OMNeT++ IDE Crashes on Opening Results or Analysis Files After Successful Simulation

Rany • 1 week ago • 24 views

Hi folks, I've been working on some simulations in OMNeT++, and everything runs without a hitch—the simulation completes fine, generates the .vec and .sca files, no errors during execution. But the moment I try to open those analysis files in the IDE to view charts or stats, the whole program crashes on me. It's super annoying because I need to analyze the results for my project. I'm on the latest version, and this happens consistently. Has anyone else experienced this? Maybe it's a memory issue or a plugin conflict? I'd love some advice on how to debug or workaround this.

1

Admin Answer

Yeah, OMNeT++ crashing when loading analysis files is a pain I've dealt with before, especially with large result sets. It often stems from the IDE's result viewer hitting a resource limit or a bug in the analysis tool. Try increasing the Java heap size for the IDE by editing the omnetpp.ini file—add something like '-vmargs -Xmx4G' to give it more memory. If that doesn't help, export the results to CSV using opp_scavetool from the command line and analyze them in external software like Python with Pandas or R. In my experience, updating to the newest OMNeT++ patch or disabling unnecessary plugins in the IDE preferences also fixed it. If it's a specific file causing the crash, check for corruption by running a smaller simulation and scaling up.

Verified Answer Last updated: 6 hours ago

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