1 /* Copyright (c) 2018-2022. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
7 #warning Try to work around https://bugs.python.org/issue11566
12 #pragma GCC diagnostic push
13 #pragma GCC diagnostic ignored "-Wunused-value"
16 #include <pybind11/pybind11.h> // Must come before our own stuff
18 #include <pybind11/functional.h>
19 #include <pybind11/stl.h>
22 #pragma GCC diagnostic pop
25 #include "simgrid/kernel/ProfileBuilder.hpp"
26 #include "simgrid/kernel/routing/NetPoint.hpp"
27 #include "src/kernel/context/Context.hpp"
28 #include <simgrid/Exception.hpp>
29 #include <simgrid/s4u/Actor.hpp>
30 #include <simgrid/s4u/Comm.hpp>
31 #include <simgrid/s4u/Disk.hpp>
32 #include <simgrid/s4u/Engine.hpp>
33 #include <simgrid/s4u/Exec.hpp>
34 #include <simgrid/s4u/Host.hpp>
35 #include <simgrid/s4u/Link.hpp>
36 #include <simgrid/s4u/Mailbox.hpp>
37 #include <simgrid/s4u/NetZone.hpp>
38 #include <simgrid/version.h>
45 namespace py = pybind11;
46 using simgrid::s4u::Actor;
47 using simgrid::s4u::ActorPtr;
48 using simgrid::s4u::Engine;
49 using simgrid::s4u::Host;
50 using simgrid::s4u::Link;
51 using simgrid::s4u::Mailbox;
53 XBT_LOG_NEW_DEFAULT_CATEGORY(python, "python");
57 std::string get_simgrid_version()
62 sg_version_get(&major, &minor, &patch);
63 return simgrid::xbt::string_printf("%i.%i.%i", major, minor, patch);
66 /** @brief Wrap for mailbox::get_async */
68 std::unique_ptr<PyObject*> data = std::make_unique<PyObject*>();
71 PyObject** get() const { return data.get(); }
76 PYBIND11_DECLARE_HOLDER_TYPE(T, boost::intrusive_ptr<T>)
78 PYBIND11_MODULE(simgrid, m)
80 m.doc() = "SimGrid userspace API";
82 m.attr("simgrid_version") = get_simgrid_version();
84 // Swapped contexts are broken, starting from pybind11 v2.8.0. Use thread contexts by default.
85 simgrid::s4u::Engine::set_config("contexts/factory:thread");
87 // Internal exception used to kill actors and sweep the RAII chimney (free objects living on the stack)
88 static py::object pyForcefulKillEx(py::register_exception<simgrid::ForcefulKillException>(m, "ActorKilled"));
90 py::register_exception<simgrid::NetworkFailureException>(m, "NetworkFailureException");
91 py::register_exception<simgrid::TimeoutException>(m, "TimeoutException");
92 py::register_exception<simgrid::HostFailureException>(m, "HostFailureException");
93 py::register_exception<simgrid::StorageFailureException>(m, "StorageFailureException");
94 py::register_exception<simgrid::VmFailureException>(m, "VmFailureException");
95 py::register_exception<simgrid::CancelException>(m, "CancelException");
97 /* this_actor namespace */
98 m.def_submodule("this_actor", "Bindings of the s4u::this_actor namespace. See the C++ documentation for details.")
100 "debug", [](const char* s) { XBT_DEBUG("%s", s); }, "Display a logging message of 'debug' priority.")
102 "info", [](const char* s) { XBT_INFO("%s", s); }, "Display a logging message of 'info' priority.")
104 "error", [](const char* s) { XBT_ERROR("%s", s); }, "Display a logging message of 'error' priority.")
