Segmentation fault in initialization with intel 18.0.3

[billsacks]

Brief summary of bug

On hobart, which uses intel 18.0.3, the test SMS.f10_f10_musgs.I2000Clm50BgcCrop.hobart_intel.clm-crop fails with a segmentation fault in initialization, pointing to this line (the subroutine declaration line):

CTSM/src/main/clm_initializeMod.F90

Line 42 in 95fc9e1

subroutine initialize1(gindex_ocn)

@swensosc originally ran into this bug and found that he could avoid the problem by removing the optional gindex_ocn argument. But that argument is needed for the nuopc and (upcoming) lilac caps. I have found that I can also solve the problem by changing the intent of the argument from out to inout. I'm thinking this is a compiler bug, but I'll make that change on a branch to work around the issue.

General bug information

CTSM version you are using: ctsm1.0.dev084

Does this bug cause significantly incorrect results in the model's science? No

Configurations affected: All with particular versions of the intel compiler.

[billsacks]

Fixed in 2d277c1 (on lilac_cap branch).

[ekluzek]

Marius seems to be having a similar problem on his machine in Oslo when running with a single task. I'm going to check with him what version of intel he's using. Thanks for adding this issue!

[ekluzek]

Francis would like to have the workaround in place for his work on the NASA machine Pleadies. The work around does work for him.

[billsacks]

Cherry-picked onto a branch that should come to master soon as 28dad04