Date: Wed, 13 Feb 2013 09:58:52 +0530 From: Sayantan Datta <std2048@...il.com> To: john-dev@...ts.openwall.com Subject: Re: Do you have this hardware and a few minutes? On Wed, Feb 13, 2013 at 3:40 AM, magnum <john.magnum@...hmail.com> wrote: > On 9 Feb, 2013, at 5:51 , Sayantan Datta <std2048@...il.com> wrote: > > I've my 4890 lying around but I'm unable to use it alongside 7970. Even > though I have configured my driver to detect both the cards , but AMD > OpenCL won't recognize them simultaneously. I posted this issue on amd > forums but I didn't get a complete solution. > http://devgurus.amd.com/message/1284901#1284901 > > > I helped someone set up a machine with two cards for GPGPU, running Linux. > There was no chance of getting the second GPU to work (the one without a > physical monitor attached) until we made a loopback plug, fooling it into > thinking there is a monitor. Maybe this has something to do with it? > > http://www.overclock.net/t/384733/the-30-second-dummy-plug > > After that, it was just "aticonfig --adapter=all --initial" and everything > worked fine. > > magnum > That is really cool hack. I did "aticonfig --adapter=all --initial" and my driver detects both the card ,but opencl won't. Clinfo only shows the 7970 and cpu. sayantan@...n:/usr/bin$ aticonfig --adapter=1 --odgc Adapter 1 - ATI Radeon HD 4800 Series Core (MHz) Memory (MHz) Current Clocks : 240 975 Current Peak : 850 975 Configurable Peak Range : [500-1000] [975-1200] GPU load : 0% sayantan@...n:/usr/bin$ aticonfig --adapter=0 --odgc Adapter 0 - AMD Radeon HD 7900 Series Core (MHz) Memory (MHz) Current Clocks : 300 150 Current Peak : 925 1375 Configurable Peak Range : [300-1125] [150-1575] GPU load : 0% Content of type "text/html" skipped
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