Re: [OMPI users] Spawn and OpenFabrics

2009-06-07 Thread Allen Barnett
OK. I appreciate the suggestion and will definitely try it out. Thanks, Allen On Fri, 2009-06-05 at 10:14 -0400, Jeff Squyres wrote: > On Jun 2, 2009, at 3:26 PM, Allen Barnett wrote: > > I > > guess what I'm asking is if I will have to make my partitioner an > > OpenMPI program as well? > > >

Re: [OMPI users] Spawn and OpenFabrics

2009-06-05 Thread Jeff Squyres
On Jun 2, 2009, at 3:26 PM, Allen Barnett wrote: > Does OMPI say that it has IBV fork support? > ompi_info --param btl openib --parsable | grep have_fork_support My RHEL4 system reports: MCA btl: parameter "btl_openib_want_fork_support" (current value: "-1") MCA btl: information "b

Re: [OMPI users] Spawn and OpenFabrics

2009-06-02 Thread Allen Barnett
On Tue, 2009-06-02 at 12:27 -0400, Jeff Squyres wrote: > On Jun 2, 2009, at 11:37 AM, Allen Barnett wrote: > > > std::stringstream ss; > > ss << "partitioner_program " << COMM_WORLD_SIZE; > > system( ss.str().c_str() ); > > > > You'd probably see the same problem even if you strdup'ed the c_str()

Re: [OMPI users] Spawn and OpenFabrics

2009-06-02 Thread Jeff Squyres
On Jun 2, 2009, at 11:37 AM, Allen Barnett wrote: std::stringstream ss; ss << "partitioner_program " << COMM_WORLD_SIZE; system( ss.str().c_str() ); You'd probably see the same problem even if you strdup'ed the c_str() and system()'ed that. What kernel are you using? Does OMPI say that i

[OMPI users] Spawn and OpenFabrics

2009-06-02 Thread Allen Barnett
On Tue, 2009-05-19 at 08:29 -0400, Jeff Squyres wrote: > fork() support in OpenFabrics has always been dicey -- it can lead to > random behavior like this. Supposedly it works in a specific set of > circumstances, but I don't have a recent enough kernel on my machines > to test. > > It's be