X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/e5c753ba8972bc86efa6fc26a4b6378bf6971e0b..4d922346f668e9e8dd4ed661567b99e42df1d14d:/doc/doxygen/FAQ.doc diff --git a/doc/doxygen/FAQ.doc b/doc/doxygen/FAQ.doc index 9b1dd1d5e0..0cdd751436 100644 --- a/doc/doxygen/FAQ.doc +++ b/doc/doxygen/FAQ.doc @@ -49,19 +49,16 @@ We also have a more graphical output. Have a look at section \ref options_tracin \subsection faq_C Argh! Do I really have to code in C? -Currently bindings on top of MSG are supported for Java, Ruby and Lua. You can find a few -documentation about them on the doc page. Note that bindings are released separately from the main dist -and so have their own version numbers. +We provide Java bindings of the MSG interface, which is the main +SimGrid user API. -Moreover If you use C++, -you should be able to use the SimGrid library as a standard C library -and everything should work fine (simply link against this -library; recompiling SimGrid with a C++ compiler won't work and it -wouldn't help if you could). +Moreover If you use C++, you should be able to use the SimGrid library +as a standard C library and everything should work fine (simply +link against this library; recompiling SimGrid with a C++ +compiler won't work and it wouldn't help if you could). -For now, -we do not feel a real demand for any other language. But if you think there is one, - please speak up! +For now, we do not feel a real demand for any other language. But if +you think there is one, please speak up! \section faq_howto Feature related questions @@ -193,7 +190,7 @@ would have to do out of the simulator, and thus gives you information that you could also get in real settings to not hinder the realism of your simulation. -\verbatim +\code double get_host_load() { m_task_t task = MSG_task_create("test", 0.001, 0, NULL); double date = MSG_get_clock(); @@ -203,7 +200,7 @@ double get_host_load() { MSG_task_destroy(task); return (0.001/date); } -\endverbatim +\endcode Of course, it may not match your personal definition of "host load". In this case, please detail what you mean on the mailing list, and we will extend @@ -218,7 +215,7 @@ account the time spent waiting for the other party to be ready). However, getting the *real* communication time is not really hard either. The following solution is a good starting point. -\verbatim +\code int sender() { m_task_t task = MSG_task_create("Task", task_comp_size, task_comm_size, @@ -243,7 +240,7 @@ int receiver() MSG_task_destroy(task); return 0; } -\endverbatim +\endcode \subsection faq_MIA_SimDag SimDag related questions @@ -256,10 +253,10 @@ model a data dependency between two DAG tasks t1 and t2, you have to create 3 SD_tasks: t1, t2 and c and add dependencies in the following way: -\verbatim +\code SD_task_dependency_add(NULL, NULL, t1, c); SD_task_dependency_add(NULL, NULL, c, t2); -\endverbatim +\endcode This way task t2 cannot start before the termination of communication c which in turn cannot start before t1 ends. @@ -281,7 +278,7 @@ communicating process to make the whole scheduling process distributed. Here is an example of how you could do that. Assume T1 has to be done before T2. -\verbatim +\code int your_agent(int argc, char *argv[] { ... T1 = MSG_task_create(...); @@ -298,7 +295,7 @@ has to be done before T2. } } } -\endverbatim +\endcode If you decide that the distributed part is not that much important and that DAG is really the level of abstraction you want to work with, then you should