Re: GNU Radio on Raspberry Pi 4?

[Glen Langston]

Dear Franco,

Thanks for your efforts,  I’ll try your version ASAP.

Best regards

Glen


> On Dec 17, 2020, at 8:33 PM, Franco VENTURI  wrote:
> 
> Glen,
> if you are interested in using SDRplay API version 3.X (I think the latest 
> version of their API is 3.07), and you are on GNU Radio 3.7, you may want to 
> take a look at the gr-sdrplay GNU Radio OOT module I modified to work with 
> SDRplay API version 3.X: 
> https://github.com/fventuri/gr-sdrplay/tree/API3+RSPduo (notice the 
> non-default branch name: 'API3+RSPduo').
> 
> If instead you are on GNU Radio 3.9/master, I rewrote that OOT module from 
> scratch, called it 'gr-sdrplay3', and you'll find it here: 
> https://github.com/fventuri/gr-sdrplay3
> 
> Let me know if you have problems building or running those modules (possibly 
> by creating a new issue in GitHub to avoid hijacking this thread).
> 
> Franco
> 
> 
>> On 12/17/2020 1:34 PM Glen Langston  wrote:
>> 
>> 
>> Concerning Full Raspberry Pi OS software installed on a single Raspberry Pi 
>> image,
>> we’re encouraging high schools to use this installation document.
>> https://docs.google.com/document/d/1hfS7cRx3emlZz0sTs583zN8o-35nKtIej6BYMKCJLXY/edit?usp=sharing
>> 
>> The document includes the links to the OS and hardware to purchase.
>> 
>> Unfortunately this is a 3.7.13.4 Gnuradio release, as we’ve not had the 
>> strength
>> to get the SDRPlay software support working for newer gnuradio Releases.
>> 
>> Best regards, 
>> 
>> Glen
>> 
>>> On Dec 17, 2020, at 12:03 PM, Kyeong Su Shin  wrote:
>>> 
>>> To whom it may concern:
>>> 
>>> Just a tip: If you are building GNU Radio from the source, dependencies and 
>>> build procedures for Raspberry Pi is available at the GNU Radio Wiki. It 
>>> assumes that you are doing on-board compile.
>>> 
>>> See: https://wiki.gnuradio.org/index.php/InstallingGR#From_Source
>>> 
>>> 
>>> Regards,
>>> Kyeong Su Shin
>>> 보낸 사람: Albin Stigö  대신 Discuss-gnuradio 
>>> 
>>> 보낸 날짜: 2020년 12월 18일 금요일 오전 1:13
>>> 받는 사람: Kristoff ; GNURadio Discussion List 
>>> 
>>> 제목: Re: GNU Radio on Raspberry Pi 4?
>>> 
>>> There's no special configuration. Just install dependencies and build from 
>>> source. Put root on SSD or it will be very slow. Ubuntu 65bit is fine. In 
>>> general GNURadio is hell to build and get dependencies right, but in the 
>>> end it works well.
>>> 
>>> --Albin
>>> 
>>> On Thu, Dec 17, 2020, 16:37 Kristoff  wrote:
>>> Albin,
>>> 
>>> 
>>> Can you share your configuration for this? Do you need to set up 
>>> something special?
>>> Can you do this on standard ubuntu 64 bit (20.04LTS or 20.10) on a pi4b 
>>> or do you need another distro for this?
>>> 
>>> 
>>> I read somewhere opengl on the pi4 has not been released yes as it has 
>>> the pi4 has a more recent GPU.
>>> Or am I completely wrong?
>>> 
>>> 
>>> 73
>>> kristoff - ON1ARF
>>> 
>>> 
>>> On 17/12/2020 1:22 p.m., Albin Stigö wrote:
 I suspect a lot of the graphics could run perfectly fine if they took 
 advantage of the gpu better. A lot of the current rendering in 
 GNURadio (and GQRX) is very cpu bound.
 
 I had a spectrum and waterfall running easily at 60fps on a pi3 by 
 using opengl properly. Using vulkan on pi4 the sky is the limit.
 
 --Albin
 
 On Thu, Dec 17, 2020, 13:18 Marcus Müller >>> > wrote:
 
Can't stress this enough. Running a 32 bit Linux on a RPi 4 would be
like running Windows 98 on a modern PC and expecting top performance
from the CPU. You're not making use of the CPU you have, you're only
making use of a legacy mode that it still supports.
 
Best regards,
Marcus
 
On 17.12.20 10:53, Albin Stigö wrote:
> 64bit mode is most likely better because in addition to being
64bit it
> enables additional cpu features (certain new instructions and
more SIMD
> NEON registers)
> 
> On Thu, Dec 17, 2020, 10:36 jean-michel.fri...@femto-st.fr

> >
>>>
> >> wrote:
> 
>The benchmark on volk/64 bit kernel v.s 32 bit Raspbian is at
> https://pubs.gnuradio.org/index.php/grcon/article/view/73/55
>
>last page. I get 3 to 7-fold improvement by volk_config on a
dedicated
>toolchain for 64-bit CPU.
> 
>JM
> 
>--
>JM Friedt, FEMTO-ST Time & Frequency, 26 rue de l'Epitaphe,
25000
>Besancon, France
> 
>December 17, 2020 10:28 AM, "Kristoff" >>>
>>> wrote:
> 
>> HI all,
>> 
>> I 

Re: GNU Radio on Raspberry Pi 4?

[Franco VENTURI]

Glen,
if you are interested in using SDRplay API version 3.X (I think the latest 
version of their API is 3.07), and you are on GNU Radio 3.7, you may want to 
take a look at the gr-sdrplay GNU Radio OOT module I modified to work with 
SDRplay API version 3.X: 
https://github.com/fventuri/gr-sdrplay/tree/API3+RSPduo (notice the non-default 
branch name: 'API3+RSPduo').

If instead you are on GNU Radio 3.9/master, I rewrote that OOT module from 
scratch, called it 'gr-sdrplay3', and you'll find it here: 
https://github.com/fventuri/gr-sdrplay3

Let me know if you have problems building or running those modules (possibly by 
creating a new issue in GitHub to avoid hijacking this thread).

