import ./make-test-python.nix ({ lib, pkgs, ... }: let slurmconfig = { services.slurm = { controlMachine = "control"; nodeName = [ "node[1-3] CPUs=1 State=UNKNOWN" ]; partitionName = [ "debug Nodes=node[1-3] Default=YES MaxTime=INFINITE State=UP" ]; extraConfig = '' AccountingStorageHost=dbd AccountingStorageType=accounting_storage/slurmdbd ''; }; environment.systemPackages = [ mpitest ]; networking.firewall.enable = false; systemd.tmpfiles.rules = [ "f /etc/munge/munge.key 0400 munge munge - mungeverryweakkeybuteasytointegratoinatest" ]; }; mpitest = let mpitestC = pkgs.writeText "mpitest.c" '' #include #include #include int main (int argc, char *argv[]) { int rank, size, length; char name[512]; MPI_Init (&argc, &argv); MPI_Comm_rank (MPI_COMM_WORLD, &rank); MPI_Comm_size (MPI_COMM_WORLD, &size); MPI_Get_processor_name (name, &length); if ( rank == 0 ) printf("size=%d\n", size); printf ("%s: hello world from process %d of %d\n", name, rank, size); MPI_Finalize (); return EXIT_SUCCESS; } ''; in pkgs.runCommand "mpitest" {} '' mkdir -p $out/bin ${lib.getDev pkgs.mpi}/bin/mpicc ${mpitestC} -o $out/bin/mpitest ''; in { name = "slurm"; meta.maintainers = [ lib.maintainers.markuskowa ]; nodes = let computeNode = { ...}: { imports = [ slurmconfig ]; # TODO slurmd port and slurmctld port should be configurations and # automatically allowed by the firewall. services.slurm = { client.enable = true; }; }; in { control = { ...}: { imports = [ slurmconfig ]; services.slurm = { server.enable = true; }; }; submit = { ...}: { imports = [ slurmconfig ]; services.slurm = { enableStools = true; }; }; dbd = { pkgs, ... } : let passFile = pkgs.writeText "dbdpassword" "password123"; in { networking.firewall.enable = false; systemd.tmpfiles.rules = [ "f /etc/munge/munge.key 0400 munge munge - mungeverryweakkeybuteasytointegratoinatest" ]; services.slurm.dbdserver = { enable = true; storagePassFile = "${passFile}"; }; services.mysql = { enable = true; package = pkgs.mariadb; initialScript = pkgs.writeText "mysql-init.sql" '' CREATE USER 'slurm'@'localhost' IDENTIFIED BY 'password123'; GRANT ALL PRIVILEGES ON slurm_acct_db.* TO 'slurm'@'localhost'; ''; ensureDatabases = [ "slurm_acct_db" ]; ensureUsers = [{ ensurePermissions = { "slurm_acct_db.*" = "ALL PRIVILEGES"; }; name = "slurm"; }]; settings.mysqld = { # recommendations from: https://slurm.schedmd.com/accounting.html#mysql-configuration innodb_buffer_pool_size="1024M"; innodb_log_file_size="64M"; innodb_lock_wait_timeout=900; }; }; }; node1 = computeNode; node2 = computeNode; node3 = computeNode; }; testScript = '' start_all() # Make sure DBD is up after DB initialzation with subtest("can_start_slurmdbd"): dbd.succeed("systemctl restart slurmdbd") dbd.wait_for_unit("slurmdbd.service") dbd.wait_for_open_port(6819) # there needs to be an entry for the current # cluster in the database before slurmctld is restarted with subtest("add_account"): control.succeed("sacctmgr -i add cluster default") # check for cluster entry control.succeed("sacctmgr list cluster | awk '{ print $1 }' | grep default") with subtest("can_start_slurmctld"): control.succeed("systemctl restart slurmctld") control.wait_for_unit("slurmctld.service") with subtest("can_start_slurmd"): for node in [node1, node2, node3]: node.succeed("systemctl restart slurmd.service") node.wait_for_unit("slurmd") # Test that the cluster works and can distribute jobs; with subtest("run_distributed_command"): # Run `hostname` on 3 nodes of the partition (so on all the 3 nodes). # The output must contain the 3 different names submit.succeed("srun -N 3 hostname | sort | uniq | wc -l | xargs test 3 -eq") with subtest("check_slurm_dbd"): # find the srun job from above in the database control.succeed("sleep 5") control.succeed("sacct | grep hostname") with subtest("run_PMIx_mpitest"): submit.succeed("srun -N 3 --mpi=pmix mpitest | grep size=3") ''; })