On Sat, Mar 23, 2013 at 1:40 PM, Mehrdad H Farahani <mh.farahani at gmail.com>wrote:
> Excuse me for the delay. We had a system maintenance and I was not able > to submit any jobs. I made the Petsc build with COPTFLAGS="-O0 -g" and > FOPTFLAGS="-O0 -g" and the simulation did not diverge. However, it diverges > with a Petsc build with COPTFLAGS="-O2" and FOPTFLAGS="-O2". > 1. Write the system out using -ksp_view_binary and compare the resulting file 'binaryoutput' as produced from the debug and optimized code. 2. If the systems above are identical up to rounding error, try to use src/ksp/ksp/examples/tutorials/ex10.c to load the system and see if you can reproduce the different behavior. If so, give us directions to reproduce using ex10 and your binary file. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20130323/e7e0cf64/attachment.html>
