def setUpClass(cls):
cls.topo = fnss.glp_topology(n=100, m=1, m0=10, p=0.2, beta=-2, seed=1)
fnss.set_capacities_random_uniform(cls.topo, [10, 20, 40])
odd_links = [(u, v) for (u, v) in cls.topo.edges() if (u + v) % 2 == 1]
even_links = [(u, v) for (u, v) in cls.topo.edges()
if (u + v) % 2 == 0]
fnss.set_delays_constant(cls.topo, 2, 'ms', odd_links)
fnss.set_delays_constant(cls.topo, 5, 'ms', even_links)
cls.capacities = [12, 25, 489, 1091]
def setUpClass(cls):
cls.topo = fnss.glp_topology(n=100, m=1, m0=10, p=0.2, beta=-2, seed=1)
fnss.set_capacities_random_uniform(cls.topo, [10, 20, 40])
odd_links = [(u, v) for (u, v) in cls.topo.edges()
if (u + v) % 2 == 1]
even_links = [(u, v) for (u, v) in cls.topo.edges()
if (u + v) % 2 == 0]
fnss.set_delays_constant(cls.topo, 2, 'ms', odd_links)
fnss.set_delays_constant(cls.topo, 5, 'ms', even_links)
cls.capacities = [12, 25, 489, 1091]
def setUpClass(cls):
# set up topology used for all traffic matrix tests
cls.topo = fnss.k_ary_tree_topology(3, 4)
cls.capacities = [10, 20]
cls.odd_links = [(u, v) for (u, v) in cls.topo.edges()
if (u + v) % 2 == 1]
cls.even_links = [(u, v) for (u, v) in cls.topo.edges()
if (u + v) % 2 == 0]
fnss.set_capacities_random_uniform(cls.topo, cls.capacities)
fnss.set_delays_constant(cls.topo, 3, 'ms', cls.odd_links)
fnss.set_delays_constant(cls.topo, 12, 'ms', cls.even_links)
def setUpClass(cls):
# set up topology used for all traffic matrix tests
cls.topo = fnss.k_ary_tree_topology(3, 4)
cls.capacities = [10, 20]
cls.odd_links = [(u, v) for (u, v) in cls.topo.edges_iter()
if (u + v) % 2 == 1]
cls.even_links = [(u, v) for (u, v) in cls.topo.edges_iter()
if (u + v) % 2 == 0]
fnss.set_capacities_random_uniform(cls.topo, cls.capacities)
fnss.set_delays_constant(cls.topo, 3, 'ms', cls.odd_links)
fnss.set_delays_constant(cls.topo, 12, 'ms', cls.even_links)
def setUp(self):
self.connection_params = {
'db_name': 'TestDb',
'host': 'localhost',
'port': 3366,
'user': '******',
'password': '******'
}
vne_interface.DbManager.set_connection_parameter(
**self.connection_params)
vne_interface.DbManager.connect()
with vne_interface.dm.db.transaction() as txn:
try:
vne_interface.dm.db.create_tables([
vne_interface.dm.EventGenerationSetting,
vne_interface.dm.VnrGenerationSetting,
vne_interface.dm.AlgorithmSetting,
vne_interface.dm.Network, vne_interface.dm.Node,
vne_interface.dm.Edge, vne_interface.dm.NetworkAttribute,
vne_interface.dm.SubstrateGenerationSetting,
vne_interface.dm.EventHeap, vne_interface.dm.Experiment,
vne_interface.dm.LearningModel, vne_interface.dm.Setup
])
self.algo_setting = vne_interface.dm.AlgorithmSetting.create(
parameter=
'{"alpha": 0.5, "beta": 0.5, "name": "melo_sdp", "timeout": 65.0}'
)
self.event_setting = vne_interface.dm.EventGenerationSetting.create(
parameter=
'{"model": "erdoes_renyi", "lmbd": 10, "num_requests": 5, "avg_life_time": 1000}'
)
self.vnr_setting = vne_interface.dm.VnrGenerationSetting.create(
parameter=
'{"min_bw": 0, "max_cpu": 50, "maxy": 100, "miny": 0, '
'"min_cpu": 0, "max_bw": 50, "minx": 0, "connectivity": 0.5, '
'"bandwidth": "uniform", "max_num_nodes": 22, '
'"min_num_nodes": 8, "max_distance": 501, '
'"min_distance": 500, "maxx": 100}')
self.substrate_setting = vne_interface.dm.SubstrateGenerationSetting.create(
parameter='{"min_bw": 50, "max_cpu": 100, "maxy": 100, '
'"substrate": true, "miny": 0, "min_cpu": 50, '
'"bandwidth": "uniform", "num_nodes": 43, "minx": 0, '
'"connectivity": 0.5, "max_bw": 100, "max_distance": 50, '
'"model": "erdoes_renyi", "min_distance": 1, "maxx": 100}')
substrate = fnss.erdos_renyi_topology(43, 0.5)
fnss.set_capacities_random_uniform(substrate, range(50, 100))
for attributes in substrate.node.itervalues():
attributes['cpu'] = np.random.uniform(50, 100)
networkif = vne_interface.Network.from_fnss_topology(substrate)
self.substrate = networkif.network_model
self.learning_model = vne_interface.dm.LearningModel.create(
type='testmode',
serialized_model='/path/to/model.pkl',
aux_params='empty',
comment=
'This model is created from setup method of unittest')
self.experiment = vne_interface.dm.Experiment.create(
description=
'Created for test purposes from setup method of unittest')
self.event_heaps = []
for i in range(5):
self.event_heaps.append(
vne_interface.dm.EventHeap.create(
event_generation_setting_id=self.event_setting.
