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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