# Running actors on different numa

**URL:** <https://discuss.ray.io/t/running-actors-on-different-numa/4362>\
**Category:** Ray Core\
**Created:** [December 6, 2021, 11:16am UTC](https://discuss.ray.io/t/running-actors-on-different-numa/4362 "2021-12-06T11:16:51Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![shiranbi](https://avatars.discourse-cdn.com/v4/letter/s/5daacb/32.png) [@shiranbi](https://discuss.ray.io/u/shiranbi)\
**Post date:** [December 6, 2021, 11:16am UTC](https://discuss.ray.io/t/running-actors-on-different-numa/4362/1 "2021-12-06T11:16:51Z")

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Hello  
I would like to have more than one actor on a specific node  
Where each actor will run on a specific numa  
I know how to set numa as docker run parameter or by running the process with numactl but am not aware to use environment variable to set on which numa the process will run, which is the only way I know to define specifics for a worker.  
Does anyone know how to do it with ray?  
Thanks

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<div class="post-metadata">

**Author:** ![Chen\_Shen](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.ray.io/chen_shen/32/1486_2.png) [@Chen\_Shen](https://discuss.ray.io/u/Chen_Shen)\
**Post date:** [December 7, 2021, 6:14pm UTC](https://discuss.ray.io/t/running-actors-on-different-numa/4362/2 "2021-12-07T18:14:33Z")

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hi @shiranbi  
hmm unfortunately I’m not aware of easy ways to config it in Ray.