John Hearns wrote:
2008/11/19 Ray Muno <m...@aem.umn.edu>
Thought I would revisit this one.
We are still having issues with this. It is not clear to me what is leaving
the user files behind in /dev/shm.
This is not something users are doing directly, they are just compiling
their code directly with mpif90 (from OpenMPI), using various compilers.
Compilers in use are PGI, Intel, SunStudio and Pathscale.
It looks like every job run leaves something behind in /dev/shm and it
slowly fills up. We are just clearing these out at this point.
Could you not run ipcs with the -p flag every few minutes and try to figure
out what the processes are which are leaving these?
(by that I mean catch them when they are live, and the creating process is
still on the system)
OK, what should I be seeing when I run "ipcs -p"?
I have a set of nodes that has a user job running on it. It wrote a file
in /dev/shm when it started. The job is still running.
I see....
# ipcs -p
------ Shared Memory Creator/Last-op --------
shmid owner cpid lpid
------ Message Queues PIDs --------
msqid owner lspid lrpid
--
Ray Muno
