Re: [Discuss-gnuradio] gr-fosphor : New RTSA-like visualization block for GNURadio using GPU acceleration

[Darren Long]

Good call.  I applied the 4 patches and now I can run osmocom_fft with 
the -F option succesfully.
--------
$ osmocom_fft -F  -a "fcd=1"
linux; GNU C++ version 4.8.1; Boost_105300; UHD_003.005.004-0-unknown

gr-osmosdr v0.1.x-xxx-xunknown (0.1.1git) gnuradio 3.7.1
built-in source types: file osmosdr fcd rtl rtl_tcp uhd hackrf bladerf 
netsdr
Using FUNcube Dongle V2.0 (hw:3)
Opened: hw:3
Using Volk machine: sse4_2_64_orc
Dongle sucessfully initialized
Result of Action :+++++
FCDAPP 20.03
 Lna gain enabled
 Mixer gain enabled
If gain set to: 15
If gain set to: 15
[+] Selected device: GeForce GTX 760
-----------

However, it seems to be quite laggy, with 'chunks' of 'water' 'falling' 
at about 1 second intervals and not flowing smoothly.

Looks nice though :)

Cheers,

Darren


On 27/10/13 15:23, Sylvain Munaut wrote:
> Hi,
>
> > Set Frequency to: 7.1e+06 Hz, corrected to: 7100000 Hz
> > [xcb] Unknown request in queue while dequeuing
> > [xcb] Most likely this is a multi-threaded client and XInitThreads has not
> > been called
> > [xcb] Aborting, sorry about that.
> > python2: ../../src/xcb_io.c:179: dequeue_pending_request: Assertion
> > `!xcb_xlib_unknown_req_in_deq' failed.
> > Aborted (core dumped)
> Your GNURadio is too old.
>
> At the very least you need those patches: http://gnuradio.org/redmine/issues/596
> And preferrably those as well : http://gnuradio.org/redmine/issues/601
>
> Note that they're only changin python files and text template files so
> you can "monkey patch" manually your installation, no need to
> recompile everything.
>
> Cheers,
>
>     Sylvain