kill msg_mailbox_t entierely

[simgrid.git] / doc / doxygen / options.doc

diff --git a/doc/doxygen/options.doc b/doc/doxygen/options.doc
index 9f33858..ff8a7d3 100644 (file)
--- 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
   - \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
 
 
 \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.
 
 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
 
 
 \subsection options_model_network Configuring the Network model
 


@@ -851,6 +846,8 @@ This is the default value:
     This feature currently requires superuser privileges, as registers are queried.
     Only use this feature with code you trust! Call smpirun for instance via
         smpirun -wrapper "sudo " <your-parameters>
     This feature currently requires superuser privileges, as registers are queried.
     Only use this feature with code you trust! Call smpirun for instance via
         smpirun -wrapper "sudo " <your-parameters>

+    or run sudo sh -c "echo 0 > /proc/sys/kernel/perf_event_paranoid"
+    In the later case, sudo will not be required.

 
 \note
     This option is only available when SimGrid was compiled with PAPI support.
 
 \note
     This option is only available when SimGrid was compiled with PAPI support.