\subsubsection faq_MIA_asynchronous I want to do asynchronous communications in MSG
-Up until now, there is no asynchronous communications in MSG. However,
-you can create as many process as you want so you should be able to do
-whatever you want... I've written a queue module to help implementing
-some asynchronous communications at low cost (creating thousands of
-process only to handle communications may be problematic in term of
-performance at some point). I'll add it in the distribution asap.
+We can now use asynchronous communication in MSG by using function :
+
+ MSG_task_isend()
+
+ MSG_task_irecv()
+
+ MSG_comm_test()
+
+ MSG_comm_wait()
+
+ MSG_comm_waitall()
+
+ MSG_comm_waitany()
+
+ MSG_comm_destroy()
+
+See page :\ref MSG_ex_asynchronous_communications
\subsubsection faq_MIA_thread_synchronization I need to synchronize my MSG processes
\li set Hosts
\verbatim
- simgrid.Host.new("Tremblay",98095000);
- simgrid.Host.new("Jupiter",76296000);
- simgrid.Host.new("Fafard",76296000);
- simgrid.Host.new("Ginette",48492000);
- simgrid.Host.new("Bourassa",48492000);
+ simgrid.Host.new{id="Tremblay",power=98095000};
+ simgrid.Host.new{id="Jupiter",power=76296000};
+ simgrid.Host.new{id="Fafard",power=76296000};
+ simgrid.Host.new{id="Ginette",power=48492000};
+ simgrid.Host.new{id="Bourassa",power=48492000};
\endverbatim
- we use simgrid.Host.new(host_id,power) to instanciate our hosts.
+ we use simgrid.Host.new{id=id_host,power=power_host} to instanciate our hosts.
\li set Links
\verbatim
for i=0,11 do
- simgrid.Link.new(i,252750+ i*768,0.000270544+i*0.087); -- some crazy values ;)
+ simgrid.Link.new{id=i,bandwidth=252750+ i*768,latency=0.000270544+i*0.087}; -- some crazy values ;)
end
\endverbatim
- we used simgrid.Link.new(link_id,bandwidth,latency) with a simple for loop to create all links we need ( much easier than XML hein ? )
+ we used simgrid.Link.new{id=link_id,bandwidth=bw,latency=lat} with a simple for loop to create all links we need (much easier than XML hein ?)
\li set Routes
\verbatim
