[hpsdr] 20140126cuSDR64 & TK1

[Bernd Gasser]

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

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