Public bug reported: Problem first alerted on Octave forum, but decided to be a Ubuntu issue with Openblas.
https://octave.1599824.n4.nabble.com/Octave-5-2-0-Ubuntu-20-04-Long- duration-of-complex-matrix-inverse-td4696435.html Using the apt installed version of Octave, the openblas library doesn't seem to be linked. octave:1> version -lapack ans = Linear Algebra PACKage Version 3.9.0 octave:2> version -blas ans = unknown or reference BLAS octave:3> tic; eig(rand(91)); toc Elapsed time is 0.00454998 seconds. octave:4> tic; eig(rand(92)); toc # This hangs forever. BTW the snap version of Octave under Ubuntu 20.04 seems to work fine. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: libopenblas-base 0.3.8+ds-1 ProcVersionSignature: Ubuntu 5.4.0-28.32-generic 5.4.30 Uname: Linux 5.4.0-28-generic x86_64 ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: XFCE Date: Sun May 3 12:12:03 2020 InstallationDate: Installed on 2020-05-02 (1 days ago) InstallationMedia: Xubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) ProcEnviron: LANGUAGE=en_US PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: openblas UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: openblas (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug focal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1876598 Title: octave does not link to openblas To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openblas/+bug/1876598/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
