8 <object id="TOC" data="graphical-toc.svg" type="image/svg+xml"></object>
10 window.onload=function() { // Wait for the SVG to be loaded before changing it
11 var elem=document.querySelector("#TOC").contentDocument.getElementById("ActorBox")
12 elem.style="opacity:0.93999999;fill:#ff0000;fill-opacity:0.1;stroke:#000000;stroke-width:0.35277778;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1";
18 The S4U interface (SimGrid for you) mixes the full power of SimGrid
19 with the full power of C++. This is the preferred interface to describe
20 abstract algorithms in the domains of Cloud, P2P, HPC, IoT, and similar
23 Since v3.20 (June 2018), S4U is the way to go for long-term
24 projects. It is feature complete, but may still evolve slightly in
25 future releases. It can already be used to do everything that can be
26 done in SimGrid, but you may have to adapt your code in future
27 releases. When this happens, compiling your code will produce
28 deprecation warnings for 4 releases (one year) before the removal of
30 If you want an API that will never ever evolve in the future, you
31 should use the :ref:`deprecated MSG API <MSG_doc>` instead.
36 A typical SimGrid simulation is composed of several |API_s4u_Actors|_, that
37 execute user-provided functions. The actors have to explicitly use the
38 S4U interface to express their :ref:`computation <API_s4u_Exec>`,
39 :ref:`communication <API_s4u_Comm>`, :ref:`disk usage <API_s4u_Io>`,
40 and other |API_s4u_Activities|_, so that they get reflected within the
41 simulator. These activities take place on resources such as |API_s4u_Hosts|_,
42 |API_s4u_Links|_, and |API_s4u_Disks|_. SimGrid predicts the time taken by each
43 activity and orchestrates the actors accordingly, waiting for the
44 completion of these activities.
47 When **communicating**, data is not directly sent to other actors but
48 posted onto a |API_s4u_Mailbox|_ that serves as a rendezvous point between
49 communicating actors. This means that you don't need to know who you
50 are talking to, you just put your communication `Put` request in a
51 mailbox, and it will be matched with a complementary `Get`
52 request. Alternatively, actors can interact through **classical
53 synchronization mechanisms** such as |API_s4u_Barrier|_, |API_s4u_Semaphore|_,
54 |API_s4u_Mutex|_, and |API_s4u_ConditionVariable|_.
56 Each actor is located on a simulated |API_s4u_Host|_. Each host is located
57 in a |API_s4u_NetZone|_, that knows the networking path between one
58 resource to another. Each NetZone is included in another one, forming
59 a tree of NetZones which root zone contains the whole platform. The
60 actors can also be located on a |API_s4U_VirtualMachine|_ that may
61 restrict the activities it contains to a limited amount of cores.
62 Virtual machines can also be migrated between hosts.
64 The :ref:`simgrid::s4u::this_actor <API_s4u_this_actor>` namespace
65 provides many helper functions to simplify the code of actors.
67 - **Simulation Elements**
69 - :ref:`class Actor <API_s4u_Actor>`:
70 Active entities executing your application.
71 - :ref:`class Engine <API_s4u_Engine>`
72 Simulation engine (singleton).
73 - :ref:`class Mailbox <API_s4u_Mailbox>`
74 Communication rendezvous, with which actors meet each other.
78 - :ref:`class Disk <API_s4u_Disk>`
79 Resource on which actors can write and read data.
80 - :ref:`class Host <API_s4u_Host>`:
81 Actor location, providing computational power.
82 - :ref:`class Link <API_s4u_Link>`
83 Interconnecting hosts.
84 - :ref:`class NetZone <API_s4u_NetZone>`:
85 Sub-region of the platform, containing resources (Hosts, Links, etc).
86 - :ref:`class VirtualMachine <API_s4u_VirtualMachine>`:
87 Execution containers that can be moved between Hosts.
89 - **Activities** (:ref:`class Activity <API_s4u_Activity>`):
90 The things that actors can do on resources
92 - :ref:`class Comm <API_s4u_Comm>`
93 Communication activity, started on Mailboxes and consuming links.
94 - :ref:`class Exec <API_s4u_Exec>`
95 Computation activity, started on Host and consuming CPU resources.
96 - :ref:`class Io <API_s4u_Io>`
97 I/O activity, started on and consuming disks.
99 - **Synchronization Objects**: Classical IPC that actors can use
101 - :ref:`class Barrier <API_s4u_Barrier>`
102 - :ref:`class ConditionVariable <API_s4u_ConditionVariable>`
103 - :ref:`class Mutex <API_s4u_Mutex>`
104 - :ref:`class Semaphore <API_s4u_Semaphore>`
107 .. |API_s4u_Actors| replace:: **Actors**
108 .. _API_s4u_Actors: #api-s4u-actor
110 .. |API_s4u_Activities| replace:: **Activities**
111 .. _API_s4u_Activities: #api-s4u-activity
113 .. |API_s4u_Hosts| replace:: **Hosts**
114 .. _API_s4u_Hosts: #api-s4u-host
116 .. |API_s4u_Links| replace:: **Links**
117 .. _API_s4u_Links: #api-s4u-link
119 .. |API_s4u_Disks| replace:: **Disks**
120 .. _API_s4u_Disks: #api-s4u-disk
122 .. |API_s4u_VirtualMachine| replace:: **VirtualMachines**
124 .. |API_s4u_Host| replace:: **Host**
126 .. |API_s4u_Mailbox| replace:: **Mailbox**
128 .. |API_s4u_Mailboxes| replace:: **Mailboxes**
129 .. _API_s4u_Mailboxes: #s4u-mailbox
131 .. |API_s4u_NetZone| replace:: **NetZone**
133 .. |API_s4u_Barrier| replace:: **Barrier**
135 .. |API_s4u_Semaphore| replace:: **Semaphore**
137 .. |API_s4u_ConditionVariable| replace:: **ConditionVariable**
139 .. |API_s4u_Mutex| replace:: **Mutex**
146 Activities represent the actions that consume a resource, such as a
147 :ref:`Comm <API_s4u_Comm>` that consumes the *transmitting power* of
148 :ref:`Link <API_s4u_Link>` resources, or an :ref:`Exec <API_s4u_Exec>`
149 that consumes the *computing power* of :ref:`Host <API_s4u_Host>` resources.
150 See also the :ref:`full API <API_s4u_Activity>` below.
152 =======================
153 Asynchronous Activities
154 =======================
156 Every activity can be either **blocking** or **asynchronous**. For
157 example, :cpp:func:`s4u::Mailbox::put() <simgrid::s4u::Mailbox::put>`
158 and :cpp:func:`s4u::Mailbox::get() <simgrid::s4u::Mailbox::get>`
159 create blocking communications: the actor is blocked until the
160 completion of that communication. Asynchronous communications do not
161 block the actor during their execution but progress on their own.
163 Once your asynchronous activity is started, you can test for its
164 completion using :cpp:func:`s4u::Activity::test() <simgrid::s4u::Activity::test>`.
165 This function returns ``true`` if the activity is completed already.
166 You can also use :cpp:func:`s4u::Activity::wait() <simgrid::s4u::Activity::wait>`
167 to block until the completion of the activity. To wait for at most a given amount of time,
168 use :cpp:func:`s4u::Activity::wait_for() <simgrid::s4u::Activity::wait_for>`.
169 Finally, to wait at most until a specified time limit, use
170 :cpp:func:`s4u::Activity::wait_until() <simgrid::s4u::Activity::wait_until>`.
172 Every kind of activity can be asynchronous:
174 - :ref:`s4u::CommPtr <API_s4u_Comm>` are created with
175 :cpp:func:`s4u::Mailbox::put_async() <simgrid::s4u::Mailbox::put_async>` and
176 :cpp:func:`s4u::Mailbox::get_async() <simgrid::s4u::Mailbox::get_async>`.
177 - :ref:`s4u::IoPtr <API_s4u_Io>` are created with
178 :cpp:func:`s4u::Disk::read_async() <simgrid::s4u::Disk::read_async>` and
179 :cpp:func:`s4u::Disk::write_async() <simgrid::s4u::Disk::write_async>`.
180 - :ref:`s4u::ExecPtr <API_s4u_Exec>` are created with
181 :cpp:func:`s4u::Host::exec_async() <simgrid::s4u::Host::exec_async>`.
182 - In the future, it will become possible to have asynchronous IPC
183 such as asynchronous mutex lock requests.
185 The following example shows how to have several concurrent
186 communications ongoing. First, you have to declare a vector in which
187 we will store the ongoing communications. It is also useful to have a
190 .. literalinclude:: ../../examples/cpp/comm-waitall/s4u-comm-waitall.cpp
192 :start-after: init-begin
193 :end-before: init-end
196 Then, you start all the communications that should occur concurrently with
197 :cpp:func:`s4u::Mailbox::put_async() <simgrid::s4u::Mailbox::put_async>`.
198 Finally, the actor waits for the completion of all of them at once
200 :cpp:func:`s4u::Comm::wait_all() <simgrid::s4u::Comm::wait_all>`.
