[OpenBLAS/lapack] Apply the patch from xianyi/OpenBLAS#3392

[DilumAluthge]

This pull request applies the patch from OpenMathLib/OpenBLAS#3392 to the following JLLs:

1. OpenBLAS_jll
2. OpenBLAS32_jll
3. OpenBLASHighCoreCount_jll

---

Refs JuliaLang/LinearAlgebra.jl#873
Refs Reference-LAPACK/lapack#625

[DilumAluthge]

@Keno Which version of OpenBLAS should I be applying this patch to? It seems to be "failing to apply the patch" when I try to apply it to OpenBLAS 0.3.10.

[Keno]

OpenBLAS vendors lapack in one of it's source directories. You'll have to adjust the patch file or patch invocation accordingly.

[DilumAluthge]

OpenBLAS vendors lapack in one of it's source directories. You'll have to adjust the patch file or patch invocation accordingly.

Alright, I'm now using the patch file from the relevant PR to OpenBLAS (OpenMathLib/OpenBLAS#3392).

[DilumAluthge]

It looks like the patch is applying correctly now. I put it in the three folders corresponding to OpenBLAS version 0.3.10. Is that sufficient, or should I also put it into the folders for other versions of OpenBLAS?

[DilumAluthge]

I guess I don't understand how the patch folders work here. If I add the patch file to OpenBLAS 0.3.10, does it automatically get applied to later OpenBLAS versions as well? Or do I manually need to symlink my patch file into the bundled/patches folder of each OpenBLAS version to which I want to apply the patch?

[staticfloat]

Yes, it needs to be symlinked into every patches folder that needs it.

[DilumAluthge]

The slicing expansion resulted in 257 jobs which exceeds the maximum allowable job count of 256.

😭 😭 😭

[vchuravy]

Do the HighBlasCount ones in a second PR

[ViralBShah]

Most likely, we won't need the highcorecounts going forward now that JuliaLang/julia#3667 is merged.

[DilumAluthge]

@vchuravy I disabled auto-merge because they are two CI failures.

[ViralBShah]

Have we applied this patch to the julia source build too? I believe the next step might be to bump this for master and if everything looks ok, we do the same for 1.6 and 1.7.

[DilumAluthge]

• master - [OpenBLAS/lapack] Fix the LinearAlgebra/tridiag segfaults by adding the relevant patch and bumping the OpenBLAS JLLs JuliaLang/julia#42546
• 1.7 - Backport #42546 to 1.7 JuliaLang/julia#42563
• 1.6 - Backport #42546 to 1.6 JuliaLang/julia#42564