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Date: Wed, 7 Nov 2012 17:43:52 +0100
From: Lukas Odzioba <>
Subject: Re: Split kernel for OpenCL WPA-PSK


2012/11/7 magnum <>:
> Lukas, all,
> Attached is a patch against Jumbo-7 (or latest git) that implements new split OpenCL kernels for WPA-PSK. Please test, and report results from devices other than Bull's.

Thank you for working on that.
I'll send test results withing few hours.

> For some reason it segfaults on the Tahiti (but not on AMDAPP/CPU). On all other devices I've tried it works fine. If we can get this straight we should implement similar changes to a bunch of other OpenCL formats that use PBKDF2-HMAC-SHA1.

On Tahiti it segfaults during selftest, testsuite or some real world cracking?

> These are massive changes to both host code and kernel. Some 15-20% boost is gained too btw, and device auto-tuning is implemented.

15-20% just for nvidia or for amd too?


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