202 .. literalinclude:: ../../examples/cpp/comm-waitall/s4u-comm-waitall.cpp
204 :start-after: put-begin
209 =====================
210 Activities Life cycle
211 =====================
213 Sometimes, you want to change the setting of an activity before it even starts.
215 .. todo:: write this section
222 Please also refer to the :ref:`API reference for s4u::Mailbox
229 |API_s4u_Mailboxes|_ are rendezvous points for network communications,
230 similar to URLs on which you could post and retrieve data. Actually,
231 the mailboxes are not involved in the communication once it starts,
232 but only to find the contact with which you want to communicate.
234 They are similar to many common things: The phone number, which allows
235 the caller to find the receiver. The Twitter hashtag, which helps
236 senders and receivers to find each other. In TCP, the pair
237 ``{host name, host port}`` to which you can connect to find your peer.
238 In HTTP, URLs through which the clients can connect to the servers.
239 In ZeroMQ, the queues are used to match senders and receivers.
241 One big difference with most of these systems is that no actor is the
242 exclusive owner of a mailbox, neither in sending nor in receiving.
243 Many actors can send into and/or receive from the same mailbox. TCP
244 socket ports for example are shared on the sender side but exclusive
245 on the receiver side (only one process can receive from a given socket
246 at a given point of time).
248 A big difference with TCP sockets or MPI communications is that
249 communications do not start right away after a
250 :cpp:func:`Mailbox::put() <simgrid::s4u::Mailbox::put>`, but wait
251 for the corresponding :cpp:func:`Mailbox::get() <simgrid::s4u::Mailbox::get>`.
252 You can change this by :ref:`declaring a receiving actor <s4u_receiving_actor>`.
254 A big difference with Twitter hashtags is that SimGrid does not
255 offer easy support to broadcast a given message to many
256 receivers. So that would be like a Twitter tag where each message
257 is consumed by the first receiver.
259 A big difference with the ZeroMQ queues is that you cannot filter
260 on the data you want to get from the mailbox. To model such settings
261 in SimGrid, you'd have one mailbox per potential topic, and subscribe
262 to each topic individually with a
263 :cpp:func:`get_async() <simgrid::s4u::Mailbox::get_async>` on each mailbox.
264 Then, use :cpp:func:`Comm::wait_any() <simgrid::s4u::Comm::wait_any>`
265 to get the first message on any of the mailboxes you are subscribed to.
267 The mailboxes are not located on the network, and you can access
268 them without any latency. The network delays are only related to the
269 location of the sender and receiver once the match between them is
270 done on the mailbox. This is just like the phone number that you
271 can use locally, and the geographical distance only comes into play
272 once you start the communication by dialing this number.
274 =====================
275 How to use Mailboxes?
276 =====================
278 You can retrieve any existing mailbox from its name (which is a
279 unique string, just like a Twitter tag). This results in a
280 versatile tool that can be used to build many different
283 To model classical socket communications, use "hostname:port" as
284 mailbox names, and make sure that only one actor reads into a given
285 mailbox. This does not make it easy to build a perfectly realistic
286 model of the TCP sockets, but in most cases, this system is too
287 cumbersome for your simulations anyway. You probably want something
288 simpler, that turns out to be easy to build with the mailboxes.
290 Many SimGrid examples use a sort of yellow page system where the
291 mailbox names are the name of the service (such as "worker",
292 "master", or "reducer"). That way, you don't have to know where your
293 peer is located to contact it. You don't even need its name. Its
294 function is enough for that. This also gives you some sort of load
295 balancing for free if more than one actor pulls from the mailbox:
296 the first actor that can deal with the request will handle it.
298 =========================================
299 How are put() and get() requests matched?
300 =========================================
302 The matching algorithm simple: first come, first serve. When a new
303 send arrives, it matches the oldest enqueued receive. If no receive is
304 currently enqueued, then the incoming send is enqueued. As you can
305 see, the mailbox cannot contain both send and receive requests: all
306 enqueued requests must be of the same sort.
308 .. _s4u_receiving_actor:
310 ===========================
311 Declaring a Receiving Actor
312 ===========================
314 The last twist is that by default in the simulator, the data starts
315 to be exchanged only when both the sender and the receiver are
316 announced (it waits until both :cpp:func:`put() <simgrid::s4u::Mailbox::put()>`
317 and :cpp:func:`get() <simgrid::s4u::Mailbox::get()>` are posted).
318 In TCP, since you establish connections beforehand, the data starts to
319 flow as soon as the sender posts it, even if the receiver did not post
320 its :cpp:func:`put() <simgrid::s4u::Mailbox::put()>` yet.
322 To model this in SimGrid, you can declare a specific receiver to a
323 given mailbox (with the function
324 :cpp:func:`set_receiver() <simgrid::s4u::Mailbox::set_receiver()>`).
325 That way, any :cpp:func:`put() <simgrid::s4u::Mailbox::put()>`
326 posted to that mailbox will start as soon as possible, and the data
327 will already be there on the receiver host when the receiver actor
328 posts its :cpp:func:`get() <simgrid::s4u::Mailbox::get()>`
330 Note that being permanent receivers of a mailbox prevents actors to be
331 garbage-collected. If your simulation creates many short-lived actors
332 that are marked as permanent receiver, you should call
333 ``mailbox->set_receiver(nullptr)`` by the end of the actors so that their
334 memory gets properly reclaimed. This call should be at the end of the
335 actor's function, not in an on_exit callback.
342 For sake of simplicity, we use `RAII
343 <https://en.wikipedia.org/wiki/Resource_Acquisition_Is_Initialization>`_
344 for many classes in S4U. This is an idiom where resources are automatically
345 managed through the context. Provided that you never manipulate
346 objects of type Foo directly but always FooPtr references (which are
347 defined as `boost::intrusive_ptr
348 <http://www.boost.org/doc/libs/1_61_0/libs/smart_ptr/intrusive_ptr.html>`_
349 <Foo>), you will never have to explicitly release the resource that
350 you use nor to free the memory of unused objects.
351 Here is a little example:
357 simgrid::s4u::MutexPtr mutex = simgrid::s4u::Mutex::create(); // Too bad we cannot use `new`
359 mutex->lock(); // use the mutex as a simple reference
363 } // The mutex gets automatically freed because the only existing reference gets out of scope
365 Note that Mailboxes, Hosts, and Links are not handled through smart
366 pointers (yet?). This means that it is currently impossible to destroy a
367 mailbox or a link. You can still destroy a host (but probably
368 shouldn't), using :cpp:func:`simgrid::s4u::Host::destroy`.
372 .. include:: ../../examples/README.rst
377 .. _API_s4u_simulation_object:
