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Date: Mon, 3 Jun 2013 05:32:18 +0400
From: Solar Designer <solar@...nwall.com>
To: john-users@...ts.openwall.com
Subject: Re: Bleeding-jumbo extensions help. Ubuntu 12.4 Linux on Oracle VM
On Sun, Jun 02, 2013 at 09:25:32PM -0400, James Ross wrote:
> So reset the crack and run './john --fork=8 --format=bitcoin hash'?
First make sure that you actually have 8 logical CPUs in the VM - e.g.,
with "cat /proc/cpuinfo".
If you don't want to start over, OpenMP is a better choice than --fork.
You may then interrupt your non-OpenMP session and --restore it with an
OpenMP-enabled build.
--fork is usually more efficient than OpenMP, though. OpenMP is quite
sensitive to other load on the system, whereas --fork is not.
Alexander
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