Re: [OMPI devel] initial SCTP BTL commit comments?

2007-12-14 Thread Brad Penoff
On Nov 14, 2007 10:17 AM, Brad Penoff wrote: > > On Nov 14, 2007 5:11 AM, Terry Dontje wrote: > > > > Brad Penoff wrote: > > > On Nov 12, 2007 3:26 AM, Jeff Squyres wrote: > > > > > >> I have no objections to bringing this into the trunk, but I agree that > > >> an .ompi_ignore is probably a goo

Re: [OMPI devel] New BTL parameter

2007-12-14 Thread Gleb Natapov
If there is no objection I will commit this to the trunk next week. On Sun, Dec 09, 2007 at 05:34:30PM +0200, Gleb Natapov wrote: > Hi, > > Currently BTL has parameter btl_min_send_size that is no longer used. > I want to change it to be btl_rndv_eager_limit. This new parameter will > determine

Re: [OMPI devel] matching code rewrite in OB1

2007-12-14 Thread Gleb Natapov
On Fri, Dec 14, 2007 at 06:53:55AM -0500, Richard Graham wrote: > If you have positive confirmation that such things have happened, this will > go a long way. I instrumented the code to log all kind of info about fragment reordering while I chased a bug in openib that caused matching logic to malfu

[OMPI devel] Gnu #ident

2007-12-14 Thread Jeff Squyres
We recently put in a feature on the trunk to put in ident strings in the 3 OMPI libraries. Short version: -- We use "#ident foo" for GNU, but it emits a stderr warning that it's a GCC extension when used with -pedantic (we check that #ident works in configure). Does anyone car

[OMPI devel] Fwd: [OMPI svn-full] svn:open-mpi r16959

2007-12-14 Thread Jeff Squyres
This commit does what we previously discussed: it only compiles the XOOB openib CPC if XRC support is actually present (vs. having a stub XOOB when XRC is not present). This is on the /tmp-public/openib-cpc branch. I have some hermon hca's, but due to dumb issues, I don't have XRC- capabl

Re: [OMPI devel] IPv4 mapped IPv6 addresses

2007-12-14 Thread Brian W. Barrett
On Fri, 14 Dec 2007, Adrian Knoth wrote: Should we consider moving towards these mapped addresses? The implications: - less code, only one socket to handle - better FD consumption - breaks WinXP support, but not Vista/Longhorn or later - requires non-default kernel runtime setting on Op

[OMPI devel] IPv4 mapped IPv6 addresses

2007-12-14 Thread Adrian Knoth
Hi! The current BTL/TCP and OOB/TCP code contains separate sockets for IPv4 and IPv6. Though it has never been a problem for me, this might cause an out-of-FDs-error in large clusters. (IIRC, rhc has already pointed out this issue) A possible way to reduce FD consumption would be the use of IPv4

Re: [OMPI devel] matching code rewrite in OB1

2007-12-14 Thread Richard Graham
If you have positive confirmation that such things have happened, this will go a long way. I will not trust the code until this has also been done with multiple independent network paths. I very rarely express such strong opinions, even if I don't agree with what is being done, but this is the co

Re: [OMPI devel] matching code rewrite in OB1

2007-12-14 Thread Gleb Natapov
On Thu, Dec 13, 2007 at 06:16:49PM -0500, Richard Graham wrote: > The situation that needs to be triggered, just as George has mentions, is > where we have a lot of unexpected messages, to make sure that when one that > we can match against comes in, all the unexpected messages that can be > matche