I make numerical calculation series with integrals in each term (Mathematica 11.1, system Linux Mint 18). I use ParallelSum with 4 kernels. I start $HistoryLength = 0 at the beginning. MemoryUsed at the beginning shows around 76Mb. After calculations it is around 100Mb but memory used in computer is all of my memory 7.5Gb from 8Gb. System monitor shows that there are 4 kernels with 1.2Gb each and 1 kernel with 140Mb and Mathematica itself 220Mb. How enforce Mathematica to clean kernels after calculations?
$HistoryLengthon the kernels? Some example code that reproduces the issue would help; make it take up less memory but still show the memory is not released. $\endgroup$
$HistoryLength = 0on all kernels (156054). $\endgroup$