Date: Thu, 17 May 2012 09:45:43 +0530 From: SAYANTAN DATTA <std2048@...il.com> To: john-dev@...ts.openwall.com Subject: Re: Sayantan: Weekly Report #4 On Thu, May 17, 2012 at 6:06 AM, Solar Designer <solar@...nwall.com> wrote: > In Accomplishments above, you don't mention any of your work on using > multiple GPUs at once - although I think you did some work on this. > Does this mean that you did not actually "accomplish" anything in that > respect? It'd be helpful if you let us know what you tried and what you > observed, even if the goal was not achieved. > Yes I have implemented simultaneous multiple gpu cracking in common_opencl_pbkdf2. However I haven't posted a patch yet. Here's one sample run using 570 and 7970. OpenCL platform 0: NVIDIA CUDA, 1 device(s). Using device 0: GeForce GTX 570 Optimal Work Group Size:512 Kernel Execution Speed (Higher is better):0.414070 OpenCL platform 1: AMD Accelerated Parallel Processing, 2 device(s). Using device 0: Tahiti Optimal Work Group Size:256 Kernel Execution Speed (Higher is better):1.399552 Benchmarking: MSCASH2-OPENCL [PBKDF2_HMAC_SHA1]... (8xOMP) DONE Raw: 116250 c/s real, 1344K c/s virtual Content of type "text/html" skipped
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