add custom easyblock for BLIS

[wwweert123]

(created using eb --new-pr)

[wwweert123]

https://github.com/EESSI/software-layer/blob/f64a20d373a3047a55315a92401c0610bf526844/eb_hooks.py#L343-L358 This easyblock for BLIS was implemented to also take into account building on A64FX cpu architecture where additional configure opts are needed.

[boegel]

Thanks a lot for the contribution @wwweert123!

Do you mind also opening a companion PR for the recent BLIS easyconfigs, so clean them up so the custom easyblock for BLIS is being used?

Of course we'll make sure that this PR gets merged first...

[wwweert123]

Thanks a lot for the contribution @wwweert123!

Do you mind also opening a companion PR for the recent BLIS easyconfigs, so clean them up so the custom easyblock for BLIS is being used?

Of course we'll make sure that this PR gets merged first...

Oh yes, I have created a companion PR BLIS easyconfig that makes use of this custom easyblock. I had forgotten to mention it here in this PR.

easybuilders/easybuild-easyconfigs#20973

[Thyre]

This is probably not required anymore since #3773 is merged, right?

[boegel]

Yeah, this has bit-rotted a bit unfortunately...

Maybe @smoors can take a look if there's anything in here that should be ported over to the custom easyblock for BLIS that got merged via #3773 (and if not, close this)

[Crivella]

Beside minor differences in the behavior of the EConfing extra parameters the other relevant difference would be for a64fx

        # arch_name will only be available when archspec is available to easybuild, else arch_name will be unknown
        arch_name = get_cpu_arch_name()
        if arch_name == "a64fx":
            self.cfg.update('configopts', 'CFLAGS="$CFLAGS -DCACHE_SECTOR_SIZE_READONLY"')

which we are not passing

[boegel]

Beside minor differences in the behavior of the EConfing extra parameters the other relevant difference would be for a64fx

        # arch_name will only be available when archspec is available to easybuild, else arch_name will be unknown
        arch_name = get_cpu_arch_name()
        if arch_name == "a64fx":
            self.cfg.update('configopts', 'CFLAGS="$CFLAGS -DCACHE_SECTOR_SIZE_READONLY"')

which we are not passing

That would definitely be helpful to have, since in EESSI we now deal with this in a hook:

• also add -DCACHE_SECTOR_SIZE_READONLY to $CFLAGS when building BLIS 1.0 and 1.1 for A64FX EESSI/software-layer-scripts#75

[boegel]

@smoors Can you take a look at a follow-up PR for the BLIS easyblock that applies the additional things that were done in this PR but not in your merged PR #3773 ?

[smoors]

@smoors Can you take a look at a follow-up PR for the BLIS easyblock that applies the additional things that were done in this PR but not in your merged PR #3773 ?

done in #3938