[hpsdr] 20140126cuSDR64 & TK1

[k3it]

Here is a link that describes what needs to be done to convert to cufftw

http://docs.nvidia.com/cuda/cufft/index.html#fftw-supported-interface

But this looks too easy to be true :)

I haven't tried it.  Also running Jetson board here with gphpsdr3

73
Vasiliy


On Tue, Aug 26, 2014 at 9:01 AM, Bernd Gasser <bernd.gasser at tele2.at> wrote:

> ***** High Performance Software Defined Radio Discussion List *****
>
> Hi Hermann et al,
> after seeing all your interesting messages I was also infected by the
> cuda-virus and ordered a Jetson TK1 to play with.
>
> So far I managed to set it up with Qt5.4 and cuda-6.0 installed and I have
> successfully compiled cuSDR64 and ghpsdr-alex on it which both seems to run
> fine with a little high CPU-load. (cuSDR64 shows abt 155%).
>
> When looking at the shared libraries mapped to the running binary I noticed
> it is still using the 'standard libfftw3' library instead of the ones
> optimized for the TEGRA 192 GPU cores supplied with cuda-6.0.
>
>
>  UID        PID  PPID  C STIME TTY          TIME CMD
>  ubuntu    2942  2607 99 12:07 pts/4    00:38:25 ./cuSDR64
>
>  ubuntu at tegra-ubuntu:/proc/2942$  grep fftw maps
>  b6665000-b67ad000 r-xp 00000000 b3:01 23545
> /usr/lib/arm-linux-gnueabihf/libfftw3f.so.3.3.2
>  b67ad000-b67b4000 ---p 00148000 b3:01 23545
> /usr/lib/arm-linux-gnueabihf/libfftw3f.so.3.3.2
>  b67b4000-b67bc000 r--p 00147000 b3:01 23545
> /usr/lib/arm-linux-gnueabihf/libfftw3f.so.3.3.2
>  b67bc000-b67bd000 rw-p 0014f000 b3:01 23545
> /usr/lib/arm-linux-gnueabihf/libfftw3f.so.3.3.2
>
> What would be the required change in the build environment to make use of
> the cuda-6.0 libraries in  /usr/local/cuda-6.0/lib/libcufftw* ? - Has
> anyone
> done this yet and could give me some pointers?
>
> tnx & 73,
> Bernd/OE1ACM
>
>
>
>
>
>
>
> -----Ursprüngliche Nachricht-----
> Von: Hpsdr [mailto:hpsdr-bounces at lists.openhpsdr.org] Im Auftrag von
> Hermann
> Gesendet: Montag, 18. August 2014 13:24
> An: Chris Smith; hpsdr at lists.openhpsdr.org
> Betreff: Re: [hpsdr] 20140126cuSDR64 & TK1
>
> ***** High Performance Software Defined Radio Discussion List *****
>
>
> _______________________________________________
> HPSDR Discussion List
> To post msg: hpsdr at openhpsdr.org
> Subscription help:
> http://lists.openhpsdr.org/listinfo.cgi/hpsdr-openhpsdr.org
> HPSDR web page: http://openhpsdr.org
> Archives: http://lists.openhpsdr.org/pipermail/hpsdr-openhpsdr.org/
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openhpsdr.org/pipermail/hpsdr-openhpsdr.org/attachments/20140826/02c8bfe0/attachment-0003.htm>