e9ae8b7d29
The routers are created before the network class. This results in the routers becoming children of the first link they are connected to and they get generic names like int_node and node_b. This patch creates the network object first and passes it to the topology creation function. Now the routers are children of the network object and names are much more sensible.
114 lines
4.7 KiB
Python
114 lines
4.7 KiB
Python
# Copyright (c) 2012 Advanced Micro Devices, Inc.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# Authors: Jason Power
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from BaseTopology import BaseTopology
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class Cluster(BaseTopology):
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""" A cluster is a group of nodes which are all one hop from eachother
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Clusters can also contain other clusters
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When creating this kind of topology, return a single cluster (usually
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the root cluster) from create_system in configs/ruby/<protocol>.py
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"""
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_num_int_links = 0
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_num_ext_links = 0
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_num_routers = 0
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# Below methods for auto counting
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@classmethod
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def num_int_links(cls):
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cls._num_int_links += 1
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return cls._num_int_links - 1
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@classmethod
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def num_ext_links(cls):
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cls._num_ext_links += 1
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return cls._num_ext_links - 1
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@classmethod
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def num_routers(cls):
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cls._num_routers += 1
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return cls._num_routers - 1
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def __init__(self, intBW=0, extBW=0, intLatency=0, extLatency=0):
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""" internalBandwidth is bandwidth of all links within the cluster
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externalBandwidth is bandwidth from this cluster to any cluster
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connecting to it.
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internal/externalLatency are similar
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**** When creating a cluster with sub-clusters, the sub-cluster
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external bandwidth overrides the internal bandwidth of the
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super cluster
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"""
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self.nodes = []
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self.router = None # created in makeTopology
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self.intBW = intBW
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self.extBW = extBW
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self.intLatency = intLatency
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self.extLatency = extLatency
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def add(self, node):
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self.nodes.append(node)
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def makeTopology(self, options, network, IntLink, ExtLink, Router):
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""" Recursively make all of the links and routers
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"""
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# make a router to connect all of the nodes
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self.router = Router(router_id=self.num_routers())
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network.routers.append(self.router)
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for node in self.nodes:
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if type(node) == Cluster:
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node.makeTopology(options, network, IntLink, ExtLink, Router)
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# connect this cluster to the router
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link = IntLink(link_id=self.num_int_links(), node_a=self.router, node_b=node.router)
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if node.extBW:
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link.bandwidth_factor = node.extBW
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elif self.intBW: # if there is an interanl b/w for this node and no ext b/w to override
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link.bandwidth_factor = self.intBW
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if node.extLatency:
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link.latency = node.extLatency
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elif self.intLatency:
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link.latency = self.intLatency
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network.int_links.append(link)
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else:
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# node is just a controller connect it to the router via a ext_link
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link = ExtLink(link_id=self.num_ext_links(), ext_node=node, int_node=self.router)
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if self.intBW:
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link.bandwidth_factor = self.intBW
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if self.intLatency:
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link.latency = self.intLatency
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network.ext_links.append(link)
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def __len__(self):
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return len([i for i in self.nodes if type(i) != Cluster]) + \
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sum([len(i) for i in self.nodes if type(i) == Cluster])
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