labview, How do I synchronize two processes on two different PC's ?

How do I synchronize two processes on two different PC's ?

Author	Message
Frank Rizz #1 / 8	How do I synchronize two processes on two different PC's ? I have a master and slave computer with a vi running on each, periodically these processes will need to be synchronized. If the processes were running as separate threads on the same PC, I know could use the labview rendezvous technology to do this. But because the processes are on separate PCs, it is not obvious to me how to accomplish the sychronization. Thank you for your consideration of my question.
Wed, 10 Nov 2004 01:53:09 GMT

MattBradle #2 / 8	How do I synchronize two processes on two different PC's ? Have you tried using sockets (Communication->UDP)? I've used them in the past for inter-process communication between UNIX and PC programs.
Wed, 10 Nov 2004 02:18:36 GMT

Bryan Dicke #3 / 8	How do I synchronize two processes on two different PC's ? Another option besides Datasocket is VI Server. For example, you can change variables on the remote system while polling for them to ensure synchronization. Bryan{filter}ey Applications Engineer National Instruments http://www.--*.com/
Mon, 15 Nov 2004 00:29:39 GMT

MattBradle #4 / 8	How do I synchronize two processes on two different PC's ? Interesting point. I haven't tried that method yet. How fast is the communication? Is it based on sockets or something else?
Mon, 15 Nov 2004 07:14:42 GMT

Bryan Dicke #5 / 8	How do I synchronize two processes on two different PC's ? VI Server is built on ActiveX and TCP/IP. So the network communication portion is based on sockets. There is a good discussion topic about synchronizing across a network called <a href=" http://www.--.com/ ;>"Data-Communication between hosts: "Queues" v. "VI-Server""</a> Bryan{filter}ey Applications Engineer National Instruments http://www.--.com/
Tue, 23 Nov 2004 08:01:09 GMT

mikeporte #6 / 8	How do I synchronize two processes on two different PC's ? There are (as the other posters have pointed out) a variety of way to accomplish this task, I guess the question that's of key importance, is how closely do the two functions need to be synchronized? Given that there is a network involved--which is very non deterministic--the timing I assume isn't too exacting. Could you explain a little more about your application. It would help us to provide more specific examples, or even code... Mike...
Tue, 23 Nov 2004 11:39:53 GMT

Wieb #7 / 8	How do I synchronize two processes on two different PC's ? You could consider a serial link (com port) , if it needs to be fast. The PCs must be close together. You can choose from many solutions (using filesystem, database synchronisation, the ones mentioned by mr. Bradley and mr.{filter}ey, even DDE). As mr. Porter mentioned, it all depends on the application. Regards, Wiebe. Quote: > I have a master and slave computer with a vi running on each, > periodically these processes will need to be synchronized. If the > processes were running as separate threads on the same PC, I > know could use the LabVIEW rendezvous technology to do this. But > because the processes are on separate PCs, it is not obvious to me how > to accomplish the sychronization. Thank you for your consideration of > my > question.
Tue, 23 Nov 2004 16:03:51 GMT

Frank Rizz #8 / 8	How do I synchronize two processes on two different PC's ? Thanks for all the suggestions. I have solved the problem using the example "VI server and semaphores". The example demonstrates how to use semaphores over a network, I made a similar set of VIs using the rendezvous VIs. Thanks again.
Fri, 26 Nov 2004 20:22:24 GMT

Page 1 of 1

[ 8 post ]