105 .def("execute", py::overload_cast<double, double>(&simgrid::s4u::this_actor::execute),
106 py::call_guard<py::gil_scoped_release>(),
107 "Block the current actor, computing the given amount of flops at the given priority.", py::arg("flops"),
108 py::arg("priority") = 1)
109 .def("exec_init", py::overload_cast<double>(&simgrid::s4u::this_actor::exec_init),
110 py::call_guard<py::gil_scoped_release>())
111 .def("get_host", &simgrid::s4u::this_actor::get_host, "Retrieves host on which the current actor is located")
112 .def("set_host", &simgrid::s4u::this_actor::set_host, py::call_guard<py::gil_scoped_release>(),
113 "Moves the current actor to another host.", py::arg("dest"))
114 .def("sleep_for", static_cast<void (*)(double)>(&simgrid::s4u::this_actor::sleep_for),
115 py::call_guard<py::gil_scoped_release>(), "Block the actor sleeping for that amount of seconds.",
117 .def("sleep_until", static_cast<void (*)(double)>(&simgrid::s4u::this_actor::sleep_until),
118 py::call_guard<py::gil_scoped_release>(), "Block the actor sleeping until the specified timestamp.",
120 .def("suspend", &simgrid::s4u::this_actor::suspend, py::call_guard<py::gil_scoped_release>(),
121 "Suspend the current actor, that is blocked until resume()ed by another actor.")
122 .def("yield_", &simgrid::s4u::this_actor::yield, py::call_guard<py::gil_scoped_release>(), "Yield the actor")
123 .def("exit", &simgrid::s4u::this_actor::exit, py::call_guard<py::gil_scoped_release>(), "kill the current actor")
127 py::function fun = py::reinterpret_borrow<py::function>(cb);
128 fun.inc_ref(); // FIXME: why is this needed for tests like actor-kill and actor-lifetime?
129 simgrid::s4u::this_actor::on_exit([fun](bool /*failed*/) {
130 py::gil_scoped_acquire py_context; // need a new context for callback
133 } catch (const py::error_already_set& e) {
134 xbt_die("Error while executing the on_exit lambda: %s", e.what());
138 py::call_guard<py::gil_scoped_release>(), "")
139 .def("get_pid", &simgrid::s4u::this_actor::get_pid, "Retrieves PID of the current actor")
140 .def("get_ppid", &simgrid::s4u::this_actor::get_ppid,
141 "Retrieves PPID of the current actor (i.e., the PID of its parent).");
144 py::class_<Engine>(m, "Engine", "Simulation Engine")
145 .def(py::init([](std::vector<std::string> args) {
146 auto argc = static_cast<int>(args.size());
147 std::vector<char*> argv(args.size() + 1); // argv[argc] is nullptr
148 std::transform(begin(args), end(args), begin(argv), [](std::string& s) { return &s.front(); });
149 // Currently this can be dangling, we should wrap this somehow.
150 return new simgrid::s4u::Engine(&argc, argv.data());
152 "The constructor should take the parameters from the command line, as is ")
153 .def_static("get_clock",
154 []() // XBT_ATTRIB_DEPRECATED_v334
156 PyErr_WarnEx(PyExc_DeprecationWarning,
157 "get_clock() is deprecated and will be dropped after v3.33, use clock instead.", 1);
158 return Engine::get_clock();
160 .def_property_readonly_static(
161 "clock", [](py::object /* self */) { return Engine::get_clock(); },
162 "The simulation time, ie the amount of simulated seconds since the simulation start.")
