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Date: Mon, 25 Oct 2021 20:57:11 +0200
From: Matus UHLAR - fantomas <uhlar@...tomas.sk>
To: john-users@...ts.openwall.com
Subject: Re: GPU benchmarks?
>On Mon, Oct 25, 2021 at 07:19:04PM +0200, Matus UHLAR - fantomas wrote:
>> BTW, do LWS and GWS matter here? shopuld they be at least shown in the
>> output?
On 25.10.21 19:43, Solar Designer wrote:
>Yes, they matter, and they should probably be included.
>
>Ditto for GPU driver version and OpenCL backend version. For NVIDIA
>GPUs, you'd include things like these:
>
>Driver Version: 418.39 CUDA Version: 10.1
>
>as printed by nvidia-smi.
I have one nvidia card and laptop with intel and amd GPUs.
I guess these could be important:
% clinfo | grep -e 'Platform Version' -e 'Device Name' -e 'Driver Version' -e 'Max compute units' -e 'Max clock frequency'
Platform Version OpenCL 1.2 CUDA 11.2.162
Device Name GeForce GT 1030
Driver Version 460.91.03
Max compute units 3
Max clock frequency 1430MHz
>> so we could start with same hashes as CPU tables have..
>
>I think that choice is not ideal. We'd also need to add sha*-crypt to
>all tables, whereas our LM is in a poor state on CPU (doesn't scale to
>many threads, except with "--fork") and our bcrypt-opencl is in a poor
>state on NVIDIA GPUs.
how else are we supposed to see the progress if they are optimised? :)
> However, if you want to show JtR shortcomings
>along with CPU/GPU differences, then these are fine, they just should
>not be misinterpreted as indicating the CPUs and GPUs can only achieve
>roughly those speeds at these two hash types.
I put a note about this to the wiki:
https://openwall.info/wiki/john/benchmarks#GPU-benchmarks
--
Matus UHLAR - fantomas, uhlar@...tomas.sk ; http://www.fantomas.sk/
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