[ncl-talk] ESMF_regrid

[Dennis Shea]

forrtl: severe (174): SIGSEGV, , segmentation fault occurred
-------------------
Segmentation faults are difficult to  address because segmentation
violations can come from a variety of reasons.

Perhaps, resetting the stack size?

%> ulimit -s unlimited
....
%> ulimit -s 60000

---------
To my knowledge, there are no restaurants on grid resolution.

The underlying code is from ESMF. Perhaps,  look at their website.

Good Luck

On Mon, Nov 30, 2020 at 5:15 PM Laura Fowler via ncl-talk <
ncl-talk at mailman.ucar.edu> wrote:

> Hello:
>
> I have been using ESMF_regrid to regrid an unstructured MPAS mesh to a
> latitude-longitude grid, including to regrid variable-resolution meshes
> (i.e. the coarse mesh has a resolution of about 30 km and the refined mesh
> has a resolution of about 6 km). Using the same script to regrid a
> variable-resolution mesh which has a resolution varying between 15 and 3
> km, I get the following SIGSEGV error:
>
> (0) ESMF_regrid_gen_weights: number of processors used: 1
>
> (0) --------------------------------------------------
>
> (0) ESMF_regrid_gen_weights: the following command is about to be
> executed on the system:
>
> (0) 'ESMF_RegridWeightGen --ignore_degenerate --src_loc corner  --source
> source.grid_onCells.6488066.CONUS.to_era_interim.nc --destination
> destination.grid_onCells.6488066.CONUS.to_era_interim.nc --weight
> weights.grid_onCells.6488066.CONUS.to_era_interim.nc --src_type ESMF -i'
>
> (0) --------------------------------------------------
>
> forrtl: severe (174): SIGSEGV, segmentation fault occurred
>
> Image              PC                Routine            Line        Source
>
>
> ESMF_RegridWeight  0000000000428A7D  Unknown               Unknown
> Unknown
>
> libpthread.so.0    00007FD44D49FB00  Unknown               Unknown
> Unknown
>
> libesmf.so         00007FD44FEA6900  netcdf_mp_nf90_ge     Unknown
> Unknown
>
>
> Since the same ncl script works for a lower resolution mesh, is it
> possible that ESMF_regrid does not handle a high resolution mesh?
>
> Thanks,
> Laura
>
> --
>
> !-------------------------------------------------------------------------------------------------------------
> Laura D. Fowler
>
> Mesoscale and Microscale Meteorology Division (MMM)
> National Center for Atmospheric Research
> P.O. Box 3000, Boulder CO 80307-3000
>
> e-mail: laura at ucar.edu
> phone: 303-497-1628
>
>
> !-------------------------------------------------------------------------------------------------------------
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