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

Level#

beginner

Location#

include/petscsystypes.h

Examples#

src/sys/classes/random/tutorials/ex1.c.html
src/sys/classes/random/tutorials/ex2.c.html
src/sys/tutorials/ex5f90.F90.html
src/vec/vec/tutorials/ex11f90.F90.html
src/vec/vec/tutorials/ex12f.F90.html
src/vec/vec/tutorials/ex16f.F90.html
src/vec/vec/tutorials/ex18f.F90.html
src/vec/vec/tutorials/ex1f.F90.html
src/vec/vec/tutorials/ex3f.F90.html
src/vec/vec/tutorials/ex4f90.F90.html
src/vec/vec/tutorials/ex5f.F90.html

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Index of all manual pages