No, sadly there’s no topology.conf in use. Thanks,
Daniel Healy On Thu, Jan 9, 2025 at 8:28 AM Steffen Grunewald < steffen.grunew...@aei.mpg.de> wrote: > On Thu, 2025-01-09 at 07:51:40 -0500, Slurm users wrote: > > Hello there and good morning from Baltimore. > > > > I have a small cluster with 100 nodes. When the cluster is completely > empty > > of all jobs, the first job gets allocated to node 41. In other clusters, > > the first job gets allocated to mode 01. If I specify node 01, the > > allocation works perfectly. I have my partition NodeName set as > > node[01-99], so having node41 used first is a surprise to me. We also > have > > many other partitions which start with node41, but the partition being > used > > for the allocation starts with node01. > > > > Does anyone know what would cause this? > > Just a wild guess, but do you have a topology.conf file that somehow makes > this node look most reasonable to use for a single-node job? > (Topology attempts to assign, or hold back, sections of your network to > maximize interconnect bandwidth for multi-node jobs. Your node41 might be > one - or the first one of a series - that would leave bigger chunks unused > for bigger tasks.) > > HTH, > Steffen > > -- > Steffen Grunewald, Cluster Administrator > Max Planck Institute for Gravitational Physics (Albert Einstein Institute) > Am Mühlenberg 1 * D-14476 Potsdam-Golm * Germany > ~~~ > Fon: +49-331-567 7274 > Mail: steffen.grunewald(at)aei.mpg.de > ~~~ >
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