Search found 16 matches: fdm interleaved

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Re: Nasal must go

... - it is this that is causing stuttering, and that requires the FDM/AP to be running carefully interleaved, and it is also this that means that Nasal code may impact/affect not only the ...
by Hooray
Sun Mar 19, 2017 10:05 am
 
Forum: Nasal
Topic: Nasal must go
Replies: 85
Views: 17984

Re: FGPython an propose for Python as an nasal alternative

... a new SGEventMgr instance of the event manager and hook it up to be interleaved with the FDM/AP to run interleaved - while you probably don't want to do that, you may still a few more ...
by Hooray
Sat Feb 06, 2016 4:12 pm
 
Forum: New features
Topic: FGPython an propose for Python as an nasal alternative
Replies: 253
Views: 71173

Re: interpolate() locks autopilot?

... other subsystems. In addition, there are special subsystems like the FDM, which are running FDM-coupled, i.e. interleaved, several times per timestep (typically 120 times) the whole notion of "processes" ...
by Hooray
Tue Jan 05, 2016 8:26 pm
 
Forum: Aircraft
Topic: interpolate() locks autopilot?
Replies: 2
Views: 921

Re: FGPython an propose for Python as an nasal alternative

... the ->update(double dt) loop of each SGSubsystem/Mgr instance (think fdm, audio, nasal etc) - but there are still a handful of pseudo-subsystems ... behind the scenes in background threads (mainly in simgear), or are interleaved with the FDM. I know that, just look under the hood of the engine ...
by abassign
Wed Dec 30, 2015 11:21 pm
 
Forum: New features
Topic: FGPython an propose for Python as an nasal alternative
Replies: 253
Views: 71173

Re: FGPython an propose for Python as an nasal alternative

... the ->update(double dt) loop of each SGSubsystem/Mgr instance (think fdm, audio, nasal etc) - but there are still a handful of pseudo-subsystems ... behind the scenes in background threads (mainly in simgear), or are interleaved with the FDM. So I think you could contribute valuable feedback ...
by Hooray
Wed Dec 30, 2015 10:15 pm
 
Forum: New features
Topic: FGPython an propose for Python as an nasal alternative
Replies: 253
Views: 71173

Re: Optimization (a metaphor)

... loop, where only parts are threaded (think sound), with others running interleaved (FDM/AP). If this metaphor could be reviewed/edited accordingly, we could point people to the ...
by Hooray
Thu Nov 26, 2015 3:28 pm
 
Forum: New features
Topic: Optimization (a metaphor)
Replies: 19
Views: 3526

Re: FG 64bit & Linux dependencies

... also single-threaded, which includes recent additions like Canvas. The FDM itself is also a singleton by design while also being strictly single-threaded, ... non-deterministic for the other subsystems that are not FDM-interleaved. To learn more, see: http://forum.flightgear.org/viewtopic.php?f=18&t=15755&p=153298 ...
by Hooray
Thu Apr 02, 2015 8:06 pm
 
Forum: Linux
Topic: FG 64bit & Linux dependencies
Replies: 2
Views: 844

Re: Low generic output frequency

... rate used by FlightGear ⋅  /sim/model-hz - determines the FDM rate (some subsystems run interleaved with the FDM, e.g. the AP) ⋅  /sim/speed-up - determines FlightGear's ...
by Hooray
Sat Jul 05, 2014 4:32 pm
 
Forum: Interfacing
Topic: Low generic output frequency
Replies: 6
Views: 2412

Re: Low generic output frequency

... a lot, and it would never be steady either, because all I/O is running interleaved with the main loop, i.e. with other subsystems. Unfortunately, ... Philosopher said, you /may/ be able to work around this by using an FDM-coupled subsystem,or by interleaving your I/O subsystem with the FDM, ...
by Hooray
Fri Jul 04, 2014 12:56 am
 
Forum: Interfacing
Topic: Low generic output frequency
Replies: 6
Views: 2412

Re: How is JSBSim incorporated into FG?

JSBSim's source tree is directly copied into FlightGear. FlightGear FDMs use an FDM-agnostic abstraction layer that handles the differences between ... At runtime, JSBSim is updated in an interleaved fashion, along with the AP system, which means that typically ...
by Hooray
Sat Mar 08, 2014 3:10 pm
 
Forum: Flight dynamics model
Topic: How is JSBSim incorporated into FG?
Replies: 4
Views: 1955

Re: Faster update on /fdm/jsbsim/velocities properties

... you be a bit more specific, maybe I am misunderstanding - but actually FDM and AP properties are updated at a higher rate than the other properties, ... To learn more about how FDM/AP execution are interleaved during initialization, see this thread: http://flightgear.org/forums/viewtopic.php?f=46&t=17069#p164409 ...
by Hooray
Mon Jul 29, 2013 1:18 pm
 
Forum: Flight dynamics model
Topic: Faster update on /fdm/jsbsim/velocities properties
Replies: 8
Views: 1622

Re: Actual programming language for autopilot implementation

... discussion should provide all the pointers to run the Nasal subsystem interleaved with the FDM/AP systems, which should not be too difficult in my opinion. You really only need to take ...
by Hooray
Thu Aug 16, 2012 4:02 pm
 
Forum: Autopilot and route manager
Topic: Actual programming language for autopilot implementation?
Replies: 19
Views: 7299

Re: Actual programming language for autopilot implementation

... discussion should provide all the pointers to run the Nasal subsystem interleaved with the FDM/AP systems, which should not be too difficult in my opinion. You really only need to take ...
by Hooray
Wed Aug 08, 2012 9:33 am
 
Forum: Autopilot and route manager
Topic: Actual programming language for autopilot implementation?
Replies: 19
Views: 7299

Re: Actual programming language for autopilot implementation

That would require interleaving the execution of your code with the FDM, that is for example done with the autopilot system and some instruments. ... not a problem, then one could just as well run another Nasal interpreter interleaved with the FDM/AP subsystems. While that would be fairly "easy", ...
by Hooray
Fri Jul 27, 2012 1:17 pm
 
Forum: Autopilot and route manager
Topic: Actual programming language for autopilot implementation?
Replies: 19
Views: 7299
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