diff options
Diffstat (limited to 'configs/ruby')
| -rw-r--r-- | configs/ruby/Ruby.py | 10 | ||||
| -rw-r--r-- | configs/ruby/networks/MeshDirCorners.py | 118 |
2 files changed, 128 insertions, 0 deletions
diff --git a/configs/ruby/Ruby.py b/configs/ruby/Ruby.py index d6889ef1a..22d56f9a1 100644 --- a/configs/ruby/Ruby.py +++ b/configs/ruby/Ruby.py @@ -31,6 +31,8 @@ import m5 from m5.objects import * from m5.defines import buildEnv from m5.util import addToPath +addToPath('../ruby/networks') +from MeshDirCorners import * protocol = buildEnv['PROTOCOL'] @@ -59,6 +61,14 @@ def create_system(options, physmem, piobus = None, dma_devices = []): net_topology = makeMesh(all_cntrls, len(cpu_sequencers), options.mesh_rows) + + elif options.topology == "mesh_dir_corner": + # + # The uniform mesh topology assumes one router per cpu + # + net_topology = makeMeshDirCorners(all_cntrls, + len(cpu_sequencers), + options.mesh_rows) if options.garnet_network == "fixed": network = GarnetNetwork_d(topology = net_topology) diff --git a/configs/ruby/networks/MeshDirCorners.py b/configs/ruby/networks/MeshDirCorners.py new file mode 100644 index 000000000..381deeec6 --- /dev/null +++ b/configs/ruby/networks/MeshDirCorners.py @@ -0,0 +1,118 @@ +# Copyright (c) 2010 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: Brad Beckmann + +from m5.params import * +from m5.objects import * + +# +# This file contains a special network creation function. This networks is not +# general and will only work with specific system configurations. The network +# specified is similar to GEMS old file specified network. +# + +def makeMeshDirCorners(nodes, num_routers, num_rows): + # + # First determine which nodes are cache cntrls vs. dirs vs. dma + # + cache_nodes = [] + dir_nodes = [] + dma_nodes = [] + for node in nodes: + if node.type == 'L1Cache_Controller' or \ + node.type == 'L2Cache_Controller': + cache_nodes.append(node) + elif node.type == 'Directory_Controller': + dir_nodes.append(node) + elif node.type == 'DMA_Controller': + dma_nodes.append(node) + + # + # Obviously the number or rows must be <= the number of routers and evenly + # divisible. Also the number of caches must be a multiple of the number of + # routers and the number of directories must be four. + # + assert(num_rows <= num_routers) + num_columns = int(num_routers / num_rows) + assert(num_columns * num_rows == num_routers) + caches_per_router, remainder = divmod(len(cache_nodes), num_routers) + assert(remainder == 0) + assert(len(dir_nodes) == 4) + + # + # Connect each cache controller to the appropriate router + # + ext_links = [] + for (i, n) in enumerate(cache_nodes): + cntrl_level, router_id = divmod(i, num_routers) + assert(cntrl_level < caches_per_router) + ext_links.append(ExtLink(ext_node=n, int_node=router_id)) + + # + # Connect the dir nodes to the corners. + # + ext_links.append(ExtLink(ext_node=dir_nodes[0], int_node=0)) + ext_links.append(ExtLink(ext_node=dir_nodes[1], int_node=(num_columns - 1))) + + ext_links.append(ExtLink(ext_node=dir_nodes[2], + int_node=(num_routers - num_columns))) + + ext_links.append(ExtLink(ext_node=dir_nodes[3], int_node=(num_routers - 1))) + + # + # Connect the dma nodes to router 0. These should only be DMA nodes. + # + for (i, node) in enumerate(dma_nodes): + assert(node.type == 'DMA_Controller') + ext_links.append(ExtLink(ext_node=node, int_node=0)) + + # + # Create the mesh links. First row (east-west) links then column + # (north-south) links + # + int_links = [] + for row in xrange(num_rows): + for col in xrange(num_columns): + if (col + 1 < num_columns): + east_id = col + (row * num_columns) + west_id = (col + 1) + (row * num_columns) + int_links.append(IntLink(node_a=east_id, + node_b=west_id, + weight=1)) + for col in xrange(num_columns): + for row in xrange(num_rows): + if (row + 1 < num_rows): + north_id = col + (row * num_columns) + south_id = col + ((row + 1) * num_columns) + int_links.append(IntLink(node_a=north_id, + node_b=south_id, + weight=2)) + + return Topology(ext_links=ext_links, + int_links=int_links, + num_int_nodes=num_routers) + |