X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/6e13bd7e4f3efdb21c8a29c6fdd4ececf18d3505..0a21b9f790a054594bc96362331582333216a8c7:/doc/doxygen/platform.doc
diff --git a/doc/doxygen/platform.doc b/doc/doxygen/platform.doc
index 4a7a5d4637..021adbe2bb 100644
--- a/doc/doxygen/platform.doc
+++ b/doc/doxygen/platform.doc
@@ -100,7 +100,7 @@ Within each AS, the following types of resources exist:
\li link: a link that defines a connection between two (or
more) resources. Every link has a bandwidth and a latency.
\li cluster: like a real cluster, contains many hosts
- interconnected by some dedicated network.
+ interconnected by some dedicated network. Each cluster is itself an AS.
Between these elements, a routing has to be defined. The AS is
supposed to be Autonomous, hence this has to be done at the AS level. The AS
@@ -282,14 +282,14 @@ so on.
\subsubsection pf_cluster
-```` represents a machine-cluster. Most of the time it is used
-when you want to define many machines quickly. Technically,
+```` represents a machine-cluster. It is most commonly used
+when one wants to define many hosts and a network quickly. Technically,
``cluster`` is a meta-tag: from the inner SimGrid point of
view, a cluster is an AS where some optimized routing is defined.
The default inner organization of the cluster is as follow:
\verbatim
- _________
+ __________
| |
| router |
____________|__________|_____________ backbone
@@ -300,17 +300,17 @@ The default inner organization of the cluster is as follow:
c-0.me c-99.me
\endverbatim
-You have a set of host defined. Each of them has a link
-to a central backbone (backbone is a link itself, as a link can
-be used to represent a switch, see the switch or link section
-below for more details about it). A router gives a way to the
-cluster to be connected to the outside world. Internally,
-cluster is then an AS containing all hosts : the router is the default
+Here, a set of hosts is defined. Each of them has a link
+to a central backbone (backbone is a link itself, as a link can
+be used to represent a switch, see the switch / link section
+below for more details about it). A router allows to connect a
+cluster to the outside world. Internally,
+SimGrid treats a cluster as an AS containing all hosts: the router is the default
gateway for the cluster.
-There is an alternative organization, which is as follow :
+There is an alternative organization, which is as follows:
\verbatim
- _________
+ __________
| |
| router |
|__________|
@@ -322,9 +322,8 @@ There is an alternative organization, which is as follow :
host0 host1 host2
\endverbatim
-The principle is the same, except we don't have the backbone. The way
-to obtain it is simple : you just have to let bb_* attributes
-unset.
+The principle is the same, except that there is no backbone. This representation
+can be obtained easily: just do not set the bb_* attributes.
Attribute name | Mandatory | Values | Description