On 13 May 2020 at 15:25, Adrien FABRE wrote: | Thank you very much Dirk!
De rien! | Le mer. 13 mai 2020 à 14:59, Dirk Eddelbuettel <e...@debian.org> a écrit : | | > | > Salut Adrien, | > | > It appears to be a bad OpenMP and and OpenBLAS interaction you can (for | > now) | > avoid) by replacing the 'pthread' variant of OpenBLAS with the OpenMP | > version | > (see the thread for details). Doing | > | > sudo apt install libopenblas-openmp-dev | > sudo apt remove libopenblas-pthread-dev | > | | This works! Thank's a lot! | | should do -- make sure you do the second step too to ensure that the pthread | > variant is remove as it would rank higher. Check via `R -s -e | > 'sessionInfo()'` | > and look closely at the path printed for blas+lapack. Without pthread you | > should be good. | > | | The command yields: | BLAS: /usr/lib/x86_64-linux-gnu/blas/libblas.so.3.9.0 | LAPACK: /usr/lib/x86_64-linux-gnu/openblas-pthread/liblapack.so.3 | so pthread still seems there in LAPACK, but I think the bug solved | nonetheless. That was *not* my experience, and hence the recommendation to remove it. Maybe my command was wrong above. Consider sudo apt remove libopenblas-pthread-dev libopennlas0-pthread as more focussed. My bad. | > Seb, CC'ed, and who is I have that right ma actually pretty close to you | > via | > the PSE, is actually looking for someone with the proper hardware to | > create a | > proper bug report. I was able to reproduce this once on my systems (both | > Ubuntu and Debian testing) but was unable later. Some hardware dependence | > still likely. | > | | What a small world! Happy to help with a bug report: how can I do that? I would start with 'cat /proc/cpuinfo'. Maybe we should take this off-list. To confirm, you are on Ubuntu though? Would be good to have this on Debian testing. | > So in short: yes, we're aware, there is a workaround, but we could use help | > in pinning it down. And sorry for the trouble. Apparently an old bug | > reborn. | > | > Amicalement, Dirk | > | > PS Am a AMSE grad myself though it had a different name at the time ;-) | > | Great, happy to see that economists can also code! At last some competition for all the monkeys with typewriters. Cheers, Dirk -- http://dirk.eddelbuettel.com | @eddelbuettel | e...@debian.org _______________________________________________ R-SIG-Debian mailing list R-SIG-Debian@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-debian