389 .. doxygenclass:: simgrid::s4u::Actor
391 .. doxygentypedef:: aid_t
402 #include <simgrid/s4u/Actor.hpp>
404 .. doxygentypedef:: ActorPtr
406 .. group-tab:: Python
410 from simgrid import Actor
416 #include <simgrid/actor.h>
418 .. doxygentypedef:: sg_actor_t
419 .. cpp:type:: const s4u_Actor* const_sg_actor_t
421 Pointer to a constant actor object.
423 .. doxygenfunction:: sg_actor_ref
424 .. doxygenfunction:: sg_actor_unref
434 .. doxygenfunction:: simgrid::s4u::Actor::create(const std::string &name, s4u::Host *host, const std::function< void()> &code)
435 .. doxygenfunction:: simgrid::s4u::Actor::create(const std::string &name, s4u::Host *host, F code)
436 .. doxygenfunction:: simgrid::s4u::Actor::create(const std::string &name, s4u::Host *host, F code, Args... args)
437 .. doxygenfunction:: simgrid::s4u::Actor::create(const std::string &name, s4u::Host *host, const std::string &function, std::vector< std::string > args)
439 .. doxygenfunction:: simgrid::s4u::Actor::init(const std::string &name, s4u::Host *host)
440 .. doxygenfunction:: simgrid::s4u::Actor::start(const std::function< void()> &code)
442 .. group-tab:: Python
444 .. automethod:: simgrid.Actor.create
448 .. doxygenfunction:: sg_actor_create(const char *name, sg_host_t host, xbt_main_func_t code, int argc, const char *const *argv)
449 .. doxygenfunction:: sg_actor_init(const char *name, sg_host_t host)
450 .. doxygenfunction:: sg_actor_start(sg_actor_t actor, xbt_main_func_t code, int argc, const char *const *argv)
452 .. doxygenfunction:: sg_actor_attach(const char *name, void *data, sg_host_t host, xbt_dict_t properties)
453 .. doxygenfunction:: sg_actor_detach()
462 .. doxygenfunction:: simgrid::s4u::Actor::by_pid(aid_t pid)
463 .. doxygenfunction:: simgrid::s4u::Actor::self()
465 .. group-tab:: Python
467 .. automethod:: simgrid.Actor.by_pid
468 .. automethod:: simgrid.Actor.self
472 .. doxygenfunction:: sg_actor_by_PID(aid_t pid)
473 .. doxygenfunction:: sg_actor_self()
482 .. doxygenfunction:: simgrid::s4u::Actor::get_cname
483 .. doxygenfunction:: simgrid::s4u::Actor::get_name
484 .. doxygenfunction:: simgrid::s4u::Actor::get_pid
485 .. doxygenfunction:: simgrid::s4u::Actor::get_ppid
486 .. doxygenfunction:: simgrid::s4u::Actor::get_properties() const
487 .. doxygenfunction:: simgrid::s4u::Actor::get_property(const std::string &key) const
488 .. doxygenfunction:: simgrid::s4u::Actor::set_property(const std::string &key, const std::string &value)
490 .. doxygenfunction:: simgrid::s4u::Actor::get_host
491 .. doxygenfunction:: simgrid::s4u::Actor::set_host
493 .. doxygenfunction:: simgrid::s4u::Actor::get_refcount
494 .. doxygenfunction:: simgrid::s4u::Actor::get_impl
496 .. group-tab:: Python
498 .. autoattribute:: simgrid.Actor.name
499 .. autoattribute:: simgrid.Actor.host
500 .. autoattribute:: simgrid.Actor.pid
501 .. autoattribute:: simgrid.Actor.ppid
505 .. doxygenfunction:: sg_actor_get_name(const_sg_actor_t actor)
506 .. doxygenfunction:: sg_actor_get_PID(const_sg_actor_t actor)
507 .. doxygenfunction:: sg_actor_get_PPID(const_sg_actor_t actor)
508 .. doxygenfunction:: sg_actor_get_properties(const_sg_actor_t actor)
509 .. doxygenfunction:: sg_actor_get_property_value(const_sg_actor_t actor, const char *name)
511 .. doxygenfunction:: sg_actor_get_host(const_sg_actor_t actor)
512 .. doxygenfunction:: sg_actor_set_host(sg_actor_t actor, sg_host_t host)
514 .. doxygenfunction:: sg_actor_get_data(const_sg_actor_t actor)
515 .. doxygenfunction:: sg_actor_set_data(sg_actor_t actor, void *userdata)
517 Suspending and resuming actors
518 ------------------------------
524 .. doxygenfunction:: simgrid::s4u::Actor::suspend()
525 .. doxygenfunction:: simgrid::s4u::Actor::resume()
526 .. doxygenfunction:: simgrid::s4u::Actor::is_suspended
528 .. group-tab:: Python
530 .. automethod:: simgrid.Actor.resume
531 .. automethod:: simgrid.Actor.suspend
532 .. automethod:: simgrid.Actor.is_suspended
536 .. doxygenfunction:: sg_actor_suspend(sg_actor_t actor)
537 .. doxygenfunction:: sg_actor_resume(sg_actor_t actor)
538 .. doxygenfunction:: sg_actor_is_suspended(const_sg_actor_t actor)
540 Specifying when actors should terminate
541 ---------------------------------------
547 .. doxygenfunction:: simgrid::s4u::Actor::kill()
548 .. doxygenfunction:: simgrid::s4u::Actor::kill_all()
549 .. doxygenfunction:: simgrid::s4u::Actor::set_kill_time(double time)
550 .. doxygenfunction:: simgrid::s4u::Actor::get_kill_time
552 .. doxygenfunction:: simgrid::s4u::Actor::restart()
553 .. doxygenfunction:: simgrid::s4u::Actor::daemonize()
554 .. doxygenfunction:: simgrid::s4u::Actor::is_daemon
556 .. group-tab:: Python
558 .. automethod:: simgrid.Actor.kill
559 .. automethod:: simgrid.Actor.kill_all
561 .. automethod:: simgrid.Actor.daemonize
562 .. automethod:: simgrid.Actor.is_daemon
566 .. doxygenfunction:: sg_actor_kill(sg_actor_t actor)
567 .. doxygenfunction:: sg_actor_kill_all()
568 .. doxygenfunction:: sg_actor_set_kill_time(sg_actor_t actor, double kill_time)
570 .. doxygenfunction:: sg_actor_restart(sg_actor_t actor)
571 .. doxygenfunction:: sg_actor_daemonize(sg_actor_t actor)
572 .. doxygenfunction:: sg_actor_is_daemon
574 .. _API_s4u_Actor_end:
576 Reacting to the end of actors
577 -----------------------------
583 .. doxygenfunction:: simgrid::s4u::Actor::on_exit
584 .. doxygenfunction:: simgrid::s4u::Actor::join() const
585 .. doxygenfunction:: simgrid::s4u::Actor::join(double timeout) const
586 .. doxygenfunction:: simgrid::s4u::Actor::set_auto_restart(bool autorestart)
588 .. group-tab:: Python
590 .. automethod:: simgrid.Actor.join
594 .. doxygenfunction:: sg_actor_join(const_sg_actor_t actor, double timeout)
595 .. doxygenfunction:: sg_actor_set_auto_restart(sg_actor_t actor, int auto_restart)
604 .. doxygenvariable:: simgrid::s4u::Actor::on_creation
605 .. doxygenvariable:: simgrid::s4u::Actor::on_suspend
606 .. doxygenvariable:: simgrid::s4u::Actor::on_host_change
607 .. doxygenvariable:: simgrid::s4u::Actor::on_resume
608 .. doxygenvariable:: simgrid::s4u::Actor::on_sleep
609 .. doxygenvariable:: simgrid::s4u::Actor::on_wake_up
610 .. doxygenvariable:: simgrid::s4u::Actor::on_termination
611 .. doxygenvariable:: simgrid::s4u::Actor::on_destruction
613 .. _API_s4u_this_actor:
619 These functions can be used in your user code to interact with the actor
620 currently running (the one retrieved with :cpp:func:`simgrid::s4u::Actor::self`).
621 Using these functions can greatly improve the code readability.
630 .. doxygenfunction:: simgrid::s4u::this_actor::get_cname()
631 .. doxygenfunction:: simgrid::s4u::this_actor::get_name()
632 .. doxygenfunction:: simgrid::s4u::this_actor::get_pid()
633 .. doxygenfunction:: simgrid::s4u::this_actor::get_ppid()
634 .. doxygenfunction:: simgrid::s4u::this_actor::is_maestro()
636 .. doxygenfunction:: simgrid::s4u::this_actor::get_host()
637 .. doxygenfunction:: simgrid::s4u::this_actor::set_host(Host *new_host)
639 .. group-tab:: Python
641 .. autofunction:: simgrid.this_actor.get_host
642 .. autofunction:: simgrid.this_actor.set_host
646 .. doxygenfunction:: sg_actor_self_get_data()
647 .. doxygenfunction:: sg_actor_self_set_data(void *data)
648 .. doxygenfunction:: sg_actor_self_get_name()
649 .. doxygenfunction:: sg_actor_self_get_pid()
650 .. doxygenfunction:: sg_actor_self_get_ppid()
651 .. doxygenfunction:: sg_host_self()
652 .. doxygenfunction:: sg_host_self_get_name()
654 Suspending and resuming
655 -----------------------
661 .. doxygenfunction:: simgrid::s4u::this_actor::suspend()
662 .. doxygenfunction:: simgrid::s4u::this_actor::yield()
664 .. group-tab:: Python
666 .. autofunction:: simgrid.this_actor.suspend
667 .. autofunction:: simgrid.this_actor.yield_
671 .. doxygenfunction:: sg_actor_yield()
678 .. group-tab:: Python
680 .. autofunction:: simgrid.this_actor.info
681 .. autofunction:: simgrid.this_actor.error
690 .. doxygenfunction:: simgrid::s4u::this_actor::sleep_for(double duration)
691 .. doxygenfunction:: simgrid::s4u::this_actor::sleep_for(std::chrono::duration< Rep, Period > duration)
692 .. doxygenfunction:: simgrid::s4u::this_actor::sleep_until(const SimulationTimePoint< Duration > &wakeup_time)
693 .. doxygenfunction:: simgrid::s4u::this_actor::sleep_until(double wakeup_time)
695 .. group-tab:: Python
697 .. autofunction:: simgrid.this_actor.sleep_for
698 .. autofunction:: simgrid.this_actor.sleep_until
702 .. doxygenfunction:: sg_actor_sleep_for(double duration)
704 Simulating executions
705 ---------------------
707 Simulate the execution of some code on this actor. You can either simulate
708 parallel or sequential code and you can either block upon the termination of
709 the execution, or start an asynchronous activity.
