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Re: [HTCondor-users] Jobs using large memory but profiler says that jobs are fine?



Dear Experts,

I am still stuck on this issue and unable to send jobs to more than a handful of machines. Is there anything else that can be done?

Cheers.

On Wed, Mar 6, 2024 at 11:29âAM Angel Campoverde <angelfcampoverde@xxxxxxxxx> wrote:
Dear Ben,

I am running on centos7 machines, I can see:

el7.x86_64

From inside the job. The program does write files, but only about 200-300 Mb, It definitely does not look like I am using more than a few hundred megabytes of memory.

Cheers.

On Tue, Mar 5, 2024 at 5:22âPM Ben Jones <ben.dylan.jones@xxxxxxx> wrote:
Do you know if youâre running on an el9 machine or similar? I think that on cgroup v2 machines the memory reporting currently reports file cache. Are you writing a large file?Â

On 5 Mar 2024, at 17:08, Angel Campoverde <angelfcampoverde@xxxxxxxxx> wrote:

ï
Dear Condor experts,

I am running a job that seems to be going beyond 8Gb in memory usage. However when I run it with memray (a memory profiler for python projects) I see that my memory usage is only 107Mb, as you can see in the screenshot below:

<image.png>

I have contacted the python mailing list:


and despite I try to turn off multithreading, I still get this high memory usage. Why is this happening and how should I fix it? I cannot use 16Gb of memory in my jobs, there are very few machines that have that much memory.

Cheers.
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