Debian packaging and openblas related crash when profiling in R
Dirk! Correct as usual!
On Tue, Dec 11, 2012 at 12:33 PM, Dirk Eddelbuettel <edd at debian.org> wrote:
| On Debian wheezy, I have the R packaging that CRAN (you) provide. I Not so -- I provide the distro package. Johannes provides the Debian "backport" build via CRAN, Michael does likewise for Ubuntu. | run into a little trouble while trying to fiddle with alternative | BLAS. | | I know you and I went around on this last year and I think perhaps | I've found something wrong in the framework, or I've just done | something wrong. | | I installed the packages openblas-base and openblas-dev, and they do | the "update alternatives" thing so that their shared library is at the | right spot. I can't tell if R runs any faster, but it does run, which | is encouraging. | | Now here's the problem I see. Using Rprof causes R to crash, but only | when openblas stuff is in the picture. I wondered what you think? |
Here's the evidence you are right. Before starting R, restrict openblas's use of threads in the environment $ export GOTO_NUM_THREADS=1 After that, HAPPY profiling in R! pj
Paul E. Johnson Professor, Political Science Assoc. Director 1541 Lilac Lane, Room 504 Center for Research Methods University of Kansas University of Kansas http://pj.freefaculty.org http://quant.ku.edu