So yes, plenty of simulators exist, many internal ones as well as gem5* but automated search space exploration, say like with mcmc, isn't in widespread use yet

So yes, plenty of simulators exist, many internal ones as well as gem5* but automated search space exploration, say like with mcmc, isn't in widespread use yet iirc, although plenty of academic papers have explored the topic. *which I swear every company has their own version of