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Date: Sun, 04 Mar 2012 13:03:35 +0100
From: Samuele Giovanni Tonon <>
Subject: Re: CUDA & OpenCL status

On 03/04/12 05:37, Solar Designer wrote:
> On Sun, Mar 04, 2012 at 02:47:03AM +0100, magnum wrote:
>> On 03/04/2012 01:26 AM, Solar Designer wrote:
>>> Benchmarking: PHPASS-OPENCL [PORTABLE-MD5]... ../../../thread/semaphore.cpp:87: sem_wait() failed
>>> Aborted (core dumped)
>> This is a very common problem. Try using APP AMD 2.5 instead and I think
>> you'll get rid of it.
> Turns out it's some poor interaction between John's and a library's use
> of timers.  I first saw hints to this with strace and ltrace, then
> re-compiled with OS_TIMER 0 in x86-64.h, and the problem went away:
this is wonderful, could you please post opencl benchmark with nvidia
and AMD cards ?


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