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-rw-r--r--configs/topologies/Mesh_westfirst.py20
1 files changed, 16 insertions, 4 deletions
diff --git a/configs/topologies/Mesh_westfirst.py b/configs/topologies/Mesh_westfirst.py
index 3af894f93..6139f6742 100644
--- a/configs/topologies/Mesh_westfirst.py
+++ b/configs/topologies/Mesh_westfirst.py
@@ -58,15 +58,21 @@ class Mesh_westfirst(SimpleTopology):
num_routers = options.num_cpus
num_rows = options.mesh_rows
+ # default values for link latency and router latency.
+ # Can be over-ridden on a per link/router basis
+ link_latency = options.link_latency # used by simple and garnet
+ router_latency = options.router_latency # only used by garnet
+
# There must be an evenly divisible number of cntrls to routers
# Also, obviously the number or rows must be <= the number of routers
cntrls_per_router, remainder = divmod(len(nodes), num_routers)
- assert(num_rows <= num_routers)
+ assert(num_rows > 0 and num_rows <= num_routers)
num_columns = int(num_routers / num_rows)
assert(num_columns * num_rows == num_routers)
# Create the routers in the mesh
- routers = [Router(router_id=i) for i in range(num_routers)]
+ routers = [Router(router_id=i, latency=router_latency) \
+ for i in range(num_routers)]
network.routers = routers
# link counter to set unique link ids
@@ -88,7 +94,8 @@ class Mesh_westfirst(SimpleTopology):
cntrl_level, router_id = divmod(i, num_routers)
assert(cntrl_level < cntrls_per_router)
ext_links.append(ExtLink(link_id=link_count, ext_node=n,
- int_node=routers[router_id]))
+ int_node=routers[router_id],
+ latency = link_latency))
link_count += 1
# Connect the remainding nodes to router 0. These should only be
@@ -97,7 +104,8 @@ class Mesh_westfirst(SimpleTopology):
assert(node.type == 'DMA_Controller')
assert(i < remainder)
ext_links.append(ExtLink(link_id=link_count, ext_node=node,
- int_node=routers[0]))
+ int_node=routers[0],
+ latency = link_latency))
link_count += 1
network.ext_links = ext_links
@@ -114,6 +122,7 @@ class Mesh_westfirst(SimpleTopology):
int_links.append(IntLink(link_id=link_count,
src_node=routers[east_out],
dst_node=routers[west_in],
+ latency = link_latency,
weight=2))
link_count += 1
@@ -126,6 +135,7 @@ class Mesh_westfirst(SimpleTopology):
int_links.append(IntLink(link_id=link_count,
src_node=routers[west_out],
dst_node=routers[east_in],
+ latency = link_latency,
weight=1))
link_count += 1
@@ -139,6 +149,7 @@ class Mesh_westfirst(SimpleTopology):
int_links.append(IntLink(link_id=link_count,
src_node=routers[north_out],
dst_node=routers[south_in],
+ latency = link_latency,
weight=2))
link_count += 1
@@ -151,6 +162,7 @@ class Mesh_westfirst(SimpleTopology):
int_links.append(IntLink(link_id=link_count,
src_node=routers[south_out],
dst_node=routers[north_in],
+ latency = link_latency,
weight=2))
link_count += 1