715 .. doxygenfunction:: simgrid::s4u::this_actor::exec_async
716 .. doxygenfunction:: simgrid::s4u::this_actor::exec_init(const std::vector< s4u::Host * > &hosts, const std::vector< double > &flops_amounts, const std::vector< double > &bytes_amounts)
717 .. doxygenfunction:: simgrid::s4u::this_actor::exec_init(double flops_amounts)
718 .. doxygenfunction:: simgrid::s4u::this_actor::execute(double flop)
719 .. doxygenfunction:: simgrid::s4u::this_actor::execute(double flop, double priority)
720 .. doxygenfunction:: simgrid::s4u::this_actor::parallel_execute(const std::vector< s4u::Host * > &hosts, const std::vector< double > &flops_amounts, const std::vector< double > &bytes_amounts)
721 .. doxygenfunction:: simgrid::s4u::this_actor::parallel_execute(const std::vector< s4u::Host * > &hosts, const std::vector< double > &flops_amounts, const std::vector< double > &bytes_amounts, double timeout)
723 .. group-tab:: Python
725 .. autofunction:: simgrid.this_actor.exec_init
726 .. autofunction:: simgrid.this_actor.execute
730 .. doxygenfunction:: sg_actor_execute(double flops)
731 .. doxygenfunction:: sg_actor_execute_with_priority(double flops, double priority)
732 .. doxygenfunction:: sg_actor_exec_init(double computation_amount)
733 .. doxygenfunction:: sg_actor_exec_async(double computation_amount)
734 .. doxygenfunction:: sg_actor_parallel_exec_init(int host_nb, const sg_host_t* host_list, double* flops_amount, double* bytes_amount);
743 .. doxygenfunction:: simgrid::s4u::this_actor::exit()
744 .. doxygenfunction:: simgrid::s4u::this_actor::on_exit(const std::function< void(bool)> &fun)
746 .. group-tab:: Python
748 .. autofunction:: simgrid.this_actor.exit
749 .. autofunction:: simgrid.this_actor.on_exit
757 .. doxygenclass:: simgrid::s4u::Engine
766 .. doxygenfunction:: simgrid::s4u::Engine::Engine(int *argc, char **argv)
767 .. doxygenfunction:: simgrid::s4u::Engine::is_initialized()
768 .. doxygenfunction:: simgrid::s4u::Engine::shutdown()
769 .. doxygenfunction:: simgrid::s4u::Engine::set_config(const std::string &str)
770 .. doxygenfunction:: simgrid::s4u::Engine::set_config(const std::string &name, bool value)
771 .. doxygenfunction:: simgrid::s4u::Engine::set_config(const std::string &name, double value)
772 .. doxygenfunction:: simgrid::s4u::Engine::set_config(const std::string &name, int value)
773 .. doxygenfunction:: simgrid::s4u::Engine::set_config(const std::string &name, const std::string &value)
775 .. doxygenfunction:: simgrid::s4u::Engine::load_deployment
776 .. doxygenfunction:: simgrid::s4u::Engine::load_platform
777 .. doxygenfunction:: simgrid::s4u::Engine::register_actor(const std::string &name)
778 .. doxygenfunction:: simgrid::s4u::Engine::register_actor(const std::string &name, F code)
779 .. doxygenfunction:: simgrid::s4u::Engine::register_default(const std::function< void(int, char **)> &code)
780 .. doxygenfunction:: simgrid::s4u::Engine::register_default(const kernel::actor::ActorCodeFactory &factory)
782 .. doxygenfunction:: simgrid::s4u::Engine::register_function(const std::string &name, const std::function< void(int, char **)> &code)
783 .. doxygenfunction:: simgrid::s4u::Engine::register_function(const std::string &name, const std::function< void(std::vector< std::string >)> &code)
784 .. doxygenfunction:: simgrid::s4u::Engine::register_function(const std::string &name, const kernel::actor::ActorCodeFactory &factory)
786 .. group-tab:: Python
788 .. automethod:: simgrid.Engine.load_deployment
789 .. automethod:: simgrid.Engine.load_platform
790 .. automethod:: simgrid.Engine.register_actor
794 .. doxygenfunction:: simgrid_init
796 .. doxygenfunction:: simgrid_load_deployment
797 .. doxygenfunction:: simgrid_load_platform
798 .. doxygenfunction:: simgrid_register_default
799 .. doxygenfunction:: simgrid_register_function
808 .. doxygenfunction:: simgrid::s4u::Engine::get_clock()
809 .. doxygenfunction:: simgrid::s4u::Engine::run
811 .. group-tab:: Python
813 .. automethod:: simgrid.Engine.get_clock
814 .. automethod:: simgrid.Engine.run
818 .. doxygenfunction:: simgrid_get_clock
819 .. doxygenfunction:: simgrid_run
828 .. doxygenfunction:: simgrid::s4u::Engine::get_actor_count
829 .. doxygenfunction:: simgrid::s4u::Engine::get_all_actors
830 .. doxygenfunction:: simgrid::s4u::Engine::get_filtered_actors
834 .. doxygenfunction:: simgrid_get_actor_count()
843 .. doxygenfunction:: simgrid::s4u::Engine::get_all_hosts
844 .. doxygenfunction:: simgrid::s4u::Engine::get_host_count
845 .. doxygenfunction:: simgrid::s4u::Engine::get_filtered_hosts
846 .. doxygenfunction:: simgrid::s4u::Engine::host_by_name
847 .. doxygenfunction:: simgrid::s4u::Engine::host_by_name_or_null
849 .. group-tab:: Python
851 .. automethod:: simgrid.Engine.get_all_hosts
855 See also :cpp:func:`sg_host_list` and :cpp:func:`sg_host_count`.
864 .. doxygenfunction:: simgrid::s4u::Engine::get_all_links
865 .. doxygenfunction:: simgrid::s4u::Engine::get_link_count
866 .. doxygenfunction:: simgrid::s4u::Engine::get_filtered_links
867 .. doxygenfunction:: simgrid::s4u::Engine::link_by_name
868 .. doxygenfunction:: simgrid::s4u::Engine::link_by_name_or_null
870 Interacting with the routing
871 ----------------------------
877 .. doxygenfunction:: simgrid::s4u::Engine::get_all_netpoints
878 .. doxygenfunction:: simgrid::s4u::Engine::get_filtered_netzones
879 .. doxygenfunction:: simgrid::s4u::Engine::get_instance()
880 .. doxygenfunction:: simgrid::s4u::Engine::get_netzone_root
881 .. doxygenfunction:: simgrid::s4u::Engine::netpoint_by_name_or_null
882 .. doxygenfunction:: simgrid::s4u::Engine::netzone_by_name_or_null
883 .. doxygenfunction:: simgrid::s4u::Engine::set_netzone_root(const NetZone *netzone)
892 .. doxygenvariable:: simgrid::s4u::Engine::on_deadlock
893 .. doxygenvariable:: simgrid::s4u::Engine::on_platform_created
894 .. doxygenvariable:: simgrid::s4u::Engine::on_platform_creation
895 .. doxygenvariable:: simgrid::s4u::Engine::on_simulation_end
896 .. doxygenvariable:: simgrid::s4u::Engine::on_time_advance
904 .. doxygenclass:: simgrid::s4u::Mailbox
906 Please also refer to the :ref:`full doc on s4u::Mailbox <s4u_mailbox>`.
917 #include <simgrid/s4u/Mailbox.hpp>
919 Note that there is no MailboxPtr type and that you cannot use the RAII
920 idiom on mailboxes because they are internal objects to the simulation
921 engine. Once created, there is no way to destroy a mailbox before the end
924 .. doxygenfunction:: simgrid::s4u::Mailbox::by_name(const std::string &name)
926 .. group-tab:: Python
928 .. automethod:: simgrid.Mailbox.by_name
932 #include <simgrid/s4u/mailbox.h>
934 .. doxygenfunction:: sg_mailbox_by_name(const char *alias)
945 .. doxygenfunction:: simgrid::s4u::Mailbox::get_cname
946 .. doxygenfunction:: simgrid::s4u::Mailbox::get_name
948 .. group-tab:: Python
950 .. autoattribute:: simgrid.Mailbox.name
959 .. doxygenfunction:: simgrid::s4u::Mailbox::put(void *payload, uint64_t simulated_size_in_bytes)
960 .. doxygenfunction:: simgrid::s4u::Mailbox::put(void *payload, uint64_t simulated_size_in_bytes, double timeout)
961 .. doxygenfunction:: simgrid::s4u::Mailbox::put_async(void *data, uint64_t simulated_size_in_bytes)
962 .. doxygenfunction:: simgrid::s4u::Mailbox::put_init()
963 .. doxygenfunction:: simgrid::s4u::Mailbox::put_init(void *data, uint64_t simulated_size_in_bytes)
965 .. group-tab:: Python
967 .. automethod:: simgrid.Mailbox.put
968 .. automethod:: simgrid.Mailbox.put_async
972 .. doxygenfunction:: sg_mailbox_put(sg_mailbox_t mailbox, void *payload, long simulated_size_in_bytes)
973 .. doxygenfunction:: sg_mailbox_put_init(sg_mailbox_t mailbox, void *payload, long simulated_size_in_bytes)
974 .. doxygenfunction:: sg_mailbox_put_async(sg_mailbox_t mailbox, void *payload, long simulated_size_in_bytes)
984 .. doxygenfunction:: simgrid::s4u::Mailbox::empty
985 .. doxygenfunction:: simgrid::s4u::Mailbox::front
986 .. doxygenfunction:: simgrid::s4u::Mailbox::get()
987 .. doxygenfunction:: simgrid::s4u::Mailbox::get(double timeout)
988 .. doxygenfunction:: simgrid::s4u::Mailbox::get_async(T **data)
989 .. doxygenfunction:: simgrid::s4u::Mailbox::get_init()
990 .. doxygenfunction:: simgrid::s4u::Mailbox::iprobe(int type, bool(*match_fun)(void *, void *, kernel::activity::CommImpl *), void *data)
991 .. doxygenfunction:: simgrid::s4u::Mailbox::listen
992 .. doxygenfunction:: simgrid::s4u::Mailbox::ready
994 .. group-tab:: Python
996 .. automethod:: simgrid.Mailbox.get
1000 .. doxygenfunction:: sg_mailbox_get(sg_mailbox_t mailbox)
1001 .. doxygenfunction:: sg_mailbox_get_async(sg_mailbox_t mailbox, void **data)
1002 .. doxygenfunction:: sg_mailbox_get_name(const_sg_mailbox_t mailbox)
1003 .. doxygenfunction:: sg_mailbox_listen(const char *alias)
1008 See :ref:`s4u_receiving_actor`.
1014 .. doxygenfunction:: simgrid::s4u::Mailbox::get_receiver
1015 .. doxygenfunction:: simgrid::s4u::Mailbox::set_receiver(ActorPtr actor)
1019 .. doxygenfunction:: sg_mailbox_set_receiver(const char *alias)
1021 .. _API_s4u_Resource:
1033 .. doxygenclass:: simgrid::s4u::Disk
1044 #include <simgrid/s4u/Disk.hpp>
1046 Note that there is no DiskPtr type and that you cannot use the RAII
1047 idiom on disks because SimGrid does not allow (yet) to create nor
1048 destroy resources once the simulation is started.
