geocachem ==> achem name changed

[weiyuan-jiang]

Address #263

[weiyuan-jiang]

I have a concern. After this merge, the regrid.pl is not going to support the old name "geosachem" any more. Would that be OK ? @bena-nasa

[mathomp4]

I have a concern. After this merge, the regrid.pl is not going to support the old name "geosachem" any more. Would that be OK ? @bena-nasa

@weiyuan-jiang Well, we can go with the "advice" we've always had: Use the regrid.pl from the model tag you want to run.

So, if you get a 10.22 GEOS, you'd expect it to look for achem_internal_rst. If it's an older one (GOCART1 days?) then regrid.pl would look for the "appropriate" geosachem_internal_rst file. I guess we sort of "broke" that in recent times.

If someone wants to use the latest regrid.pl with some old restarts, well, we might need to advise them to edit the perl script. I suppose you could put a comment in the code mentioning that this restart's name changed?

[mathomp4]

I pushed an update to try and fix the CI which is oddly failing.

[tclune]

cmake changes ok