1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
|
# Copyright (c) 2012 Advanced Micro Devices, Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met: redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer;
# redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution;
# neither the name of the copyright holders nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# Authors: Jason Power
from BaseTopology import BaseTopology
class Cluster(BaseTopology):
""" A cluster is a group of nodes which are all one hop from eachother
Clusters can also contain other clusters
When creating this kind of topology, return a single cluster (usually
the root cluster) from create_system in configs/ruby/<protocol>.py
"""
_num_int_links = 0
_num_ext_links = 0
_num_routers = 0
# Below methods for auto counting
@classmethod
def num_int_links(cls):
cls._num_int_links += 1
return cls._num_int_links - 1
@classmethod
def num_ext_links(cls):
cls._num_ext_links += 1
return cls._num_ext_links - 1
@classmethod
def num_routers(cls):
cls._num_routers += 1
return cls._num_routers - 1
def __init__(self, intBW=0, extBW=0, intLatency=0, extLatency=0):
""" internalBandwidth is bandwidth of all links within the cluster
externalBandwidth is bandwidth from this cluster to any cluster
connecting to it.
internal/externalLatency are similar
**** When creating a cluster with sub-clusters, the sub-cluster
external bandwidth overrides the internal bandwidth of the
super cluster
"""
self.nodes = []
self.router = None # created in makeTopology
self.intBW = intBW
self.extBW = extBW
self.intLatency = intLatency
self.extLatency = extLatency
def add(self, node):
self.nodes.append(node)
def makeTopology(self, options, IntLink, ExtLink, Router):
""" Recursively make all of the links and routers
"""
routers = []
int_links = []
ext_links = []
# make a router to connect all of the nodes
self.router = Router(router_id=self.num_routers())
routers.append(self.router)
for node in self.nodes:
if type(node) == Cluster:
subRouters, subIntLinks, subExtLinks = node.makeTopology(options, IntLink, ExtLink, Router)
routers += subRouters
int_links += subIntLinks
ext_links += subExtLinks
# connect this cluster to the router
link = IntLink(link_id=self.num_int_links(), node_a=self.router, node_b=node.router)
if node.extBW:
link.bandwidth_factor = node.extBW
elif self.intBW: # if there is an interanl b/w for this node and no ext b/w to override
link.bandwidth_factor = self.intBW
if node.extLatency:
link.latency = node.extLatency
elif self.intLatency:
link.latency = self.intLatency
int_links.append(link)
else:
# node is just a controller connect it to the router via a ext_link
link = ExtLink(link_id=self.num_ext_links(), ext_node=node, int_node=self.router)
if self.intBW:
link.bandwidth_factor = self.intBW
if self.intLatency:
link.latency = self.intLatency
ext_links.append(link)
return routers, int_links, ext_links
def __len__(self):
return len([i for i in self.nodes if type(i) != Cluster]) + \
sum([len(i) for i in self.nodes if type(i) == Cluster])
|
