1. petsc
  2. PETSc
  3. petsc
Issue #61 new

Remove MPI_Allreduce in create/setting values in ISXXX

BarryFSmith
created an issue

The various IS implementations have a global reduce to determine the total size of the IS across processes. Since the total size is usually not needed it should be determined on demand as a collective and not always set at creation time.

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