Use DSOs?

[tclune]

During the development of GOCART2G, we updated the rest of the GCM to use DSOs and thereby eliminated compile time dependencies between components. GOCART2G has not been updated in that manner.

Should this be done before v2.0.0 or after?

[amdasilva]

Be my guest to implement DSOs, wthatever that is... I am assuming this is a cmake level update.

[amdasilva]

@tclune Is this something to be done now?

[tclune]

@amdasilva I think we can do it with relative ease at any point. Relatively simple CMake surgery.

@atrayano did recently do something like this with MIT ocean, and got different answers which gave us pause; so we'd best double check that there are no surprises with GOCART.

I can add it to the backlog for @weiyuan-jiang

[weiyuan-jiang]

There seems already no dependency of gorcar2g on its children

GOCART/ESMF/GOCART2G_GridComp/CMakeLists.txt

Lines 24 to 29 in 4c94179

	set (dependencies MAPL Chem_Shared2G Process_Library esmf)
	esma_add_library (${this}
	SRCS ${srcs}
	SUBCOMPONENTS ${alldirs}
	DEPENDENCIES ${dependencies}
	)

[weiyuan-jiang]

@tclune , what is the specific issue here?

[tclune]

The use statements here should go away:

GOCART/ESMF/GOCART2G_GridComp/GOCART2G_GridCompMod.F90

Lines 20 to 24 in 4c94179

	use DU2G_GridCompMod, only : DU2G_setServices => SetServices
	use SS2G_GridCompMod, only : SS2G_setServices => SetServices
	use SU2G_GridCompMod, only : SU2G_setServices => SetServices
	use CA2G_GridCompMod, only : CA2G_setServices => SetServices
	use NI2G_GridCompMod, only : NI2G_setServices => SetServices

Need to use add child via DSO interface.

[tclune]

Note that the harder part is likely to be dealing with run-time path issues. You'll need to work with @mathomp4 to have a short term and long term solution for that.