[OpenBLAS_jll] Update to new build with BFloat16 kernels #53059
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giordano
added
building
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We also have a new SVE patch in Yggdrasil: https://github.com/JuliaPackaging/Yggdrasil/blob/master/O/OpenBLAS/OpenBLAS%400.3.26/bundled/patches/90-darwin-sve.patch that I don't see included here. It is needed for the Apple aarch64 BFloat enabled builds. |
The new build also includes patches to * improve multithreading * fix builds of BFloat16 kernels on AVX512BF16
…alues This would have caught an old upstream bug in OpenBLAS, which was later fixed in v0.3.14.
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Oops, added, thanks! |
ViralBShah
approved these changes
Jan 26, 2024
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Once this is in the nightly, how do I make BLAS calls? Is there a bgemm out there. I'm pretty sure that @timothyaldendavis cares too |
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Yeah you can just |
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This PR also
deps/patches/neoverse-generic-kernels.patch) not needed anymore for an old bug fixed upstream in OpenBLAS. This results in ~5x speedup in the computation ofBLAS.nrm2(and henceLinearAlgebra.normfor vectors longer thanLinearAlgebra.NRM2_CUTOFF(== 32) elements) when the neoversen1 kernels are used, e.g. by default on all Apple Silicon CPUsCorresponding PR in Yggdrasil: JuliaPackaging/Yggdrasil#7202. CC: @imciner2.