-\subsubsection MSG_ex_asynchronous_communications Asynchronous communications
-
-
-Simulation of asynchronous communications between a sender and a receiver using a realistic platform and
-an external description of the deployment.
-
- - \ref MSG_ext_icomms_code
- - \ref MSG_ext_icomms_preliminary
- - \ref MSG_ext_icomms_Sender
- - \ref MSG_ext_icomms_Receiver
- - \ref MSG_ext_icomms_core
- - \ref MSG_ext_icomms_Main
- - \ref MSG_ext_icomms_fct_Waitall
- - \ref MSG_ext_icomms_fct_Waitany
-
-<hr>
-
-\dontinclude msg/icomms/peer.c
-
-\paragraph MSG_ext_icomms_code Code of the application
-
-\paragraph MSG_ext_icomms_preliminary Preliminary declarations
-\skip include
-\until Sender function
-
-\paragraph MSG_ext_icomms_Sender Sender function
-
-A host can send an an asynchronous message with \c MSG_task_isend(). %As this function is non-blocking,
-we have to call \c MSG_comm_test() to know if the communication has finished and finally destroy it with a call to \c MSG_comm_destroy().
-It is also possible to call \c MSG_comm_wait() which, is provides a shortcut.
-
- C style arguments (argc/argv) are interpreted as:
- - the number of tasks to distribute
- - the computation size of each task
- - the size of the files associated to each task
- - a list of host that will accept those tasks.
- - the time to sleep at the beginning of the function
- - This time defined the process sleep time
- if time = 0 use of MSG_comm_wait()
- if time > 0 use of MSG_comm_test()
-
-
-\until Receiver function
-
-\paragraph MSG_ext_icomms_Receiver Receiver function
-
-This function executes tasks when it receives them. %As the receiving is asynchronous we have to test the communication to know
-if it is completed or not with \c MSG_comm_test() or wait for the completion \c MSG_comm_wait().
-
- C style arguments (argc/argv) are interpreted as:
- - the id to use for received the communication.
- - the time to sleep at the beginning of the function
- - This time defined the process sleep time
- if time = 0 use of MSG_comm_wait()
- if time > 0 use of MSG_comm_test()
-
-\until Test function
-
-\paragraph MSG_ext_icomms_core Simulation core
-
- This function is the core of the simulation and is divided only into 3 parts
- thanks to MSG_create_environment() and MSG_launch_application().
- -# Simulation settings : MSG_create_environment() creates a realistic
- environment
- -# Application deployment : create the processes on the right locations with
- MSG_launch_application()
- -# The simulation is run with #MSG_main()
-
- Its arguments are:
- - <i>platform_file</i>: the name of a file containing an valid surfxml platform description.
- - <i>application_file</i>: the name of a file containing a valid surfxml application description
-
-\until Main function
-
-\paragraph MSG_ext_icomms_Main Main function
-
-This initializes MSG, runs a simulation, and free all data-structures created by MSG.
-
-\until end_of_main
-
-\dontinclude msg/icomms/peer2.c
-
-\paragraph MSG_ext_icomms_fct_Waitall Waitall function for sender
-
-The use of this function permit to send all messages and wait for the completion of all in one time.
-
-\skipline Sender function
-\until end_of_sender
-
-\paragraph MSG_ext_icomms_fct_Waitany Waitany function
-
-The MSG_comm_waitany() function return the place of the first message send or receive from a xbt_dynar_t table.
-
-\paragraph MSG_ext_icomms_fct_Waitany_sender From a sender
-We can use this function to wait all sent messages.
-\dontinclude msg/icomms/peer3.c
-\skipline Sender function
-\until end_of_sender
-
-\paragraph MSG_ext_icomms_fct_Waitany_receiver From a receiver
-We can also wait for the arrival of all messages.
-\dontinclude msg/icomms/peer3.c
-\skipline Receiver function
-\until end_of_receiver
-