163 .def_property_readonly_static(
164 "instance", [](py::object /* self */) { return Engine::get_instance(); }, "Retrieve the simulation engine")
165 .def("get_all_hosts",
166 [](py::object self) // XBT_ATTRIB_DEPRECATED_v334
168 PyErr_WarnEx(PyExc_DeprecationWarning,
169 "get_all_hosts() is deprecated and will be dropped after v3.33, use all_hosts instead.", 1);
170 return self.attr("all_hosts");
172 .def_property_readonly("all_hosts", &Engine::get_all_hosts, "Returns the list of all hosts found in the platform")
173 .def("get_all_links",
174 [](py::object self) // XBT_ATTRIB_DEPRECATED_v334
176 PyErr_WarnEx(PyExc_DeprecationWarning,
177 "get_all_links() is deprecated and will be dropped after v3.33, use all_links instead.", 1);
178 return self.attr("all_links");
180 .def_property_readonly("all_links", &Engine::get_all_links, "Returns the list of all links found in the platform")
181 .def("get_all_netpoints",
182 [](py::object self) // XBT_ATTRIB_DEPRECATED_v334
185 PyExc_DeprecationWarning,
186 "get_all_netpoints() is deprecated and will be dropped after v3.33, use all_netpoints instead.", 1);
187 return self.attr("all_netpoints");
189 .def_property_readonly("all_netpoints", &Engine::get_all_netpoints)
190 .def("get_netzone_root",
191 [](py::object self) // XBT_ATTRIB_DEPRECATED_v334
193 PyErr_WarnEx(PyExc_DeprecationWarning,
194 "get_netzone_root() is deprecated and will be dropped after v3.3, use netzone_root instead.",
196 return self.attr("netzone_root");
198 .def_property_readonly("netzone_root", &Engine::get_netzone_root,
199 "Retrieve the root netzone, containing all others.")
200 .def("netpoint_by_name", &Engine::netpoint_by_name_or_null)
201 .def("netzone_by_name", &Engine::netzone_by_name_or_null)
202 .def("load_platform", &Engine::load_platform, "Load a platform file describing the environment")
203 .def("load_deployment", &Engine::load_deployment, "Load a deployment file and launch the actors that it contains")
204 .def("run", &Engine::run, py::call_guard<py::gil_scoped_release>(), "Run the simulation until its end")
205 .def("run_until", py::overload_cast<double>(&Engine::run_until, py::const_),
206 py::call_guard<py::gil_scoped_release>(), "Run the simulation until the given date",
207 py::arg("max_date") = -1)
210 [](Engine* e, const std::string& name, py::object fun_or_class) {
211 e->register_actor(name, [fun_or_class](std::vector<std::string> args) {
212 py::gil_scoped_acquire py_context;
214 /* Convert the std::vector into a py::tuple */
215 py::tuple params(args.size() - 1);
216 for (size_t i = 1; i < args.size(); i++)
217 params[i - 1] = py::cast(args[i]);
219 py::object res = fun_or_class(*params);
220 /* If I was passed a class, I just built an instance, so I need to call it now */
221 if (py::isinstance<py::function>(res))
223 } catch (const py::error_already_set& ex) {
224 if (ex.matches(pyForcefulKillEx)) {
225 XBT_VERB("Actor killed");
226 simgrid::ForcefulKillException::do_throw(); // Forward that ForcefulKill exception
232 "Registers the main function of an actor");
235 py::class_<simgrid::s4u::NetZone, std::unique_ptr<simgrid::s4u::NetZone, py::nodelete>> netzone(
236 m, "NetZone", "Networking Zones. See the C++ documentation for details.");
237 netzone.def_static("create_full_zone", &simgrid::s4u::create_full_zone, "Creates a zone of type FullZone")
238 .def_static("create_torus_zone", &simgrid::s4u::create_torus_zone, "Creates a cluster of type Torus")
239 .def_static("create_fatTree_zone", &simgrid::s4u::create_fatTree_zone, "Creates a cluster of type Fat-Tree")
240 .def_static("create_dragonfly_zone", &simgrid::s4u::create_dragonfly_zone, "Creates a cluster of type Dragonfly")
241 .def_static("create_star_zone", &simgrid::s4u::create_star_zone, "Creates a zone of type Star")
242 .def_static("create_floyd_zone", &simgrid::s4u::create_floyd_zone, "Creates a zone of type Floyd")
243 .def_static("create_dijkstra_zone", &simgrid::s4u::create_floyd_zone, "Creates a zone of type Dijkstra")
244 .def_static("create_vivaldi_zone", &simgrid::s4u::create_vivaldi_zone, "Creates a zone of type Vivaldi")
