hwloc_set_thread_cpubind() by itself works. I have it on a different test program and it binds the threads without a problem. The problem is when the thread is waiting on a barrier. I'll try strace and send you the results -------------------------- Alexandros Papadogiannakis
> Date: Wed, 16 Jun 2010 14:47:44 +0200 > From: firstname.lastname@example.org > To: email@example.com > Subject: Re: [hwloc-users] Problem with hwloc_set_thread_cpubind() and pthread_barrier_wait() on new debianj > > Αλέξανδρος Παπαδογιαννάκης, le Wed 16 Jun 2010 15:37:34 +0300, a écrit : > > The program uses hwloc_set_thread_cpubind() to bind some threads to specific > > cpus > > but now it doesn't work. hwloc_set_thread_cpubind() returns zero but doesn't > > bind > > the thread. > > This looks to me like a glibc or kernel bug. Could you check with strace > that a sched_setaffinity system call gets performed, and the returned > value? > > > The problem is that when I call hwloc_set_thread_cpubind() the threads > > are waiting on a posix barrier. > > That shouldn't be a problem. > > Samuel > _______________________________________________ > hwloc-users mailing list > firstname.lastname@example.org > http://www.open-mpi.org/mailman/listinfo.cgi/hwloc-users
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