X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/a0bf088c008c5f07ac578f488aa11173e955a7c0..bbe99325656822fa65b57f0acb88f79b082f20c7:/doc/doxygen/options.doc

diff --git a/doc/doxygen/options.doc b/doc/doxygen/options.doc
index cdb3654b27..22cfa387c0 100644
--- a/doc/doxygen/options.doc
+++ b/doc/doxygen/options.doc
@@ -139,7 +139,8 @@ when using SimDag.
   - \b compound: Host model that is automatically chosen if
     you change the network and CPU models
   - \b ptask_L07: Host model somehow similar to Cas01+CM02 but
-    allowing parallel tasks
+    allowing "parallel tasks", that are intended to model the moldable
+    tasks of the grid scheduling literature.
 
 \subsection options_generic_plugin Plugins
 
@@ -198,16 +199,10 @@ the \b maxmin/precision item (default value: 0.00001). Changing it
 may speedup the simulation by discarding very small actions, at the
 price of a reduced numerical precision.
 
-\subsection options_model_nthreads Parallel threads for model updates
+\subsection options_concurrency_limit Concurrency limit
 
-By default, Surf computes the analytical models sequentially to share their
-resources and update their actions. It is possible to run them in parallel,
-using the \b surf/nthreads item (default value: 1). If you use a
-negative or null value, the amount of available cores is automatically
-detected  and used instead.
-
-Depending on the workload of the models and their complexity, you may get a
-speedup or a slowdown because of the synchronization costs of threads.
+The maximum number of variables in a system can be tuned through
+the \b maxmin/concurrency_limit item (default value: 100). Setting a higher value can lift some limitations, such as the number of concurrent processes running on a single host.
 
 \subsection options_model_network Configuring the Network model
 
@@ -317,6 +312,15 @@ corresponding to the ns3::TcpL4Protocol::SocketType configuration item
 in NS3. The only valid values (enforced on the SimGrid side) are
 'NewReno' or 'Reno' or 'Tahoe'.
 
+\subsection options_model_storage Configuring the Storage model
+
+\subsubsection option_model_storage_maxfd Maximum amount of file descriptors per host
+
+Each host maintains a fixed-size array of its file descriptors. You
+can change its size (1024 by default) through the \b
+storage/max_file_descriptors item to either enlarge it if your
+application requires it or to reduce it to save memory space.
+
 \section options_modelchecking Configuring the Model-Checking
 
 To enable the SimGrid model-checking support the program should
@@ -1174,7 +1178,8 @@ silently overflow on other parts of the memory.
 - \c path: \ref options_generic_path
 - \c plugin: \ref options_generic_plugin
 
-- \c surf/nthreads: \ref options_model_nthreads
+- \c storage/max_file_descriptors: \ref option_model_storage_maxfd
+
 - \c surf/precision: \ref options_model_precision
 
 - \c <b>For collective operations of SMPI, please refer to Section \ref options_index_smpi_coll</b>