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Date: Wed, 28 Mar 2012 04:50:00 +0200
From: Lukas Odzioba <lukas.odzioba@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: CUDA & OpenCL status
2012/3/27 Solar Designer <solar@...nwall.com>:
> BTW, we need to document this somewhere - mention that for best
> performance the arch and/or BLOCKS may need to be adjusted. Maybe we
> also need to include a way to pick these by graphics card name (for
> those we've tested or have specific expectations about) or/and have them
> auto-tuned.
There is short note about it in doc/README-CUDA. Having cards list
with best settings would be ok, but only for "stable" formats like
phpass, so results should not expire. Auto tuning similar to those in
OpenCL is good choice.
> Do you know how hashcat handles this? Maybe it has different kernels
> pre-built for different cards?
Something close I think, but I'm not sure.
Lukas
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