mppnccombine needs to be compiled for Gadi

[penguian]

The executable mppnccombine needs to be compiled for Gadi.

Running the 1deg_jar55_ryf experiment on Gadi results in error messages in postprocessing such as:

payu: error: Thread 0 crashed with error code 127.
 Error message:
/g/data/fp0/pcl900/bin/mppnccombine: error while loading shared libraries: libnetcdf.so.7: cannot open shared object file: No such file or directory

The executable mppnccombine here

[pcl900@gadi-login-04 pcl900]$ file /g/data/fp0/pcl900/bin/mppnccombine
/g/data/fp0/pcl900/bin/mppnccombine: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 2.6.18, BuildID[sha1]=0a1336e90ca8fd54c9ed820ce85cd35be740dad4, stripped

is a copy of raijin:/short/public/access-om2/bin/mppnccombine.

I haven't been able to find a build script or installation instructions for mppnccombine specific to Raijin, although I have found source code at https://github.com/mom-ocean/MOM5/tree/master/src/postprocessing/mppnccombine

[aekiss]

Thanks for catching this Paul. install.sh builds mppnccombine.

Looks like we need to update the netcdf library version in MOM5 bin/environs.nci

We want to make this uniform across model components, and it looks like 4.7.1 would be a good choice - see #166

[russfiedler]

mppnccombine.nci won't get built if there is already a copy of it existing in the directory access-om2/src/mom/bin/. It gets copied by hashexe.sh to access-om2/bin/mppnccombine. You need to remove the existing mppnccombine.nci to update the executable.

Note that if you've created a new bin/environs.gadi say (setting --platform gadi in the MOM compilation) for the new machine mppnccombine.nci is hardwired as a name rather than using the $platform variable and won't get updated.

[aekiss]

Thanks for pointing that out @russfiedler - I've just amended install.sh to force recompilation of mppnccompile.nci: ee555d3