Hi
I have noticed that an interactive job via salloc doesn't care about the
number of cores that I have limited in the sacctmgr. The script is:
#!/bin/bash
#SBATCH --nodes=1
#SBATCH --cores=16
#SBATCH --mem=8G
#SBATCH --partition=QEMU
#SBATCH --account=q20_8
qemu-system-x86_64 -m 4096 -smp cores=16 -hda win7_x64_snap.img -boot c
-usbdevice tablet -enable-kvm -device e1000,netdev=host_files -netdev
user,net=
10.0.2.0/24,id=host_files,restrict=off,smb=/home/mahmood,smbserver=10.0.2.4
The user limits are
# sacctmgr list association format=account,user,partition,grptres,maxwall |
grep mahmood
local mahmood
q20_8 mahmood qemu cpu=20,mem=8G 30-00:00:00
Since the CPU limit is 20, I expect to run only interactive job since the
second job adds another 20 cores which is beyond the limit. This is a
series of commands that I run to launch the guest.
Terminal 1:
$ salloc --spankx11 ./run_qemu.sh
....
Terminal 2:
$ salloc --spankx11 ./run_qemu.sh
....
Terminal 3:
$ squeue
JOBID PARTITION NAME USER ST TIME NODES
NODELIST(REASON)
150 CLUSTER run_qemu mahmood R 0:26 1
compute-0-2
149 CLUSTER run_qemu mahmood R 1:15 1
compute-0-2
A picture of the guest windows are shown in
https://pasteboard.co/HTHnfeO.png
As you can see the second guest encounters a problem because both are
reading/writing to one image file.
Any idea?
Regards,
Mahmood
