Date: Tue, 22 May 2012 22:29:52 +0200 From: magnum <john.magnum@...hmail.com> To: john-dev@...ts.openwall.com Subject: Re: Fwd: bash auto-completion for john On 05/22/2012 07:39 PM, Frank Dittrich wrote: > I just realized it might be more important to add support for GPU > specific options. > > (E.g., I saw -pla=1 mentioned in some john-dev threads.) > > Can someone post john's usage output for a CUDA/OpenCL build Ah, yes. For CUDA builds there is -device only. For OpenCL builds, there are -platform and -device. A GPU build has both CUDA and OpenCL (and then the -device option will mean CUDA device or OpenCL device depending on what format you chose). They will show up like this in the usage blob: CUDA build: --device=N set CUDA device, default 0 OpenCL build: --platform=N (or =LIST) set OpenCL platform, default 0 --device=N set OpenCL device, default 0 GPU build: --platform=N (or =LIST) set OpenCL platform, default 0 --device=N set OpenCL or CUDA device, default 0 > I probably need to install a proprietary driver, and the GF108 isn't the > fastest nVidia card, but this shouldn't prevent me from using the GPU > for john, even if only to find out which additional options need to be > supported by the bash completion script. The question is mostly about what distribution you use. Latest Ubuntu versions of "nvidia-current" are OK for anything but GTX6xx as far as I know. If you are to install the nvidia drivers off their web you may need to blacklist nouveau first. > (Do we even need additional --list= values, to list the available GPUs...) --device=LIST (or --platform=LIST which is currently exactly the same) works for OpenCL while CUDA values are in the blind for now. But I think it's enough to just expand the options, not the arguments. Anyway here's an example output (CPU only): $ ../run/john --plat=list Platform #0 name: Intel(R) OpenCL Platform version: OpenCL 1.1 LINUX Device #0 name: Intel(R) Core(TM)2 Duo CPU P8600 @ 2.40GHz Device vendor: Intel(R) Corporation Device type: CPU (LE) Device version: OpenCL 1.1 (Build 15293.6649) Driver version: 1.1 Global Memory: 3855 MB Global Memory Cache: 3072 KB Local Memory: 32 KB (Global) Max clock (MHz) : 2400 Max Work Group Size: 1024 Parallel compute cores: 2 Platform #1 name: AMD Accelerated Parallel Processing Platform version: OpenCL 1.1 AMD-APP-SDK-v2.5 (684.213) Device #0 name: Intel(R) Core(TM)2 Duo CPU P8600 @ 2.40GHz Device vendor: GenuineIntel Device type: CPU (LE) Device version: OpenCL 1.1 AMD-APP-SDK-v2.5 (684.213) Driver version: 2.0 Global Memory: 3855 MB Global Memory Cache: 32 KB Local Memory: 32 KB (Global) Max clock (MHz) : 800 Max Work Group Size: 1024 Parallel compute cores: 2 I suppose you could grep for /^Platform #([0-9]+)/ and /^\tDevice #([0-9]+)/ if you like. magnum
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