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Date: Sun, 2 Jul 2017 21:56:57 -0800
From: Royce Williams <royce@...ho.org>
To: john-users@...ts.openwall.com
Subject: bcrypt-opencl on multiple GPUs?
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
Royce
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