Redirecting stdout to build/MIPS/tests/opt/quick/se/00.hello/mips/linux/o3-timing/simout Redirecting stderr to build/MIPS/tests/opt/quick/se/00.hello/mips/linux/o3-timing/simerr gem5 Simulator System. http://gem5.org gem5 is copyrighted software; use the --copyright option for details. gem5 compiled Nov 15 2015 14:56:12 gem5 started Nov 15 2015 14:56:33 gem5 executing on ribera.cs.wisc.edu, pid 4270 command line: build/MIPS/gem5.opt -d build/MIPS/tests/opt/quick/se/00.hello/mips/linux/o3-timing -re /scratch/nilay/GEM5/gem5/tests/run.py build/MIPS/tests/opt/quick/se/00.hello/mips/linux/o3-timing Global frequency set at 1000000000000 ticks per second info: Entering event queue @ 0. Starting simulation... info: Increasing stack size by one page. Hello World! Exiting @ tick 22454000 because target called exit()