Package Details: openblas-lapack 0.3.2-1

Git Clone URL: (read-only)
Package Base: openblas-lapack
Description: Optimized BLAS library based on GotoBLAS2 1.13 BSD (providing blas, lapack, and cblas)
Upstream URL:
Licenses: BSD
Conflicts: blas, cblas, lapack, lapacke, openblas
Provides: blas=3.8.0, cblas=3.8.0, lapack=3.8.0, lapacke=3.8.0, openblas
Submitter: sftrytry
Maintainer: eolianoe
Last Packager: eolianoe
Votes: 77
Popularity: 2.260095
First Submitted: 2013-11-20 23:53
Last Updated: 2018-07-30 12:03

Required by (271)

Sources (1)

Latest Comments

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kgizdov commented on 2018-08-11 17:12

Rerefencing the following issue and linked PR and discussion, I made some changes to the package(here) to make GIMP work and remove glibc deadlocks. Do you think it would be nice to include it, while it's still resolved?

solnce commented on 2018-07-30 07:58

Update is out:

adfjjv commented on 2018-07-25 11:38

OpenBLAS 0.3.1 is broken when running multi-threaded. Rediscovered this myself, then found and Workaround is OPENBLAS_NUM_THREADS=1

Until fix is released, please revert to 0.3.0 (or 0.2.20?). Who here wants their BLAS to be giving incorrect results? Scary that it's been broken for a month now. How many people's work for the past month has been ruined? Author is in no hurry to release a fix, either.

This package should not track upstream so aggressively!

Rufflewind commented on 2018-07-16 01:08


Rufflewind commented on 2018-07-16 01:08

There is a compatibility issue with GIMP that causes GIMP to hang during startup.

Workaround: rebuild openblas-lapack with USE_OPENMPI=1 (see PKGBUILD file) instead of USE_OPENMP=0.

jerry73204 commented on 2018-05-10 17:41

The dependency gcc-libs changes the version number of shared library from 4 to 5. I suggest to increase the pkgrel to enforce re-building of this package.

eolianoe commented on 2018-03-19 21:06

@asitdepends: why do you need static libs? If you want them, you juste need to staticlibs to the options

asitdepends commented on 2018-03-11 14:04

Would you update the package to make the static libraries also?

MaartenBaert commented on 2017-10-08 20:05

I know, OMP_NUM_THREADS has the same effect. But I am getting slightly better performance when I compile without multithreading. Probably because it reduces overhead.

adfjjv commented on 2017-10-08 09:27

@MaartenBaert If you're using OpenBlas in a multi-threaded application the simplest thing is to disable threading by setting environment variable OPENBLAS_NUM_THREADS to 1. No need to recompile.

See FAQ: