john-users - Re: Re: 'close' to getting opencl working

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Date: Mon, 29 Apr 2013 14:02:30 -0300
From: Claudio AndrĂŠ <claudioandre.br@...il.com>
To: jfoug <jfoug@....net>
Cc: john-users@...ts.openwall.com
Subject: Re: Re: 'close' to getting opencl working

Somehow expected (known issues) at the end.
http://developer.amd.com/wordpress/media/2013/01/AMD_APP_SDK_Release_Notes_Samples.pdf

fgrlx is the GPU driver 'name', simply doesn


2013/4/29 jfoug <jfoug@....net>

> I have gotten OpenCL working.  I installed the AMD drivers for v1.2 and
> things are now working.  I have not uninstalled the Intel drivers, they are
> still there.  The AMD drivers were easier to install, since they actually
> installed fine under Unbuntu, without having to use alien and converting
> all
> the rpm files into deb files.
>
> Well, it works (sort of). Should be good enough to at least compile/test.
>  I
> am not looking for performance, only build/run.
>
> I do get this error at startup of JtR:
>
> $ ../run/john -test=10 -form=xsha512-ng-opencl
> Setting of real/effective user Id to 0/0 failed
> FATAL: Module fglrx not found.
> Error! Fail to load fglrx kernel module! Maybe you can switch to root user
> to load kernel module directly
> Device 0: Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz
> Local worksize (LWS) 1, global worksize (GWS) 262144
> Benchmarking: Mac OS X 10.7+ salted SHA-512 (pwlen < 55) [OpenCL
> (inefficient, development use mostly)]... DONE
> Many salts:     6728K c/s real, 1705K c/s virtual
> Only one salt:  6044K c/s real, 1620K c/s virtual
>
>
> I tried installing fglrx (not sure what it is).  Sounded like it hooked
> into
> the kernel. However, next reboot of Unbuntu would not start properly.  It
> simply gave the graphic enter passwd screen, then after that was entered,
> it
> would simply cycle back to that screen.   Hitting Ctrl-Alt-F1 (go to screen
> 1), I could log in, and then startx was failing.  I uninstalled fglrx and
> after a couple reboots, I have my Ubuntu back.  I did have to re-install
> the
> AMD OpenCL again.  I think the uninstall reverted the lib path and other
> things back to the intel OpenCL.  But after reinstall of AMD, and another
> reboot, things are working.  The error message is there, but I will simply
> ignore it.
>
> Thanks for help ppl.  It is a new experience for me.
>
> Jim.
>
> -----Original Message-----
> From: Claudio André [mailto:claudioandre.br@...il.com]
> Sent: Saturday, April 27, 2013 7:49
> To: john-users@...ts.openwall.com
> Subject: [john-users] Re: 'close' to getting opencl working
>
> Just to keep an answer here on '-users':
> Seems a problem is happening at context creation. If you enable DEBUB, we
> might confirm that (on bleeding).
>
> Claudio
>
>