245 .def_static("create_empty_zone", &simgrid::s4u::create_empty_zone, "Creates a zone of type Empty")
246 .def_static("create_wifi_zone", &simgrid::s4u::create_wifi_zone, "Creates a zone of type Wi-Fi")
248 py::overload_cast<simgrid::kernel::routing::NetPoint*, simgrid::kernel::routing::NetPoint*,
249 simgrid::kernel::routing::NetPoint*, simgrid::kernel::routing::NetPoint*,
250 const std::vector<simgrid::s4u::LinkInRoute>&, bool>(&simgrid::s4u::NetZone::add_route),
251 "Add a route between 2 netpoints")
252 .def("create_host", py::overload_cast<const std::string&, double>(&simgrid::s4u::NetZone::create_host),
255 py::overload_cast<const std::string&, const std::string&>(&simgrid::s4u::NetZone::create_host),
258 py::overload_cast<const std::string&, const std::vector<double>&>(&simgrid::s4u::NetZone::create_host),
261 py::overload_cast<const std::string&, const std::vector<std::string>&>(&simgrid::s4u::NetZone::create_host),
263 .def("create_link", py::overload_cast<const std::string&, double>(&simgrid::s4u::NetZone::create_link),
264 "Creates a network link")
266 py::overload_cast<const std::string&, const std::string&>(&simgrid::s4u::NetZone::create_link),
267 "Creates a network link")
269 py::overload_cast<const std::string&, const std::vector<double>&>(&simgrid::s4u::NetZone::create_link),
270 "Creates a network link")
272 py::overload_cast<const std::string&, const std::vector<std::string>&>(&simgrid::s4u::NetZone::create_link),
273 "Creates a network link")
274 .def("create_split_duplex_link",
275 py::overload_cast<const std::string&, double>(&simgrid::s4u::NetZone::create_split_duplex_link),
276 "Creates a split-duplex link")
277 .def("create_split_duplex_link",
278 py::overload_cast<const std::string&, const std::string&>(&simgrid::s4u::NetZone::create_split_duplex_link),
279 "Creates a split-duplex link")
280 .def("create_router", &simgrid::s4u::NetZone::create_router, "Create a router")
281 .def("set_parent", &simgrid::s4u::NetZone::set_parent, "Set the parent of this zone")
282 .def("set_property", &simgrid::s4u::NetZone::set_property, "Add a property to this zone")
284 [](py::object self) // XBT_ATTRIB_DEPRECATED_v334
286 PyErr_WarnEx(PyExc_DeprecationWarning,
287 "get_netpoint() is deprecated and will be dropped after v3.33, use netpoint instead.", 1);
288 return self.attr("netpoint");
290 .def_property_readonly("netpoint", &simgrid::s4u::NetZone::get_netpoint,
291 "Retrieve the netpoint associated to this zone")
292 .def("seal", &simgrid::s4u::NetZone::seal, "Seal this NetZone")
293 .def_property_readonly(
294 "name", [](const simgrid::s4u::NetZone* self) { return self->get_name(); },
295 "The name of this network zone (read-only property).");
297 /* Class ClusterCallbacks */
298 py::class_<simgrid::s4u::ClusterCallbacks>(m, "ClusterCallbacks", "Callbacks used to create cluster zones")
299 .def(py::init<const std::function<simgrid::s4u::ClusterCallbacks::ClusterNetPointCb>&,
300 const std::function<simgrid::s4u::ClusterCallbacks::ClusterLinkCb>&,
301 const std::function<simgrid::s4u::ClusterCallbacks::ClusterLinkCb>&>());
303 /* Class FatTreeParams */
304 py::class_<simgrid::s4u::FatTreeParams>(m, "FatTreeParams", "Parameters to create a Fat-Tree zone")
305 .def(py::init<unsigned int, const std::vector<unsigned int>&, const std::vector<unsigned int>&,
306 const std::vector<unsigned int>&>());
308 /* Class DragonflyParams */
309 py::class_<simgrid::s4u::DragonflyParams>(m, "DragonflyParams", "Parameters to create a Dragonfly zone")
310 .def(py::init<const std::pair<unsigned int, unsigned int>&, const std::pair<unsigned int, unsigned int>&,
311 const std::pair<unsigned int, unsigned int>&, unsigned int>());
314 py::class_<simgrid::s4u::Host, std::unique_ptr<Host, py::nodelete>> host(
315 m, "Host", "Simulated host. See the C++ documentation for details.");
316 host.def("by_name", &Host::by_name, "Retrieves a host from its name, or die")
319 [](const simgrid::s4u::Host* h, const simgrid::s4u::Host* to) {
320 auto* list = new std::vector<Link*>();
322 h->route_to(to, *list, &bw);
323 return make_tuple(list, bw);
325 "Retrieves the list of links and the bandwidth between two hosts.")
