127 lines
4.3 KiB
Nix
127 lines
4.3 KiB
Nix
{ config, pkgs, lib, ... }:
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let
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suspendProgram = pkgs.writeScript "suspend.sh" ''
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#!/usr/bin/env bash
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exec 1>>/var/log/power_save.log 2>>/var/log/power_save.log
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set -x
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export "PATH=/run/current-system/sw/bin:$PATH"
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echo "$(date) Suspend invoked $0 $*" >> /var/log/power_save.log
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hosts=$(scontrol show hostnames $1)
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for host in $hosts; do
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echo Shutting down host: $host
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ipmitool -I lanplus -H ''${host}-ipmi -P "" -U "" chassis power off
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done
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'';
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resumeProgram = pkgs.writeScript "resume.sh" ''
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#!/usr/bin/env bash
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exec 1>>/var/log/power_save.log 2>>/var/log/power_save.log
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set -x
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export "PATH=/run/current-system/sw/bin:$PATH"
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echo "$(date) Suspend invoked $0 $*" >> /var/log/power_save.log
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hosts=$(scontrol show hostnames $1)
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for host in $hosts; do
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echo Starting host: $host
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ipmitool -I lanplus -H ''${host}-ipmi -P "" -U "" chassis power on
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done
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'';
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in {
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systemd.services.slurmd.serviceConfig = {
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# Kill all processes in the control group on stop/restart. This will kill
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# all the jobs running, so ensure that we only upgrade when the nodes are
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# not in use. See:
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# https://github.com/NixOS/nixpkgs/commit/ae93ed0f0d4e7be0a286d1fca86446318c0c6ffb
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# https://bugs.schedmd.com/show_bug.cgi?id=2095#c24
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KillMode = lib.mkForce "control-group";
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};
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services.slurm = {
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client.enable = true;
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controlMachine = "hut";
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clusterName = "jungle";
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nodeName = [
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"owl[1,2] Sockets=2 CoresPerSocket=14 ThreadsPerCore=2 Feature=owl"
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"hut Sockets=2 CoresPerSocket=14 ThreadsPerCore=2"
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];
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partitionName = [
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"owl Nodes=owl[1-2] Default=YES DefaultTime=01:00:00 MaxTime=INFINITE State=UP"
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];
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# See slurm.conf(5) for more details about these options.
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extraConfig = ''
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# Use PMIx for MPI by default. It works okay with MPICH and OpenMPI, but
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# not with Intel MPI. For that use the compatibility shim libpmi.so
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# setting I_MPI_PMI_LIBRARY=$pmix/lib/libpmi.so while maintaining the PMIx
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# library in SLURM (--mpi=pmix). See more details here:
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# https://pm.bsc.es/gitlab/rarias/jungle/-/issues/16
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MpiDefault=pmix
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# When a node reboots return that node to the slurm queue as soon as it
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# becomes operative again.
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ReturnToService=2
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# Track all processes by using a cgroup
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ProctrackType=proctrack/cgroup
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# Enable task/affinity to allow the jobs to run in a specified subset of
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# the resources. Use the task/cgroup plugin to enable process containment.
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TaskPlugin=task/affinity,task/cgroup
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# Power off unused nodes until they are requested
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SuspendProgram=${suspendProgram}
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SuspendTimeout=60
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ResumeProgram=${resumeProgram}
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ResumeTimeout=300
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SuspendExcNodes=hut
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# Turn the nodes off after 1 hour of inactivity
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SuspendTime=3600
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# Reduce port range so we can allow only this range in the firewall
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SrunPortRange=60000-61000
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# Use cores as consumable resources. In SLURM terms, a core may have
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# multiple hardware threads (or CPUs).
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SelectType=select/cons_tres
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# Ignore memory constraints and only use unused cores to share a node with
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# other jobs.
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SelectTypeParameters=CR_Core
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# Required for pam_slurm_adopt, see https://slurm.schedmd.com/pam_slurm_adopt.html
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# This sets up the "extern" step into which ssh-launched processes will be
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# adopted. Alloc runs the prolog at job allocation (salloc) rather than
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# when a task runs (srun) so we can ssh early.
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PrologFlags=Alloc,Contain,X11
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# LaunchParameters=ulimit_pam_adopt will set RLIMIT_RSS in processes
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# adopted by the external step, similar to tasks running in regular steps
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# LaunchParameters=ulimit_pam_adopt
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SlurmdDebug=debug5
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#DebugFlags=Protocol,Cgroup
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'';
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extraCgroupConfig = ''
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CgroupPlugin=cgroup/v2
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#ConstrainCores=yes
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'';
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};
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# Place the slurm config in /etc as this will be required by PAM
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environment.etc.slurm.source = config.services.slurm.etcSlurm;
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age.secrets.mungeKey = {
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file = ../../secrets/munge-key.age;
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owner = "munge";
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group = "munge";
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};
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services.munge = {
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enable = true;
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password = config.age.secrets.mungeKey.path;
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};
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}
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