Hi Martin, This is a known bug. Definitely related to Ubuntu (debian), libopenblas and possibly specific hardware. Here's a bug report on the Debian list
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=961725 Best, Eric On Sun, May 31, 2020 at 4:38 AM Bert Gunter <bgunter.4...@gmail.com> wrote: > No clue. > > Worked fine in R 4.0.0 > I would try updating R.Maybe your BLAS got corrupted. > > Bert Gunter > > "The trouble with having an open mind is that people keep coming along and > sticking things into it." > -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) > > > On Sat, May 30, 2020 at 5:57 PM Martin Møller Skarbiniks Pedersen < > traxpla...@gmail.com> wrote: > > > Hi, > > Is this a bug or just me doing something stupid? > > solve(m) never returns and eats 100% CPU. > > > > > sessionInfo() > > R version 3.6.3 (2020-02-29) > > Platform: x86_64-pc-linux-gnu (64-bit) > > Running under: Ubuntu 20.04 LTS > > > > Matrix products: default > > BLAS: /usr/lib/x86_64-linux-gnu/openblas-pthread/libblas.so.3 > > LAPACK: /usr/lib/x86_64-linux-gnu/openblas-pthread/liblapack.so.3 > > > > Random number generation: > > RNG: Mersenne-Twister > > Normal: Inversion > > Sample: Rounding > > > > locale: > > [1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C > > [3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8 > > [5] LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8 > > [7] LC_PAPER=en_US.UTF-8 LC_NAME=C > > [9] LC_ADDRESS=C LC_TELEPHONE=C > > [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C > > > > attached base packages: > > [1] stats graphics grDevices utils datasets methods base > > > > loaded via a namespace (and not attached): > > [1] compiler_3.6.3 > > > set.seed(1) > > > m <- matrix(sample(1:25), nrow=5) > > > solve(m) > > > > [[alternative HTML version deleted]] > > > > ______________________________________________ > > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > > https://stat.ethz.ch/mailman/listinfo/r-help > > PLEASE do read the posting guide > > http://www.R-project.org/posting-guide.html > > and provide commented, minimal, self-contained, reproducible code. > > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.