| # Copyright (c) 2016-2017 ARM Limited |
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| # |
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| |
| # This configuration file extends the example ARM big.LITTLE(tm) |
| # configuration to enabe dist-gem5 siulations of big.LITTLE systems. |
| |
| import argparse |
| import os |
| |
| import m5 |
| from m5.objects import * |
| |
| import fs_bigLITTLE as bL |
| |
| m5.util.addToPath("../../dist") |
| import sw |
| |
| |
| def addOptions(parser): |
| # Options for distributed simulation (i.e. dist-gem5) |
| parser.add_argument( |
| "--dist", action="store_true", help="Distributed gem5" " simulation." |
| ) |
| parser.add_argument( |
| "--is-switch", |
| action="store_true", |
| help="Select the network switch simulator process for" |
| " a distributed gem5 run.", |
| ) |
| parser.add_argument( |
| "--dist-rank", |
| default=0, |
| action="store", |
| type=int, |
| help="Rank of this system within the dist gem5 run.", |
| ) |
| parser.add_argument( |
| "--dist-size", |
| default=0, |
| action="store", |
| type=int, |
| help="Number of gem5 processes within the dist gem5" " run.", |
| ) |
| parser.add_argument( |
| "--dist-server-name", |
| default="127.0.0.1", |
| action="store", |
| type=str, |
| help="Name of the message server host\nDEFAULT:" " localhost", |
| ) |
| parser.add_argument( |
| "--dist-server-port", |
| default=2200, |
| action="store", |
| type=int, |
| help="Message server listen port\nDEFAULT: 2200", |
| ) |
| parser.add_argument( |
| "--dist-sync-repeat", |
| default="0us", |
| action="store", |
| type=str, |
| help="Repeat interval for synchronisation barriers" |
| " among dist-gem5 processes\nDEFAULT:" |
| " --ethernet-linkdelay", |
| ) |
| parser.add_argument( |
| "--dist-sync-start", |
| default="1000000000000t", |
| action="store", |
| type=str, |
| help="Time to schedule the first dist synchronisation" |
| " barrier\nDEFAULT:1000000000000t", |
| ) |
| parser.add_argument( |
| "--ethernet-linkspeed", |
| default="10Gbps", |
| action="store", |
| type=str, |
| help="Link speed in bps\nDEFAULT: 10Gbps", |
| ) |
| parser.add_argument( |
| "--ethernet-linkdelay", |
| default="10us", |
| action="store", |
| type=str, |
| help="Link delay in seconds\nDEFAULT: 10us", |
| ) |
| parser.add_argument( |
| "--etherdump", |
| action="store", |
| type=str, |
| default="", |
| help="Specify the filename to dump a pcap capture of" |
| " the ethernet traffic", |
| ) |
| # Used by util/dist/gem5-dist.sh |
| parser.add_argument( |
| "--checkpoint-dir", |
| type=str, |
| default=m5.options.outdir, |
| help="Directory to save/read checkpoints", |
| ) |
| |
| |
| def addEthernet(system, options): |
| # create NIC |
| dev = IGbE_e1000() |
| system.attach_pci(dev) |
| system.ethernet = dev |
| |
| # create distributed ethernet link |
| system.etherlink = DistEtherLink( |
| speed=options.ethernet_linkspeed, |
| delay=options.ethernet_linkdelay, |
| dist_rank=options.dist_rank, |
| dist_size=options.dist_size, |
| server_name=options.dist_server_name, |
| server_port=options.dist_server_port, |
| sync_start=options.dist_sync_start, |
| sync_repeat=options.dist_sync_repeat, |
| ) |
| system.etherlink.int0 = Parent.system.ethernet.interface |
| if options.etherdump: |
| system.etherdump = EtherDump(file=options.etherdump) |
| system.etherlink.dump = system.etherdump |
| |
| |
| def main(): |
| parser = argparse.ArgumentParser( |
| description="Generic ARM big.LITTLE configuration with " |
| "dist-gem5 support" |
| ) |
| bL.addOptions(parser) |
| addOptions(parser) |
| options = parser.parse_args() |
| |
| if options.is_switch: |
| root = Root(full_system=True, system=sw.build_switch(options)) |
| else: |
| root = bL.build(options) |
| addEthernet(root.system, options) |
| |
| bL.instantiate(options, checkpoint_dir=options.checkpoint_dir) |
| bL.run(options.checkpoint_dir) |
| |
| |
| if __name__ == "__m5_main__": |
| main() |