Hey Chris, No code to test -- mpi works just not with slurm to call it.
Thanks for your help, I think I'm going to be recompiling from source. ~Avery Grieve They/Them/Theirs please! University of Michigan On Thu, Dec 10, 2020 at 12:58 PM Christopher J Cawley <ccawl...@gmu.edu> wrote: > Hi Avery - > > No worries, > > I took all of the defaults for software, etc. > Jetson's are locked into ubuntu 18.04.5, > slurm 19.05.7, etc. > > Do you have code to test? I'm more of a python person. > > Thanks > Chris > > > *Christopher J. Cawley* > > *Systems Engineer/Linux Engineer, Information Technology Services* > > *223 Aquia Building, Ffx,** MSN**: 1B5* > > *George Mason University* > > *Phone:** (703) 993-6397* > > *Email:* *ccawl...@gmu.edu* > > > ------------------------------ > *From:* slurm-users <slurm-users-boun...@lists.schedmd.com> on behalf of > Avery Grieve <agri...@umich.edu> > *Sent:* Thursday, December 10, 2020 11:38 AM > *To:* Slurm User Community List <slurm-users@lists.schedmd.com> > *Subject:* Re: [slurm-users] slurm-wlm package OpenMPI PMIx implementation > > Oop, sorry I meant to also include the following: > > # srun --mpi=list > srun: MPI types are... > srun: none > srun: pmi2 > srun: openmpi > > running srun with --mpi=openmpi gives the same errors as with > MpiDefault=none. > > ~Avery Grieve > They/Them/Theirs please! > University of Michigan > > > On Thu, Dec 10, 2020 at 11:34 AM Avery Grieve <agri...@umich.edu> wrote: > > Hi Chris, > > Thank you for the offer. Here's some quick information on my system: > > All nodes on Debian 10 (armbian buster converted to DietPi v6.33.3). > sinfo --version: slurm-wlm 18.08.5-2 > > With MpiDefault=pmix I get the following srun errors: > srun: error: Couldn't find the specified plugin name for mpi/pmix looking > at all files > srun: error: cannot find mpi plugin for mpi/pmix > srun: error: cannot create mpi context for mpi/pmix > srun: error: invalid MPI type 'pmix', --mpi=list for acceptable types > > With MpiDefault=none > I get OpenMPI yelling at me and giving me two options, only one relevant > to the version of Slurm I'm running: > version 16.05 or later: you can use SLURM's PMIx support. This > requires that you configure and build SLURM --with-pmix. > > However, as I stated, I'm using the slurm-wlm package which seems to not > include the pmix functionality by default. > > The other option provided: > Versions earlier than 16.05: you must use either SLURM's PMI-1 or > PMI-2 support. SLURM builds PMI-1 by default, or you can manually > install PMI-2. You must then build Open MPI using --with-pmi pointing > to the SLURM PMI library location. > > Similar issue, not building slurm from source doesn't include the PMI > library. I've installed some develop level packages, including the > libpmi2-0 package > <https://secure-web.cisco.com/10RRF9yf9i-7-zx463otbTEYwHQ8PfAu0MWZDt-sp7LOW0FINJnwC3j6h5vCPjyEOcW_d4xkUjeu3yTU6e1aZhW7bYufUDkpZVQ_-IyrDmd5Zl9_4fUvMFvlohRkxN3_18FcN6caXv3CyLnSbizh35atzHBeuC4aREJBiZNIfqjJfrO5LI5pK6coWiyFVqweLpTWOQUWbdjzpnAG7whBZiDXOyp20-eAgY5v3ChNlgtjLNr_9d-OV97ux4pQyrfVyOZ2yTcVNF-THuyFtghkAO6wbbfRVQ9bRhzVsADarrzAyye3nTdVUQeehuf2hANuF7JLIXPuBmV-cAwMpZfuoC6PYr_FI0PoBsPUDaBCrFbagrJzfPr3ufkZsVxor3fyBaY8Vcphc-CfnpwfraZSpFHI8BC4Xq0l475bH5OSBCoQAFV8aE_hF-rycPo-gDRkmSqqHnKTUMuyHb5G46NQ7NQ/https%3A%2F%2Fpackages.debian.org%2Fbuster%2Flibpmi2-0> > which didn't seem to actually install anything useful as far as I can tell > using the "find" command. > > It's sort of looking like I should be looking at building slurm from > source again, I guess. > > Thanks, > > ~Avery Grieve > They/Them/Theirs please! > University of Michigan > > > On Thu, Dec 10, 2020 at 11:16 AM Christopher J Cawley <ccawl...