Franco
 

> On 12/17/2020 1:34 PM Glen Langston  wrote:
> 
>  
> Concerning Full Raspberry Pi OS software installed on a single Raspberry Pi 
> image,
> we’re encouraging high schools to use this installation document.
> https://docs.google.com/document/d/1hfS7cRx3emlZz0sTs583zN8o-35nKtIej6BYMKCJLXY/edit?usp=sharing
> 
> The document includes the links to the OS and hardware to purchase.
> 
> Unfortunately this is a 3.7.13.4 Gnuradio release, as we’ve not had the 
> strength
> to get the SDRPlay software support working for newer gnuradio Releases.
> 
> Best regards, 
> 
> Glen
> 
> > On Dec 17, 2020, at 12:03 PM, Kyeong Su Shin  wrote:
> > 
> > To whom it may concern:
> > 
> > Just a tip: If you are building GNU Radio from the source, dependencies and 
> > build procedures for Raspberry Pi is available at the GNU Radio Wiki. It 
> > assumes that you are doing on-board compile.
> > 
> > See: https://wiki.gnuradio.org/index.php/InstallingGR#From_Source
> > 
> > 
> > Regards,
> > Kyeong Su Shin
> > 보낸 사람: Albin Stigö  대신 Discuss-gnuradio 
> > 
> > 보낸 날짜: 2020년 12월 18일 금요일 오전 1:13
> > 받는 사람: Kristoff ; GNURadio Discussion List 
> > 
> > 제목: Re: GNU Radio on Raspberry Pi 4?
> >  
> > There's no special configuration. Just install dependencies and build from 
> > source. Put root on SSD or it will be very slow. Ubuntu 65bit is fine. In 
> > general GNURadio is hell to build and get dependencies right, but in the 
> > end it works well.
> > 
> > --Albin
> > 
> > On Thu, Dec 17, 2020, 16:37 Kristoff  wrote:
> > Albin,
> > 
> > 
> > Can you share your configuration for this? Do you need to set up 
> > something special?
> > Can you do this on standard ubuntu 64 bit (20.04LTS or 20.10) on a pi4b 
> > or do you need another distro for this?
> > 
> > 
> > I read somewhere opengl on the pi4 has not been released yes as it has 
> > the pi4 has a more recent GPU.
> > Or am I completely wrong?
> > 
> > 
> > 73
> > kristoff - ON1ARF
> > 
> > 
> > On 17/12/2020 1:22 p.m., Albin Stigö wrote:
> > > I suspect a lot of the graphics could run perfectly fine if they took 
> > > advantage of the gpu better. A lot of the current rendering in 
> > > GNURadio (and GQRX) is very cpu bound.
> > >
> > > I had a spectrum and waterfall running easily at 60fps on a pi3 by 
> > > using opengl properly. Using vulkan on pi4 the sky is the limit.
> > >
> > > --Albin
> > >
> > > On Thu, Dec 17, 2020, 13:18 Marcus Müller  > > > wrote:
> > >
> > > Can't stress this enough. Running a 32 bit Linux on a RPi 4 would be
> > > like running Windows 98 on a modern PC and expecting top performance
> > > from the CPU. You're not making use of the CPU you have, you're only
> > > making use of a legacy mode that it still supports.
> > >
> > > Best regards,
> > > Marcus
> > >
> > > On 17.12.20 10:53, Albin Stigö wrote:
> > > > 64bit mode is most likely better because in addition to being
> > > 64bit it
> > > > enables additional cpu features (certain new instructions and
> > > more SIMD
> > > > NEON registers)
> > > >
> > > > On Thu, Dec 17, 2020, 10:36 jean-michel.fri...@femto-st.fr
> > > 
> > > >  > > >
> > >  > > 
> > > >  > > >> wrote:
> > > >
> > > > The benchmark on volk/64 bit kernel v.s 32 bit Raspbian is at
> > > > https://pubs.gnuradio.org/index.php/grcon/article/view/73/55
> > > > 
> > > > last page. I get 3 to 7-fold improvement by volk_config on a
> > > dedicated
> > > > toolchain for 64-bit CPU.
> > > >
> > > > JM
> > > >
> > > > --
> > > > JM Friedt, FEMTO-ST Time & Frequency, 26 rue de l'Epitaphe,
> > > 25000
> > > > Besancon, France
> > > >
> > > > December 17, 2020 10:28 AM, "Kristoff"  > > 
> > > > >> wrote:
> > > >
> > > > > HI all,
> > > > >
> > > 

Re: GNU Radio on Raspberry Pi 4?

[Cinaed Simson]

The best way to obtain help is to attach the GRC file to an email and 
include the output of


  aplay -l
  grep VERSION_CODENAME /etc/os-release

Note, include he GRC file which is currently NOT working on your machine 
- and please DON'T attach an image of the GRC running on your machine!


Are you concluding "the Pi 4 just doesn't seem to have enough horsepower 
to run it in real time" simply because there's no sound - or for some 
other reason?


-- Cinaed

On 12/16/20 2:10 PM, Dan Romanchik KB6NU wrote:


Has anyone successfully run GNU Radio on a Pi 4? I recently purchased 
an RTL-SDR dongle and thought it would be fun to experiment a little 
with GNU Radio and learn something about SDR.


A couple of days ago, I fired up GNU Radio, and after having some 
trouble figuring out how to get the audio sink to talk to the Pi, I 
downloaded VE6EY's FM receiver flow graph. The flow graph runs, but 
the Pi 4 just doesn't seem to have enough horsepower to run it in real 
time. The audio is slow and distorted.


Thinking that it might be the WX widgets slowing down the program, I 
first deleted the FFT display widgets, then converted the WX slider 
controls to QT range controls. Neither had any effect on how well the 
flow graph ran.


GQRX and CubicSDDR seem to work just fine. At least with both of them, 
I'm able to receive FM broadcast and NOAA weather station. But, maybe 
the PI4 just doesn't have enough horsepower to run GNU Radio? If so, 
that's kind of disappointing.


73! <—ham radio lingo for “best regards"

*Dan KB6NU*
CW Geek, Ham Radio Instructor
Author of the "No Nonsense" amateur radio license study guides
Read my ham radio blog at http://www.kb6nu.com 

Re: First appear of the USRP blocks in GNU Radio

[Fabian Schwartau]

Hi,
should not be too hard to find the info online. Took me about a minute
in archive.org to find this document:
https://web.archive.org/web/20050306022404/http://www.ettus.com:80/downloads/usrp_guide.pdf
It popped up in the download section on their side on the 6th of March
in 2005 and it includes already GNU Radio stuff.

Hope that helps.

Best regards,
Fabian

Am 17.12.20 um 19:49 schrieb isaac mario tupac davila:
> Hi community!
> 
> I'm Isaac. I'd like to ask you a question. I'd like to add in my thesis
> information about the first time the USRP blocks appeared and were used.
> I found that the USRP1 was designed in 2004 but I'm not sure if this
> USRP appeared with the blocks or not.
> 
> https://www.sgo.fi/~j/usrp/overview-open.pdf
> 
> If you know any information about it , I would really appreciate it.
> 
> Thanks
> Regards
> Isaac T.

First appear of the USRP blocks in GNU Radio

[isaac mario tupac davila]

Hi community!

I'm Isaac. I'd like to ask you a question. I'd like to add in my thesis
information about the first time the USRP blocks appeared and were used. I
found that the USRP1 was designed in 2004 but I'm not sure if this USRP
appeared with the blocks or not.

https://www.sgo.fi/~j/usrp/overview-open.pdf

If you know any information about it , I would really appreciate it.

