Chap job crashes due to memory issues

[eric-jm-lang]

Hi, I am trying to run chap on a 50000 frames trajectory. However the job dies after about 1000 frames, I believe because it feels up all the RAM available on my computer: I can see all the amount of memory used increases until it uses everything.

I have to run it with -dt 100 to have the calculation end successfully. Which means that I loose a significant portion of my MD.

Is this due to a memory leak or other bug? Or does the program needs to keep everything in memory? Is there a work around this problem? for example is it possible to force writing to disk instead of keeping in memory?

Many thanks in advance.