD_GPU - GPU has valid vector/matrix entries
PETSC_OFFLOAD_CPU - CPU has valid vector/matrix entries
PETSC_OFFLOAD_BOTH - Both GPU and CPU have valid vector/matrix entries and they match
PETSC_OFFLOAD_KOKKOS - Reserved for Kokkos matrix and vector. It means the offload is managed by Kokkos, thus this flag itself cannot tell you where the valid data is.
Level
developer
Location
include/petscdevicetypes.h
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