gcc In my-phlex-environment (test in alma-linux9 arch, cpu x86-64)

[physnerds]

Test Platform

I followed the phlex installation based on the INSTALLATION.md document. I used a base alma9 linux docker container to test the installation process.

The test is done in the following OS version and CPU architecture:

[root@cdd9dbade9ed phlex-work-dir]# cat /etc/os-release 
NAME="AlmaLinux"
VERSION="9.7 (Moss Jungle Cat)"
ID="almalinux"
ID_LIKE="rhel centos fedora"
VERSION_ID="9.7"
PLATFORM_ID="platform:el9"

Architecture:                x86_64
  CPU op-mode(s):            32-bit, 64-bit
  Address sizes:             46 bits physical, 48 bits virtual
  Byte Order:                Little Endian
CPU(s):                      32
Vendor ID:                   GenuineIntel
  Model name:                13th Gen Intel(R) Core(TM) i9-13950HX
    CPU family:              6

Issue

In a new session of my-phlex-environment , I see that which gcc is pointed to /usr/bin/gcc (which may not be same version of spack installed one) by default and have to do spack load gcc in each new session. Perhaps a one time spack add gcc@14 ; spack install in my-phlex-environment to make sure gcc is always pointed to the spack installed one when user loads the my-phlex-environment? If this is intentional, please ignore and close this issue.

[root@cdd9dbade9ed phlex-work-dir]# spack env activate my-phlex-environment
[root@cdd9dbade9ed phlex-work-dir]# which spack
spack ()
{ 
    : this is a shell function from: /scratch/root/phlex-work-dir/spack/share/spack/setup-env.sh;
    : the real spack script is here: /scratch/root/phlex-work-dir/spack/bin/spack;
    _spack_shell_wrapper "$@";
    return $?
}
[root@cdd9dbade9ed phlex-work-dir]# which phlex
/scratch/root/phlex-work-dir/spack/var/spack/environments/my-phlex-environment/.spack-env/view/bin/phlex
[root@cdd9dbade9ed phlex-work-dir]# which gcc
/usr/bin/gcc
[root@cdd9dbade9ed phlex-work-dir]# spack find gcc
==> In environment my-phlex-environment
==> 1 root specs
-- no arch / no compilers ---------------------------------------
[+] phlex

-- linux-almalinux9-skylake / %c,cxx=gcc@11.5.0 -----------------
gcc@14.3.0

-- linux-almalinux9-x86_64 / no compilers -----------------------
gcc@11.5.0
==> 2 installed packages
==> 0 concretized packages to be installed (show with `spack find -c`)
[root@cdd9dbade9ed phlex-work-dir]# spack load gcc@14
[root@cdd9dbade9ed phlex-work-dir]# which gcc
/scratch/root/phlex-work-dir/spack/opt/spack/linux-skylake/gcc-14.3.0-txlqz5htk5rtldijbxrzdtfco5dbdie5/bin/gcc