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Re: Latency Manager from GRCON2019

From: Derek Kozel
Subject: Re: Latency Manager from GRCON2019
Date: Sat, 7 Nov 2020 15:24:12 +0000
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0

Hi Fabien,

The blocks were built for use with the development version of GNU Radio for a year ago, and as the OOT name states it's very much a work in progress. The blocks function but I haven't updated them for the newest development changes, nor have they been tested for actual 3.8 release versions.

I do think they'll likely work on 3.8, please let me know how it goes. I'll update them for 3.9 officially sometime soon and release the repository in a more maintainable form (and better name).


On 07/11/2020 00:57, Fabien PELLET wrote:
Hi Cinaed,

Thanks a lot. I will try this.

Best regards,


Le 07/11/2020 à 00:32, Cinaed Simson a écrit :
Hi Fabian - the CMakeLists.txt file in the top directory contains the following line:

   find_package(Gnuradio "3.9" REQUIRED)

If I change the version from 3.9 to 3.8, and

  git checkout maint-3.8

it builds and passes

  make test

I haven't installed it or tested it.

But it does generate


in the build/swig  directory.

-- Cinaed

On 11/6/20 1:57 PM, Fabien PELLET wrote:

The problem is that when I try to compile the module with 3.8 installed, the CMAKE complains that it can't find 3.9.

When 3.9 is installed, the CMAKE complains that GRSwig is missing so I'm a little lost if swig is not used...

Best regards,


Le 06/11/2020 à 22:35, Volker Schroer a écrit :
Hello !
Meanwhile gnuradio does not use swig but pybind.
If your OOT requires swig you have to go back to 3.8

-- Volker, dl1ksv

Am 06.11.20 um 22:31 schrieb Fabien PELLET:

I'm trying to compile the project OOT of latency manager of Matt ETTUS
from he presents at the GRCON2019.

For that I built from source GNURadio to get 3.9 version successfully
but I can't compile the project provided here :

The CMAKE fails and tell that it can't find GRSwig. I'm on Ubuntu 20.04.

Thanks for any help or suggestions.

Best regards,


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