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Date: Mon, 5 Nov 2012 20:30:42 -0700
From: Stephen John Smoogen <>
To: john-users <>
Subject: Trying to figure out OPEN CL working

So I cobbled together a system to work with GPU's and am now trying to
determine what is going on with it :).

The system is an Asus motherboard with a AMD Phenom(tm) II X4 955
processor and 2 video cards (a ATI 6850 and an ATI 5870). System is
currently running CentOS 6.3 and has the Catalyst 12.10 drivers
installed and running. When I do a

$ ./john --list=opencl-devices
Platform #0 name: AMD Accelerated Parallel Processing
Platform version: OpenCL 1.1 AMD-APP (831.4)
	Device #0 name:		AMD Phenom(tm) II X4 955 Processor
	Device vendor:		AuthenticAMD
	Device type:		CPU (LE)
	Device version:		OpenCL 1.1 AMD-APP (831.4)
	Driver version:		2.0
	Global Memory:		7871 MB
	Global Memory Cache:	64 KB
	Local Memory:		32 KB (Global)
	Max clock (MHz) :	3210
	Max Work Group Size:	1024
	Parallel compute cores:	4

$ lspci | grep VGA
02:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee
ATI Cypress [Radeon HD 5800 Series]
04:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee
ATI Barts XT [ATI Radeon HD 6800 Series]

$ lsmod | grep fg
fglrx                4740767  3

I was expecting to see them listed... so I am guessing I am doing
something wrong somewhere. I have gone through the wiki and some other
sites to try and find information on what to do next and not found
anything that stands out which made me think I must have missed
something very obvious.


Stephen J Smoogen.
"Don't derail a useful feature for the 99% because you're not in it."
Linus Torvalds
"Years ago my mother used to say to me,... Elwood, you must be oh
so smart or oh so pleasant. Well, for years I was smart. I
recommend pleasant. You may quote me."  —James Stewart as Elwood P. Dowd

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