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Date: Wed, 25 Apr 2012 22:30:11 +0200
From: magnum <john.magnum@...hmail.com>
To: john-dev@...ts.openwall.com
Subject: Re: New RAR OpenCL kernel
On 04/25/2012 10:26 PM, magnum wrote:
> On 04/25/2012 02:38 PM, SAYANTAN DATTA wrote:
>> I tested your rar format on my 4890.Here's the result:
>>
>> Local worksize (LWS) 256, Global worksize (KPC) 256
>> Benchmarking: RAR3 (6 characters) [OpenCL]... DONE
>> Raw: 64.2 c/s real, 64.2 c/s virtual
>>
>> Is it okay to have KPC 256? Seems a bit low..
>
> I forgot that last question. No, I do not think 256 is too low. I can
> get max speed on GTX580 using any LWS >= 64.
Sorry I misread this. LWS 256 is OK but KPC at the same can't be good. I
wonder how it ended up like that.
Try explicitly saying KPC=0 for a benchmark output. Maybe also try
setting a lower LWS (and KPC=0) and see what happens.
magnum
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