Redirecting stdout to build/ALPHA/tests/opt/quick/se/00.hello/alpha/linux/simple-timing-ruby/simout Redirecting stderr to build/ALPHA/tests/opt/quick/se/00.hello/alpha/linux/simple-timing-ruby/simerr gem5 Simulator System. http://gem5.org gem5 is copyrighted software; use the --copyright option for details. gem5 compiled Nov 15 2015 14:28:00 gem5 started Nov 15 2015 14:30:20 gem5 executing on ribera.cs.wisc.edu, pid 29152 command line: build/ALPHA/gem5.opt -d build/ALPHA/tests/opt/quick/se/00.hello/alpha/linux/simple-timing-ruby -re /scratch/nilay/GEM5/gem5/tests/run.py build/ALPHA/tests/opt/quick/se/00.hello/alpha/linux/simple-timing-ruby Global frequency set at 1000000000 ticks per second info: Entering event queue @ 0. Starting simulation... info: Increasing stack size by one page. Hello world! Exiting @ tick 107210 because target called exit()