On Monday 12 February 2007 17:54, Jim Campbell wrote: > Hi, > Curtis has already hinted as to how the following may be done with his > "remote" FDM. > To my mind flightgear can be broken down into distinct plugin > "modules". There is the FDM, the "external world" visualisation,the > cockpit input and output (ie joystick,pedals,switches and displays) and > possibly a motion system. These can be interconnected with some inter > process communication scheme. All of the modules could be run on a SMP > hardware (e.g dual dual-core cpus) or on separate computers. There has > been some discussion on multi-threading which would handle the first > (via shared memory IPC perhaps) but without an operating system that > can migrate threads to other networked processors then I think a more > flexible approach may be "self-contained" modules communicating by > passing "properties" over TCP. The "remote" FDM is already a > possibility and there is an example of a remote joystick but how easy > would it be to break up the rest of flightgear? Any ideas anyone? > cheers > Jim
I too think that this would be the best approach for making FG MPP compatible. The greatest cpu hog, so I believe, is the graphics subsystem but even though the other subsystems don't require as much processing power they are still limited in the resources they get. For example, while I was doing a couple of tests for what appears to be an A/P problem I noticed that the rate of the controllers were varying even though I'd specified a <Ts> period. This is certainly going to result in some unpredictable behaviour across different systems and I wouldn't be surprised if some of the other subsystems are equally limited in their rates. LeeE ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier. Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
