See other README for more information, not all of Splash-3 is runnable with no edits
merged ece565's gem5 from Spr2023/2024 ece565/ece666's gem5 with ngathman's https://github.com/ngathman/Splash_3_Gem5 as existing Splash2 benchmarks were broken
example usage:
./build/ECE666/gem5.opt configs/splash3/run.py -b Barnes -n 4