X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/a4b5bbd4e14f566c45013b6da710460f8a110893..4f3a160841e4b3ad438549814da64aa62c114f45:/doc/user_guide/doxygen/options.doc

diff --git a/doc/user_guide/doxygen/options.doc b/doc/user_guide/doxygen/options.doc
index fc97106e34..1901e91d99 100644
--- a/doc/user_guide/doxygen/options.doc
+++ b/doc/user_guide/doxygen/options.doc
@@ -234,6 +234,18 @@ the same network card through the \b network/sender_gap item. This
 is still under investigation as of writting, and the default value is
 to wait 0 seconds between emissions (no gap applied).
 
+\subsubsection options_model_network_asyncsend Simulating asyncronous send
+
+(this configuration item is experimental and may change or disapear)
+
+It is possible to specify that messages below a certain size will be sent 
+as soon as the call to MPI_Send is issued, without waiting for the 
+correspondant receive. This threshold can be configured through the 
+\b smpi/async_small_thres item. The default value is 0. This behavior can also be 
+manually set for MSG mailboxes, by setting the receiving mode of the mailbox 
+with a call to \ref MSG_mailbox_set_async . For MSG, all messages sent to this 
+mailbox will have this behavior, so consider using two mailboxes if needed. 
+
 \subsubsection options_pls Configuring packet-level pseudo-models
 
 When using the packet-level pseudo-models, several specific
@@ -571,6 +583,7 @@ It can be done by using XBT. Go to \ref XBT_log for more details.
 - \c smpi/running_power: \ref options_smpi_bench
 - \c smpi/display_timing: \ref options_smpi_timing
 - \c smpi/cpu_threshold: \ref options_smpi_bench
+- \c smpi/async_small_thres: \ref options_model_network_asyncsend
 
 - \c path: \ref options_generic_path
 - \c verbose-exit: \ref options_generic_exit