# \#openblas

**URL:** https://discourse.julialang.org/tag/openblas/1089.md

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## [How to call blas getrf, getri properly ? i want to create a benchmark inverse matrix using gauss, crout, native julia inv(A) and BLAS direct](https://discourse.julialang.org/t/how-to-call-blas-getrf-getri-properly-i-want-to-create-a-benchmark-inverse-matrix-using-gauss-crout-native-julia-inv-a-and-blas-direct/128771)

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**Author:** [@Roberto\_Bagyo](https://discourse.julialang.org/u/Roberto_Bagyo)\
**Replies:** 5\
**Last updated:** [May 7, 2025, 5:38pm UTC](https://discourse.julialang.org/t/how-to-call-blas-getrf-getri-properly-i-want-to-create-a-benchmark-inverse-matrix-using-gauss-crout-native-julia-inv-a-and-blas-direct/128771 "2025-05-07T17:38:06Z")

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hello, i am new here. fortran based but just for fun actually. i tried to convert test\_fpu.f90 from polyhedron benchmark inverse matrix. i heard julia is multihreading and easier to code, then dgemm performance is highe…

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## [Poor openBLAS performance for large matrix multiply?](https://discourse.julialang.org/t/poor-openblas-performance-for-large-matrix-multiply/119354)

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**Author:** [@gluon-free](https://discourse.julialang.org/u/gluon-free)\
**Replies:** 17\
**Last updated:** [April 4, 2025, 11:03am UTC](https://discourse.julialang.org/t/poor-openblas-performance-for-large-matrix-multiply/119354 "2025-04-04T11:03:02Z")

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I am new to Julia and not an experienced programmer. Playing with things and trying simple benchmarks for my new Ryzen 9950x. This one rises a question: using MKL using CUDA, LinearAlgebra, Pkg, BenchmarkTools let N = …

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## [Stripping OpenBLAS from private build of Julia?](https://discourse.julialang.org/t/stripping-openblas-from-private-build-of-julia/106150)

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**Author:** [@greatpet](https://discourse.julialang.org/u/greatpet)\
**Replies:** 4\
**Last updated:** [November 13, 2023, 10:45pm UTC](https://discourse.julialang.org/t/stripping-openblas-from-private-build-of-julia/106150 "2023-11-13T22:45:37Z")

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It’s well known that BLAS buffers are the largest source of RAM usage by Julia at startup. Would this problem be gone if the stdlib LinearAlgebra is not loaded at startup? I understand that changing this publicly may be …

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## [Proper way to install Julia with \`OPENBLAS\_NUM\_THREADS=1\`](https://discourse.julialang.org/t/proper-way-to-install-julia-with-openblas-num-threads-1/104855)

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**Author:** [@pat-alt](https://discourse.julialang.org/u/pat-alt)\
**Replies:** 4\
**Last updated:** [October 11, 2023, 3:29pm UTC](https://discourse.julialang.org/t/proper-way-to-install-julia-with-openblas-num-threads-1/104855 "2023-10-11T15:29:36Z")

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Related to: Odd thread calling behavior on HPC I’ve been experiencing some issues on our uni’s HPC due to OpenBLAS thread calling (see link to related discussion above). The issue can be resolved by just adding/modifyin…

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## [OpenBLAS much slower on Windows than Linux](https://discourse.julialang.org/t/openblas-much-slower-on-windows-than-linux/84562)

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**Author:** [@PeterSimon](https://discourse.julialang.org/u/PeterSimon)\
**Replies:** 4\
**Last updated:** [July 23, 2022, 1:09am UTC](https://discourse.julialang.org/t/openblas-much-slower-on-windows-than-linux/84562 "2022-07-23T01:09:21Z")

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This is a continuation of a discussion in issues 159 and 166 of LinearSolve.jl. I have two computers with similar, 8-core i7-9700 CPUs, one of which runs Windows and the other Manjaro Linux. I ran the benchmark script …

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## [Realistically, how close is Gaius.jl to becoming a full replacement for BLAS in Julia?](https://discourse.julialang.org/t/realistically-how-close-is-gaius-jl-to-becoming-a-full-replacement-for-blas-in-julia/42780)

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**Author:** [@xiaodai](https://discourse.julialang.org/u/xiaodai)\
**Replies:** 13\
**Last updated:** [August 16, 2020, 7:37pm UTC](https://discourse.julialang.org/t/realistically-how-close-is-gaius-jl-to-becoming-a-full-replacement-for-blas-in-julia/42780 "2020-08-16T19:37:06Z")

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https://github.com/MasonProtter/Gaius.jl I the above and is amazed. I always thought that BLAS, MKL etc are so complex and so well optimised that they are pretty much irreplaceable. Even if Gauis is slower for cases, h…