Network.py (7030:a200627c3d42) Network.py (7032:9f938aea1942)
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

--- 42 unchanged lines hidden (view full) ---

51class Topology(SimObject):
52 type = 'Topology'
53 ext_links = VectorParam.ExtLink("Links to external nodes")
54 int_links = VectorParam.IntLink("Links between internal nodes")
55 num_int_nodes = Param.Int("Nunber of internal nodes")
56 print_config = Param.Bool(False,
57 "display topology config in the stats file")
58
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

--- 42 unchanged lines hidden (view full) ---

51class Topology(SimObject):
52 type = 'Topology'
53 ext_links = VectorParam.ExtLink("Links to external nodes")
54 int_links = VectorParam.IntLink("Links between internal nodes")
55 num_int_nodes = Param.Int("Nunber of internal nodes")
56 print_config = Param.Bool(False,
57 "display topology config in the stats file")
58
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(num_rows <= num_routers)
74 num_columns = int(num_routers / num_rows)
75 assert(num_columns * num_rows == num_routers)
76
77 #
78 # Add all but the remainder nodes to the list of nodes to be uniformly
79 # distributed across the network.
80 #
81 network_nodes = []
82 remainder_nodes = []
83 for node_index in xrange(len(nodes)):
84 if node_index < (len(nodes) - remainder):
85 network_nodes.append(nodes[node_index])
86 else:
87 remainder_nodes.append(nodes[node_index])
88
89 #
90 # Connect each node to the appropriate router
91 #
92 ext_links = []
93 for (i, n) in enumerate(network_nodes):
94 cntrl_level, router_id = divmod(i, num_routers)
95 assert(cntrl_level < cntrls_per_router)
96 ext_links.append(ExtLink(ext_node=n, int_node=router_id))
97
98 #
99 # Connect the remainding nodes to router 0. These should only be DMA nodes.
100 #
101 for (i, node) in enumerate(remainder_nodes):
102 assert(node.type == 'DMA_Controller')
103 assert(i < remainder)
104 ext_links.append(ExtLink(ext_node=node, int_node=0))
105
106 #
107 # Create the mesh links. First row (east-west) links then column
108 # (north-south) links
109 #
110 int_links = []
111 for row in xrange(num_rows):
112 for col in xrange(num_columns):
113 if (col + 1 < num_columns):
114 east_id = col + (row * num_columns)
115 west_id = (col + 1) + (row * num_columns)
116 int_links.append(IntLink(node_a=east_id,
117 node_b=west_id,
118 weight=1))
119 for col in xrange(num_columns):
120 for row in xrange(num_rows):
121 if (row + 1 < num_rows):
122 north_id = col + (row * num_columns)
123 south_id = col + ((row + 1) * num_columns)
124 int_links.append(IntLink(node_a=north_id,
125 node_b=south_id,
126 weight=2))
127
128 return Topology(ext_links=ext_links,
129 int_links=int_links,
130 num_int_nodes=num_routers)
131
132class RubyNetwork(SimObject):
133 type = 'RubyNetwork'
134 cxx_class = 'Network'
135 abstract = True
136 number_of_virtual_networks = Param.Int(10, "");
137 topology = Param.Topology("");
138 buffer_size = Param.Int(0,
139 "default buffer size; 0 indicates infinite buffering");
140 endpoint_bandwidth = Param.Int(10000, "");
141 adaptive_routing = Param.Bool(False, "enable adaptive routing");
142 link_latency = Param.Int(1,
143 "local memory latency ?? NetworkLinkLatency");
144 control_msg_size = Param.Int(8, "");
59class RubyNetwork(SimObject):
60 type = 'RubyNetwork'
61 cxx_class = 'Network'
62 abstract = True
63 number_of_virtual_networks = Param.Int(10, "");
64 topology = Param.Topology("");
65 buffer_size = Param.Int(0,
66 "default buffer size; 0 indicates infinite buffering");
67 endpoint_bandwidth = Param.Int(10000, "");
68 adaptive_routing = Param.Bool(False, "enable adaptive routing");
69 link_latency = Param.Int(1,
70 "local memory latency ?? NetworkLinkLatency");
71 control_msg_size = Param.Int(8, "");