[Wrf-users] Question about using PNetcdf with WRF

Andrew Porter andrew.porter at stfc.ac.uk
Thu Aug 26 09:17:55 MDT 2010

Hi Craig,

> I am trying to use Pnetcdf with WRF
> for benchmarking purposes.  I just wanted to
> ask a quick question.   Are there any tricks
> to get WRF working with Pnetcdf?  The code links
> correctly, but when I set the file type to 11
> WRF will segfault when writing the restart file, and
> will segfault when writing the output files for
> large core counts (>  2000 cores).
> OS: Centos 5.5 running over IB
> FS: Lustre 1.8.3
> MPI: Mvapich2 1.4.1, compiled with Lustre support
> PNetcdf: 1.1.1 and 1.2
> Compiler: Intel 11.1
I have used the pnetcdf layer with WRF but didn't have any 
problems.  The machines I used were a Cray XT4 and XT5, both with Lustre 
FS. I used the PGI compiler.

Have you tried the pnetcdf test cases (I can't remember how extensive 
they are though)?

Bit of a NULL result really but just wanted to reassure you that I've 
had it working.



Dr. Andrew Porter
Computational Scientist
Advanced Research Computing Group
Computational Science and Engineering Dept.
STFC Daresbury Laboratory
Keckwick Lane
Tel. : +44 (0)1925 603607
email: andrew.porter at stfc.ac.uk

More information about the Wrf-users mailing list