On 8/31/2019 12:42 PM, Abhishek Singh wrote:
Hi yuan, Gem5 is a single thread application. So there’s no way to speed up gem5 with increasing number of core.
I'll just add that doing parallel simulation, especially if timing is involved, requires a lot of synchronization. One can imagine doing optimistic run-ahead, possibly tuning the degree of optimism dynamically, etc., but I think such a system would be pretty complex, and it's not clear how much benefit you would get after dealing with the overheads. Anyway, IMO it would require designing a system that way from the start. Still, I admit I am not familiar with the low-level scheduling "guts" of Gem5, which is a key part that would need to change. However, to do well, one would need to know how different components depend on various pieces of state in order to determine what might run in parallel, etc. Regards - Eliot Moss _______________________________________________ gem5-users mailing list [email protected] http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
