# How to use oneDNN?

**URL:** <https://community.konduit.ai/t/how-to-use-onednn/1018>\
**Category:** DL4J\
**Created:** [November 30, 2020, 2:04pm UTC](https://community.konduit.ai/t/how-to-use-onednn/1018 "2020-11-30T14:04:04Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![SidneyLann](https://yyz1.discourse-cdn.com/flex035/user_avatar/community.konduit.ai/sidneylann/32/367_2.png) [@SidneyLann](https://community.konduit.ai/u/SidneyLann)\
**Post date:** [November 30, 2020, 2:04pm UTC](https://community.konduit.ai/t/how-to-use-onednn/1018/1 "2020-11-30T14:04:04Z")

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-Dorg.bytedeco.openblas.load=mkl\_rt

I had used such argument to use mkl, now I installed oneDNN, how to pass argument to use oneDNN?

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**Author:** ![SidneyLann](https://yyz1.discourse-cdn.com/flex035/user_avatar/community.konduit.ai/sidneylann/32/367_2.png) [@SidneyLann](https://community.konduit.ai/u/SidneyLann)\
**Post date:** [December 1, 2020, 1:52am UTC](https://community.konduit.ai/t/how-to-use-onednn/1018/2 "2020-12-01T01:52:05Z")

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avx512 is not used and no CPU Feature Check Warning, how to let DL4J to use avx512?

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<div class="post-metadata">

**Author:** ![SidneyLann](https://yyz1.discourse-cdn.com/flex035/user_avatar/community.konduit.ai/sidneylann/32/367_2.png) [@SidneyLann](https://community.konduit.ai/u/SidneyLann)\
**Post date:** [December 1, 2020, 11:36am UTC](https://community.konduit.ai/t/how-to-use-onednn/1018/3 "2020-12-01T11:36:51Z")

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Solved problem by installing l\_mkl\_2020.4.304.tgz