When I run RTL simulation by irun which is mainly composed of verilog and systemverilog code, sometimes it use Incisive_Enterprise_Simulator, sometimes it use Incisive_HDL_Simulator. So ,can someone tell me what's the difference of these two simulators? Why some simulation testbench should use IES, but some other testbench use Incisive_HDL_Simulator?
I have just met a problem: when I run a test with irun command, it's queuing for one of the following license(s) - Incisive_Enterprise_Simulator. But at this time there is a free license of Incisive_HDL_Simulator. Why not use Incisive_HDL_Simulator, but waiting for IES license? It seems some simulation can only be performed by IES? Am I right?
Thanks!