PetscOffloadMask#

Synopsis#

#include <petscdevicetypes.h> 
typedef enum {
  PETSC_OFFLOAD_UNALLOCATED          = 0,   /* 0x0 */
  PETSC_OFFLOAD_CPU                  = 1,   /* 0x1 */
  PETSC_OFFLOAD_GPU                  = 2,   /* 0x2 */
  PETSC_OFFLOAD_BOTH                 = 3,   /* 0x3 */
  PETSC_OFFLOAD_VECKOKKOS_DEPRECATED = 256, /* 0x100 */
  PETSC_OFFLOAD_KOKKOS               = 256  /* 0x100 */
} PetscOffloadMask;

Values#

• 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.

Developer Note#

This enum uses a function (PetscOffloadMaskToString()) to convert to string representation so cannot be used in PetscOptionsEnum().

See Also#

PetscOffloadMaskToString(), PetscOffloadMaskToMemType(), PetscOffloadMaskToDeviceCopyMode()

Level#

developer

Location#

include/petscdevicetypes.h

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