Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
There are several things that can speed up the simulation.
1) set the minimum time step to 1 hour and maximum iterations to 1:
Timestep, 60;
ConvergenceLimits, 0, 1, 1, 1;
2) reduce the number of Output:Variable objects so that writing to output is minimized
3) reduce the iterations on coil performance solution:
PerformancePrecisionTradeoffs,Yes;
4) Set ShadowCalculation frequency to 30 (once per month) or 60 (every other month).
5) I am sure there are other speed up options but these are the top few. See PerformancePrecisionTradeoffs.
Once the simulation executes successfully and provide desired results you can turn these speed up techniques off and run the simulation normally.