328 [](Host* h, const std::string& profile, double period) {
329 h->set_speed_profile(simgrid::kernel::profile::ProfileBuilder::from_string("", profile, period));
331 py::call_guard<py::gil_scoped_release>(),
332 "Specify a profile modeling the external load according to an exhaustive list. "
333 "Each line of the profile describes timed events as ``date ratio``. "
334 "For example, the following content describes an host which computational speed is initially 1 (i.e, 100%) "
335 "and then halved after 42 seconds:\n\n"
336 ".. code-block:: python\n\n"
341 ".. warning:: Don't get fooled: bandwidth and latency profiles of links contain absolute values,"
342 " while speed profiles of hosts contain ratios.\n\n"
343 "The second function parameter is the periodicity: the time to wait after the last event to start again over "
344 "the list. Set it to -1 to not loop over.")
347 [](Host* h, const std::string& profile, double period) {
348 h->set_state_profile(simgrid::kernel::profile::ProfileBuilder::from_string("", profile, period));
350 py::call_guard<py::gil_scoped_release>(),
351 "Specify a profile modeling the churn. "
352 "Each line of the profile describes timed events as ``date boolean``, where the boolean (0 or 1) tells "
353 "whether the host is on. "
354 "For example, the following content describes a link which turns off at t=1 and back on at t=2:\n\n"
355 ".. code-block:: python\n\n"
360 "The second function parameter is the periodicity: the time to wait after the last event to start again over "
361 "the list. Set it to -1 to not loop over.")
362 .def("get_pstate_count",
363 [](py::object self) // XBT_ATTRIB_DEPRECATED_v334
366 PyExc_DeprecationWarning,
367 "get_pstate_count() is deprecated and will be dropped after v3.33, use pstate_count instead.", 1);
368 return self.attr("pstate_count");
370 .def_property_readonly("pstate_count", &Host::get_pstate_count, "Retrieve the count of defined pstate levels")
371 .def("get_pstate_speed",
372 [](py::object self, int state) // XBT_ATTRIB_DEPRECATED_v334
375 PyExc_DeprecationWarning,
376 "get_pstate_speed() is deprecated and will be dropped after v3.33, use pstate_speed instead.", 1);
377 return self.attr("pstate_speed")(state);
379 .def("pstate_speed", &Host::get_pstate_speed, py::call_guard<py::gil_scoped_release>(),
380 "Retrieve the maximal speed at the given pstate")
382 [](py::object self) // XBT_ATTRIB_DEPRECATED_v334
384 PyErr_WarnEx(PyExc_DeprecationWarning,
385 "get_netpoint() is deprecated and will be dropped after v3.33, use netpoint instead.", 1);
386 return self.attr("netpoint");
388 .def_property_readonly("netpoint", &Host::get_netpoint, "Retrieve the netpoint associated to this zone")
389 .def("get_disks", &Host::get_disks, "Retrieve the list of disks in this host")
390 .def("set_core_count",
391 [](py::object self, double count) // XBT_ATTRIB_DEPRECATED_v334
393 PyErr_WarnEx(PyExc_DeprecationWarning,
394 "set_core_count() is deprecated and will be dropped after v3.33, use core_count instead.",
396 self.attr("core_count")(count);
399 "core_count", &Host::get_core_count,
400 [](Host* h, int count) {
401 py::gil_scoped_release gil_guard;
402 return h->set_core_count(count);
404 "Manage the number of cores in the CPU")
405 .def("set_coordinates", &Host::set_coordinates, py::call_guard<py::gil_scoped_release>(),
406 "Set the coordinates of this host")
407 .def("set_sharing_policy", &simgrid::s4u::Host::set_sharing_policy, py::call_guard<py::gil_scoped_release>(),
408 "Describe how the CPU is shared", py::arg("policy"), py::arg("cb") = simgrid::s4u::NonLinearResourceCb())
409 .def("create_disk", py::overload_cast<const std::string&, double, double>(&Host::create_disk),
410 py::call_guard<py::gil_scoped_release>(), "Create a disk")
412 py::overload_cast<const std::string&, const std::string&, const std::string&>(&Host::create_disk),
413 py::call_guard<py::gil_scoped_release>(), "Create a disk")
414 .def("seal", &Host::seal, py::call_guard<py::gil_scoped_release>(), "Seal this host")
416 "pstate", &Host::get_pstate,
418 py::gil_scoped_release gil_guard;
421 "The current pstate (read/write property).")
