[petsc-users] AOCreateMapping

[Mohammad Mirzadeh]

Hi,

When using AOCreateMapping, it is not possible to ask for mapping of
indecies that do not exist in the AO -- You get "[0]PETSC ERROR: Argument
out of range!" :

[0]PETSC ERROR: --------------------- Error Message
------------------------------------
[0]PETSC ERROR: Argument out of range!
[0]PETSC ERROR: Invalid input index 21!
[0]PETSC ERROR:
------------------------------------------------------------------------
[0]PETSC ERROR: Petsc Release Version 3.2.0, Patch 6, Wed Jan 11 09:28:45
CST 2012
[0]PETSC ERROR: See docs/changes/index.html for recent updates.
[0]PETSC ERROR: See docs/faq.html for hints about trouble shooting.
[0]PETSC ERROR: See docs/index.html for manual pages.
[0]PETSC ERROR:
------------------------------------------------------------------------
[0]PETSC ERROR: ./petsc on a arch-linu named mohammad-laptop by mohammad
Mon Mar 19 17:16:13 2012
[0]PETSC ERROR: Libraries linked from
/home/mohammad/soft/petsc-3.2-p6/arch-linux2-cxx-debug/lib
[0]PETSC ERROR: Configure run at Thu Feb 16 02:16:40 2012
[0]PETSC ERROR: Configure options --with-cc=gcc --with-cxx=g++
--with-fc=gfortran --with-clanguage=cxx --download-f-blas-lapack=1
--download-mpich=1 --download-hypre=1 --download-ml=1
--with-parmetis-include=/home/mohammad/soft/parmetis/include
--with-parmetis-lib="-L/home/mohammad/soft/parmetis/lib -lparmetis -lmetis"
--download-superlu_dist=1
[0]PETSC ERROR:
------------------------------------------------------------------------
[0]PETSC ERROR: AOApplicationToPetsc_Mapping() line 136 in
/home/mohammad/soft/petsc-3.2-p6/src/dm/ao/impls/mapping/aomapping.c
[0]PETSC ERROR: AOApplicationToPetsc() line 250 in
/home/mohammad/soft/petsc-3.2-p6/src/dm/ao/interface/ao.c


Is there an easy way to have the AO return a flag integer (like -1) for
nodes that do not exist in the AO?

Mohammad
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