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Date: Mon, 3 Jul 2017 12:00:52 +0200
From: magnum <john.magnum@...hmail.com>
To: john-users@...ts.openwall.com
Subject: Re: bcrypt-opencl on multiple GPUs?
On 2017-07-03 07:56, Royce Williams wrote:
> I tried for the first time to use john bcrypt-opencl on multiple GPUs
> today, like so:
>
> $ ./john --format=bcrypt-opencl --device=gpu --fork=6 -inc=lower
> -min-len=8 -max-len=8 -mask='?w?l?l?l?l' --progress-every=300
> --max-run-time=3660 single-bf.hash
>
> ... but only one GPU is providing status output:
>
> Using default input encoding: UTF-8
> Loaded 1 password hash (bcrypt-opencl [Blowfish OpenCL])
> Node numbers 1-6 of 6 (fork)
> Device 3: GeForce GTX 1080
> Device 0: GeForce GTX 1080
> Device 5: GeForce GTX 1080
> Device 4: GeForce GTX 1080
> Device 1: GeForce GTX 1080
> Device 2: GeForce GTX 1080
> [Build log elided]
> Press 'q' or Ctrl-C to abort, almost any other key for status
> 1 0g 0:00:01:16 0.00% (ETA: 2037-12-19 05:32) 0g/s 53.38p/s 53.38c/s
> 53.38C/s GPU:34C lilluela..lilleoya
> 1 0g 0:00:02:33 0g/s 53.38p/s 53.38c/s 53.38C/s GPU:35C lillioya..lillbnpa
> 1 0g 0:00:05:06 0g/s 53.38p/s 53.38c/s 53.38C/s GPU:35C lillnlxa..lillgsne
> 1 0g 0:00:06:23 0g/s 53.38p/s 53.38c/s 53.38C/s GPU:36C lillpsne..lillrmce
> 1 0g 0:00:10:13 0g/s 53.39p/s 53.39c/s 53.39C/s GPU:37C lilltywe..lillfhii
> 1 0g 0:00:11:30 0g/s 53.39p/s 53.39c/s 53.39C/s GPU:37C lillwhii..lillmbti
> Waiting for 5 children to terminate
> Session aborted
Strange. Do you have the same problem when pressing a key? What if you
send some or all of the children a SIGUSR1? Eg. 'pkill -usr1 john'.
magnum
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