petsc-3.13.5 2020-09-01
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AOPetscToApplicationPermuteInt

Permutes an array of blocks of integers in the PETSc ordering to the Section 1.5 Writing Application Codes with PETSc-defined ordering.

Synopsis

#include "petscao.h" 
PetscErrorCode  AOPetscToApplicationPermuteInt(AO ao, PetscInt block, PetscInt array[])
Collective on AO

Input Parameters

ao - The Section 1.5 Writing Application Codes with PETSc ordering context
block - The block size
array - The integer array

Output Parameter

array -The permuted array

Note: The length of the array should be block*N, where N is length provided to the AOCreate*() method that created the AO.

The permutation takes array[i_pet] --> array[i_app], where i_app is the index of 'i' in the Section 1.5 Writing Application Codes with PETSc ordering and i_pet is the index of 'i' in the petsc ordering.

See Also

AOCreateBasic(), AOView(), AOApplicationToPetsc(), AOPetscToApplicationIS()

Level

beginner

Location

src/vec/is/ao/interface/ao.c

Implementations

AOPetscToApplicationPermuteInt_Basic in src/vec/is/ao/impls/basic/aobasic.c

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Index of all manual pages