event_generation_setting_id,
vnr_generation_setting_id=self.vnr_setting.
vnr_generation_setting_id))
self.setups = []
for heap in self.event_heaps:
self.setups.append(
vne_interface.dm.Setup.create(
event_generation_setting=self.event_setting,
vnr_generation_setting=self.vnr_setting,
substrate_generation_setting=self.
substrate_setting,
algorithm_setting=self.algo_setting,
experiment=self.experiment,
event_heap=heap,
description=
'Test Setup created from unittest setup method',
substrate=self.substrate,
learning_model_id=self.learning_model.
learning_model_id))
txn.commit()
except Exception as e:
logging.exception(e)
txn.rollback()
def test_capacities_random_uniform(self):
fnss.set_capacities_random_uniform(self.topo, self.capacities)
self.assertTrue(
all(self.topo.edge[u][v]['capacity'] in self.capacities
for (u, v) in self.topo.edges_iter()))
def test_capacities_random_uniform(self):
fnss.set_capacities_random_uniform(self.topo, self.capacities)
self.assertTrue(all(self.topo.edge[u][v]['capacity'] in self.capacities
for (u, v) in self.topo.edges_iter()))
def generate_attributes(self,
vnr,
min_capacity,
max_capacity,
capacity_generation,
min_cpu,
max_cpu,
min_edge_distance=None,
max_edge_distance=None,
delay_per_km=0.005,
is_substrate=False,
minx=None,
maxx=None,
miny=None,
maxy=None,
**kwargs):
"""
Sets the following edge attributes:
* capacity [Mb/s]
* delay [ms]
* length [km]
* mapping - zero if substrate else empty list
* free_capacity if substrate is True
Delay is calculated based on attribute delay and length of edge.
Sets the following node attributes:
* cpu
* mapping
* free_cpu if substrate is True
If the network was created using the Waxman2 method, a longitude and
latitude attribute will be present for the nodes
Args:
vnr (Vnr): Object of type Vnr.
min_bw (int): Minimal value for bandwidth on edge.
max_bw (int): Maximal value for bandwidth on edge.
bandwidth (string): {uniform, power} - How bandwidth should be
generated.
if uniform is chosen distribution follows uniform distribution,
if power is chosen distribution follows a power law.
min_cpu (int): Minimal value for CPU capacity.
max_cpu (int): Maximal value for CPU capacity.
min_distance (int): Minimal length of an edge.
max_distance (int): Maximal length of an edge.
delay (float, optional): Delay per kilometer of cable length
substrate (optional, bool): Whether it is a substrate network or not
"""
if delay_per_km is None:
delay_per_km = 0.05
if 'distance_unit' not in vnr.graph:
vnr.graph['distance_unit'] = 'km'
bws = range(int(min_capacity), int(max_capacity) + 1)
if capacity_generation == 'uniform':
fnss.set_capacities_random_uniform(topology=vnr, capacities=bws)
elif capacity_generation == 'power':
fnss.set_capacities_random_power_law(topology=vnr, capacities=bws)
for attributes in vnr.node.itervalues():
attributes['cpu'] = int(np.random.uniform(min_cpu, max_cpu))
attributes['mapping'] = 0
if is_substrate:
attributes['free_cpu'] = attributes['cpu']
attributes['total_mapped'] = 0
attributes['currently_mapped'] = 0
if ('latitude' not in attributes) and (minx is not None) and (
maxx is not None):
attributes['latitude'] = np.random.uniform(minx, maxx)
if ('longitude' not in attributes) and (minx is not None) and (
maxx is not None):
attributes['longitude'] = np.random.uniform(miny, maxy)
for i, j, attr in vnr.edges(data=True):
if 'length' not in attr:
if 'longitude' in vnr.node[i] and 'latitude' in vnr.node[i]:
attr['length'] = np.sqrt(
np.square(vnr.node[i]['latitude'] -
vnr.node[j]['latitude']) +
np.square(vnr.node[i]['longitude'] -
vnr.node[j]['longitude']))
else:
if (min_edge_distance is None) and (max_edge_distance is
None):
pass
else:
attr['length'] = np.random.uniform(
min_edge_distance, max_edge_distance)
attr['mapping'] = 0 if is_substrate else []
if is_substrate:
attr['free_capacity'] = attr['capacity']
attr['total_mapped'] = 0
attr['currently_mapped'] = 0
fnss.set_delays_geo_distance(vnr, specific_delay=delay_per_km)
fnss.set_weights_delays(vnr)