Compilation Tests for ARW

[islas]

TYPE: enhancement

KEYWORDS: testing, compilation

SOURCE: internal

DESCRIPTION OF CHANGES:
Problem:
The testing frameworks (github actions nor Jenkins) don't run a wide array of compilation tests per compiler family commonly available.

Solution:
Use the github actions / hpc-workflows testing framework to run serial, sm, dm, and dm+sm for GNU, Intel Classic & OneAPI, and PGI/nvhpc on Derecho. Tests will run collectively in one node in parallel to maximize core hour allocations.

TESTS CONDUCTED:

1. Tests can be run locally on Derecho by using the .ci/hpc-workflows runner.py to launch all tests as separate jobs, but this is inefficient and not exactly as the tests run. To emulate the tests as done in the github actions workflow use the additional args set in the respective testSet of .github/workflows/.ci.yml and provide alternate directories from which to compile. This can be facilitated via :

• clone WRF branch that features these changes into <dir>
• list names of tests you want space-delimited in variable, e.g. export tests="make-gnu-serial make-gnu-dm"
• create copy test dirs with something like printf "%s\n" $tests | xargs -i -P 4 cp -Rp <dir> {}
• Create alt dirs run locations from test definitions. In this case one directory up from each, this can be done with export altDirs=$( printf "../%s/.ci " $tests ) (note the extra space!)
• launch tests using runner and join args along with -alt $altDirs
• Final command should look like

<dir>/.ci/hpc-workflows/.ci/runner.py <dir>/.ci/wrf_compilation_tests-make.json -t $tests -a <account> -p <num parallel> -tp 1 -j='{"node_select":{"-l ":{"select":1}}}' -jn <job name> -alt $altDirs

[weiwangncar]

The regression test results:

Test Type              | Expected  | Received |  Failed
= = = = = = = = = = = = = = = = = = = = = = = =  = = = =
Number of Tests        : 23           24
Number of Builds       : 60           57
Number of Simulations  : 158           150        0
Number of Comparisons  : 95           86        0

Failed Simulations are: 
None
Which comparisons are not bit-for-bit: 
None

[mgduda]

This looks good to me, and it's great to have compilation tests for several compilers.