Does the performance improve in fullscreen? I can see having to share time with the rest of the GUI, but in full screen there is nothing else taking time.
Sat, May 21, 2011 at 7:12 AM, cyrille henry <c...@chnry.net> wrote: > hello, > > from my experience, Gem is 2 times faster on the same computer using ubuntu > than osX. > thanks to nvidia profiling tools, Nicolas pointed that gem is limited to > 50% usage of the GPU. > there is certainly a limitation somewhere on osX preventing application to > use full performance of the hardware. > > so, you applications are slower, but the interface will always be smooth... > > Cyrille > > Le 21/05/2011 12:59, j...@rybn.org a écrit : > >> Hello Chris, >> >> If I have time to do this test the next time i will do it (putting the >> graphic card on the 4x PCIe bus). >> Now, it works fine with 2 MacPro (with one graphic card and 2 PS3 Eye on >> each MacPro) and Ubuntu 10.04. >> I have installed PureData 0.42.5, last GEM from SVN and ATI driver >> Catalyst for the Radeon HD 5770 and the acceleration is OK. >> When i was using 'dialog' message, i can't remember what i got. >> Thanx for your help and suggestion. I will try to test all your >> recommandations the next time. >> One remark : it seems the graphic acceleration is better under Ubuntu than >> MacOSX. Is there a problem with the driver under MacOSX ? (The same patch >> worked faster under Ubuntu). >> ++ >> >> Jack >> >> >> >> Jack >>> >>> I think two of those cards might draw too much power to run at the same >>> time? Also, check the PCIe lane speeds and try running them at 4x or 8x >>> rather than 16x. >>> >>> AS far as getting 4 of the same cam running, it depends on how the driver >>> presents multiple cams to Quicktime. It might show up as one device with >>> four inputs, for example. Use the 'dialog' message to check it out. >>> >>> On Thu, May 19, 2011 at 5:00 AM, Jack<j...@rybn.org> wrote: >>> >>> Thanx Mathieu, >>>> >>>> I will give it a try with your tips. >>>> I have started to install Ubuntu 10.04 on the Mac Pro and i think i will >>>> use this OS. >>>> >>>> In fact, i am crazy because i have installed two ATI Radeon HD 5770 on >>>> this Mac Pro (version 5.1). Each card has 2 Mini Display Ports and 1 DVI >>>> port. On the Apple website it is write each graphic card accept a >>>> resolution of 2560x1600 px. When i plug 2 TV screen (HDMI and each >>>> screen with 1280x768px) on the 2 Mini Display Port on one card (with an >>>> adapter Mini Display Port/HDMI), it works fine. But if i use the second >>>> card with the same configuration (so 4 TV screen on the 4 Mini Display >>>> Port), it seems the computer have not enough power, the Finder quit each >>>> 10 second. >>>> I use MacOSX.6.6 and this is not the lastest version (the lastest is >>>> X.6.7 and maybe it is working with this version but now i have no time >>>> to test this config). >>>> >>>> With Ubuntu, the sytem start to load then the 4 screens stay black. I >>>> have to unplug the 2 cables on one graphic card to boot normaly. So i >>>> can only use 2 screens. >>>> >>>> I don't know where is the problem (power ? Apple computers ?). >>>> If someone have any experience on this problem, i will be happy to >>>> listen him. >>>> >>>> Now, the solution that i am going to use : >>>> 1 Mac Pro with Ubuntu and one graphic card (ATI Radeon HD 5770) >>>> 1 PC with Ubuntu and one graphic card (NVidia GT 440 or NVidia GTX 460) >>>> ++ >>>> >>>> Jack >>>> >>>> >>>> >>>> >>>> Le mercredi 18 mai 2011 à 11:58 -0400, Mathieu Bouchard a écrit : >>>> >>>>> On Wed, 18 May 2011, j...@rybn.org wrote: >>>>> >>>>> I'm going to work on a Mac Pro with MacOsX.6.7 and the latest stable >>>>>> Pd-extended 0.42.5. I would like to connect four PS3 Eye on this >>>>>> computer and use GEM with pix_video to read these four devices in >>>>>> >>>>> four >>>> >>>>> instance of Pd (=> one camera per instance of pd). I will use Macam >>>>>> driver (or something else ?) Is it easy to get each camera working >>>>>> >>>>> in >>>> >>>>> the same time on this system ? Do you have experience in this area ? >>>>>> >>>>> >>>>> My experience with just one cam on OSX and Pd-extended 42 was that >>>>> >>>> object >>>> >>>>> creation order mattered because each [pix_video] object automatically >>>>> opens the first available camera AND the "device 1" method didn't >>>>> >>>> work. >>>> >>>>> So, to access only the 2nd camera, I had to create two objects and >>>>> >>>> only >>>> >>>>> use the 2nd one. >>>>> >>>>> using 4 [pix_video] objects for 4 cameras may work, but they will be >>>>> assigned by creation order. >>>>> >>>>> >>>>> _______________________________________________________________________ >>>>> | Mathieu Bouchard ---- tél: +1.514.383.3801 ---- Villeray, Montréal, >>>>> >>>> QC >>>> >>>> >>>> _______________________________________________ >>>> Pd-list@iem.at mailing list >>>> UNSUBSCRIBE and account-management -> >>>> http://lists.puredata.info/listinfo/pd-list >>>> >>>> >>>> >>> >> >> >> _______________________________________________ >> Pd-list@iem.at mailing list >> UNSUBSCRIBE and account-management -> >> http://lists.puredata.info/listinfo/pd-list >> >> > _______________________________________________ > Pd-list@iem.at mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list >
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