ps -eaf --forest is your friend with Slurm
On Mon, Feb 10, 2025, 12:08 PM Michał Kadlof via slurm-users < slurm-users@lists.schedmd.com> wrote:
I observed similar symptoms when we had issues with the shared Lustre file system. When the file system couldn't complete an I/O operation, the process in Slurm remained in the CG state until the file system became responsive again. An additional symptom was that the blocking process was stuck in the D state. On 10/02/2025 09:28, Ricardo Román-Brenes via slurm-users wrote:
Hello everyone.
I have a cluster composed of 16 nodes, with 4 of them having GPUs with no particular configuration to manage them. The filesystem is gluster, authentication via slapd/munge.
My problem is that very frequently, let's say at least a job daily, gets stuck in CG. I have no idea why this happens. Manually killing the slurmstep process releases the node but this is in no way a manageable solution. Has anyone experienced this (and fixed it?)
Thank you.
-Ricardo
-- best regards | pozdrawiam serdecznie *Michał Kadlof* Head of the high performance computing center Kierownik ośrodka obliczeniowego HPC EdenN cluster administrator Administrator klastra obliczeniowego EdenN Structural and Functional Genomics Laboratory Laboratorium Genomiki Strukturalnej i Funkcjonalnej Faculty of Mathematics and Computer Science Wydział Matematyki i Nauk Informacyjnych Warsaw University of Technology Politechnika Warszawska
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