Hi John, Short answer : no, you can only run several simulations in parallel, but not a single simulation using one thread per CPU.
Gem5 relies on Discrete Event Simulation (DES) to simulate the concurrent behavior of HW. DES is intrinsically sequential in its execution as it relies on coroutines (also called user user threads, greed threads, fibers, etc.). Parallelizing such application is a very hard task that often requires a lot of subtle code transformations to efficiently protect shared resources. If done correctly, then parallel DES does not have all the good properties of classic DES, especially determinism... Unless you add extra care to preserve it, which is hard, too. Trust me ;). This question has been discussed back in the days but seems stalled now: http://www.m5sim.org/Parallel_M5 Cheers, Gabriel _______________________________________________ gem5-users mailing list -- gem5-users@gem5.org To unsubscribe send an email to gem5-users-le...@gem5.org %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s
