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<?xml version='1.0'?>
<!DOCTYPE platform SYSTEM "http://simgrid.gforge.inria.fr/simgrid/simgrid.dtd">
<platform version="4.1">
<zone id="world" routing="Full">
<!-- this platform models 3 clusters, interconnected over the Internet
--
-- This example intends to be somewhat exhaustive, your platform should probably be simpler.
--
-- In particular, the clusters are modeled in very different ways,
-- but you should pick the way you prefer, and stick to it.
-->
<!-- Here comes the first cluster, the simplest one.
Every nodes are connected through a private link to a router
(ie a machine that cannot host computations).
node-0.1core.org --[l0]--
\
node-1.1core.org --[l1]-- router -- (outer world)
... /
node-7.1core.org --[l9]--
So the route from node-0 to node-1 is {l0.UP, l1.DOWN}
-->
<cluster id="simple" prefix="node-" radical="0-7" suffix=".1core.org" speed="1Gf" bw="125MBps" lat="50us" />
<!-- This second cluster has a backbone link, connecting all private links:
node-0.2cores.org --[l0]-------+
|
node-1.2cores.org --[l1]--[backbone]-- router -- (outer world)
... |
node-7.2cores.org --[l7]-------+
The route from node-0 to node-1 is: l0.UP ; backbone ; l1.DOWN
The route from node-0 to the outer world begins with: l0.UP ; backbone
-->
<cluster id="backboned" prefix="node-" radical="0-7" suffix=".2cores.org"
speed="1Gf" core="2"
bw="125MBps" lat="50us"
bb_bw="2.25GBps" bb_lat="500us"/>
<!-- This cluster has a backbone link, but no links are splitduplex.
-- It means that up and down communications compete as if they
-- were using exactly the same resource. If you send and receive
-- at the same time, then each get half of the bandwidth.
--
-- Also, the hosts have 4 cores.
-->
<cluster id="halfduplex" prefix="node-" radical="0-7" suffix=".4cores.org" speed="1Gf" core="4"
bw="125MBps" lat="50us" sharing_policy="SHARED"
bb_bw="2.25GBps" bb_lat="500us" bb_sharing_policy="SHARED" />
<!-- And now, we create the routes between the clusters, ie inter-zone routes -->
<!-- We have only one outer link, representing the internet
-- Its sharing is FATPIPE, meaning that communications have no impact on each others.
-- Any given comm can use the full provided bandwidth.
--
-- This models the big links constituting the backbone of the internet,
-- that users cannot saturate.
-- Users' bandwidth is mostly limited by their outgoing connexion,
-- not by the network backbone. -->
<link id="backbone" bandwidth="1.25GBps" latency="500us" sharing_policy="FATPIPE"/>
<zoneRoute src="simple" dst="backboned"
gw_src="node-simple_router.1core.org"
gw_dst="node-backboned_router.2cores.org">
<link_ctn id="backbone" />
</zoneRoute>
<zoneRoute src="simple" dst="halfduplex"
gw_src="node-simple_router.1core.org"
gw_dst="node-halfduplex_router.4cores.org">
<link_ctn id="backbone" />
</zoneRoute>
<zoneRoute src="backboned" dst="halfduplex"
gw_src="node-backboned_router.2cores.org"
gw_dst="node-halfduplex_router.4cores.org">
<link_ctn id="backbone" />
</zoneRoute>
</zone>
</platform>
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