Thanks
Regards
Isaac T.

Re: GNU Radio on Raspberry Pi 4?

[Glen Langston]

Concerning Full Raspberry Pi OS software installed on a single Raspberry Pi 
image,
we’re encouraging high schools to use this installation document.
https://docs.google.com/document/d/1hfS7cRx3emlZz0sTs583zN8o-35nKtIej6BYMKCJLXY/edit?usp=sharing

The document includes the links to the OS and hardware to purchase.

Unfortunately this is a 3.7.13.4 Gnuradio release, as we’ve not had the strength
to get the SDRPlay software support working for newer gnuradio Releases.

Best regards, 

Glen

> On Dec 17, 2020, at 12:03 PM, Kyeong Su Shin  wrote:
> 
> To whom it may concern:
> 
> Just a tip: If you are building GNU Radio from the source, dependencies and 
> build procedures for Raspberry Pi is available at the GNU Radio Wiki. It 
> assumes that you are doing on-board compile.
> 
> See: https://wiki.gnuradio.org/index.php/InstallingGR#From_Source
> 
> 
> Regards,
> Kyeong Su Shin
> 보낸 사람: Albin Stigö  대신 Discuss-gnuradio 
> 
> 보낸 날짜: 2020년 12월 18일 금요일 오전 1:13
> 받는 사람: Kristoff ; GNURadio Discussion List 
> 
> 제목: Re: GNU Radio on Raspberry Pi 4?
>  
> There's no special configuration. Just install dependencies and build from 
> source. Put root on SSD or it will be very slow. Ubuntu 65bit is fine. In 
> general GNURadio is hell to build and get dependencies right, but in the end 
> it works well.
> 
> --Albin
> 
> On Thu, Dec 17, 2020, 16:37 Kristoff  wrote:
> Albin,
> 
> 
> Can you share your configuration for this? Do you need to set up 
> something special?
> Can you do this on standard ubuntu 64 bit (20.04LTS or 20.10) on a pi4b 
> or do you need another distro for this?
> 
> 
> I read somewhere opengl on the pi4 has not been released yes as it has 
> the pi4 has a more recent GPU.
> Or am I completely wrong?
> 
> 
> 73
> kristoff - ON1ARF
> 
> 
> On 17/12/2020 1:22 p.m., Albin Stigö wrote:
> > I suspect a lot of the graphics could run perfectly fine if they took 
> > advantage of the gpu better. A lot of the current rendering in 
> > GNURadio (and GQRX) is very cpu bound.
> >
> > I had a spectrum and waterfall running easily at 60fps on a pi3 by 
> > using opengl properly. Using vulkan on pi4 the sky is the limit.
> >
> > --Albin
> >
> > On Thu, Dec 17, 2020, 13:18 Marcus Müller  > > wrote:
> >
> > Can't stress this enough. Running a 32 bit Linux on a RPi 4 would be
> > like running Windows 98 on a modern PC and expecting top performance
> > from the CPU. You're not making use of the CPU you have, you're only
> > making use of a legacy mode that it still supports.
> >
> > Best regards,
> > Marcus
> >
> > On 17.12.20 10:53, Albin Stigö wrote:
> > > 64bit mode is most likely better because in addition to being
> > 64bit it
> > > enables additional cpu features (certain new instructions and
> > more SIMD
> > > NEON registers)
> > >
> > > On Thu, Dec 17, 2020, 10:36 jean-michel.fri...@femto-st.fr
> > 
> > >  > >
> >  > 
> > >  > >> wrote:
> > >
> > > The benchmark on volk/64 bit kernel v.s 32 bit Raspbian is at
> > > https://pubs.gnuradio.org/index.php/grcon/article/view/73/55
> > > 
> > > last page. I get 3 to 7-fold improvement by volk_config on a
> > dedicated
> > > toolchain for 64-bit CPU.
> > >
> > > JM
> > >
> > > --
> > > JM Friedt, FEMTO-ST Time & Frequency, 26 rue de l'Epitaphe,
> > 25000
> > > Besancon, France
> > >
> > > December 17, 2020 10:28 AM, "Kristoff"  > 
> > > >> wrote:
> > >
> > > > HI all,
> > > >
> > > > I also have a RPi4 (*).
> > > > Some follow-up question.
> > > >
> > > > What OS would be the best for this?
> > > > Would running 64 bit make a difference?
> > > >
> > > > I don't know to what degree this is related, but I did a
> > test running
> > > > WebGL (**) on that pi, and I got about 1/3 of the frames per
> > > second on
> > > > my RPi4 compared to my laptop (which only has a UHD
> > Graphics 630
> > > Mobile,
> > > > so not the  best or latest neither)
> > > > Is the GPU in the Pi4 good enough to run many GUI elements
> > in GNU
> > > Radio
> > > > at the same time?
> > > >
> > > > Kr.
> > > >
> > > > (*) RPi4B 8 GB, 120 SSD
> > > >
> > > > (*) https://webglsamples.org 
> > > >
> > > > On 16/12/2020 11:10 p.m., Dan Romanchik KB6NU wrote:
> > > 

Re: GNU Radio on Raspberry Pi 4?

[Dan Romanchik KB6NU]

I’m not sure how my version of GNU Radio was built. I got it in a 
distribution called [HamPi](https://sourceforge.net/projects/hampi/).


73! <—ham radio lingo for “best regards"

**Dan KB6NU**
CW Geek, Ham Radio Instructor
Author of the "No Nonsense" amateur radio license study guides
Read my ham radio blog at http://www.kb6nu.com


On 17 Dec 2020, at 12:03, Kyeong Su Shin wrote:

To whom it may concern:

Just a tip: If you are building GNU Radio from the source, 
dependencies and build procedures for Raspberry Pi is available at the 
GNU Radio Wiki. It assumes that you are doing on-board compile.


See: https://wiki.gnuradio.org/index.php/InstallingGR#From_Source


Regards,
Kyeong Su Shin

보낸 사람: Albin Stigö  대신 
Discuss-gnuradio 


보낸 날짜: 2020년 12월 18일 금요일 오전 1:13
받는 사람: Kristoff ; GNURadio Discussion List 


제목: Re: GNU Radio on Raspberry Pi 4?

There's no special configuration. Just install dependencies and build 
from source. Put root on SSD or it will be very slow. Ubuntu 65bit is 
fine. In general GNURadio is hell to build and get dependencies right, 
but in the end it works well.


--Albin

On Thu, Dec 17, 2020, 16:37 Kristoff 
mailto:krist...@skypro.be>> wrote:

Albin,


Can you share your configuration for this? Do you need to set up
something special?
Can you do this on standard ubuntu 64 bit (20.04LTS or 20.10) on a 
pi4b

or do you need another distro for this?


I read somewhere opengl on the pi4 has not been released yes as it has
the pi4 has a more recent GPU.
Or am I completely wrong?