1058 .. doxygenfunction:: simgrid::s4u::Disk::get_cname() const
1059 .. doxygenfunction:: simgrid::s4u::Disk::get_host() const
1060 .. doxygenfunction:: simgrid::s4u::Disk::get_name() const
1061 .. doxygenfunction:: simgrid::s4u::Disk::get_properties() const
1062 .. doxygenfunction:: simgrid::s4u::Disk::get_property(const std::string &key) const
1063 .. doxygenfunction:: simgrid::s4u::Disk::get_read_bandwidth() const
1064 .. doxygenfunction:: simgrid::s4u::Disk::get_write_bandwidth() const
1065 .. doxygenfunction:: simgrid::s4u::Disk::set_property(const std::string &, const std::string &value)
1074 .. doxygenfunction:: simgrid::s4u::Disk::io_init(sg_size_t size, s4u::Io::OpType type)
1075 .. doxygenfunction:: simgrid::s4u::Disk::read(sg_size_t size)
1076 .. doxygenfunction:: simgrid::s4u::Disk::read_async(sg_size_t size)
1077 .. doxygenfunction:: simgrid::s4u::Disk::write(sg_size_t size)
1078 .. doxygenfunction:: simgrid::s4u::Disk::write_async(sg_size_t size)
1087 .. doxygenvariable:: simgrid::s4u::Disk::on_creation
1088 .. doxygenvariable:: simgrid::s4u::Disk::on_destruction
1089 .. doxygenvariable:: simgrid::s4u::Disk::on_state_change
1098 .. doxygenclass:: simgrid::s4u::Host
1109 #include <simgrid/s4u/Host.hpp>
1111 Note that there is no HostPtr type, and that you cannot use the RAII
1112 idiom on hosts because SimGrid does not allow (yet) to create nor
1113 destroy resources once the simulation is started.
1115 .. doxygenfunction:: simgrid::s4u::Host::destroy()
1117 .. group-tab:: Python
1121 from simgrid import Host
1127 #include <simgrid/host.h>
1129 .. doxygentypedef:: sg_host_t
1130 .. cpp:type:: const s4u_Host* const_sg_host_t
1132 Pointer to a constant host object.
1141 See also :cpp:func:`simgrid::s4u::Engine::get_all_hosts`.
1143 .. doxygenfunction:: simgrid::s4u::Host::by_name(const std::string &name)
1144 .. doxygenfunction:: simgrid::s4u::Host::by_name_or_null(const std::string &name)
1145 .. doxygenfunction:: simgrid::s4u::Host::current()
1147 .. group-tab:: Python
1149 See also :py:func:`simgrid.Engine.get_all_hosts`.
1151 .. automethod:: simgrid.Host.by_name
1152 .. automethod:: simgrid.Host.current
1156 .. doxygenfunction:: sg_host_by_name(const char *name)
1157 .. doxygenfunction:: sg_host_count()
1158 .. doxygenfunction:: sg_host_list()
1159 .. doxygenfunction:: sg_hosts_as_dynar()
1168 .. doxygenfunction:: simgrid::s4u::Host::get_cname() const
1169 .. doxygenfunction:: simgrid::s4u::Host::get_core_count() const
1170 .. doxygenfunction:: simgrid::s4u::Host::get_name() const
1171 .. doxygenfunction:: simgrid::s4u::Host::get_available_speed() const
1172 .. doxygenfunction:: simgrid::s4u::Host::get_load() const
1173 .. doxygenfunction:: simgrid::s4u::Host::get_speed() const
1175 .. group-tab:: Python
1177 .. autoattribute:: simgrid.Host.name
1178 .. autoattribute:: simgrid.Host.load
1179 .. autoattribute:: simgrid.Host.pstate
1180 .. autoattribute:: simgrid.Host.speed
1184 .. doxygenfunction:: sg_host_core_count(const_sg_host_t host)
1185 .. doxygenfunction:: sg_host_dump(const_sg_host_t ws)
1186 .. doxygenfunction:: sg_host_get_name(const_sg_host_t host)
1187 .. doxygenfunction:: sg_host_get_load(const_sg_host_t host)
1188 .. doxygenfunction:: sg_host_get_speed(const_sg_host_t host)
1190 User data and properties
1191 ------------------------
1197 .. doxygenfunction:: simgrid::s4u::Host::get_properties() const
1198 .. doxygenfunction:: simgrid::s4u::Host::get_property(const std::string &key) const
1199 .. doxygenfunction:: simgrid::s4u::Host::set_properties(const std::unordered_map< std::string, std::string > &properties)
1200 .. doxygenfunction:: simgrid::s4u::Host::set_property(const std::string &key, const std::string &value)
1204 .. doxygenfunction:: sg_host_set_property_value(sg_host_t host, const char *name, const char *value)
1205 .. doxygenfunction:: sg_host_get_properties(const_sg_host_t host)
1206 .. doxygenfunction:: sg_host_get_property_value(const_sg_host_t host, const char *name)
1207 .. doxygenfunction:: sg_host_extension_create(void(*deleter)(void *))
1208 .. doxygenfunction:: sg_host_extension_get(const_sg_host_t host, size_t rank)
1210 Retrieving components
1211 ---------------------
1217 .. doxygenfunction:: simgrid::s4u::Host::add_disk(const Disk *disk)
1218 .. doxygenfunction:: simgrid::s4u::Host::get_actor_count() const
1219 .. doxygenfunction:: simgrid::s4u::Host::get_all_actors() const
1220 .. doxygenfunction:: simgrid::s4u::Host::get_disks() const
1221 .. doxygenfunction:: simgrid::s4u::Host::remove_disk(const std::string &disk_name)
1225 .. doxygenfunction:: sg_host_get_actor_list(const_sg_host_t host, xbt_dynar_t whereto)
1234 .. doxygenfunction:: simgrid::s4u::Host::is_on() const
1235 .. doxygenfunction:: simgrid::s4u::Host::turn_off()
1236 .. doxygenfunction:: simgrid::s4u::Host::turn_on()
1240 .. doxygenfunction:: sg_host_is_on(const_sg_host_t host)
1241 .. doxygenfunction:: sg_host_turn_off(sg_host_t host)
1242 .. doxygenfunction:: sg_host_turn_on(sg_host_t host)
1251 .. doxygenfunction:: simgrid::s4u::Host::get_pstate() const
1252 .. doxygenfunction:: simgrid::s4u::Host::get_pstate_count() const
1253 .. doxygenfunction:: simgrid::s4u::Host::get_pstate_speed(int pstate_index) const
1254 .. doxygenfunction:: simgrid::s4u::Host::set_pstate(int pstate_index)
1255 .. doxygenfunction:: simgrid::s4u::Host::set_speed_profile(kernel::profile::Profile *p)
1256 .. doxygenfunction:: simgrid::s4u::Host::set_state_profile(kernel::profile::Profile *p)
1258 .. group-tab:: Python
1260 .. automethod:: simgrid.Host.get_pstate_count
1261 .. automethod:: simgrid.Host.get_pstate_speed
1265 .. doxygenfunction:: sg_host_get_available_speed(const_sg_host_t host)
1266 .. doxygenfunction:: sg_host_get_nb_pstates(const_sg_host_t host)
1267 .. doxygenfunction:: sg_host_get_pstate(const_sg_host_t host)
1268 .. doxygenfunction:: sg_host_get_pstate_speed(const_sg_host_t host, int pstate_index)
1269 .. doxygenfunction:: sg_host_set_pstate(sg_host_t host, int pstate)
1278 .. doxygenfunction:: simgrid::s4u::Host::exec_async
1279 .. doxygenfunction:: simgrid::s4u::Host::execute(double flops) const
1280 .. doxygenfunction:: simgrid::s4u::Host::execute(double flops, double priority) const
1282 Platform and routing
1283 --------------------
1289 .. doxygenfunction:: simgrid::s4u::Host::get_englobing_zone()
1290 .. doxygenfunction:: simgrid::s4u::Host::get_netpoint() const
1291 .. doxygenfunction:: simgrid::s4u::Host::route_to(const Host *dest, std::vector< Link * > &links, double *latency) const
1292 .. doxygenfunction:: simgrid::s4u::Host::route_to(const Host *dest, std::vector< kernel::resource::LinkImpl * > &links, double *latency) const
1293 .. doxygenfunction:: simgrid::s4u::Host::sendto(Host *dest, double byte_amount)
1294 .. doxygenfunction:: simgrid::s4u::Host::sendto_async(Host *dest, double byte_amount)
1298 .. doxygenfunction:: sg_host_get_route(const_sg_host_t from, const_sg_host_t to, xbt_dynar_t links)
1299 .. doxygenfunction:: sg_host_get_route_bandwidth(const_sg_host_t from, const_sg_host_t to)
1300 .. doxygenfunction:: sg_host_get_route_latency(const_sg_host_t from, const_sg_host_t to)
1301 .. doxygenfunction:: sg_host_sendto(sg_host_t from, sg_host_t to, double byte_amount)
1310 .. doxygenvariable:: simgrid::s4u::Host::on_creation
1311 .. doxygenvariable:: simgrid::s4u::Host::on_destruction
1312 .. doxygenvariable:: simgrid::s4u::Host::on_speed_change
1313 .. doxygenvariable:: simgrid::s4u::Host::on_state_change
1321 .. doxygenclass:: simgrid::s4u::Link
1332 #include <simgrid/s4u/Link.hpp>
1334 Note that there is no LinkPtr type and that you cannot use the RAII
1335 idiom on hosts because SimGrid does not allow (yet) to create nor
1336 destroy resources once the simulation is started.
