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Date: Tue, 2 Jul 2013 15:38:38 +0200
From: magnum <john.magnum@...hmail.com>
To: john-dev@...ts.openwall.com
Subject: Re: bug: GPU use in CPU-only formats
On 2 Jul, 2013, at 12:59 , Solar Designer <solar@...nwall.com> wrote:
> I am bringing this to john-dev.
>
> On Sun, Jun 30, 2013 at 07:23:59AM +0400, Solar Designer wrote:
>> On Sat, Jun 29, 2013 at 06:24:14PM +0530, Dhiru Kholia wrote:
>>> Maybe my format has some magical abilities which I am not aware of?
>>
>> I guess so. %-) There was some load on the NVIDIA GPU, and about 60 MB
>> of memory consumed on it.
>
> I am now seeing the same thing with e.g. Raw-SHA256-ng in an OpenCL
> build. Somehow it allocates 60+ MB on the NVIDIA GPU in bull. %-)
>
> magnum - I think there's a bug somewhere in bleeding, where OpenCL
> builds make some use of GPU even in formats that are not GPU-enabled.
> Weird. Can you look into this, please?
Strange. I'll have a look. I have noticed that my laptop switches from HD4000 to GT650M even when running non-GPU formats but I thought that was due to some fuzzy logic (with earlier drivers I think such switching was actually made mostly or solely from a whitelist).
magnum
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