73
kristoff - ON1ARF


On 17/12/2020 1:22 p.m., Albin Stigö wrote:

I suspect a lot of the graphics could run perfectly fine if they took
advantage of the gpu better. A lot of the current rendering in
GNURadio (and GQRX) is very cpu bound.

I had a spectrum and waterfall running easily at 60fps on a pi3 by
using opengl properly. Using vulkan on pi4 the sky is the limit.

--Albin

On Thu, Dec 17, 2020, 13:18 Marcus Müller 
mailto:muel...@kit.edu>

>> wrote:

Can't stress this enough. Running a 32 bit Linux on a RPi 4 would 
be
like running Windows 98 on a modern PC and expecting top 
performance
from the CPU. You're not making use of the CPU you have, you're 
only

making use of a legacy mode that it still supports.

Best regards,
Marcus

On 17.12.20 10:53, Albin Stigö wrote:
> 64bit mode is most likely better because in addition to being
64bit it
> enables additional cpu features (certain new instructions and
more SIMD
> NEON registers)
>
> On Thu, Dec 17, 2020, 10:36 
jean-michel.fri...@femto-st.fr


>
> 



>>
mailto:jean-michel.fri...@femto-st.fr>

>
> 


> The benchmark on volk/64 bit kernel v.s 32 bit Raspbian is 
at

> https://pubs.gnuradio.org/index.php/grcon/article/view/73/55
> 

> last page. I get 3 to 7-fold improvement by volk_config on 
a

dedicated
> toolchain for 64-bit CPU.
>
> JM
>
> --
> JM Friedt, FEMTO-ST Time & Frequency, 26 rue de l'Epitaphe,
25000
> Besancon, France
>
> December 17, 2020 10:28 AM, "Kristoff" 
mailto:krist...@skypro.be>

>
>  

> > HI all,
> >
> > I also have a RPi4 (*).
> > Some follow-up question.
> >
> > What OS would be the best for this?
> > Would running 64 bit make a difference?
> >
> > I don't know to what degree this is related, but I did a
test running
> > WebGL (**) on that pi, and I got about 1/3 of the frames 
per

> second on
> > my RPi4 compared to my laptop (which only has a UHD
Graphics 630
> Mobile,
> > so not the  best or latest neither)
> > Is the GPU in the Pi4 good enough to run many GUI 
elements

in GNU
> Radio
> > at the same time?
> >
> > Kr.
> >
> > (*) RPi4B 8 GB, 120 SSD
> >
> > (*) https://webglsamples.org 
> >
> > On 16/12/2020 11:10 p.m., Dan Romanchik KB6NU wrote:
> >

Project Call December 2020

[Martin Braun]

Hi all,

as usual, we will do our project call on this third Thursday of the
month. You can join us on twitch.tv/gnuradio, via Matrix
(https://chat.gnuradio.org), or IRC.

The call starts in 4 minutes.

Cheers,
Martin

[VOLK] Release v2.4.1

[Johannes Demel]

Hi everyone!

We have a new VOLK bugfix release! We are happy to announce VOLK v2.4.1! 
We want to thank all contributors. This release wouldn't have been 
possible without them.


Our v2.4.0 release introduced quite a lot of changes under the hood. 
With this bugfix release, we want to make sure that everything works as 
expected again.


You can find the release news on 
[libvolk.org](https://www.libvolk.org/category/news.html)


### Contributors

* A. Maitland Bottoms 
* Johannes Demel 
* Michael Dickens 
* Philip Balister 
* Ron Economos 
* Ryan Volz 


### Changes

* Build
- cpu_features CMake option
- Add cpu_features to static library build.
- Use static liborc-0.4 library for static library build.
- cmake: Detect if cpu_features submodule is present.

* Install
- Check for lib64 versus lib and set LIB_SUFFIX accordingly.

* CI
- Add CI test for static library build.

* Releases
- project: Include git submodules (i.e. cpu_features) in release 
tarball.

- scripts: Add GPG signature to release script

* Other
- readme: Update TravisCI status badge

Re: GNU Radio on Raspberry Pi 4?

[Kyeong Su Shin]

To whom it may concern:

Just a tip: If you are building GNU Radio from the source, dependencies and 
build procedures for Raspberry Pi is available at the GNU Radio Wiki. It 
assumes that you are doing on-board compile.

See: https://wiki.gnuradio.org/index.php/InstallingGR#From_Source


Regards,
Kyeong Su Shin

보낸 사람: Albin Stigö  대신 Discuss-gnuradio 

보낸 날짜: 2020년 12월 18일 금요일 오전 1:13
받는 사람: Kristoff ; GNURadio Discussion List 

제목: Re: GNU Radio on Raspberry Pi 4?

There's no special configuration. Just install dependencies and build from 
source. Put root on SSD or it will be very slow. Ubuntu 65bit is fine. In 
general GNURadio is hell to build and get dependencies right, but in the end it 
works well.

--Albin

On Thu, Dec 17, 2020, 16:37 Kristoff 
mailto:krist...@skypro.be>> wrote:
Albin,


Can you share your configuration for this? Do you need to set up
something special?
Can you do this on standard ubuntu 64 bit (20.04LTS or 20.10) on a pi4b
or do you need another distro for this?


I read somewhere opengl on the pi4 has not been released yes as it has
the pi4 has a more recent GPU.
Or am I completely wrong?


