Openwall GNU/*/Linux - a small security-enhanced Linux distro for servers
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Sat, 3 Mar 2018 13:11:18 +0100
From: Solar Designer <solar@...nwall.com>
To: john-users@...ts.openwall.com
Subject: Re: Getting full performance out of multiple GPU's

On Fri, Mar 02, 2018 at 10:57:09PM +0100, Piotr Dobrogost wrote:
> Below are some exemplary values of utilization when running
> --format=gpg-opencl on 8 gpus:

GPU time utilization should be near 100%.  GPU memory utilization may
vary depending on actual needs - there's no universally correct/expected
level of GPU memory utilization.

> utilization.gpu [%], utilization.memory [%]
> 13 %, 6 %
> 11 %, 4 %
> 13 %, 6 %
> 10 %, 4 %
> 75 %, 48 %
> 7 %, 3 %
> 13 %, 6 %
> 7 %, 3 %

The GPU time utilization figures here are indeed very wrong, but it's
unrealistic to troubleshoot this without you posting the exact JtR
command line you used and the output from JtR (just exclude the cracked
passwords, if any).

Alexander

Powered by blists - more mailing lists

Your e-mail address:

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.