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Message-ID: <10ca0a91087b07904ec2fe9927988d0b@smtp.hushmail.com>
Date: Mon, 21 Jul 2014 12:21:02 +0200
From: magnum <john.magnum@...hmail.com>
To: john-users@...ts.openwall.com
Subject: Re: Help Compiling John on ARM w/ MPI & CUDA
On 2014-07-20 22:48, Pyrex wrote:
> I'd like to get OpenMP working, I am parsing through the readme files
> but haven't seen much on how to do it. Could someone please share the
> method with me?
There's nothing to it. When you run configure, it will enable OpenMP if
possible.
$ ../run/john --test --form:descrypt
Will run 8 OpenMP threads
Benchmarking: descrypt, traditional crypt(3) [DES 128/128 AVX-16]...
(8xOMP) DONE
Many salts: 17195K c/s real, 2696K c/s virtual
Only one salt: 14712K c/s real, 2704K c/s virtual
The "Will run 8 threads" and "(8xOMP)" show that you are running OpenMP.
You can use environment variables to limit number of threads, eg.
$ OMP_NUM_THREADS=4 ../run/john --test --form:descrypt
Will run 4 OpenMP threads
Benchmarking: descrypt, traditional crypt(3) [DES 128/128 AVX-16]...
(4xOMP) DONE
Many salts: 14516K c/s real, 4043K c/s virtual
Only one salt: 14827K c/s real, 4297K c/s virtual
magnum
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