[petsc-dev] DA refine/coarsen with stencil_width=0 for nproc>1

[Lisandro Dalcin]

Perhaps I'm missing something obvious, but DA refine/coarsen with
stencil_width=0 for nproc>1 is failing, see the example below

[dalcinl at nikola petsc4py-dev]$ cat test-da-rc.py
import sys, petsc4py
petsc4py.init(sys.argv)

from petsc4py import PETSc

OptDB = PETSc.Options()
n  = OptDB.getInt('n',  100)
da = PETSc.DA().create([n], dof=1, stencil_width=0)

rda = da.refine()
cda = da.coarsen()


[dalcinl at nikola petsc4py-dev]$ mpiexec -n 1 python test-da-rc.py


[dalcinl at nikola petsc4py-dev]$ mpiexec -n 2 python test-da-rc.py
Traceback (most recent call last):
  File "test-da-rc.py", line 10, in <module>
    rda = da.refine()
Traceback (most recent call last):
  File "test-da-rc.py", line 10, in <module>
    rda = da.refine()
  File "DA.pyx", line 408, in petsc4py.PETSc.DA.refine
(src/petsc4py.PETSc.c:115026)
  File "DA.pyx", line 408, in petsc4py.PETSc.DA.refine
(src/petsc4py.PETSc.c:115026)
petsc4py.PETSc.Errorpetsc4py.PETSc.Error: error code 60
[0] DMRefine() line 541 in /usr/local/petsc/dev/src/dm/interface/dm.c
[0] DMRefine_DA() line 770 in /usr/local/petsc/dev/src/dm/impls/da/da.c
[0] DMDARefineOwnershipRanges() line 668 in
/usr/local/petsc/dev/src/dm/impls/da/da.c
[0] Nonconforming object sizes
[0] Could not find a compatible refined ownership range
: error code 60
[1] DMRefine() line 541 in /usr/local/petsc/dev/src/dm/interface/dm.c
[1] DMRefine_DA() line 770 in /usr/local/petsc/dev/src/dm/impls/da/da.c
[1] DMDARefineOwnershipRanges() line 668 in
/usr/local/petsc/dev/src/dm/impls/da/da.c
[1] Nonconforming object sizes
[1] Could not find a compatible refined ownership range


-- 
Lisandro Dalcin
---------------
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