[mpich-discuss] UCX run-time warnings

[Raffenetti, Kenneth J.]

Could you try an development build (mpich at develop) and see if the 
warnings persist? 3.3.2 only contains critical bug fixes. Our master git 
branch has diverged quite a bit, especially the ch4 device.

Ken

On 11/26/19 1:04 PM, Sajid Ali via discuss wrote:
> Hi MPICH-developers,
> 
> I’ve built MPICH-3.3.2 from source on my univ. cluster to ensure that 
> jobs can be launched with slurm’s srun (via —mpi=pmi2, slurm’s native 
> pmi version). I built mpich from source using spack using ch4:ucx.
> 
> I see the following errors in my outfile (from osu-micro-benchmarks runs):
> 
> |.... slurmstepd: error: mpi/pmi2: no value for key in req .... 
> [1574612953.443924] [qnode5038:30333:0] mpool.c:38 UCX WARN object 
> 0x1b88d00 was not returned to mpool ucp_rkeys ... ` |
> 
> as shown in a typical outfile here.
> 
> I don’t see such errors with using openmpi-4.0.2 which was also built 
> with UCX as the primary transport layer protocol where I compiled a 
> newer version of UCX from source.
> 
> I’m attaching the build log from mpich install for reference.
> 
> |Windows Terminal[sas4990 at quser10 ~]$ spack find -ldv mpich%gcc at 8.3.0 
> ==> 1 installed package -- linux-rhel7-ivybridge / gcc at 8.3.0 
> ---------------------------- btlyk64 mpich at 3.3.2 device=ch4 +hydra 
> netmod=ucx +pci pmi=pmi2 +romio+slurm~verbs+wrapperrpath eb74crw 
> libpciaccess at 0.13.5 t6h6tgg libxml2 at 2.9.9~python 46i2h6v libiconv at 1.16 
> dnbfmo2 xz at 5.2.4 xaq5v23 zlib at 1.2.11+optimize+pic+shared 77kx7yy 
> slurm at 19-05-3-2~gtk~hdf5~hwloc~mariadb~pmix+readline [sas4990 at quser10 ~]$ |
> 
> Thanks in advance for your help!
> 
> -- 
> Sajid Ali | PhD Candidate
> Applied Physics
> Northwestern University
> s-sajid-ali.github.io <http://s-sajid-ali.github.io>
> 
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