11b725c19d
Instead of just passing a list of controllers to the makeTopology function in src/mem/ruby/network/topologies/<Topo>.py we pass in a function pointer which knows how to make the topology, possibly with some extra state set in the configs/ruby/<protocol>.py file. Thus, we can move all of the files from network/topologies to configs/topologies. A new class BaseTopology is added which all topologies in configs/topologies must inheirit from and follow its API. --HG-- rename : src/mem/ruby/network/topologies/Crossbar.py => configs/topologies/Crossbar.py rename : src/mem/ruby/network/topologies/Mesh.py => configs/topologies/Mesh.py rename : src/mem/ruby/network/topologies/MeshDirCorners.py => configs/topologies/MeshDirCorners.py rename : src/mem/ruby/network/topologies/Pt2Pt.py => configs/topologies/Pt2Pt.py rename : src/mem/ruby/network/topologies/Torus.py => configs/topologies/Torus.py
134 lines
5.9 KiB
Python
134 lines
5.9 KiB
Python
# Copyright (c) 2010 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: Brad Beckmann
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from m5.params import *
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from m5.objects import *
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from BaseTopology import BaseTopology
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class MeshDirCorners(BaseTopology):
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description='MeshDirCorners'
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def __init__(self, controllers):
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self.nodes = controllers
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# This file contains a special network creation function. This
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# networks is not general and will only work with specific system
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# configurations. The network specified is similar to GEMS old file
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# specified network.
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def makeTopology(self, options, IntLink, ExtLink, Router):
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nodes = self.nodes
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num_routers = options.num_cpus
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num_rows = options.mesh_rows
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# First determine which nodes are cache cntrls vs. dirs vs. dma
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cache_nodes = []
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dir_nodes = []
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dma_nodes = []
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for node in nodes:
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if node.type == 'L1Cache_Controller' or \
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node.type == 'L2Cache_Controller':
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cache_nodes.append(node)
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elif node.type == 'Directory_Controller':
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dir_nodes.append(node)
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elif node.type == 'DMA_Controller':
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dma_nodes.append(node)
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# Obviously the number or rows must be <= the number of routers
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# and evenly divisible. Also the number of caches must be a
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# multiple of the number of routers and the number of directories
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# must be four.
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assert(num_rows <= num_routers)
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num_columns = int(num_routers / num_rows)
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assert(num_columns * num_rows == num_routers)
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caches_per_router, remainder = divmod(len(cache_nodes), num_routers)
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assert(remainder == 0)
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assert(len(dir_nodes) == 4)
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# Create the routers in the mesh
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routers = [Router(router_id=i) for i in range(num_routers)]
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# link counter to set unique link ids
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link_count = 0
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# Connect each cache controller to the appropriate router
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ext_links = []
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for (i, n) in enumerate(cache_nodes):
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cntrl_level, router_id = divmod(i, num_routers)
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assert(cntrl_level < caches_per_router)
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ext_links.append(ExtLink(link_id=link_count, ext_node=n,
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int_node=routers[router_id]))
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link_count += 1
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# Connect the dir nodes to the corners.
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ext_links.append(ExtLink(link_id=link_count, ext_node=dir_nodes[0],
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int_node=routers[0]))
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link_count += 1
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ext_links.append(ExtLink(link_id=link_count, ext_node=dir_nodes[1],
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int_node=routers[num_columns - 1]))
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link_count += 1
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ext_links.append(ExtLink(link_id=link_count, ext_node=dir_nodes[2],
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int_node=routers[num_routers - num_columns]))
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link_count += 1
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ext_links.append(ExtLink(link_id=link_count, ext_node=dir_nodes[3],
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int_node=routers[num_routers - 1]))
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link_count += 1
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# Connect the dma nodes to router 0. These should only be DMA nodes.
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for (i, node) in enumerate(dma_nodes):
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assert(node.type == 'DMA_Controller')
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ext_links.append(ExtLink(link_id=link_count, ext_node=node, int_node=routers[0]))
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# Create the mesh links. First row (east-west) links then column
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# (north-south) links
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int_links = []
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for row in xrange(num_rows):
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for col in xrange(num_columns):
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if (col + 1 < num_columns):
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east_id = col + (row * num_columns)
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west_id = (col + 1) + (row * num_columns)
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int_links.append(IntLink(link_id=link_count,
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node_a=routers[east_id],
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node_b=routers[west_id],
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weight=1))
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link_count += 1
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for col in xrange(num_columns):
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for row in xrange(num_rows):
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if (row + 1 < num_rows):
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north_id = col + (row * num_columns)
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south_id = col + ((row + 1) * num_columns)
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int_links.append(IntLink(link_id=link_count,
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node_a=routers[north_id],
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node_b=routers[south_id],
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weight=2))
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link_count += 1
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return routers, int_links, ext_links
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