Ralph,

what about automatically *not* building PSM2 if PSM is built and PSM2 is not explicitly required ? /* in order to be future proof, we could even do that only if we detect a symbol conflict */ we could abort if ompi is configure'd with both --with-psm and --with-psm2, or simply do nothing (the end user might know what he/she is doing, and there will be nothing to do on the ompi side
 when this gets fixed by the PSM folks)

Cheers,

Gilles

On 9/3/2015 10:21 AM, Ralph Castain wrote:
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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