Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
A lot of EnergyPlus users, myself included, run concurrent EnergyPlus simulations all the time without seeing this behavior.
That said, there was one release of EnergyPlus where the development team tried to introduce parallelization inside EnergyPlus itself and it caused problems -- if I recall correctly, one simulation would use all available cores at 100%. I can't immediately dig up which version it was, maybe something like 7.0? But this was fixed in the subsequent release.
