# Xeon Phi Knights Landing
**URL:** https://discourse.julialang.org/t/xeon-phi-knights-landing/2203
**Category:** Internals & Design
**Created:** [February 21, 2017, 4:42am UTC](https://discourse.julialang.org/t/xeon-phi-knights-landing/2203 "2017-02-21T04:42:33Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@hsseung](https://discourse.julialang.org/u/hsseung)
#### Post date: [February 21, 2017, 4:42am UTC](https://discourse.julialang.org/t/xeon-phi-knights-landing/2203/1 "2017-02-21T04:42:33Z")
I’ve got a new Xeon Phi Knights Landing machine, and I tried out the stock Julia 0.5 binary. Matrix multiplication is painfully slow (\>100x). Recompilation with MKL 2017 failed. Before I go any further, if anyone out there has a KNL machine could you share your experiences here? I’d be grateful.
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### Author:  [@Keno](https://discourse.julialang.org/u/Keno)
#### Post date: [February 21, 2017, 4:53am UTC](https://discourse.julialang.org/t/xeon-phi-knights-landing/2203/2 "2017-02-21T04:53:36Z")
The [Celeste](https://github.com/jeff-regier/Celeste.jl) project frequently runs julia on KNL. As you might imagine it’s a little tricky as all the software is still playing catch-up. In any case, you’ll want to use a recent version of julia 0.6 and recompile it with an equally recent version of LLVM. The instructions in [https://github.com/jeff-regier/Celeste.jl/issues/391](https://github.com/jeff-regier/Celeste.jl/issues/391) might help
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### Author:  [@hsseung](https://discourse.julialang.org/u/hsseung)
#### Post date: [February 21, 2017, 5:55am UTC](https://discourse.julialang.org/t/xeon-phi-knights-landing/2203/3 "2017-02-21T05:55:49Z")
Thanks!
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### Author:  [@felix](https://discourse.julialang.org/u/felix)
#### Post date: [February 21, 2017, 7:56am UTC](https://discourse.julialang.org/t/xeon-phi-knights-landing/2203/4 "2017-02-21T07:56:58Z")
[… sounds like a nice machine you got there](https://en.wikipedia.org/wiki/Xeon_Phi) 😁