Bug#684344: openmp problematic

2014-02-12 Thread Sébastien Villemot
Le mardi 04 février 2014 à 23:17 +0100, Julian Taylor a écrit : There are well known issues with the gnu openmp variant of openblas in respect to forks of applications. This causes numerous issues especially in the python world where forking is very common. see e.g.

Bug#684344: Fwd: Bug#684344: openmp problematic

2014-02-12 Thread Julian Taylor
sorry for duplicate, webmail fail. On Wed, Feb 12, 2014 at 5:41 PM, Sébastien Villemot sebast...@debian.orgwrote: Le mardi 04 février 2014 à 23:17 +0100, Julian Taylor a écrit : There are well known issues with the gnu openmp variant of openblas in respect to forks of applications. Please

Bug#684344: Fwd: Bug#684344: openmp problematic

2014-02-12 Thread Julian Taylor
On Wed, Feb 12, 2014 at 5:55 PM, Julian Taylor jtaylor.deb...@googlemail.com wrote: sorry for duplicate, webmail fail. On Wed, Feb 12, 2014 at 5:41 PM, Sébastien Villemot sebast...@debian.orgwrote: Le mardi 04 février 2014 à 23:17 +0100, Julian Taylor a écrit : There are well known

Bug#684344: Fwd: Bug#684344: openmp problematic

2014-02-12 Thread Julian Taylor
attached patch fixes the R program with pthread-openblas --- a/driver/others/memory.c +++ b/driver/others/memory.c @@ -1260,6 +1260,14 @@ static void gotoblas_memory_init(void) { } #endif +static void openblas_fork_handler() +{ + int err; + err = pthread_atfork

Bug#684344: openmp problematic

2014-02-04 Thread Julian Taylor
There are well known issues with the gnu openmp variant of openblas in respect to forks of applications. This causes numerous issues especially in the python world where forking is very common. see e.g. https://github.com/xianyi/OpenBLAS/issues/294