[Getdp] getDP has 2 totally different convergence behaviors for the same input

Cris cristina.sorina at yahoo.com
Wed Mar 23 12:11:45 CET 2011


Dear GetDP users & developers, 
 
Please, please, please help me get in touch with somebody  who knows how the GetDP Linux binaries were compiled!
My problem is: with the same GetDP input files I have 2 different behaviors for the GetDP tool:
-          the GetDP versions compiled by me don’t converge (getdp-2.1.0-source.gz with: petsc-lite-3.1-p7.tar.gz, gsl-1.14, umfpack-5.4 on RedHat)
-          the GetDP Linux binaries converge (getdp-2.1.0-source.gz)
I’ve compiled GetDP with different petsc/gcc/compilation flags but the issue is always there – the iterations stop only when NL_NbrMaxIter is reached.
 Possible causes: (could anyone confirm any of them?)
- maybe some uninitialized flags in the getDP code are to be blamed, or the getDP different svn revision number for the getDP binnaries and the getDP compiled by me;
- the strongest hunch: the compilation - I think that petsc/umfpack/gsl code versions might differ and that’s why the convergence is not achieved;
- the gcc newer version compiler might optimize & behave differently.
 
Please let me know if you could guide me towards someone who knows how the getDP Linux binaries were compiled?
Did anyone have similar troubles?
 
Many, many thanks,
Cris
 


      
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.geuz.org/pipermail/getdp/attachments/20110323/4c84951b/attachment.html>