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Date: Thu, 22 Sep 2011 19:35:45 -0400
From: Erik Winkler <>
Subject: Re: OpenCL performance numbers on Radeon HD 5870

I was able to compile the code on OSX Lion.  As Crypt is not part of OSX, I only tested the PHPASS hash.

./john -test -format:PHPASSOPENCL
Benchmarking: PHPASSOPENCL [PORTABLE-MD5]... end read_kernel_source

OpenCL Device: ATI Radeon HD 5670
setup context
build kernel
end build program
Raw:	52306 c/s real, 1774K c/s virtual

On Sep 22, 2011, at 12:02 PM, Lukas Odzioba wrote:

> I uploaded newest version fixing some bugs and faster phpass.
> On phpass@...0 I've got ~300k c/s what is still slow comparing to
> gtx460 with ~245k c/s.
> I had a problem with this revision. Sha256crypt halts my computer
> during .cl compilation. I would apreciate if someone could confirm it.
> It happens only on AMD devices, not on nVidia's.
> Direct link to patch:
> Lukas

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