[OMPI devel] RFC: IPv6 support

2009-09-16 Thread Ralph Castain
WHAT: change the IPv6 configuration option to enable IPv6 if and only if specifically requested WHY: IPv6 support is only marginally maintained, and is currently broken yet again. The current default setting is causing user systems to break if (a) their kernel has support for IPv6, but (b)

Re: [OMPI devel] application hangs with multiple dup

2009-09-16 Thread Edgar Gabriel
just wanted to give a heads-up that I *think* I know what the problem is. I should have a fix (with a description) either later today or tomorrow morning... Thanks Edgar Edgar Gabriel wrote: so I can confirm that I can reproduce the hang, and we (George, Rainer and me) have looked into that a

[OMPI devel] Dynamic languages, dlopen() issues, and symbol visibility of libtool ltdl API in current trunk

2009-09-16 Thread Lisandro Dalcin
Hi all.. I have to contact you again about the issues related to dlopen()ing libmpi with RTLD_LOCAL, as many dynamic languages (Python in my case) do. So far, I've been able to manage the issues (despite the "do nothing" policy from Open MPI devs, which I understand) in a more or less portable man

Re: [OMPI devel] Deadlock when creating too many communicators

2009-09-16 Thread Wolfgang Bangerth
All, there didn't appear any discussion on the problem below, but I believe that this is just yet another manifestation of what you have already found as ticket #2009. Best Wolfgang > Howdy, > here's a creative way to deadlock a program: create and destroy 65500 and > some communicators and s

Re: [OMPI devel] application hangs with multiple dup

2009-09-16 Thread Edgar Gabriel
there is a ticket on that topic already (#2009), and I just added some comments to that... Jeff Squyres wrote: On Sep 10, 2009, at 7:12 PM, Edgar Gabriel wrote: so I can confirm that I can reproduce the hang, and we (George, Rainer and me) have looked into that and are continue digging. I h

Re: [OMPI devel] Infiniband always disabled for required threadlevel MPI_THREAD_MULTIPLE ?

2009-09-16 Thread Kiril Dichev
On Tue, 2009-09-15 at 13:28 -0400, Jeff Squyres wrote: > On Sep 15, 2009, at 1:22 PM, Kiril Dichev wrote: > > > Then I noticed some code and comments in > > ompi/mca/btl/openib/btl_openib_component.c which seem to disable this > > component when MPI_THREAD_MULTIPLE is used for the initialization