PetscInt

PETSc type that represents an integer, used primarily to represent size of arrays and indexing into arrays. Its size can be configured with the option --with-64-bit-indices to be either 32-bit (default) or 64-bit.

Notes

For MPI calls that require datatypes, use MPIU_INT as the datatype for PetscInt. It will automatically work correctly regardless of the size of PetscInt.

See Also

PetscBLASInt, PetscMPIInt, PetscReal, PetscScalar, PetscComplex, PetscInt, MPIU_REAL, MPIU_SCALAR, MPIU_COMPLEX, MPIU_INT, PetscIntCast()

Level

beginner

Location

include/petscsystypes.h

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