[Discuss-gnuradio] Block's maximum Samples per second

2016-08-14 Thread Joe D
Hello GNURadio’ers Referring to numerous papers and previous discussions, GNURadio design is such as a block will run as fast as the CPU will allow it (unless limited by the source/sink front-end’s speed or introducing a Throttle Block.) But practically how fast will it go, is there a know

[Discuss-gnuradio] GNURadio scheduler behind the scene

2014-12-25 Thread Joe D
Season's Greetings GNURadio community and happy new year 2015! I was having a thorough read through Tom Rondeau's presentation covering the gnuradio Scheduler Details, a big thanks Tom for clarifying the processes behind the scene, is there a narrated/video version of this preso? I'm interes

[Discuss-gnuradio] Why SWIG has been selected as C++ wrapper for Python for GNURadio ?

2014-06-20 Thread Joe D
Hi All This is a question intended for the Software designers and maintainers of the GNURadio Is there a specific reason / advantage of using SWIG as a C++ wrapper over using other avaialble wrappers for C++ as Boost.Python , Cython etc in the context of GNURadio ? Thanks! Joe __

[Discuss-gnuradio] Flow graph using RTL-SDR or OSMOSDR source doesn't execute on 3.6.4.1

2013-05-04 Thread Joe D
Hi All I have a fresh install of ubuntu 12.04.2 LTS 64 bits with gnuradio v3.6.4.1-185-g8fda7aca. Flow graph using RTL-SDR or OSMOSDR source doesn't execute. I get the following log --- Executing: "/root/Other/GNU_Rad

Re: [Discuss-gnuradio] Flow graph using RTL-SDR or OSMOSDR source doesn't execute on 3.6.4.1

2013-05-04 Thread Joe D
. Leech wrote: > On 05/04/2013 09:19 PM, Joe D wrote: > >> Hi All >> >> I have a fresh install of ubuntu 12.04.2 LTS 64 bits with gnuradio >> v3.6.4.1-185-g8fda7aca. >> Flow graph using RTL-SDR or OSMOSDR source doesn&#

Re: [Discuss-gnuradio] Flow graph using RTL-SDR or OSMOSDR source doesn't execute on 3.6.4.1

2013-05-05 Thread Joe D
raph provided by gr-osmosdr[1] on both of > your machines? > > [1]available in gr-osmosdr/apps folder ( > https://github.com/mjmdavis/gr-osmosdr/tree/master/apps) > > --- > Regards > Sreeraj Rajendran > http://home.iitb.ac.in/~rsreeraj > > -- >

Re: [Discuss-gnuradio] Flow graph using RTL-SDR or OSMOSDR source doesn't execute on 3.6.4.1

2013-05-05 Thread Joe D
; > Regards > Joe > > > > On Sun, May 5, 2013 at 4:29 PM, Sreeraj Rajendran > wrote: > >> >> Hi, >> >> Did you try example grc flowgraph provided by gr-osmosdr[1] on both of >> your machines? >> >> [1]available in gr-osmosdr/apps fold

Re: [Discuss-gnuradio] Flow graph using RTL-SDR or OSMOSDR source doesn't execute on 3.6.4.1

2013-05-05 Thread Joe D
Thanks for the advice Sreeraj, but would a sampling rate mismatch stop the flow graph from executing at all? If In the same flow graph I substitute the RTL-SDR by the UHD USRP Source using the N210, the flow graph executes properly. Joe On Mon, May 6, 2013 at 8:58 AM, Marcus D. Leech wrote:

Release 3.8.1 on ubuntu 18.04 qa_qtgui (Failed) with Segmentation fault

2020-04-26 Thread Joe D
Hello GNURadio’ers Release 3.8.1 installed from source on ubuntu 18.04 qa_qtgui (Failed) with Segmentation fault as below (It was run on a native X server access Terminal ) testing with xvfb-run ctest -V -R qa_qtgui ends with Segmentation fault as well 349/365 Testing: qa_qtgui 349/365 Test: qa

Re: Release 3.8.1 on ubuntu 18.04 qa_qtgui (Failed) with Segmentation fault

2020-04-26 Thread Joe D
from ==22123== ERROR SUMMARY: 11565 errors from 209 contexts (suppressed: 0 from 0) Segmentation fault On Sun, Apr 26, 2020 at 9:27 PM Vasil Velichkov wrote: > Hi Joe, > > On 26/04/2020 14.01, Joe D wrote: > > Attached a valgrind log > > >> root@ubuntu-srv-10:/Applicati

Re: Release 3.8.1 on ubuntu 18.04 qa_qtgui (Failed) with Segmentation fault

2020-04-27 Thread Joe D
Thanks Marcus and Vasil, you were spot on regarding Qt4 I still had residue of Qt4 packages, once these purged and GNURadio rebuilt , no more crashes with segmentation fault Cheers Joe On Sun, Apr 26, 2020 at 10:56 PM Vasil Velichkov wrote: > Hi Joe, > > On 26/04/2020 15.13, Jo