Understood - for now, it appears RH has an acceptable solution by using the MCA 
param, so I see no need for further action until you complete the fix


> On Sep 4, 2015, at 7:45 AM, Friedley, Andrew <andrew.fried...@intel.com> 
> wrote:
> 
> The PSM2 MTL code I submitted to master, 1.10, and 2.x will auto-build if the 
> library is detected in the system; I don't think that's been changed since.  
> Feel free to disable the auto-build until we can get a PSM2 solution, but 
> we'd much prefer not to outright remove the PSM2 MTL.
> 
> Andrew
> 
>> -----Original Message-----
>> From: devel [mailto:devel-boun...@open-mpi.org] On Behalf Of Ralph
>> Castain
>> Sent: Thursday, September 3, 2015 4:44 PM
>> To: Open MPI Developers
>> Subject: Re: [OMPI devel] 1.10.0 issue
>> 
>> Yes, it actually is rather easy to do. I can check, but I think that should 
>> happen
>> now (unless psm2 was set to auto-build if the lib was detected). Regardless,
>> we can always have RH et al simply build with —enable-mca-no-build=mtl-
>> psm2 and that will solve the problem.
>> 
>> Please keep us posted - and thanks!
>> Ralph
>> 
>>> On Sep 3, 2015, at 3:44 PM, Friedley, Andrew <andrew.fried...@intel.com>
>> wrote:
>>> 
>>> Hi Ralph & crew,
>>> 
>>> I'm representing the Intel PSM team to Open MPI.  They're aware of the
>> problem and have seen the comments on both this thread and in OFI, and
>> are working on solving the issue within PSM2.  Current estimate is that it 
>> will
>> take 3-4 weeks.
>>> 
>>> If it comes to removing the PSM2 MTL from 1.10, would it instead be
>> possible to disable it from being configured/built by default, unless
>> specifically requested using --with-psm2?
>>> 
>>> Andrew
>>> 
>>>> -----Original Message-----
>>>> From: devel [mailto:devel-boun...@open-mpi.org] On Behalf Of Ralph
>>>> Castain
>>>> Sent: Wednesday, September 2, 2015 6:22 PM
>>>> To: Open MPI Developers
>>>> Subject: [OMPI devel] 1.10.0 issue
>>>> 
>>>> Hi folks
>>>> 
>>>> I regret to say that 1.10.0 is hitting an issue with at least one upstream
>> distro.
>>>> Apparently, there is a symbol conflict between the PSM and PSM2
>>>> libraries that precludes building both of those MTLs at the same
>>>> time. This is leading the distro to push for release of two OMPI
>>>> 1.10.0 builds - one with PSM and the other with PSM2.
>>>> 
>>>> IMO, this is a very undesirable situation. I agree with the distro
>>>> that delaying release for some significant time as this would impact
>> everyone else’s users.
>>>> Therefore, assuming that the PSM team is unable to quickly resolve
>>>> the problem in their libraries, my inclination is to release an
>>>> immediate 1.10.1 with the PSM2 MTL removed.
>>>> 
>>>> I’m soliciting input - any opinions?
>>>> Ralph
>>>> 
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