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|
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 <stdio.h>
#include <stdlib.h>
#include <mpi.h>
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")
'';
})
|
