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Re: [certi-dev] Run CERTI RTI in connectionless mode?


From: Eric Noulard
Subject: Re: [certi-dev] Run CERTI RTI in connectionless mode?
Date: Thu, 16 Aug 2018 12:07:01 +0200



Le jeu. 16 août 2018 à 11:02, Jean-Baptiste Chaudron <address@hidden> a écrit :
Hello,

CERTI is currently only using TCP sockets.
For UDP, different implementation efforts have been done since the early days of CERTI but currently it is not working.
I have created a ticket for this purpose: https://savannah.nongnu.org/bugs/?54166

Also, the RTIG process would be still needed to handle the communication between federates even in UDP mode.
Changing this for a fully distributed (only RTIA) would be a lot of efforts due to objects/attributes and interactions handling.

You'll loose one extra CERTI specific optimization too. It is called NULL MESSAGE PRIME protocol
http://git.savannah.nongnu.org/cgit/certi.git/tree/CMakeLists.txt#n115
 
which is an optimization of the classical CMB null message protocol taking advantage of the RTIG central RTI component status.
see:
"HLA high performance and real-time simulation studies with CERTI
October 2011
Conference: 25th European Simulation and Modelling Conference- ESM'2011
ConferenceEuropean Simulation and Modelling Conference"
https://www.researchgate.net/publication/228573080_Design_and_modeling_techniques_for_real-time_RTI_time_management

note however that AFAIR "NULL MESSAGE PRIME" is disabled by default, you'll have to activate it at compile-time (CMake option)
to get it active.

--
Eric

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