422 .def("current", &Host::current, py::call_guard<py::gil_scoped_release>(),
423 "Retrieves the host on which the running actor is located.")
424 .def_property_readonly(
426 [](const Host* self) {
427 return std::string(self->get_name().c_str()); // Convert from xbt::string because of MC
429 "The name of this host (read-only property).")
430 .def_property_readonly("load", &Host::get_load,
431 "Returns the current computation load (in flops per second), NOT taking the external load "
432 "into account. This is the currently achieved speed (read-only property).")
433 .def_property_readonly(
434 "speed", &Host::get_speed,
435 "The peak computing speed in flops/s at the current pstate, NOT taking the external load into account. "
436 "This is the max potential speed (read-only property).")
437 .def_property_readonly("available_speed", &Host::get_available_speed,
438 "Get the available speed ratio, between 0 and 1.\n"
439 "This accounts for external load (see :py:func:`set_speed_profile() "
440 "<simgrid.Host.set_speed_profile>`) (read-only property).")
444 Host::on_creation_cb([cb](Host& h) {
445 py::function fun = py::reinterpret_borrow<py::function>(cb);
446 py::gil_scoped_acquire py_context; // need a new context for callback
449 } catch (const py::error_already_set& e) {
450 xbt_die("Error while executing the on_creation lambda : %s", e.what());
454 py::call_guard<py::gil_scoped_release>(), "");
456 py::enum_<simgrid::s4u::Host::SharingPolicy>(host, "SharingPolicy")
457 .value("NONLINEAR", simgrid::s4u::Host::SharingPolicy::NONLINEAR)
458 .value("LINEAR", simgrid::s4u::Host::SharingPolicy::LINEAR)
462 py::class_<simgrid::s4u::Disk, std::unique_ptr<simgrid::s4u::Disk, py::nodelete>> disk(
463 m, "Disk", "Simulated disk. See the C++ documentation for details.");
464 disk.def("read", py::overload_cast<sg_size_t, double>(&simgrid::s4u::Disk::read, py::const_),
465 py::call_guard<py::gil_scoped_release>(), "Read data from disk", py::arg("size"), py::arg("priority") = 1)
466 .def("write", py::overload_cast<sg_size_t, double>(&simgrid::s4u::Disk::write, py::const_),
467 py::call_guard<py::gil_scoped_release>(), "Write data in disk", py::arg("size"), py::arg("priority") = 1)
468 .def("read_async", &simgrid::s4u::Disk::read_async, py::call_guard<py::gil_scoped_release>(),
469 "Non-blocking read data from disk")
470 .def("write_async", &simgrid::s4u::Disk::write_async, py::call_guard<py::gil_scoped_release>(),
471 "Non-blocking write data in disk")
472 .def("set_sharing_policy", &simgrid::s4u::Disk::set_sharing_policy, py::call_guard<py::gil_scoped_release>(),
473 "Set sharing policy for this disk", py::arg("op"), py::arg("policy"),
474 py::arg("cb") = simgrid::s4u::NonLinearResourceCb())
475 .def("seal", &simgrid::s4u::Disk::seal, py::call_guard<py::gil_scoped_release>(), "Seal this disk")
476 .def_property_readonly(
477 "name", [](const simgrid::s4u::Disk* self) { return self->get_name(); },
478 "The name of this disk (read-only property).");
479 py::enum_<simgrid::s4u::Disk::SharingPolicy>(disk, "SharingPolicy")
480 .value("NONLINEAR", simgrid::s4u::Disk::SharingPolicy::NONLINEAR)
481 .value("LINEAR", simgrid::s4u::Disk::SharingPolicy::LINEAR)
483 py::enum_<simgrid::s4u::Disk::Operation>(disk, "Operation")