1338 .. group-tab:: Python
1342 from simgrid import Link
1348 #include <simgrid/link.h>
1350 .. doxygentypedef:: sg_link_t
1351 .. cpp:type:: const s4u_Link* const_sg_link_t
1353 Pointer to a constant link object.
1362 See also :cpp:func:`simgrid::s4u::Engine::get_all_links`.
1364 .. doxygenfunction:: simgrid::s4u::Link::by_name(const std::string &name)
1365 .. doxygenfunction:: simgrid::s4u::Link::by_name_or_null(const std::string &name)
1369 .. doxygenfunction:: sg_link_by_name(const char *name)
1370 .. doxygenfunction:: sg_link_count()
1371 .. doxygenfunction:: sg_link_list()
1380 .. doxygenfunction:: simgrid::s4u::Link::get_bandwidth() const
1381 .. doxygenfunction:: simgrid::s4u::Link::get_cname() const
1382 .. doxygenfunction:: simgrid::s4u::Link::get_latency() const
1383 .. doxygenfunction:: simgrid::s4u::Link::get_name() const
1384 .. doxygenfunction:: simgrid::s4u::Link::get_sharing_policy() const
1385 .. doxygenfunction:: simgrid::s4u::Link::get_usage() const
1386 .. doxygenfunction:: simgrid::s4u::Link::is_used() const
1390 .. doxygenfunction:: sg_link_get_bandwidth(const_sg_link_t link)
1391 .. doxygenfunction:: sg_link_get_latency(const_sg_link_t link)
1392 .. doxygenfunction:: sg_link_get_name(const_sg_link_t link)
1393 .. doxygenfunction:: sg_link_is_shared(const_sg_link_t link)
1395 Modifying characteristics
1396 -------------------------
1402 .. doxygenfunction:: simgrid::s4u::Link::set_bandwidth(double value)
1403 .. doxygenfunction:: simgrid::s4u::Link::set_latency(double value)
1407 .. doxygenfunction:: sg_link_set_bandwidth(sg_link_t link, double value)
1408 .. doxygenfunction:: sg_link_set_latency(sg_link_t link, double value)
1410 User data and properties
1411 ------------------------
1417 .. doxygenfunction:: simgrid::s4u::Link::get_property(const std::string &key) const
1418 .. doxygenfunction:: simgrid::s4u::Link::set_property(const std::string &key, const std::string &value)
1422 .. doxygenfunction:: sg_link_get_data(const_sg_link_t link)
1423 .. doxygenfunction:: sg_link_set_data(sg_link_t link, void *data)
1432 See also :cpp:func:`simgrid::s4u::Link::set_state_profile`.
1434 .. doxygenfunction:: simgrid::s4u::Link::is_on() const
1435 .. doxygenfunction:: simgrid::s4u::Link::turn_off()
1436 .. doxygenfunction:: simgrid::s4u::Link::turn_on()
1441 See :ref:`howto_churn` for more details.
1447 .. doxygenfunction:: simgrid::s4u::Link::set_bandwidth_profile(kernel::profile::Profile *profile)
1448 .. doxygenfunction:: simgrid::s4u::Link::set_latency_profile(kernel::profile::Profile *profile)
1449 .. doxygenfunction:: simgrid::s4u::Link::set_state_profile(kernel::profile::Profile *profile)
1458 .. doxygenfunction:: simgrid::s4u::Link::set_host_wifi_rate
1467 .. doxygenvariable:: simgrid::s4u::Link::on_bandwidth_change
1468 .. doxygenvariable:: simgrid::s4u::Link::on_communicate
1469 .. doxygenvariable:: simgrid::s4u::Link::on_communication_state_change
1470 .. doxygenvariable:: simgrid::s4u::Link::on_creation
1471 .. doxygenvariable:: simgrid::s4u::Link::on_destruction
1472 .. doxygenvariable:: simgrid::s4u::Link::on_state_change
1474 .. _API_s4u_NetZone:
1480 .. doxygenclass:: simgrid::s4u::NetZone
1491 #include <simgrid/s4u/NetZone.hpp>
1493 Note that there is no NetZonePtr type and that you cannot use the RAII
1494 idiom on network zones because SimGrid does not allow (yet) to create nor
1495 destroy resources once the simulation is started.
1501 #include <simgrid/zone.h>
1503 .. doxygentypedef:: sg_netzone_t
1504 .. cpp:type:: const s4u_NetZone* const_sg_netzone_t
1506 Pointer to a constant network zone object.
1515 See :cpp:func:`simgrid::s4u::Engine::get_netzone_root`,
1516 :cpp:func:`simgrid::s4u::Engine::netzone_by_name_or_null` and
1517 :cpp:func:`simgrid::s4u::Engine::get_filtered_netzones`.
1521 .. doxygenfunction:: sg_zone_get_by_name(const char *name)
1522 .. doxygenfunction:: sg_zone_get_root()
1531 .. doxygenfunction:: simgrid::s4u::NetZone::get_cname() const
1532 .. doxygenfunction:: simgrid::s4u::NetZone::get_name() const
1536 .. doxygenfunction:: sg_zone_get_name(const_sg_netzone_t zone)
1538 User data and properties
1539 ------------------------
1545 .. doxygenfunction:: simgrid::s4u::NetZone::get_properties() const
1546 .. doxygenfunction:: simgrid::s4u::NetZone::get_property(const std::string &key) const
1547 .. doxygenfunction:: simgrid::s4u::NetZone::set_property(const std::string &key, const std::string &value)
1551 .. doxygenfunction:: sg_zone_get_property_value(const_sg_netzone_t as, const char *name)
1552 .. doxygenfunction:: sg_zone_set_property_value(sg_netzone_t netzone, const char *name, const char *value)
1554 Retrieving components
1555 ---------------------
1561 .. doxygenfunction:: simgrid::s4u::NetZone::get_all_hosts() const
1562 .. doxygenfunction:: simgrid::s4u::NetZone::get_host_count() const
1566 .. doxygenfunction:: sg_zone_get_hosts(const_sg_netzone_t zone, xbt_dynar_t whereto)
1575 .. doxygenfunction:: simgrid::s4u::NetZone::add_bypass_route
1576 .. doxygenfunction:: simgrid::s4u::NetZone::add_component(kernel::routing::NetPoint *elm)
1577 .. doxygenfunction:: simgrid::s4u::NetZone::add_route
1578 .. doxygenfunction:: simgrid::s4u::NetZone::get_children() const
1579 .. doxygenfunction:: simgrid::s4u::NetZone::get_father()
1583 .. doxygenfunction:: sg_zone_get_sons(const_sg_netzone_t zone, xbt_dict_t whereto)
1592 .. doxygenvariable:: simgrid::s4u::NetZone::on_creation
1593 .. doxygenvariable:: simgrid::s4u::NetZone::on_route_creation
1594 .. doxygenvariable:: simgrid::s4u::NetZone::on_seal
1596 .. _API_s4u_VirtualMachine:
1598 =======================
1599 class VirtualMachine
1600 =======================
1603 .. doxygenclass:: simgrid::s4u::VirtualMachine
1613 #include <simgrid/s4u/VirtualMachine.hpp>
1615 Note that there is no VirtualMachinePtr type, and that you cannot use the RAII
1616 idiom on virtual machines. There is no good reason for that and should change in the future.
