numNodes should be private in Poisson integrator
numNodes should be private in Poisson integrator

YetAnotherMinion/core,yangf4/core,yangf4/core,YetAnotherMinion/core,YetAnotherMinion/core,yangf4/core,yangf4/core,YetAnotherMinion/core,YetAnotherMinion/core,yangf4/core