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c-thaler's avatar
c-thaler
Icon for Occasional Contributor rankOccasional Contributor
2 years ago

Questa simulation hangs (nondeterministic)

I run a Questa simulation for an IP core from the command line on a Linux server. Usually, the simulation finishs successfully. But every now and then the simulation hangs. When it hangs, I can see ...
Simulation
c-thaler's avatar
c-thaler
Icon for Occasional Contributor rankOccasional Contributor
2 years ago

I was able to reproduce the hang up on a Windows system.
In contrast to the Linux system I was able to stop the process with Ctrl-C leading to the following output:

vish lost connection to vsim process.

                                                                                                                                                                                    
simulator: Unexpected EOF on RPC channel sock0000000007A71780
Kernel lost connection to front end process.
** Fatal: Exiting VSIM license process.