Hi Sylvain, Nice work, I just gave it a spin here are my results;-
I hit the 'clCreateFromGLTexture' issue when compiling the benchmark tool, not only did I need to comment out the #define but I also needed to turn off -Werror in the makefile. I get 61msps with a GT9800 on a i7-950 @ 3.06G Interestingly I find that the benchmark results are erratic for a while and then stabilise as shown below. Mike Selected device: GeForce 9800 GT 100 Frames time: 917843 us BW estimated: 57.121752 Msps 100 Frames time: 1271217 us BW estimated: 41.242998 Msps 100 Frames time: 3517962 us BW estimated: 14.903174 Msps 100 Frames time: 2363734 us BW estimated: 22.180499 Msps 100 Frames time: 2536602 us BW estimated: 20.668911 Msps 100 Frames time: 861079 us BW estimated: 60.887329 Msps 100 Frames time: 2259326 us BW estimated: 23.205505 Msps 100 Frames time: 3436555 us BW estimated: 15.256209 Msps 100 Frames time: 2754773 us BW estimated: 19.031986 Msps 100 Frames time: 1651273 us BW estimated: 31.750534 Msps 100 Frames time: 1034269 us BW estimated: 50.691648 Msps 100 Frames time: 3286238 us BW estimated: 15.954048 Msps 100 Frames time: 2911666 us BW estimated: 18.006461 Msps 100 Frames time: 2699627 us BW estimated: 19.420757 Msps 100 Frames time: 1940623 us BW estimated: 27.016479 Msps 100 Frames time: 2265683 us BW estimated: 23.140395 Msps 100 Frames time: 3601188 us BW estimated: 14.558751 Msps 100 Frames time: 2266194 us BW estimated: 23.135177 Msps 100 Frames time: 1710148 us BW estimated: 30.657464 Msps 100 Frames time: 2172665 us BW estimated: 24.131102 Msps 100 Frames time: 2452539 us BW estimated: 21.377356 Msps 100 Frames time: 3127293 us BW estimated: 16.764915 Msps 100 Frames time: 1545986 us BW estimated: 33.912856 Msps 100 Frames time: 858462 us BW estimated: 61.072942 Msps 100 Frames time: 859063 us BW estimated: 61.030215 Msps 100 Frames time: 864266 us BW estimated: 60.662805 Msps 100 Frames time: 863003 us BW estimated: 60.751585 Msps 100 Frames time: 850487 us BW estimated: 61.645622 Msps 100 Frames time: 854783 us BW estimated: 61.335801 Msps 100 Frames time: 852875 us BW estimated: 61.473018 Msps 100 Frames time: 858433 us BW estimated: 61.075005 Msps 100 Frames time: 859781 us BW estimated: 60.979249 Msps 100 Frames time: 850237 us BW estimated: 61.663748 Msps 100 Frames time: 857009 us BW estimated: 61.176487 Msps 100 Frames time: 854203 us BW estimated: 61.377448 Msps 100 Frames time: 856246 us BW estimated: 61.231001 Msps 100 Frames time: 854021 us BW estimated: 61.390528 Msps 100 Frames time: 853289 us BW estimated: 61.443192 Msps 100 Frames time: 858114 us BW estimated: 61.097710 Msps 100 Frames time: 853439 us BW estimated: 61.432393 Msps 100 Frames time: 857709 us BW estimated: 61.126559 Msps 100 Frames time: 856152 us BW estimated: 61.237724 Msps 100 Frames time: 856003 us BW estimated: 61.248383 Msps ... On 27 October 2013 07:23, Sylvain Munaut <246...@gmail.com> wrote: > Hi, > > > As some of you know, beginning of this month I presented a new > GNURadio block I wrote that implements a RTSA like spectrum > visualization of the spectrum similar to those found on R&S / Agilent > / Tek equipement. > > I've just pushed the latest version of it on git and this includes a > proper integration with either the WX or QT GUI of gnuradio. And I > thought this would be a good occasion to also make the announce on > this mailing list for those who didn't attend GRC and are not > following the IRC channel. > > The home page of the project can be found at > https://sdr.osmocom.org/trac/wiki/fosphor > There isn't much information there, but you'll find a few screen shot > of what the display looks like which will hopefully convince you to > try it out for yourself. Believe me it's even better when it moves :) > > As the title says, the block relies on GPU acceleration. The > computations are pretty heavy since every single input sample will be > processed (as opposed to the current FFT sinks that just do periodic > snaptshots), thereforce GPU acceleration is pretty much a must to > support the very wideband devices like hackrf/bladerf/b200 ... > > More precisely it uses OpenCL and OpenGL and the data sharing > extension between the two (known as CL/GL interop). That means that to > use it, you'll need hardware that supports those and the appropriate > drivers. For OSX that shouldn't be much of an issue if the machine has > a decent GPU. For Linux, you'll need the binary drivers for either AMD > or NVidia. Intel cards on linux most likely won't work. Although the > more recent hardware can handle it, Intel decided to limit OpenCL > support to Windows (and possibly OSX, not sure). > > It would be very helpful if you could report success / failure so we > can try to list what hardware is out there and which works / which > doesn't. > > For the installation you can grab the sources from git : > git://git.osmocom.org/gr-fosphor > It's only compatible with Gnuradio 3.7 and I'm not planning to > backport it, it's about time people update. > You will also needs a few dependencies such as freetype2 and glfw3. > For the latter, make sure to use version 3.x and to build it wit > -DBUILD_SHARED_LIBS=true > > A MacPort port and a PyBOMB recipe are also in the works and should > soon be available. > > Also, you should make sure to use a very recent version of Gnuradio > since some of the required fixes were just merged today. To take > advantage of gr-fosphor from inside osmocom_fft, you'll also want to > update your gr-osmosdr source block and use the -F option when > starting osmocom_fft to enable the WX fosphor widget. > > Finally, I'd like to say a big thanks to my fellow osmocom members and > the people on IRC who did a lot of testing on various hardware and > platforms to try to make this release work "out of the box" for as > many people as possible. > > > Cheers, > > Sylvain > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >
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