1622 #include <simgrid/vm.h>
1624 .. doxygentypedef:: sg_vm_t
1625 .. cpp:type:: const s4u_VirtualMachine* const_sg_vm_t
1627 Pointer to a constant virtual machine object.
1636 .. doxygenfunction:: simgrid::s4u::VirtualMachine::VirtualMachine(const std::string &name, Host *physical_host, int core_amount)
1637 .. doxygenfunction:: simgrid::s4u::VirtualMachine::VirtualMachine(const std::string &name, Host *physical_host, int core_amount, size_t ramsize)
1638 .. doxygenfunction:: simgrid::s4u::VirtualMachine::destroy
1642 .. doxygenfunction:: sg_vm_create_core
1643 .. doxygenfunction:: sg_vm_create_multicore
1644 .. doxygenfunction:: sg_vm_destroy
1653 .. doxygenfunction:: simgrid::s4u::VirtualMachine::get_pm() const
1654 .. doxygenfunction:: simgrid::s4u::VirtualMachine::get_ramsize() const
1655 .. doxygenfunction:: simgrid::s4u::VirtualMachine::get_state() const
1657 .. doxygenfunction:: simgrid::s4u::VirtualMachine::set_bound(double bound)
1658 .. doxygenfunction:: simgrid::s4u::VirtualMachine::set_pm(Host *pm)
1659 .. doxygenfunction:: simgrid::s4u::VirtualMachine::set_ramsize(size_t ramsize)
1663 .. doxygenfunction:: sg_vm_get_ramsize(const_sg_vm_t vm)
1664 .. doxygenfunction:: sg_vm_set_bound(sg_vm_t vm, double bound)
1665 .. doxygenfunction:: sg_vm_set_ramsize(sg_vm_t vm, size_t size)
1667 .. doxygenfunction:: sg_vm_get_name
1668 .. doxygenfunction:: sg_vm_get_pm
1669 .. doxygenfunction:: sg_vm_is_created
1670 .. doxygenfunction:: sg_vm_is_running
1671 .. doxygenfunction:: sg_vm_is_suspended
1680 .. doxygenfunction:: simgrid::s4u::VirtualMachine::resume()
1681 .. doxygenfunction:: simgrid::s4u::VirtualMachine::shutdown()
1682 .. doxygenfunction:: simgrid::s4u::VirtualMachine::start()
1683 .. doxygenfunction:: simgrid::s4u::VirtualMachine::suspend()
1687 .. doxygenfunction:: sg_vm_start
1688 .. doxygenfunction:: sg_vm_suspend
1689 .. doxygenfunction:: sg_vm_resume
1690 .. doxygenfunction:: sg_vm_shutdown
1699 .. doxygenvariable:: simgrid::s4u::VirtualMachine::on_migration_end
1700 .. doxygenvariable:: simgrid::s4u::VirtualMachine::on_migration_start
1701 .. doxygenvariable:: simgrid::s4u::VirtualMachine::on_resume
1702 .. doxygenvariable:: simgrid::s4u::VirtualMachine::on_shutdown
1703 .. doxygenvariable:: simgrid::s4u::VirtualMachine::on_start
1704 .. doxygenvariable:: simgrid::s4u::VirtualMachine::on_started
1705 .. doxygenvariable:: simgrid::s4u::VirtualMachine::on_suspend
1707 .. _API_s4u_Activity:
1713 .. doxygenclass:: simgrid::s4u::Activity
1715 **Known subclasses:**
1716 :ref:`Communications <API_s4u_Comm>` (started on Mailboxes and consuming links),
1717 :ref:`Executions <API_s4u_Exec>` (started on Host and consuming CPU resources)
1718 :ref:`I/O <API_s4u_Io>` (started on and consumming disks).
1719 See also the :ref:`section on activities <s4u_Activities>` above.
1730 #include <simgrid/s4u/Activity.hpp>
1732 .. doxygentypedef:: ActivityPtr
1741 .. doxygenfunction:: simgrid::s4u::Activity::get_cname
1742 .. doxygenfunction:: simgrid::s4u::Activity::get_name
1743 .. doxygenfunction:: simgrid::s4u::Activity::get_remaining() const
1744 .. doxygenfunction:: simgrid::s4u::Activity::get_state() const
1745 .. doxygenfunction:: simgrid::s4u::Activity::set_remaining(double remains)
1746 .. doxygenfunction:: simgrid::s4u::Activity::set_state(Activity::State state)
1749 Activities life cycle
1750 ---------------------
1756 .. doxygenfunction:: simgrid::s4u::Activity::start
1757 .. doxygenfunction:: simgrid::s4u::Activity::cancel
1758 .. doxygenfunction:: simgrid::s4u::Activity::test
1759 .. doxygenfunction:: simgrid::s4u::Activity::wait
1760 .. doxygenfunction:: simgrid::s4u::Activity::wait_for
1761 .. doxygenfunction:: simgrid::s4u::Activity::wait_until(double time_limit)
1762 .. doxygenfunction:: simgrid::s4u::Activity::vetoable_start()
1764 Suspending and resuming an activity
1765 -----------------------------------
1771 .. doxygenfunction:: simgrid::s4u::Activity::suspend
1772 .. doxygenfunction:: simgrid::s4u::Activity::resume
1773 .. doxygenfunction:: simgrid::s4u::Activity::is_suspended
1781 .. doxygenclass:: simgrid::s4u::Comm
1792 #include <simgrid/s4u/Comm.hpp>
1794 .. doxygentypedef:: CommPtr
1796 .. group-tab:: Python
1800 from simgrid import Comm
1809 .. doxygenfunction:: simgrid::s4u::Comm::get_dst_data_size() const
1810 .. doxygenfunction:: simgrid::s4u::Comm::get_mailbox() const
1811 .. doxygenfunction:: simgrid::s4u::Comm::get_sender() const
1812 .. doxygenfunction:: simgrid::s4u::Comm::set_dst_data(void **buff)
1813 .. doxygenfunction:: simgrid::s4u::Comm::set_dst_data(void **buff, size_t size)
1814 .. doxygenfunction:: simgrid::s4u::Comm::detach()
1815 .. doxygenfunction:: simgrid::s4u::Comm::detach(void(*clean_function)(void *))
1816 .. doxygenfunction:: simgrid::s4u::Comm::set_rate(double rate)
1817 .. doxygenfunction:: simgrid::s4u::Comm::set_src_data(void *buff)
1818 .. doxygenfunction:: simgrid::s4u::Comm::set_src_data(void *buff, size_t size)
1819 .. doxygenfunction:: simgrid::s4u::Comm::set_src_data_size(size_t size)
1828 .. doxygenfunction:: simgrid::s4u::Comm::cancel
1829 .. doxygenfunction:: simgrid::s4u::Comm::start
1830 .. doxygenfunction:: simgrid::s4u::Comm::test
1831 .. doxygenfunction:: simgrid::s4u::Comm::test_any(const std::vector< CommPtr > *comms)
1832 .. doxygenfunction:: simgrid::s4u::Comm::wait
1833 .. doxygenfunction:: simgrid::s4u::Comm::wait_all(const std::vector< CommPtr > *comms)
1834 .. doxygenfunction:: simgrid::s4u::Comm::wait_any(const std::vector< CommPtr > *comms)
1835 .. doxygenfunction:: simgrid::s4u::Comm::wait_any_for(const std::vector< CommPtr > *comms_in, double timeout)
1836 .. doxygenfunction:: simgrid::s4u::Comm::wait_for
1838 .. group-tab:: Python
1840 .. automethod:: simgrid.Comm.test
1841 .. automethod:: simgrid.Comm.wait
1842 .. automethod:: simgrid.Comm.wait_all
1843 .. automethod:: simgrid.Comm.wait_any
1852 .. doxygenvariable:: simgrid::s4u::Comm::on_completion
1853 .. doxygenvariable:: simgrid::s4u::Comm::on_start
1861 .. doxygenclass:: simgrid::s4u::Exec
1872 #include <simgrid/s4u/Exec.hpp>
1874 .. doxygentypedef:: ExecPtr
1876 .. group-tab:: Python
1880 from simgrid import Exec
1886 #include <simgrid/exec.h>
1895 .. doxygenfunction:: simgrid::s4u::Exec::get_cost() const
1896 .. doxygenfunction:: simgrid::s4u::Exec::get_finish_time() const
1897 .. doxygenfunction:: simgrid::s4u::Exec::get_host() const
1898 .. doxygenfunction:: simgrid::s4u::Exec::get_host_number() const
1899 .. cpp:function:: double Exec::get_remaining()
