I now have the GHDL simulation system up and running on my Trinity Server 2.

This has about 16 GB of memory and it also slow.

The main reason for this is that every signal in the entire design is recorded. If there was a method to just record a subset then it would I feel be a lot faster.

I could go for the VCD approach but seeing as the design is written with different types there is no point in what can be seen.

My Mac has been running a simulation for approx 10 hours and it has only run 664 us.

Whatever method I use to run the sim it's going to be slow.

Note also, both the Mac and Trinity Server 2 are running off SSD's.