I have faced with a strange high memory usage in IBM ILOG CPLEX Optimization Studio V12.6.0. Actually I was using Version 12.3, but because of some reasons I have decided to switch to V12.6.
My code in Version 12.3 uses a reasonable level of memory in solving the CP model, but unexpectedly I found that in Version 12.6.0 the same code uses so much memory when it starts reading "cp.startNewSearch()".
The memory usage in my laptop in Version 12.3 is 2.7 GB during solving the CP model (and also when it is reading the the CP search method) but in Version 12.6 when the same code gets to "cp.startNewSearch()" the memory usage suddenly increases to 4.7 GB and after reading this line it decreases to 3.4 GB. This issue strongly decreases the speed of my algorithm and sometimes freezes the computer.
Why does V 12.6.0 behave so strange? I also checked Versions 12.4 and 12.5.1. V12.4 works without any problem, but there is the same issue in V12.5.1.