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Date: Fri, 7 Aug 2015 12:47:05 +0200
From: Frank Dittrich <frank.dittrich@...lbox.org>
To: john-users@...ts.openwall.com
Subject: Re: Benchmark result

On 08/07/2015 11:45 AM, Solar Designer wrote:
> On Fri, Aug 07, 2015 at 11:38:00AM +0200, magnum wrote:
>> On 2015-08-07 09:36, Solar Designer wrote:
>>> On Fri, Aug 07, 2015 at 01:53:14AM +0200, Viktor Gazdag wrote:
>>>> ./john --fork=8 --device=0,1,2,3,4,5,6,7 --format=Raw-SHA256-opencl
>>>
>>> This is a total waste of GPUs.  Don't do it.  For fast hashes (anything
>>> starting with raw-*, some others), we generally don't have efficient
>>> code on GPUs, with some recent exceptions (Sayantan has implemented mask
>>> mode on GPU recently, for a handful of fast hash types, but not for all).
>>
>> It's not a waste: Claudio implemented GPU-side mask for his raw formats 
>> long ago!
> 
> Oh, I must have missed that.  We got to have a list of formats
> supporting GPU mask mode somewhere,

If it isn't already reported, ./john --list=format-all-details should
report it.

Frank

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