73
kristoff - ON1ARF


On 17/12/2020 1:22 p.m., Albin Stigö wrote:
> I suspect a lot of the graphics could run perfectly fine if they took
> advantage of the gpu better. A lot of the current rendering in
> GNURadio (and GQRX) is very cpu bound.
>
> I had a spectrum and waterfall running easily at 60fps on a pi3 by
> using opengl properly. Using vulkan on pi4 the sky is the limit.
>
> --Albin
>
> On Thu, Dec 17, 2020, 13:18 Marcus Müller 
> mailto:muel...@kit.edu>
> >> wrote:
>
> Can't stress this enough. Running a 32 bit Linux on a RPi 4 would be
> like running Windows 98 on a modern PC and expecting top performance
> from the CPU. You're not making use of the CPU you have, you're only
> making use of a legacy mode that it still supports.
>
> Best regards,
> Marcus
>
> On 17.12.20 10:53, Albin Stigö wrote:
> > 64bit mode is most likely better because in addition to being
> 64bit it
> > enables additional cpu features (certain new instructions and
> more SIMD
> > NEON registers)
> >
> > On Thu, Dec 17, 2020, 10:36 
> jean-michel.fri...@femto-st.fr
> 
> >
> > 
> 
> 
> >>
> mailto:jean-michel.fri...@femto-st.fr>
> 
> >
> > 
> 
> 
>   wrote:
> >
> > The benchmark on volk/64 bit kernel v.s 32 bit Raspbian is at
> > https://pubs.gnuradio.org/index.php/grcon/article/view/73/55
> > 
> > last page. I get 3 to 7-fold improvement by volk_config on a
> dedicated
> > toolchain for 64-bit CPU.
> >
> > JM
> >
> > --
> > JM Friedt, FEMTO-ST Time & Frequency, 26 rue de l'Epitaphe,
> 25000
> > Besancon, France
> >
> > December 17, 2020 10:28 AM, "Kristoff" 
> mailto:krist...@skypro.be>
> >
> >  
>  >
> > > HI all,
> > >
> > > I also have a RPi4 (*).
> > > Some follow-up question.
> > >
> > > What OS would be the best for this?
> > > Would running 64 bit make a difference?
> > >
> > > I don't know to what degree this is related, but I did a
> test running
> > > WebGL (**) on that pi, and I got about 1/3 of the frames per
> > second on
> > > my RPi4 compared to my laptop (which only has a UHD
> Graphics 630
> > Mobile,
> > > so not the  best or latest neither)
> > > Is the GPU in the Pi4 good enough to run many GUI elements
> in GNU
> > Radio
> > > at the same time?
> > >
> > > Kr.
> > >
> > > (*) RPi4B 8 GB, 120 SSD
> > >
> > > (*) https://webglsamples.org 
> > >
> > > On 16/12/2020 11:10 p.m., Dan Romanchik KB6NU wrote:
> > >
> > >> Has anyone successfully run GNU Radio on a Pi 4? I
> recently purchased
> > >> an RTL-SDR dongle and thought it would be fun to
> experiment a little
> > >> with GNU Radio and learn something about SDR.
> 

Re: GNU Radio on Raspberry Pi 4?

[Albin Stigö]

There's no special configuration. Just install dependencies and build from
source. Put root on SSD or it will be very slow. Ubuntu 65bit is fine. In
general GNURadio is hell to build and get dependencies right, but in the
end it works well.

--Albin

On Thu, Dec 17, 2020, 16:37 Kristoff  wrote:

> Albin,
>
>
> Can you share your configuration for this? Do you need to set up
> something special?
> Can you do this on standard ubuntu 64 bit (20.04LTS or 20.10) on a pi4b
> or do you need another distro for this?
>
>
> I read somewhere opengl on the pi4 has not been released yes as it has
> the pi4 has a more recent GPU.
> Or am I completely wrong?
>
>
> 73
> kristoff - ON1ARF
>
>
> On 17/12/2020 1:22 p.m., Albin Stigö wrote:
> > I suspect a lot of the graphics could run perfectly fine if they took
> > advantage of the gpu better. A lot of the current rendering in
> > GNURadio (and GQRX) is very cpu bound.
> >
> > I had a spectrum and waterfall running easily at 60fps on a pi3 by
> > using opengl properly. Using vulkan on pi4 the sky is the limit.
> >
> > --Albin
> >
> > On Thu, Dec 17, 2020, 13:18 Marcus Müller  > > wrote:
> >
> > Can't stress this enough. Running a 32 bit Linux on a RPi 4 would be
> > like running Windows 98 on a modern PC and expecting top performance
> > from the CPU. You're not making use of the CPU you have, you're only
> > making use of a legacy mode that it still supports.
> >
> > Best regards,
> > Marcus
> >
> > On 17.12.20 10:53, Albin Stigö wrote:
> > > 64bit mode is most likely better because in addition to being
> > 64bit it
> > > enables additional cpu features (certain new instructions and
> > more SIMD
> > > NEON registers)
> > >
> > > On Thu, Dec 17, 2020, 10:36 jean-michel.fri...@femto-st.fr
> > 
> > >  > >
> >  > 
> > >  > >> wrote:
> > >
> > > The benchmark on volk/64 bit kernel v.s 32 bit Raspbian is at
> > > https://pubs.gnuradio.org/index.php/grcon/article/view/73/55
> > > 
> > > last page. I get 3 to 7-fold improvement by volk_config on a
> > dedicated
> > > toolchain for 64-bit CPU.
> > >
> > > JM
> > >
> > > --
> > > JM Friedt, FEMTO-ST Time & Frequency, 26 rue de l'Epitaphe,
> > 25000
> > > Besancon, France
> > >
> > > December 17, 2020 10:28 AM, "Kristoff"  > 
> > > >>
> wrote:
> > >
> > > > HI all,
> > > >
> > > > I also have a RPi4 (*).
> > > > Some follow-up question.
> > > >
> > > > What OS would be the best for this?
> > > > Would running 64 bit make a difference?
> > > >
> > > > I don't know to what degree this is related, but I did a
> > test running
> > > > WebGL (**) on that pi, and I got about 1/3 of the frames per
> > > second on
> > > > my RPi4 compared to my laptop (which only has a UHD
> > Graphics 630
> > > Mobile,
> > > > so not the  best or latest neither)
> > > > Is the GPU in the Pi4 good enough to run many GUI elements
> > in GNU
> > > Radio
> > > > at the same time?
> > > >
> > > > Kr.
> > > >
> > > > (*) RPi4B 8 GB, 120 SSD
> > > >
> > > > (*) https://webglsamples.org 
> > > >
> > > > On 16/12/2020 11:10 p.m., Dan Romanchik KB6NU wrote:
> > > >
> > > >> Has anyone successfully run GNU Radio on a Pi 4? I
> > recently purchased
> > > >> an RTL-SDR dongle and thought it would be fun to
> > experiment a little
> > > >> with GNU Radio and learn something about SDR.
> > > >>
> > > >> A couple of days ago, I fired up GNU Radio, and after
> > having some
> > > >> trouble figuring out how to get the audio sink to talk to
> > the Pi, I
> > > >> downloaded VE6EY's FM receiver flow graph. The flow graph
> > runs, but
> > > >> the Pi 4 just doesn't seem to have enough horsepower to
> > run it in
> > > real
> > > >> time. The audio is slow and distorted.
> > > >>
> > > >> Thinking that it might be the WX widgets slowing down the
> > program, I
> > > >> first deleted the FFT display widgets, then converted the
> > WX slider
> > > >> controls to QT range controls. Neither had any effect on
> > how well the
> > > >> flow graph ran.
> > > >>
> > > >> GQRX and 

Re: GNU Radio on Raspberry Pi 4?

[Kristoff]

Albin,


Can you share your configuration for this? Do you need to set up 
something special?
Can you do this on standard ubuntu 64 bit (20.04LTS or 20.10) on a pi4b 
or do you need another distro for this?



I read somewhere opengl on the pi4 has not been released yes as it has 
the pi4 has a more recent GPU.

Or am I completely wrong?


73
kristoff - ON1ARF


On 17/12/2020 1:22 p.m., Albin Stigö wrote:
I suspect a lot of the graphics could run perfectly fine if they took 
advantage of the gpu better. A lot of the current rendering in 
GNURadio (and GQRX) is very cpu bound.


