Date: Fri, 6 Apr 2012 07:37:43 -0600 From: RB <aoz.syn@...il.com> To: john-dev@...ts.openwall.com Subject: Re: JtR:Multi-GPU Setups On Fri, Apr 6, 2012 at 01:55, SAYANTAN DATTA <std2048@...il.com> wrote: > Did you run any openCL application? If so, which vendor's openCL did you > use? Does it detect both the cards? FWIW, OpenCL (at least on my Linux platform) recognizes both the single card that I have and the system's processor as available "platforms", but JtR has only been coded to use one at a time. From what little additional reading I've done, programming OpenCL to use multiple platforms is as "easy" as initializing each and shuffling work to them. Where it appears to get difficult is deciding how much of the work to deliver to each platform. I, for one, would be happy to be able to use both GPU and CPU at once, or multiple GPUs, but haven't the time and resources to start hacking at that.
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