cannot load the gnu compiling environment using spack-stack 1.6.0 on hera

[guoqing-noaa]

Describe the bug

I found that today I could NOT load the gnu compiling environment using spack-stack 1.6.0 on hera. The error information is as follows:

module load stack-gcc/9.2.0
Lmod has detected the following error:  The following module(s) are unknown: "stack-gcc/9.2.0"

Please check the spelling or version number. Also try "module spider ..."
It is also possible your cache file is out-of-date; it may help to try:
  $ module --ignore_cache load "stack-gcc/9.2.0"

Also make sure that all modulefiles written in TCL start with the string #%Module

when running module avail stack, only stack-intel/2021.5.0 is available.

But I have no problem to load stack-gcc/9.2.0 early last week.

To Reproduce
On Hera:

module use /contrib/spack-stack/spack-stack-1.6.0/envs/unified-env-rocky8/install/modulefiles/Core
module load stack-gcc/9.2.0

Expected behavior
The gnu compiling environment can be successfully loaded as before.

System:
hera

Additional context
I can load ``stack-gcc/9.2.0` early last week without a problem and successfully built and ran RDASApp on Hera. So something has been changed recently.

[ulmononian]

@guoqing-noaa we will take a look on the epic side and get back to you asap

[RatkoVasic-NOAA]

@guoqing-noaa

Current GNU installation is here (example from UFS-WM):
https://github.com/ufs-community/ufs-weather-model/blob/develop/modulefiles/ufs_hera.gnu.lua

I have new PR, and soon GNU for WM will switch to use like this:
https://github.com/RatkoVasic-NOAA/ufs-weather-model/blob/Hera-scratch4/modulefiles/ufs_hera.gnu.lua
(those both are for [email protected])

There is possibility you were using this:
/scratch1/NCEPDEV/nems/role.epic/spack-stack/spack-stack-1.6.0/envs/fms-2024.01/install/modulefiles/Core/stack-gcc/9.2.0.lua
and NOT this:
/contrib/spack-stack/spack-stack-1.6.0/envs/unified-env-rocky8/install/modulefiles/Core/
(we never officially used spack-stack-1.6.0 on /contrib directory, especially NOT one with old [email protected]).