Date: Thu, 24 May 2012 17:55:26 +0400 From: Solar Designer <solar@...nwall.com> To: john-users@...ts.openwall.com Subject: Re: Cuda version of John the Ripper On Thu, May 24, 2012 at 08:50:06AM -0400, Cody Sapp wrote: > Okay that worked, but when I ran make linux-x86-64-cuda (since my computer > is 64-bit), these last few lines appeared before the command stopped > executing: > > t -ldl -lcudart -o ../run/john > /usr/bin/ld: cannot find -lcudart It's a bit puzzling that you got this far since the error indicates that your CUDA SDK is not fully available for this build. Have you used CUDA before? On this system? Here are settings that work with a default install from cudatoolkit_4.2.9_linux_64_ubuntu11.04.run: export PATH=$PATH:/usr/local/cuda/bin export LD_LIBRARY_PATH=/usr/local/cuda/lib64 What's your reason to use a CUDA-enabled build of John the Ripper? What hash types do you intend to use it with? Do we even have CUDA code for those? (It's not like a "CUDA version of John the Ripper". It is CUDA code for a handful of individual hash types.) Have you used John the Ripper before? Do you currently have it working on your target hashes? What performance are you getting, which you're presumably hoping to improve by using CUDA? Are you already using OpenMP or another approach to parallelization? What CPUs and GPUs do you have in that machine? Is this all just for the sake of it - try out a CUDA-enabled password cracker against whatever hashes and in whatever way? If so, you're probably equally interested in OpenCL as well (it is similarly supported for individual hash types), are you? > Are those errors going to be problematic? Of course. Your build of JtR has not completed. Alexander
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