Re: [OMPI devel] System V Shared Memory for OpenMPI:Request forCommunity Input and Testing

2010-05-05 Thread Christopher Samuel
On 04/05/10 10:53, Ashley Pittman wrote: > I'm surprised by Samuels description of the problem > because it's not how I remember it and from what Chris > says it doesn't reflect what is in linux Git code either. Actually I think it was Ethan who reported the problem and that was on a Solaris syst

Re: [OMPI devel] System V Shared Memory for OpenMPI:Request forCommunity Input and Testing

2010-05-04 Thread Ashley Pittman
On 4 May 2010, at 15:41, Jeff Squyres wrote: > On May 4, 2010, at 9:32 AM, Ashley Pittman wrote: > >>> One thing to be careful with a run-time check is that you might not want >>> *all* processes on a box to try to alloc a sysv segment, fork a child, try >>> to connect, ...etc. With large cou

Re: [OMPI devel] System V Shared Memory for OpenMPI:Request forCommunity Input and Testing

2010-05-04 Thread Jeff Squyres
On May 4, 2010, at 9:32 AM, Ashley Pittman wrote: > > One thing to be careful with a run-time check is that you might not want > > *all* processes on a box to try to alloc a sysv segment, fork a child, try > > to connect, ...etc. With large count boxen, you might run out of sysv > > shmem segm