Minimum distance is not increasing after step 60 (some bodies have small weigth)

thomaspeugeot / tkv

10 000

MIT License

0 stars 0 forks source link

Minimum distance is not increasing after step 60 (some bodies have small weigth) #21

Closed thomaspeugeot closed 5 years ago

thomaspeugeot commented 5 years ago

Situation go run sim_server.go -sourceCountryNbBodies=1631062 Notice that some bodies have small weigth because one tries to overcome issue #19 bodies should move away from each others (MinD should increases steadily)

Problem After 60 steps, MinD drops dramaticaly (see curve)

issue 21 - curve for mind

If the minimum distance does not decreases, then the timestamp does not decrease, then the convergence he slow.

thomaspeugeot commented 5 years ago

In order to work with this is issue, One need a small data set because if you use A big data set, like France, then come out every iteration is five minutes long. We need a small dataset like Cyprus, with 1 million people . Or Mauritius

thomaspeugeot commented 5 years ago

Design decision:

what répulsion law ? The repulsive with quadratic decrease? A local repulsive law (as in packing? ) à mixture of both? Why buy a pince of local attraction as in emulsions? Shall we slosh the mixture?
what sampling : Do we allow for weak bodies or only bodies above the threshold?

thomaspeugeot commented 5 years ago

need more computing power :: http://ics.sorbonne-universites.fr/

thomaspeugeot commented 5 years ago

by having bodies with minimal weigth (above cutoff), the issue is not relevant anymore