I had a spectrum and waterfall running easily at 60fps on a pi3 by 
using opengl properly. Using vulkan on pi4 the sky is the limit.


--Albin

On Thu, Dec 17, 2020, 13:18 Marcus Müller > wrote:


Can't stress this enough. Running a 32 bit Linux on a RPi 4 would be
like running Windows 98 on a modern PC and expecting top performance
from the CPU. You're not making use of the CPU you have, you're only
making use of a legacy mode that it still supports.

Best regards,
Marcus

On 17.12.20 10:53, Albin Stigö wrote:
> 64bit mode is most likely better because in addition to being
64bit it
> enables additional cpu features (certain new instructions and
more SIMD
> NEON registers)
>
> On Thu, Dec 17, 2020, 10:36 jean-michel.fri...@femto-st.fr

> >
mailto:jean-michel.fri...@femto-st.fr>
> >> wrote:
>
>     The benchmark on volk/64 bit kernel v.s 32 bit Raspbian is at
> https://pubs.gnuradio.org/index.php/grcon/article/view/73/55
>     
>     last page. I get 3 to 7-fold improvement by volk_config on a
dedicated
>     toolchain for 64-bit CPU.
>
>     JM
>
>     --
>     JM Friedt, FEMTO-ST Time & Frequency, 26 rue de l'Epitaphe,
25000
>     Besancon, France
>
>     December 17, 2020 10:28 AM, "Kristoff" mailto:krist...@skypro.be>
>     >> wrote:
>
>     > HI all,
>     >
>     > I also have a RPi4 (*).
>     > Some follow-up question.
>     >
>     > What OS would be the best for this?
>     > Would running 64 bit make a difference?
>     >
>     > I don't know to what degree this is related, but I did a
test running
>     > WebGL (**) on that pi, and I got about 1/3 of the frames per
>     second on
>     > my RPi4 compared to my laptop (which only has a UHD
Graphics 630
>     Mobile,
>     > so not the  best or latest neither)
>     > Is the GPU in the Pi4 good enough to run many GUI elements
in GNU
>     Radio
>     > at the same time?
>     >
>     > Kr.
>     >
>     > (*) RPi4B 8 GB, 120 SSD
>     >
>     > (*) https://webglsamples.org 
>     >
>     > On 16/12/2020 11:10 p.m., Dan Romanchik KB6NU wrote:
>     >
>     >> Has anyone successfully run GNU Radio on a Pi 4? I
recently purchased
>     >> an RTL-SDR dongle and thought it would be fun to
experiment a little
>     >> with GNU Radio and learn something about SDR.
>     >>
>     >> A couple of days ago, I fired up GNU Radio, and after
having some
>     >> trouble figuring out how to get the audio sink to talk to
the Pi, I
>     >> downloaded VE6EY's FM receiver flow graph. The flow graph
runs, but
>     >> the Pi 4 just doesn't seem to have enough horsepower to
run it in
>     real
>     >> time. The audio is slow and distorted.
>     >>
>     >> Thinking that it might be the WX widgets slowing down the
program, I
>     >> first deleted the FFT display widgets, then converted the
WX slider
>     >> controls to QT range controls. Neither had any effect on
how well the
>     >> flow graph ran.
>     >>
>     >> GQRX and CubicSDDR seem to work just fine. At least with
both of
>     them,
>     >> I'm able to receive FM broadcast and NOAA weather
station. But, maybe
>     >> the PI4 just doesn't have enough horsepower to run GNU
Radio? If so,
>     >> that's kind of disappointing.
>     >>
>     >> 73! <—ham radio lingo for “best regards"
>     >>
>     >> *Dan KB6NU*
>     >> CW Geek, Ham Radio Instructor
>     >> Author of the "No Nonsense" amateur radio license study
guides
>     >> Read my ham radio blog at http://www.kb6nu.com

>

Changes to contribution guidelines

[Martin Braun]

Hi all,

before we finish this year, we do want to announce one more change in
how we accept contributions into the GNU Radio code base.

One thing that we take very seriously is the whole business of license
compliance. GNU Radio is GPLv3-licensed, and that's not going to change.
But also, we have to make sure that code upstreamed is legally OK to go
into our branches (that usually means it's not copyrighted elsewhere,
etc.). Since we can't do a thorough check for every submission (even if
we wanted to, we don't know and can't know the origin of all the code),
we put the burden onto the developer. So far, they agree to this by
signing the CLA that so many of you have signed.

The CLA signing process has been criticized as being overly complex and
a barrier for entry to contributing to GNU Radio. We agree with this
statement.

Moving forward, we will no longer require users to have a CLA filed.
Instead, we will require signing a DCO (Developer's Certificate of
Origin). You can do that by using the `git commit -s` command line
argument. Our updated contributing guide has more details
(https://github.com/gnuradio/gnuradio/blob/master/CONTRIBUTING.md#dco-signed).

Since there is no copyright assignment in the DCO, this means that new
components of GNU Radio can be upstreamed without copyright assignment.
The copyright remains with the author or their company.

We hope this means that new contributors are more likely to upstream
their code to GNU Radio, while existing contributors hopefully won't be
upset by amending '-s' to their git commits.

We're happy to discuss this change, but I suggest reading a blog article
by Bradley Kuhn on the subject (Bradley is unrelated to GNU Radio, but
this particular article happens to also express the opinions of the GNU
Radio leadership):
https://sfconservancy.org/blog/2014/jun/09/do-not-need-cla/

Maybe this will motivate folks to do some Christmas hacking!

Cheers,
Martin

Re: GNU Radio on Raspberry Pi 4?

[Albin Stigö]

I suspect a lot of the graphics could run perfectly fine if they took
advantage of the gpu better. A lot of the current rendering in GNURadio
(and GQRX) is very cpu bound.

I had a spectrum and waterfall running easily at 60fps on a pi3 by using
opengl properly. Using vulkan on pi4 the sky is the limit.

