1# Copyright (c) 2009 Advanced Micro Devices, Inc. 2# All rights reserved. 3# 4# Redistribution and use in source and binary forms, with or without 5# modification, are permitted provided that the following conditions are 6# met: redistributions of source code must retain the above copyright 7# notice, this list of conditions and the following disclaimer; 8# redistributions in binary form must reproduce the above copyright --- 50 unchanged lines hidden (view full) --- 59def makeCrossbar(nodes): 60 ext_links = [ExtLink(ext_node=n, int_node=i) 61 for (i, n) in enumerate(nodes)] 62 xbar = len(nodes) # node ID for crossbar switch 63 int_links = [IntLink(node_a=i, node_b=xbar) for i in range(len(nodes))] 64 return Topology(ext_links=ext_links, int_links=int_links, 65 num_int_nodes=len(nodes)+1) 66 |
67def makeMesh(nodes, num_routers, num_rows): 68 # 69 # There must be an evenly divisible number of cntrls to routers 70 # Also, obviously the number or rows must be <= the number of routers 71 # 72 cntrls_per_router, remainder = divmod(len(nodes), num_routers) 73 assert(remainder == 0) 74 assert(num_rows <= num_routers) 75 num_columns = int(num_routers / num_rows) 76 assert(num_columns * num_rows == num_routers) 77 78 # 79 # Connect each node to the appropriate router 80 # 81 ext_links = [] 82 for (i, n) in enumerate(nodes): 83 cntrl_level, router_id = divmod(i, num_routers) 84 assert(cntrl_level < cntrls_per_router) 85 ext_links.append(ExtLink(ext_node=n, int_node=router_id)) 86 87 # 88 # Create the mesh links. First row (east-west) links then column 89 # (north-south) links 90 # 91 int_links = [] 92 for row in xrange(num_rows): 93 for col in xrange(num_columns): 94 if (col + 1 < num_columns): 95 east_id = col + (row * num_columns) 96 west_id = (col + 1) + (row * num_columns) 97 int_links.append(IntLink(node_a=east_id, 98 node_b=west_id, 99 weight=1)) 100 for col in xrange(num_columns): 101 for row in xrange(num_rows): 102 if (row + 1 < num_rows): 103 north_id = col + (row * num_columns) 104 south_id = col + ((row + 1) * num_columns) 105 int_links.append(IntLink(node_a=north_id, 106 node_b=south_id, 107 weight=2)) 108 109 return Topology(ext_links=ext_links, 110 int_links=int_links, 111 num_int_nodes=num_routers) 112 |
113class RubyNetwork(SimObject): 114 type = 'RubyNetwork' 115 cxx_class = 'Network' 116 abstract = True 117 number_of_virtual_networks = Param.Int(10, ""); 118 topology = Param.Topology(""); 119 buffer_size = Param.Int(0, 120 "default buffer size; 0 indicates infinite buffering"); 121 endpoint_bandwidth = Param.Int(10000, ""); 122 adaptive_routing = Param.Bool(True, ""); 123 link_latency = Param.Int(1, 124 "local memory latency ?? NetworkLinkLatency"); 125 control_msg_size = Param.Int(8, ""); |