ISCreateStride

Creates a data structure for an index set containing a list of evenly spaced integers.

Synopsis

#include "petscis.h"   
int ISCreateStride(MPI_Comm comm,int n,int first,int step,IS *is)
Collective on MPI_Comm

Input Parameters

comm - the MPI communicator
n - the length of the index set
first - the first element of the index set
step - the change to the next index

Output Parameter

is -the new index set

Notes

When the communicator is not MPI_COMM_SELF, the operations on IS are NOT conceptually the same as MPI_Group operations. The IS are the distributed sets of indices and thus certain operations on them are collective.

See Also

ISCreateGeneral(), ISCreateBlock(), ISAllGather()

Level:beginner
Location:
src/vec/is/impls/stride/stride.c
Index of all IS routines
Table of Contents for all manual pages
Index of all manual pages

Examples

src/vec/is/examples/tutorials/ex2.c.html
src/vec/is/examples/tutorials/ex2f.F.html