@gmu.edu> > wrote: > > I have a 7 node jetson nano cluster running at home. > > Send me what you want me to take a look at . If it's not > a big deal, then I can let you know. > > Ubuntu 18 / slurm <some version from rpm> > > Thanks > Chris > > > *Christopher J. Cawley* > > *Systems Engineer/Linux Engineer, Information Technology Services* > > *223 Aquia Building, Ffx,** MSN**: 1B5* > > *George Mason University* > > *Phone:** (703) 993-6397* > > *Email:* *ccawl...@gmu.edu* > > > ------------------------------ > *From:* slurm-users <slurm-users-boun...@lists.schedmd.com> on behalf of > Avery Grieve <agri...@umich.edu> > *Sent:* Thursday, December 10, 2020 10:51 AM > *To:* slurm-users@lists.schedmd.com <slurm-users@lists.schedmd.com> > *Subject:* [slurm-users] slurm-wlm package OpenMPI PMIx implementation > > Hi Forum, > > I've been putting together an ARM cluster for fun/learning and I've been a > bit lost about how to get OpenMPI and slurm to behave together. > > I have installed the slurm-wlm package > <https://secure-web.cisco.com/14EwNb3UZYABzVqRN7IxszUw4L04o_2Bv7wm3a5vivtuqZhDuY3UrhulGE47J31qdoC16rhtMefWeyLXhK10TMim7oOCehTuBJR_47pTBDKcO_xYDX3yqOG1yzamsO31hXo3HS9tSUpOssM40vTLwy4Mxfggu2Qu_yXjJqtLE43mV2CrECvinY7hMt_cRMzi4b8xrKZXqngR31DMmyA9DzimeyLsN7nwxh6kJRMhcg2MjHlCOhu356VVZrErEM9ZafOD66sDUMluigARg1icclZaJOLhXE-7PlFRtAdk2dhXLEvRqSL3SUKrVeBy01MCmSi7sH8bkIijrujncTBU-DfWxY_JOwqhhsJAyXl0XJgjoOiGWHKcLPRRvrCbn_SGHGSw2Ogq3aC4sJLY1tBLwpgvXcOxFoURgb6y6WfJJg04H9ewyQ-Azr7kA_en7DIk_4KOux310uOWzo7XrHTxnLg/https%3A%2F%2Fpackages.debian.org%2Fbuster%2Fslurm-wlm>from > the Debian apt search and compiled OpenMPI from source on my compute nodes. > OpenMPI has been compiled with the option --with-slurm and the configure > time log indicates openmpi has pmix v3 built in. I thought that would be > enough for slurm and calling a job with "srun -n 4 -N1 executable" (with > slurm.conf having MpiDefault=pmix_v3) would be enough. > > Not the case, unfortunately as slurm doesn't have any idea what pmix_v3 > means without being compiled against it I guess. I have also attempted to > compile openmpi from source with the --with-pmi option but the slurm-wlm > package doesn't install any of the libraries/headers (pmi.h pmi2.h pmix.h > etc). Neither does any of the slurm-llnl develop packages, so I'm at a loss > of what to do here. > > A few notes: OpenMPI is working across my compute nodes. I'm able to ssh > to my compute node and start a job manually with mpirun that executes > successfully across the nodes. My slurmctld and slurmd daemons work for > single thread resource allocation (and presumably OpenMP multithreading, > though I haven't tested this). > > Beyond compiling slurm from source (assuming this installs the pmi headers > that I can use to build openmpi), which I have tried with no luck on my > devices, is there a way to get slurm and openmpi to behave together using > the precompiled package slurm-wlm? > > Thank you, > > ~Avery Grieve > They/Them/Theirs please! > University of Michigan > >
