Re: [OMPI users] [EXTERNAL] Re: How to find MPI ranks located in remote nodes?

2014-12-02 Thread George Bosilca
On Tue, Dec 2, 2014 at 9:56 AM, Jeff Squyres (jsquyres) wrote: > I like the OMPI_ prefix because it clearly identifies the function as > specific to Open MPI (i.e., you really should enclose it in #if > defined(OPEN_MPI) / #endif). > That's not enough. They will have to check for the right versi

Re: [OMPI users] Noob installation problem

2014-12-02 Thread Wildes Andrew
Brilliant! That seems to have worked. Many thanks again for your time. > From: jsquy...@cisco.com > To: us...@open-mpi.org > Date: Tue, 2 Dec 2014 21:58:55 + > Subject: Re: [OMPI users] Noob installation problem > > Ah. > > The problem is that you're trying to build OMPI in a directory that

Re: [OMPI users] Noob installation problem

2014-12-02 Thread Jeff Squyres (jsquyres)
Ah. The problem is that you're trying to build OMPI in a directory that contains a space: /Users/wildes/Desktop/untitled folder/openmpi-1.8.3 Make that "untitled-folder" or "untitled_folder" or even "foo" -- anything without a space. Then you should be good. Most Linux/POSIX-ish systems

Re: [OMPI users] Noob installation problem

2014-12-02 Thread Wildes Andrew
Hi Jeff, Many thanks for your rapid reply. Please find the relevant file attached. Thanks again, Andrew > From: jsquy...@cisco.com > To: us...@open-mpi.org > Date: Tue, 2 Dec 2014 19:50:35 + > Subject: Re: [OMPI users] Noob installation problem > > This is new -- I haven't seen configure fail

Re: [OMPI users] mmaped memory and openib btl.

2014-12-02 Thread Jeff Squyres (jsquyres)
On Dec 2, 2014, at 3:15 PM, Emmanuel Thomé wrote: > Thanks for pointing me to ummunotify, this sounds much more robust > than the fragile hook-based approach. I'll try this out. It is -- see: https://github.com/open-mpi/ompi/blob/master/README#L665-L682 ummunotify is distributed as part of

Re: [OMPI users] mmaped memory and openib btl.

2014-12-02 Thread Emmanuel Thomé
Hi, Thanks much for your answer. I agree, this can wait for 1.8.5, since as you say there are workarounds. I'm gonna #if-protect the offending block in my code based on OMPI version range, and have a fallback which does not use mmap/munmap. I'll follow the thread on the github tracker. Thanks f

Re: [OMPI users] Noob installation problem

2014-12-02 Thread Jeff Squyres (jsquyres)
This is new -- I haven't seen configure fail for libevent before. :-) Can you send the file opal/mca/event/libevent2021/libevent/config.log? (please compress) On Dec 2, 2014, at 2:20 PM, Wildes Andrew wrote: > Hi Timothy, > > Many thanks for your e-mail, and my apologies for replying so la

Re: [OMPI users] Noob installation problem

2014-12-02 Thread Wildes Andrew
Hi Timothy, Many thanks for your e-mail, and my apologies for replying so late. You were quite right - the GCC compiler installation is faulty. I downloaded and reinstalled Xcode, and now am substantially further. Compiling "Hello World" now works :) I'm still running into some sort of compiler

Re: [OMPI users] mmaped memory and openib btl.

2014-12-02 Thread Jeff Squyres (jsquyres)
You got caught in the SC/US Thanksgiving holiday delay. Sorry about that! We talked about this on the weekly call today, and decided the following: 1. We're going to push this to 1.8.5, for two main reasons: 1a. There's workarounds available. 1b. We need some time to figure this out, but would

Re: [OMPI users] [EXTERNAL] Re: How to find MPI ranks located in remote nodes?

2014-12-02 Thread Nick Papior Andersen
Just to drop in, I can/and will provide whatever interface you want (if you want my contribution). However just to help my ignorance, 1. Adam Moody's method still requires a way to create a distinguished string per processor, i.e. the spilt is entirely done via the string/color, which then needs

Re: [OMPI users] [EXTERNAL] Re: How to find MPI ranks located in remote nodes?

2014-12-02 Thread Jeff Squyres (jsquyres)
On Dec 2, 2014, at 1:10 AM, George Bosilca wrote: >> Are you referring to something Adam Moody proposed? Or some other Adam? > > He did more than proposing, he provided a link to the implementation in SCR. > So yes, I was indeed referring to Adam Moody. Ah -- you're referring to http://www.o

Re: [OMPI users] [EXTERNAL] Re: How to find MPI ranks located in remote nodes?

2014-12-02 Thread George Bosilca
> On Dec 2, 2014, at 00:37 , Jeff Squyres (jsquyres) wrote: > > On Nov 28, 2014, at 11:58 AM, George Bosilca wrote: > >> The same functionality can be trivially achieved at the user level using >> Adam's approach. If we provide a shortcut in Open MPI, we should emphasize >> this is an MPI ex