--Albin

On Thu, Dec 17, 2020, 13:18 Marcus Müller  wrote:

> Can't stress this enough. Running a 32 bit Linux on a RPi 4 would be
> like running Windows 98 on a modern PC and expecting top performance
> from the CPU. You're not making use of the CPU you have, you're only
> making use of a legacy mode that it still supports.
>
> Best regards,
> Marcus
>
> On 17.12.20 10:53, Albin Stigö wrote:
> > 64bit mode is most likely better because in addition to being 64bit it
> > enables additional cpu features (certain new instructions and more SIMD
> > NEON registers)
> >
> > On Thu, Dec 17, 2020, 10:36 jean-michel.fri...@femto-st.fr
> >   > > wrote:
> >
> > The benchmark on volk/64 bit kernel v.s 32 bit Raspbian is at
> > https://pubs.gnuradio.org/index.php/grcon/article/view/73/55
> > 
> > last page. I get 3 to 7-fold improvement by volk_config on a
> dedicated
> > toolchain for 64-bit CPU.
> >
> > JM
> >
> > --
> > JM Friedt, FEMTO-ST Time & Frequency, 26 rue de l'Epitaphe, 25000
> > Besancon, France
> >
> > December 17, 2020 10:28 AM, "Kristoff"  > > wrote:
> >
> > > HI all,
> > >
> > > I also have a RPi4 (*).
> > > Some follow-up question.
> > >
> > > What OS would be the best for this?
> > > Would running 64 bit make a difference?
> > >
> > > I don't know to what degree this is related, but I did a test
> running
> > > WebGL (**) on that pi, and I got about 1/3 of the frames per
> > second on
> > > my RPi4 compared to my laptop (which only has a UHD Graphics 630
> > Mobile,
> > > so not the  best or latest neither)
> > > Is the GPU in the Pi4 good enough to run many GUI elements in GNU
> > Radio
> > > at the same time?
> > >
> > > Kr.
> > >
> > > (*) RPi4B 8 GB, 120 SSD
> > >
> > > (*) https://webglsamples.org 
> > >
> > > On 16/12/2020 11:10 p.m., Dan Romanchik KB6NU wrote:
> > >
> > >> Has anyone successfully run GNU Radio on a Pi 4? I recently
> purchased
> > >> an RTL-SDR dongle and thought it would be fun to experiment a
> little
> > >> with GNU Radio and learn something about SDR.
> > >>
> > >> A couple of days ago, I fired up GNU Radio, and after having some
> > >> trouble figuring out how to get the audio sink to talk to the Pi,
> I
> > >> downloaded VE6EY's FM receiver flow graph. The flow graph runs,
> but
> > >> the Pi 4 just doesn't seem to have enough horsepower to run it in
> > real
> > >> time. The audio is slow and distorted.
> > >>
> > >> Thinking that it might be the WX widgets slowing down the
> program, I
> > >> first deleted the FFT display widgets, then converted the WX
> slider
> > >> controls to QT range controls. Neither had any effect on how well
> the
> > >> flow graph ran.
> > >>
> > >> GQRX and CubicSDDR seem to work just fine. At least with both of
> > them,
> > >> I'm able to receive FM broadcast and NOAA weather station. But,
> maybe
> > >> the PI4 just doesn't have enough horsepower to run GNU Radio? If
> so,
> > >> that's kind of disappointing.
> > >>
> > >> 73! <—ham radio lingo for “best regards"
> > >>
> > >> *Dan KB6NU*
> > >> CW Geek, Ham Radio Instructor
> > >> Author of the "No Nonsense" amateur radio license study guides
> > >> Read my ham radio blog at http://www.kb6nu.com <
> http://www.kb6nu.com>
> >
>
>

Re: GNU Radio on Raspberry Pi 4?

[Marcus Müller]

Can't stress this enough. Running a 32 bit Linux on a RPi 4 would be
like running Windows 98 on a modern PC and expecting top performance
from the CPU. You're not making use of the CPU you have, you're only
making use of a legacy mode that it still supports.

Best regards,
Marcus

On 17.12.20 10:53, Albin Stigö wrote:
> 64bit mode is most likely better because in addition to being 64bit it
> enables additional cpu features (certain new instructions and more SIMD
> NEON registers)
> 
> On Thu, Dec 17, 2020, 10:36 jean-michel.fri...@femto-st.fr
>   > wrote:
> 
> The benchmark on volk/64 bit kernel v.s 32 bit Raspbian is at
> https://pubs.gnuradio.org/index.php/grcon/article/view/73/55
> 
> last page. I get 3 to 7-fold improvement by volk_config on a dedicated
> toolchain for 64-bit CPU.
> 
> JM
> 
> --
> JM Friedt, FEMTO-ST Time & Frequency, 26 rue de l'Epitaphe, 25000
> Besancon, France
> 
> December 17, 2020 10:28 AM, "Kristoff"  > wrote:
> 
> > HI all,
> >
> > I also have a RPi4 (*).
> > Some follow-up question.
> >
> > What OS would be the best for this?
> > Would running 64 bit make a difference?
> >
> > I don't know to what degree this is related, but I did a test running
> > WebGL (**) on that pi, and I got about 1/3 of the frames per
> second on
> > my RPi4 compared to my laptop (which only has a UHD Graphics 630
> Mobile,
> > so not the  best or latest neither)
> > Is the GPU in the Pi4 good enough to run many GUI elements in GNU
> Radio
> > at the same time?
> >
> > Kr.
> >
> > (*) RPi4B 8 GB, 120 SSD
> >
> > (*) https://webglsamples.org 
> >
> > On 16/12/2020 11:10 p.m., Dan Romanchik KB6NU wrote:
> >
> >> Has anyone successfully run GNU Radio on a Pi 4? I recently purchased
> >> an RTL-SDR dongle and thought it would be fun to experiment a little
> >> with GNU Radio and learn something about SDR.
> >>
> >> A couple of days ago, I fired up GNU Radio, and after having some
> >> trouble figuring out how to get the audio sink to talk to the Pi, I
> >> downloaded VE6EY's FM receiver flow graph. The flow graph runs, but
> >> the Pi 4 just doesn't seem to have enough horsepower to run it in
> real
> >> time. The audio is slow and distorted.
> >>
> >> Thinking that it might be the WX widgets slowing down the program, I
> >> first deleted the FFT display widgets, then converted the WX slider
> >> controls to QT range controls. Neither had any effect on how well the
> >> flow graph ran.
> >>
> >> GQRX and CubicSDDR seem to work just fine. At least with both of
> them,
> >> I'm able to receive FM broadcast and NOAA weather station. But, maybe
> >> the PI4 just doesn't have enough horsepower to run GNU Radio? If so,
> >> that's kind of disappointing.
> >>
> >> 73! <—ham radio lingo for “best regards"
> >>
> >> *Dan KB6NU*
> >> CW Geek, Ham Radio Instructor
> >> Author of the "No Nonsense" amateur radio license study guides
> >> Read my ham radio blog at http://www.kb6nu.com 
> 



smime.p7s
Description: S/MIME Cryptographic Signature

Re: GNU Radio on Raspberry Pi 4?

