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Date: Tue, 6 Nov 2012 09:21:12 -0700
From: Stephen John Smoogen <smooge@...il.com>
To: john-users@...ts.openwall.com
Subject: Re: Trying to figure out OPEN CL working

On 6 November 2012 09:08, Lukas Odzioba <lukas.odzioba@...il.com> wrote:
> Some questions:
> Does other opencl apps (for example bitcoin miners like "cgminer") are
> able to recognize your graphics cards?

I tested oclhashcat last night and it can use one card (whichever one
X is running on) and was able to show increased speed (about 10x
faster than the CPU's) so I am sure it was actually using the GPU.

> Do you use X environment or just console?

I tried X and got segmentation faults with john so I figured I needed
to run this in console mode.

I can remove one card and see if that changes things. If I can get the
card to work I will get a second one and see if the CrossFire will
allow for increased usage.

> Lukas
>
> 2012/11/6 Stephen John Smoogen <smooge@...il.com>:
>> 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.
>>
>> Running
>>
>>
>> --
>> 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



-- 
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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