add checking and setting restart flag in CICE6 config file in gcm_run

[zhaobin74]

This PR added a step of restart checking and config updating if certain field exist in CICE6 restart file.
This is necessary due to change in GEOS-ESM/GEOSgcm_GridComp#1101

[mathomp4]

Oooh boy. This is sort of scary that we are calling ncdump in this. I'm not sure we are guaranteed to have ncdump on the PATH. We don't usually add the Baselibs bin directory to the PATH, though I suppose it would be on Spack.

I wonder if it might be more portable (if more annoying) to make our own Fortran program to do this detection?

[zhaobin74]

Oooh boy. This is sort of scary that we are calling ncdump in this. I'm not sure we are guaranteed to have ncdump on the PATH. We don't usually add the Baselibs bin directory to the PATH, though I suppose it would be on Spack.

I wonder if it might be more portable (if more annoying) to make our own Fortran program to do this detection?

Thanks, @mathomp4. Yeah, relying on ncdump is not good.
Is there anything in current GEOS that could achieve that? Just need to check if certain fields exist in the .nc file.

[mathomp4]

@zhaobin74 I am not sure. I'll ask around our group as we might have something.

If not, the program would be pretty trivial I bet. Only question is: where to put it in GEOS. I'll get back to you, if nothing else, with something to test.

[mathomp4]

@zhaobin74 Actually, ncdump might just be as easy as anything else. Do you mind if I push an update to this and then you can test it out?

[zhaobin74]

@zhaobin74 Actually, ncdump might just be as easy as anything else. Do you mind if I push an update to this and then you can test it out?

@mathomp4, not at all. Feel free to push. Just wonder if ncdump is universally available in all systems GEOS runs on. In fact, I am building a small Fortran utility to replace ncdump.

[mathomp4]

@zhaobin74 Actually, ncdump might just be as easy as anything else. Do you mind if I push an update to this and then you can test it out?

@mathomp4, not at all. Feel free to push. Just wonder if ncdump is universally available in all systems GEOS runs on. In fact, I am building a small Fortran utility to replace ncdump.

@zhaobin74 I mean, yes, it should be. We have two cases we might be in:

1. We use Baselibs and well, Baselibs has ncdump
2. We use Spack and we'd have it there too

[mathomp4]

Okay. I pushed up a small change. Essentially added the Baselibs bin to the PATH. Of course, if a user already has ncdump in their PATH that'll win.

[zhaobin74]

Okay. I pushed up a small change. Essentially added the Baselibs bin to the PATH. Of course, if a user already has ncdump in their PATH that'll win.

Thanks, @mathomp4. As long as ncdump is built as part of the Baselib, it should work.