e2e_bgsplit.py

# Copyright 2024 Max Planck Institute for Software Systems, and
# National University of Singapore
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import random
import simbricks.orchestration.experiments as exp
import simbricks.orchestration.nodeconfig as node
import simbricks.orchestration.simulators as sim
import simbricks.orchestration.e2e_components as e2e
import simbricks.orchestration.e2e_partition as e2e_part
from simbricks.orchestration.simulator_utils import create_tcp_cong_hosts
from simbricks.orchestration.e2e_topologies import (
    DCFatTree, add_contig_bg
)



sync_factors = [1.0, 0.5, 0.25, 0.1]
options = {
    'ns3::TcpSocket::SegmentSize': '1448',
    'ns3::TcpSocket::SndBufSize': '524288',
    'ns3::TcpSocket::RcvBufSize': '524288',
}

kinds_of_parts = e2e_part.hier_partitions(DCFatTree()).keys()

experiments = []
for p in kinds_of_parts:
  for sf in sync_factors:
    e = exp.Experiment(f'e2e_bgsplit-{p}-{sf}')
    # Make sure background hosts are placed the same way
    random.seed(42)

    # Create empty topology first
    topology = DCFatTree()
    # fill up with background traffic hosts
    add_contig_bg(topology)

    partition = e2e_part.hier_partitions(topology)[p]
    nets = e2e_part.instantiate_partition(topology, partition, sf)
    dot = e2e_part.dot_topology(topology, partition)
    for net in nets:
      net.e2e_global.stop_time = '50ms'
      net.opt = ' '.join([f'--{o[0]}={o[1]}' for o in options.items()])
      net.wait = True
      e.add_network(net)
      net.init_network()

    with open(f'out/{e.name}.dot', 'w') as f:
      f.write(dot)

    experiments.append(e)