Search found 5 matches

by akash96
Tue May 13, 2025 10:29 am
Forum: ROMS Problems
Topic: Regarding Parallel IO with Open MPI
Replies: 9
Views: 8979

Re: Regarding Parallel IO with Open MPI

Which PIO version should I be using with the ROMS setup?

On wikiroms at https://www.myroms.org/wiki/External_Libraries , PIO Version 2.5.4 is mentioned.
But since, there has been a new Pull request successfully merged and closed by Arango called Parallel I/O (PIO) Revisited #53 , should I stick to ...
by akash96
Mon May 05, 2025 12:49 pm
Forum: ROMS Problems
Topic: Regarding Parallel IO with Open MPI
Replies: 9
Views: 8979

Re: Regarding Parallel IO with Open MPI

I tried using the latest ROMS version with the Bay of Bengal Model for a 2.3 km resolution, but the code exploded in the first timestep itself.
What could be the possible wrong things I might be doing?
Please suggest any changes that might help make the Parallel I/O Option work. Thanks.

Also, I ...
by akash96
Sat May 03, 2025 6:21 am
Forum: ROMS Problems
Topic: Regarding Parallel IO with Open MPI
Replies: 9
Views: 8979

Re: Regarding Parallel IO with Open MPI

Okay, Thanks a lot @robertson @wilkin.

I will use the latest ROMS version with the Bay of Bengal Model and get back to you for the Parallel I/O Option.

One of my Research goals is to investigate I/O Bottlenecks, for which I am using DARSHAN (developed by Argonne National Lab) and TAU (developed ...
by akash96
Fri May 02, 2025 7:22 am
Forum: ROMS Problems
Topic: Regarding Parallel IO with Open MPI
Replies: 9
Views: 8979

Re: Regarding Parallel IO with Open MPI

Hi,

I am sharing the Log file and the build script for two cases. Serial I/O is working perfectly fine in both cases. But, when I am using the Parallel I/O after converting the *.nc classic to Netcdf-4 Format, using
nccopy, then the code is blowing up in the 1st Timestep itself. Please see to the ...
by akash96
Thu May 01, 2025 10:03 am
Forum: ROMS Problems
Topic: Regarding Parallel IO with Open MPI
Replies: 9
Views: 8979

Regarding Parallel IO with Open MPI

Hi,

I have been working on Bay of Bengal Region for a resolution of 2.3 km. I was trying to run the model for the Parallel I/O support using OpenMPI, But I was facing an issue of Blowup in the code.

Just to see whether there is something wrong with the Netcdf files that I have converted from ...