Installing LAMMPS prompts that the CPU architecture is unknown on AMD Milan

[hezhiqiang8909]

[hezhiqiang8909]

[boegel]

@ocaisa Any thoughts on this? Do we need a small enhancement for LAMMPS on AMD Milan?

[ocaisa]

This is addressed in #2213 but also requires a more recent version (and easyconfig) of LAMMPS (the existing version of Lammps is older than the Milan CPU)

[ocaisa]

It might be enough to just use the easyblock in the PR, the last changes we made were to ensure it was backwards compatible. If the version of archspec used as a dependency recognises it as Zen3 then it should work. Try adding --include-easyblocks-from-pr=2213 to your eb command

[ocaisa]

@hezhiqiang8909 We just merged the most recent LAMMPS releases (which includes all the updates required for the easyblock). If you'd like to try these you can use:

eb --from-pr=15876 --include-easyblocks-from-pr=2213

for foss/2021a, or

eb --from-pr=15877 --include-easyblocks-from-pr=2213

for foss/2021b

[boegel]

@ocaisa Should this issue be closed now that #2213 is merged?