Åke Sandgren <[email protected]> writes: > We set things up like this, > > things built with system compiler and libs outside of EasyBuild (/lap == > Locally Added Packages, this is where we used to install everything we > built before EB) > /lap/pmix, /lap/ucx, /lap/libevent, /lap/slurm > (And several versions of each below those dirs) > > Slurm is built against those installations of pmix and ucx, and pmix is > built against that libevent. > > The EasyBuild software tree is completely separate and the PMIx builds > there are only used when building OpenMPI. And for pointing IntelMPI to > an EasyBuild controlled PMIx version of libpmi.so > > Slurm is classified as system software and complete separate from the EB > tree, and thus needs to have support libraries (pmix/ucx etc) complete > separated too. > > The turnaround for new versions of PMIx/UCX used for building Slurm are > much slower since we only do that when there is a new version of Slurm > since there is no reason to change that until Slurm actually supports a > newer version... > > On 2/18/20 4:20 PM, Loris Bennett wrote: >> Åke Sandgren <[email protected]> writes: >> >>> Since Slurm is built with the system compiler you should also build its >>> PMIx/UCX builds with the system compiler (and the corresponding libevent >>> in case you don't use the system version), and keep them separate from >>> the EB installation. >> >> Sorry, I'm confused again. Do you mean that the PMIx versions should be >> built with the system compiler and *without* using EB? >> >> But aren't I still going to need to install PMIx via EB to allow adding >> PMIx as a dependency for OpenMPI via a hook?
OK, so you have the various PMIx versions installed both within *and* separate from EB - that's the bit I was missing. It is obviously a slightly clunky solution, but, as you say, not much maintenance needed once it has been set up. I think this is what we are going to implement too. Thanks for all the help! Cheers, Loris -- Dr. Loris Bennett (Mr.) ZEDAT, Freie Universität Berlin Email [email protected]
