vchoi_fork

[svn-r10641] Purpose:
Bug fix.

Description:
When there were errors in the test, program still just call MPI_FINALIZE
and failed to attempt to exit with some error code so that calling
programs like make be informed of the exceptions.

Solution:
Call MPI_ABORT if error is detected. Though MPI_ABORT does not
guarantee 100% failure report, it has the best chance.
Also made dimension incompatible as a real error.

Platforms tested:
Did not h5committest but tested in heping PP only since this
is a simple fix.