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Message-ID: <f920a10b2fd573ada9c07cbf85c77868@smtp.hushmail.com>
Date: Thu, 03 May 2012 12:59:45 +0200
From: magnum <john.magnum@...hmail.com>
To: john-dev@...ts.openwall.com
Subject: Re: cryptsha512-opencl
Claudio,
On 05/02/2012 08:50 PM, Claudio André wrote:
>> cryptsha512-opencl currently in magnum-jumbo still fails tests on both
>> GPUs in the bull machine.
> It works on NVIDIA now.
Do you think you can get it working on AMD soon too? We might try to
wrap up a Jumbo release soon. Also (or at the same time but this is
lower prio) you might want to get rid of byte stores. The AMD will honor
this setting:
#ifdef cl_khr_byte_addressable_store
#pragma OPENCL EXTENSION cl_khr_byte_addressable_store : disable
#endif
This will make your format fail until you have replaced all byte pointer
writes to macros like the PUTCHAR one in rar (it's normally as simple as
that). Note that besides making your format work on more devices, this
will probably also speed things up.
BTW, that pragma disable *should* work on nvidia too but they just
silently ignore it.
magnum
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