@tsulej please open an isue on neanderthal's github page. also, what's your hardware? neanderthal version?

One question first. Is Atlas obligatory?

No, if you do not use BLAS computations on the host.

also, check your GPU drivers. Especially if you are using Nvidia, you'd need recent ones.

I have latest one (nvida geforce gtx960, neanderthal version 0.6.2, clojure 1.8, win10 home) , I'll try again and open an issue in case of problems