Re: [OMPI devel] RFC: Remove heterogeneous support

2014-04-25 Thread Ralph Castain
So it sounds like we may have a test platform, which leaves the question of repair George: can you give us some idea of what was broken and/or pointers on what needs to be done to repair it? On Apr 25, 2014, at 4:34 AM, Adrian Reber wrote: > On Fri, Apr 25, 2014 at 10:29:36AM +, Jeff Squ

Re: [OMPI devel] RFC: Well-known mca parameters

2014-04-25 Thread Ralph Castain
So long as this isn't a requirement, I don't see an issue with standardizing the syntax. I suspect Jeff's concern is with hard-coding ompi_info (and all its flavors) with an option that looks for a specific MCA param from every component. Seems somewhat icky from a software design standpoint, an

Re: [OMPI devel] RFC: Well-known mca parameters

2014-04-25 Thread Ralph Castain
On Apr 24, 2014, at 9:41 PM, Mike Dubman wrote: > not a requirement of course, but warm recommendation. Like you mentioned: > "component developers who choose to expose such information do so using the > suggested syntax, then that is a different proposal." > > >>>FWIW: we do not (and cannot,

Re: [OMPI devel] mosix patches

2014-04-25 Thread Pavel V. Kaygorodov
Hi! > I'm the original developer. The patch never got merged, but I have patches to > some branches. Which version are you using? For now, I'm not sticking to any specific version, I have spent last 3 days trying to adapt patches from mosix.org to 1.6.X, but without significant success :) Whic

Re: [OMPI devel] RFC: Remove heterogeneous support

2014-04-25 Thread Adrian Reber
On Fri, Apr 25, 2014 at 10:29:36AM +, Jeff Squyres (jsquyres) wrote: > On Apr 25, 2014, at 6:13 AM, Gilles Gouaillardet > wrote: > > > it is possible to use qemu in order to emulate unavailable hardware. > > for what it's worth, i am now running a ppc64 qemu emulated virtual > > machine on a

Re: [OMPI devel] RFC: Well-known mca parameters

2014-04-25 Thread Stephen Poole
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Although the one Mike suggests would be much easier for "end users", I think that in this case, if the end user is more of a Linux newbie, they would have scripts written for them, that the admins use or will be handed to them. Either way would be a g

Re: [OMPI devel] RFC: Well-known mca parameters

2014-04-25 Thread Jeff Squyres (jsquyres)
On Apr 25, 2014, at 7:01 AM, Mike Dubman wrote: > >>>ompi_info --all --parsable | egrep ':(compile|run)time_version' > > yep, this is much better, but I don`t think we should count on end-user to be > unix regex guru. I thought you said this was for support scripts? Users can easily do this:

Re: [OMPI devel] RFC: Well-known mca parameters

2014-04-25 Thread Mike Dubman
>>>ompi_info --all --parsable | egrep ':(compile|run)time_version' yep, this is much better, but I don`t think we should count on end-user to be unix regex guru. Ideally, following would be much user-friendlier: ompi_info --all --parsable --print-sys-libs-versions On Fri, Apr 25, 2014 at 1:32

Re: [OMPI devel] RFC: Well-known mca parameters

2014-04-25 Thread Jeff Squyres (jsquyres)
On Apr 24, 2014, at 1:38 AM, Mike Dubman wrote: > ** prefix each well-known MCA param with "print_": I like the overall idea of this RFC, but I'm not wild about this specific word "print" -- it seems weird. All the MCA parameters are *printed* -- the word "print" doesn't really distinguish an

Re: [OMPI devel] RFC: Remove heterogeneous support

2014-04-25 Thread Jeff Squyres (jsquyres)
On Apr 25, 2014, at 6:13 AM, Gilles Gouaillardet wrote: > it is possible to use qemu in order to emulate unavailable hardware. > for what it's worth, i am now running a ppc64 qemu emulated virtual > machine on an x86_64 workstation. > this is pretty slow (2 hours for configure and even more for

Re: [OMPI devel] RFC: Remove heterogeneous support

2014-04-25 Thread Gilles Gouaillardet
Jeff and all, On 2014/04/25 18:47, Jeff Squyres (jsquyres) wrote: > But ask that question a little differently: which is more complicated, > long-term maintenance of a feature which no one really tests (or even > has the hardware setup to test) or removal? it is possible to use qemu in order to e

Re: [OMPI devel] mosix patches

2014-04-25 Thread Alex Margolin
I'm the original developer. The patch never got merged, but I have patches to some branches. Which version are you using? On 24 Apr 2014 19:07, "Pavel V. Kaygorodov" wrote: > Hi! > > What is current status of mosix support in OpenMPI? > I have tried patches from > http://www.cs.huji.ac.il/wikis/M

Re: [OMPI devel] RFC: Remove heterogeneous support

2014-04-25 Thread Jeff Squyres (jsquyres)
On Apr 24, 2014, at 10:47 PM, Ralph Castain wrote: >> And, as George pointed out, I see a trend towards heterogeneity in >> HPC, to I'd say this feature will be rather more important in the >> future. > > We have been hearing about such "trends" for a long time, but have yet to see > them actua

Re: [OMPI devel] RFC: Well-known mca parameters

2014-04-25 Thread Mike Dubman
Also, the reason for rfc is this: https://svn.open-mpi.org/trac/ompi/ticket/4556#comment:5 On Fri, Apr 25, 2014 at 7:41 AM, Mike Dubman wrote: > not a requirement of course, but warm recommendation. Like you mentioned: > "component developers who choose to expose such information do so using >

Re: [OMPI devel] RFC: Well-known mca parameters

2014-04-25 Thread Mike Dubman
not a requirement of course, but warm recommendation. Like you mentioned: "component developers who choose to expose such information do so using the suggested syntax, then that is a different proposal." >>>FWIW: we do not (and cannot, for licensing reasons) link against Slurm, so please don't inc