[MITgcm-support] CRAY XD1

[Chris Hill]

Hi Martin,

  Did you get anywhere on this (I can't see a reply but I have been away).
  On thing that can make this symptom happen is stacksize problems in a 
shell. Can you set the shell stacksize to "unlimited" for your shell and 
see what happens. I can't remember the command for this and I'm not 
properly on line - its something like "ulimit" I think.

Chris
Martin Losch wrote:
> Hi,
> 
> we have a new platform, a CRAY XD1, (basically opteron CPUs with a very 
> fast network). I have a hard time on this machine:
> I was able to run a global_ocean experiment (180x80x23, the ecco 2deg 
> configuration, with KPP, GMRedi, etc.) with up to 12CPUs, scales and 
> everything, but I have a different configuration (1500x1x100, or 
> 256x256x100,  cartesian coordinates, non-hydrostatic, but no other extra 
> packages, no netcdf, runs fine on many platforms with up to 20CPUs so 
> far), which ends with a segmentation fault in the routine 
> packages_boot.F (actually, while printing a message with print_message). 
> Works only with MPI turned off.
> For these two cases I use the same build_options file 
> (linux_amd64_pgf77+mpi_xd1).
> 
> Any idea what might be going on?
> 
> Martin
> 
> _______________________________________________
> MITgcm-support mailing list
> MITgcm-support at mitgcm.org
> http://dev.mitgcm.org/mailman/listinfo/mitgcm-support
>