config_root = os.path.dirname(config_path)
addToPath(config_root+'/configs/common')
addToPath(config_root+'/configs/ruby')
+addToPath(config_root+'/configs/topologies')
import Ruby
import Options
options.num_cpus = 1
cpu = TimingSimpleCPU(cpu_id=0)
-system = System(cpu = cpu, physmem = PhysicalMemory())
+system = System(cpu = cpu, physmem = SimpleMemory(null = True))
+system.clock = options.sys_clock
Ruby.create_system(options, system)