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Date: Tue, 2 Jul 2013 01:22:44 +0200
From: magnum <john.magnum@...hmail.com>
To: john-users@...ts.openwall.com
Subject: Re: mscash2-opencl failing device tuning (was: use of undeclared identifier 'k')

On 30 Jun, 2013, at 19:23 , johnfoobar <johnfoobar@...mail.org> wrote:
> ./john --format:mscash2-opencl -t
> OpenCL platform 0: NVIDIA CUDA, 1 device(s).
> Device 0: Quadro 2000M
> OpenCL error (CL_OUT_OF_RESOURCES) in file (common_opencl_pbkdf2.c) at
> line (433) - (SYNC FAILED)


It looks to me the format's auto-tuning to device fails. Try using -t=0 instead of just -t for a really small workload (and thus poor speed). Does it work then? If it does, you can experiment with different values for local and global worksizes like this:

LWS=64 GWS=512 ../run/john -t -form:mscash2-opencl

If that too works, try doubling the GWS figure until you find the fastest value that works fine. Please report back.

magnum

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