1901 On sequential executions, returns the amount of flops that remain to be done;
1902 This cannot be used on parallel executions.
1904 .. doxygenfunction:: simgrid::s4u::Exec::get_remaining_ratio
1905 .. doxygenfunction:: simgrid::s4u::Exec::get_start_time() const
1906 .. doxygenfunction:: simgrid::s4u::Exec::set_bound(double bound)
1907 .. doxygenfunction:: simgrid::s4u::Exec::set_host
1908 .. doxygenfunction:: simgrid::s4u::Exec::set_priority(double priority)
1910 .. group-tab:: Python
1912 .. autoattribute:: simgrid.Exec.host
1913 .. autoattribute:: simgrid.Exec.remaining
1914 .. autoattribute:: simgrid.Exec.remaining_ratio
1918 .. doxygenfunction:: sg_exec_set_bound(sg_exec_t exec, double bound)
1919 .. doxygenfunction:: sg_exec_get_name(const_sg_exec_t exec)
1920 .. doxygenfunction:: sg_exec_set_name(sg_exec_t exec, const char* name)
1921 .. doxygenfunction:: sg_exec_set_host(sg_exec_t exec, sg_host_t new_host)
1922 .. doxygenfunction:: sg_exec_get_remaining(const_sg_exec_t exec)
1923 .. doxygenfunction:: sg_exec_get_remaining_ratio(const_sg_exec_t exec)
1932 .. doxygenfunction:: simgrid::s4u::Exec::cancel
1933 .. doxygenfunction:: simgrid::s4u::Exec::set_timeout(double timeout)
1934 .. doxygenfunction:: simgrid::s4u::Exec::start
1935 .. doxygenfunction:: simgrid::s4u::Exec::test
1936 .. doxygenfunction:: simgrid::s4u::Exec::wait
1937 .. doxygenfunction:: simgrid::s4u::Exec::wait_any(std::vector< ExecPtr > *execs)
1938 .. doxygenfunction:: simgrid::s4u::Exec::wait_any_for(std::vector< ExecPtr > *execs, double timeout)
1939 .. doxygenfunction:: simgrid::s4u::Exec::wait_for
1941 .. group-tab:: Python
1943 .. automethod:: simgrid.Exec.cancel
1944 .. automethod:: simgrid.Exec.start
1945 .. automethod:: simgrid.Exec.test
1946 .. automethod:: simgrid.Exec.wait
1950 .. doxygenfunction:: sg_exec_start(sg_exec_t exec)
1951 .. doxygenfunction:: sg_exec_cancel(sg_exec_t exec);
1952 .. doxygenfunction:: sg_exec_test(sg_exec_t exec);
1953 .. doxygenfunction:: sg_exec_wait(sg_exec_t exec);
1954 .. doxygenfunction:: sg_exec_wait_for(sg_exec_t exec, double timeout);
1955 .. doxygenfunction:: sg_exec_wait_any_for(sg_exec_t* execs, size_t count, double timeout);
1956 .. doxygenfunction:: sg_exec_wait_any(sg_exec_t* execs, size_t count);
1965 .. doxygenvariable:: simgrid::s4u::Exec::on_start
1966 .. doxygenvariable:: simgrid::s4u::Exec::on_completion
1974 .. doxygenclass:: simgrid::s4u::Io
1985 #include <simgrid/s4u/Io.hpp>
1987 .. doxygentypedef:: IoPtr
1996 .. doxygenfunction:: simgrid::s4u::Io::get_performed_ioops() const
1997 .. doxygenfunction:: simgrid::s4u::Io::get_remaining
2006 .. doxygenfunction:: simgrid::s4u::Io::cancel
2007 .. doxygenfunction:: simgrid::s4u::Io::start
2008 .. doxygenfunction:: simgrid::s4u::Io::test
2009 .. doxygenfunction:: simgrid::s4u::Io::wait
2010 .. doxygenfunction:: simgrid::s4u::Io::wait_for
2012 .. _API_s4u_Synchronizations:
2014 =======================
2015 Synchronization Objects
2016 =======================
2024 .. doxygenclass:: simgrid::s4u::Mutex
2035 #include <simgrid/s4u/Mutex.hpp>
2037 .. doxygentypedef:: MutexPtr
2039 .. doxygenfunction:: simgrid::s4u::Mutex::Mutex(kernel::activity::MutexImpl *mutex)
2040 .. doxygenfunction:: simgrid::s4u::Mutex::create()
2041 .. doxygenfunction:: simgrid::s4u::Mutex::~Mutex()
2047 #include <simgrid/mutex.h>
2049 .. doxygentypedef:: sg_mutex_t
2050 .. cpp:type:: const s4u_Mutex* const_sg_mutex_t
2052 Pointer to a constant mutex object.
2054 .. doxygenfunction:: sg_mutex_init()
2055 .. doxygenfunction:: sg_mutex_destroy(const_sg_mutex_t mutex)
2064 .. doxygenfunction:: simgrid::s4u::Mutex::lock()
2065 .. doxygenfunction:: simgrid::s4u::Mutex::try_lock()
2066 .. doxygenfunction:: simgrid::s4u::Mutex::unlock()
2070 .. doxygenfunction:: sg_mutex_lock(sg_mutex_t mutex)
2071 .. doxygenfunction:: sg_mutex_try_lock(sg_mutex_t mutex)
2072 .. doxygenfunction:: sg_mutex_unlock(sg_mutex_t mutex)
2074 .. _API_s4u_Barrier:
2080 .. doxygenclass:: simgrid::s4u::Barrier
2088 #include <simgrid/s4u/Barrier.hpp>
2090 .. doxygentypedef:: BarrierPtr
2092 .. doxygenfunction:: simgrid::s4u::Barrier::Barrier(unsigned int expected_actors)
2093 .. doxygenfunction:: simgrid::s4u::Barrier::create(unsigned int expected_actors)
2094 .. doxygenfunction:: simgrid::s4u::Barrier::wait()
2100 #include <simgrid/barrier.hpp>
2102 .. doxygentypedef:: sg_bar_t
2103 .. cpp:type:: const s4u_Barrier* const_sg_bar_t
2105 Pointer to a constant barrier object.
2107 .. doxygenfunction:: sg_barrier_init(unsigned int count)
2108 .. doxygenfunction:: sg_barrier_destroy(const_sg_bar_t bar)
2109 .. doxygenfunction:: sg_barrier_wait(sg_bar_t bar)
2112 .. _API_s4u_ConditionVariable:
2114 ==========================
2115 Condition variable
2116 ==========================
2118 .. doxygenclass:: simgrid::s4u::ConditionVariable
2129 #include <simgrid/s4u/ConditionVariable.hpp>
2131 .. doxygentypedef:: ConditionVariablePtr
2133 .. doxygenfunction:: simgrid::s4u::ConditionVariable::create()
2139 #include <simgrid/cond.h>
2141 .. doxygentypedef:: sg_cond_t
2142 .. doxygenfunction:: sg_cond_init
2143 .. doxygenfunction:: sg_cond_destroy
2145 Waiting and notifying
2146 ---------------------
2152 .. doxygenfunction:: simgrid::s4u::ConditionVariable::notify_all()
2153 .. doxygenfunction:: simgrid::s4u::ConditionVariable::notify_one()
2154 .. doxygenfunction:: simgrid::s4u::ConditionVariable::wait(s4u::MutexPtr lock)
2155 .. doxygenfunction:: simgrid::s4u::ConditionVariable::wait(const std::unique_lock< s4u::Mutex > &lock)
2156 .. doxygenfunction:: simgrid::s4u::ConditionVariable::wait(const std::unique_lock< Mutex > &lock, P pred)
2157 .. doxygenfunction:: simgrid::s4u::ConditionVariable::wait_for(const std::unique_lock< s4u::Mutex > &lock, double duration)
2158 .. doxygenfunction:: simgrid::s4u::ConditionVariable::wait_for(const std::unique_lock< s4u::Mutex > &lock, double duration, P pred)
2159 .. doxygenfunction:: simgrid::s4u::ConditionVariable::wait_for(const std::unique_lock< s4u::Mutex > &lock, std::chrono::duration< Rep, Period > duration)
2160 .. doxygenfunction:: simgrid::s4u::ConditionVariable::wait_for(const std::unique_lock< s4u::Mutex > &lock, std::chrono::duration< Rep, Period > duration, P pred)
2161 .. doxygenfunction:: simgrid::s4u::ConditionVariable::wait_until(const std::unique_lock< s4u::Mutex > &lock, const SimulationTimePoint< Duration > &timeout_time)
2162 .. doxygenfunction:: simgrid::s4u::ConditionVariable::wait_until(const std::unique_lock< s4u::Mutex > &lock, const SimulationTimePoint< Duration > &timeout_time, P pred)
2163 .. doxygenfunction:: simgrid::s4u::ConditionVariable::wait_until(const std::unique_lock< s4u::Mutex > &lock, double timeout_time)
2164 .. doxygenfunction:: simgrid::s4u::ConditionVariable::wait_until(const std::unique_lock< s4u::Mutex > &lock, double timeout_time, P pred)
2168 .. doxygenfunction:: sg_cond_notify_all
2169 .. doxygenfunction:: sg_cond_notify_one
2170 .. doxygenfunction:: sg_cond_wait
2171 .. doxygenfunction:: sg_cond_wait_for
2173 .. _API_s4u_Semaphore:
2179 .. doxygenclass:: simgrid::s4u::Semaphore
2191 #include <simgrid/s4u/Semaphore.hpp>
2193 .. doxygentypedef:: SemaphorePtr
2194 .. doxygenfunction:: simgrid::s4u::Semaphore::Semaphore(unsigned int initial_capacity)
2195 .. doxygenfunction:: simgrid::s4u::Semaphore::~Semaphore()
2196 .. doxygenfunction:: simgrid::s4u::Semaphore::create(unsigned int initial_capacity)
2202 #include <simgrid/semaphore.h>
2204 .. doxygentypedef:: sg_sem_t
2205 .. cpp:type:: const s4u_Semaphore* const_sg_sem_t
2207 Pointer to a constant semaphore object.
2209 .. doxygenfunction:: sg_sem_init(int initial_value)
2210 .. doxygenfunction:: sg_sem_destroy(const_sg_sem_t sem)
2219 .. doxygenfunction:: simgrid::s4u::Semaphore::acquire()
2220 .. doxygenfunction:: simgrid::s4u::Semaphore::acquire_timeout(double timeout)
2221 .. doxygenfunction:: simgrid::s4u::Semaphore::get_capacity() const
2222 .. doxygenfunction:: simgrid::s4u::Semaphore::release()
2223 .. doxygenfunction:: simgrid::s4u::Semaphore::would_block() const
2227 .. doxygenfunction:: sg_sem_acquire(sg_sem_t sem)
2228 .. doxygenfunction:: sg_sem_acquire_timeout(sg_sem_t sem, double timeout)
2229 .. doxygenfunction:: sg_sem_get_capacity(const_sg_sem_t sem)
2230 .. doxygenfunction:: sg_sem_release(sg_sem_t sem)
2231 .. doxygenfunction:: sg_sem_would_block(const_sg_sem_t sem)