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Date: Sun, 14 Jul 2013 23:13:20 -0700
From: Jeremi Gosney <epixoip@...dshell.nl>
To: john-dev@...ts.openwall.com
Subject: Re: AMD on Linux
On 7/14/2013 11:05 PM, marcus.desto wrote:
> Hi,
>
> I am running a AMD Radeon GPU (Cypress) on Linux with installed AMD
> SDK for OpenCL (latest version).
> Now, when I am not logged in via GDM (when main X server is not
> running), there is no AMD GPU available, so all the computation will
> be done by CPU. When I am logged in via GDM (the main x server is
> running), the GPUs are available. So, Using SSH on the AMD GPU host is
> only possible, when someone is logged in into the system.
> Is there a possibility to run opencl stuff without the xserver running?
>
> Thanks,
> Marcus
Xorg needs to be running & you need xauthority. So you can have GDM
auto-login to your user, and then run ''export DISPLAY=:0'' when you
login via ssh to run OpenCL apps. Or you can use xhost(1) to control
which users on your system may run OpenCL apps.
You may want to refer to my guide on the hashcat wiki:
http://hashcat.net/wiki/doku.php?id=linux_server_howto
- epixoip.
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