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Date: Mon, 2 Apr 2012 20:33:26 +0400
From: Solar Designer <>
Subject: Re: JtR: GPU for slow hashes

On Mon, Apr 02, 2012 at 09:59:15PM +0530, Dhiru Kholia wrote:
> On Mon, Apr 2, 2012 at 9:47 PM, SAYANTAN DATTA <> wrote:
> > While running the benchmark I get the following error after a few seconds:
> > ../../../thread/semaphore.cpp:87: sem_wait() failed
> > aborted
> Are you using AMD APP SDK 2.6? This is a known issues with version
> 2.6. Downgrade to 2.5 and try again.

FWIW, as discussed in here before, downgrading did not help in my case,
but setting OS_TIMER to 0 did.

I think magnum has since set OS_TIMER to 0 in x86-64.h, but not in
x86-sse.h.  We need to change that to only set OS_TIMER to 0 when
building with OpenCL support with AMD SDK specifically (since OS_TIMER 1
is preferable when we can have it), but to do it from both header files.


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