# Configure # of cores available for each user

**URL:** <https://community.openpbs.org/t/configure-of-cores-available-for-each-user/3481>\
**Category:** Users/Site Administrators\
**Created:** [March 28, 2023, 6:20am UTC](https://community.openpbs.org/t/configure-of-cores-available-for-each-user/3481 "2023-03-28T06:20:37Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Kai77](https://avatars.discourse-cdn.com/v4/letter/k/67e7ee/32.png) [@Kai77](https://community.openpbs.org/u/Kai77)\
**Post date:** [March 28, 2023, 6:20am UTC](https://community.openpbs.org/t/configure-of-cores-available-for-each-user/3481/1 "2023-03-28T06:20:38Z")

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Hello, I have one question. In OpenPBS, is it possible to configure the maximum number of cores available for each user? For example,

As default, all users can use 500 cores at maximum.  
User A can use 1,000 cores at maximum.  
User B can use 700 cores at maximum.  
:

Thanks.

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**Author:** ![adarsh](https://avatars.discourse-cdn.com/v4/letter/a/f07891/32.png) [@adarsh](https://community.openpbs.org/u/adarsh)\
**Post date:** [March 28, 2023, 7:34am UTC](https://community.openpbs.org/t/configure-of-cores-available-for-each-user/3481/2 "2023-03-28T07:34:59Z")

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Please check the documentation for server limits and queue limits:

> qmgr -c “s s max\_run\_res.ncpus=‘[u:PBS\_GENERIC=500],[u:userA=1000],[u:userB=700]’”

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**Author:** ![Kai77](https://avatars.discourse-cdn.com/v4/letter/k/67e7ee/32.png) [@Kai77](https://community.openpbs.org/u/Kai77)\
**Post date:** [March 29, 2023, 12:10am UTC](https://community.openpbs.org/t/configure-of-cores-available-for-each-user/3481/3 "2023-03-29T00:10:54Z")

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Hello Adarsh, thank you very much for the quick reply and useful information. It is really helpful. I will check the docs again.

Regards