[Albin Stigö]

64bit mode is most likely better because in addition to being 64bit it
enables additional cpu features (certain new instructions and more SIMD
NEON registers)

On Thu, Dec 17, 2020, 10:36 jean-michel.fri...@femto-st.fr <
jean-michel.fri...@femto-st.fr> wrote:

> The benchmark on volk/64 bit kernel v.s 32 bit Raspbian is at
> https://pubs.gnuradio.org/index.php/grcon/article/view/73/55
> last page. I get 3 to 7-fold improvement by volk_config on a dedicated
> toolchain for 64-bit CPU.
>
> JM
>
> --
> JM Friedt, FEMTO-ST Time & Frequency, 26 rue de l'Epitaphe, 25000
> Besancon, France
>
> December 17, 2020 10:28 AM, "Kristoff"  wrote:
>
> > HI all,
> >
> > I also have a RPi4 (*).
> > Some follow-up question.
> >
> > What OS would be the best for this?
> > Would running 64 bit make a difference?
> >
> > I don't know to what degree this is related, but I did a test running
> > WebGL (**) on that pi, and I got about 1/3 of the frames per second on
> > my RPi4 compared to my laptop (which only has a UHD Graphics 630 Mobile,
> > so not the  best or latest neither)
> > Is the GPU in the Pi4 good enough to run many GUI elements in GNU Radio
> > at the same time?
> >
> > Kr.
> >
> > (*) RPi4B 8 GB, 120 SSD
> >
> > (*) https://webglsamples.org
> >
> > On 16/12/2020 11:10 p.m., Dan Romanchik KB6NU wrote:
> >
> >> Has anyone successfully run GNU Radio on a Pi 4? I recently purchased
> >> an RTL-SDR dongle and thought it would be fun to experiment a little
> >> with GNU Radio and learn something about SDR.
> >>
> >> A couple of days ago, I fired up GNU Radio, and after having some
> >> trouble figuring out how to get the audio sink to talk to the Pi, I
> >> downloaded VE6EY's FM receiver flow graph. The flow graph runs, but
> >> the Pi 4 just doesn't seem to have enough horsepower to run it in real
> >> time. The audio is slow and distorted.
> >>
> >> Thinking that it might be the WX widgets slowing down the program, I
> >> first deleted the FFT display widgets, then converted the WX slider
> >> controls to QT range controls. Neither had any effect on how well the
> >> flow graph ran.
> >>
> >> GQRX and CubicSDDR seem to work just fine. At least with both of them,
> >> I'm able to receive FM broadcast and NOAA weather station. But, maybe
> >> the PI4 just doesn't have enough horsepower to run GNU Radio? If so,
> >> that's kind of disappointing.
> >>
> >> 73! <—ham radio lingo for “best regards"
> >>
> >> *Dan KB6NU*
> >> CW Geek, Ham Radio Instructor
> >> Author of the "No Nonsense" amateur radio license study guides
> >> Read my ham radio blog at http://www.kb6nu.com
>
>

Re: GNU Radio on Raspberry Pi 4?

[jean-michel.fri...@femto-st.fr]

The benchmark on volk/64 bit kernel v.s 32 bit Raspbian is at 
https://pubs.gnuradio.org/index.php/grcon/article/view/73/55
last page. I get 3 to 7-fold improvement by volk_config on a dedicated
toolchain for 64-bit CPU.

JM

--
JM Friedt, FEMTO-ST Time & Frequency, 26 rue de l'Epitaphe, 25000 Besancon, 
France

December 17, 2020 10:28 AM, "Kristoff"  wrote:

> HI all,
> 
> I also have a RPi4 (*).
> Some follow-up question.
> 
> What OS would be the best for this?
> Would running 64 bit make a difference?
> 
> I don't know to what degree this is related, but I did a test running 
> WebGL (**) on that pi, and I got about 1/3 of the frames per second on 
> my RPi4 compared to my laptop (which only has a UHD Graphics 630 Mobile, 
> so not the  best or latest neither)
> Is the GPU in the Pi4 good enough to run many GUI elements in GNU Radio 
> at the same time?
> 
> Kr.
> 
> (*) RPi4B 8 GB, 120 SSD
> 
> (*) https://webglsamples.org
> 
> On 16/12/2020 11:10 p.m., Dan Romanchik KB6NU wrote:
> 
>> Has anyone successfully run GNU Radio on a Pi 4? I recently purchased
>> an RTL-SDR dongle and thought it would be fun to experiment a little
>> with GNU Radio and learn something about SDR.
>> 
>> A couple of days ago, I fired up GNU Radio, and after having some
>> trouble figuring out how to get the audio sink to talk to the Pi, I
>> downloaded VE6EY's FM receiver flow graph. The flow graph runs, but
>> the Pi 4 just doesn't seem to have enough horsepower to run it in real
>> time. The audio is slow and distorted.
>> 
>> Thinking that it might be the WX widgets slowing down the program, I
>> first deleted the FFT display widgets, then converted the WX slider
>> controls to QT range controls. Neither had any effect on how well the
>> flow graph ran.
>> 
>> GQRX and CubicSDDR seem to work just fine. At least with both of them,
>> I'm able to receive FM broadcast and NOAA weather station. But, maybe
>> the PI4 just doesn't have enough horsepower to run GNU Radio? If so,
>> that's kind of disappointing.
>> 
>> 73! <—ham radio lingo for “best regards"
>> 
>> *Dan KB6NU*
>> CW Geek, Ham Radio Instructor
>> Author of the "No Nonsense" amateur radio license study guides
>> Read my ham radio blog at http://www.kb6nu.com

Re: GNU Radio on Raspberry Pi 4?

[Kristoff]

HI all,

I also have a RPi4 (*).
Some follow-up question.

What OS would be the best for this?
Would running 64 bit make a difference?

I don't know to what degree this is related, but I did a test running 
WebGL (**) on that pi, and I got about 1/3 of the frames per second on 
my RPi4 compared to my laptop (which only has a UHD Graphics 630 Mobile, 
so not the  best or latest neither)
Is the GPU in the Pi4 good enough to run many GUI elements in GNU Radio 
at the same time?



Kr.


(*) RPi4B 8 GB, 120 SSD

(*) https://webglsamples.org/


On 16/12/2020 11:10 p.m., Dan Romanchik KB6NU wrote:


Has anyone successfully run GNU Radio on a Pi 4? I recently purchased 
an RTL-SDR dongle and thought it would be fun to experiment a little 
with GNU Radio and learn something about SDR.


A couple of days ago, I fired up GNU Radio, and after having some 
trouble figuring out how to get the audio sink to talk to the Pi, I 
downloaded VE6EY's FM receiver flow graph. The flow graph runs, but 
the Pi 4 just doesn't seem to have enough horsepower to run it in real 
time. The audio is slow and distorted.


Thinking that it might be the WX widgets slowing down the program, I 
first deleted the FFT display widgets, then converted the WX slider 
controls to QT range controls. Neither had any effect on how well the 
flow graph ran.


GQRX and CubicSDDR seem to work just fine. At least with both of them, 
I'm able to receive FM broadcast and NOAA weather station. But, maybe 
the PI4 just doesn't have enough horsepower to run GNU Radio? If so, 
that's kind of disappointing.


73! <—ham radio lingo for “best regards"

*Dan KB6NU*
CW Geek, Ham Radio Instructor
Author of the "No Nonsense" amateur radio license study guides
Read my ham radio blog at http://www.kb6nu.com