484 .value("READ", simgrid::s4u::Disk::Operation::READ)
485 .value("WRITE", simgrid::s4u::Disk::Operation::WRITE)
486 .value("READWRITE", simgrid::s4u::Disk::Operation::READWRITE)
490 py::class_<simgrid::kernel::routing::NetPoint, std::unique_ptr<simgrid::kernel::routing::NetPoint, py::nodelete>>
491 netpoint(m, "NetPoint", "NetPoint object");
494 py::class_<Link, std::unique_ptr<Link, py::nodelete>> link(m, "Link",
495 "Network link. See the C++ documentation for details.");
496 link.def("set_latency", py::overload_cast<const std::string&>(&Link::set_latency),
497 py::call_guard<py::gil_scoped_release>(),
498 "Set the latency as a string. Accepts values with units, such as ‘1s’ or ‘7ms’.\nFull list of accepted "
499 "units: w (week), d (day), h, s, ms, us, ns, ps.")
500 .def("set_latency", py::overload_cast<double>(&Link::set_latency), py::call_guard<py::gil_scoped_release>(),
501 "Set the latency as a float (in seconds).")
502 .def("set_bandwidth", &Link::set_bandwidth, py::call_guard<py::gil_scoped_release>(),
503 "Set the bandwidth (in byte per second).")
505 "set_bandwidth_profile",
506 [](Link* l, const std::string& profile, double period) {
507 l->set_bandwidth_profile(simgrid::kernel::profile::ProfileBuilder::from_string("", profile, period));
509 py::call_guard<py::gil_scoped_release>(),
510 "Specify a profile modeling the external load according to an exhaustive list. "
511 "Each line of the profile describes timed events as ``date bandwidth`` (in bytes per second). "
512 "For example, the following content describes a link which bandwidth changes to 40 Mb/s at t=4, and to 6 "
514 ".. code-block:: python\n\n"
519 ".. warning:: Don't get fooled: bandwidth and latency profiles of links contain absolute values,"
520 " while speed profiles of hosts contain ratios.\n\n"
521 "The second function parameter is the periodicity: the time to wait after the last event to start again over "
522 "the list. Set it to -1 to not loop over.")
524 "set_latency_profile",
525 [](Link* l, const std::string& profile, double period) {
526 l->set_latency_profile(simgrid::kernel::profile::ProfileBuilder::from_string("", profile, period));
528 py::call_guard<py::gil_scoped_release>(),
529 "Specify a profile modeling the external load according to an exhaustive list. "
530 "Each line of the profile describes timed events as ``date latency`` (in seconds). "
531 "For example, the following content describes a link which latency changes to 1ms (0.001s) at t=1, and to 2s "
533 ".. code-block:: python\n\n"
538 ".. warning:: Don't get fooled: bandwidth and latency profiles of links contain absolute values,"
539 " while speed profiles of hosts contain ratios.\n\n"
540 "The second function parameter is the periodicity: the time to wait after the last event to start again over "
541 "the list. Set it to -1 to not loop over.")
544 [](Link* l, const std::string& profile, double period) {
545 l->set_state_profile(simgrid::kernel::profile::ProfileBuilder::from_string("", profile, period));
547 "Specify a profile modeling the churn. "
548 "Each line of the profile describes timed events as ``date boolean``, where the boolean (0 or 1) tells "
549 "whether the link is on. "
550 "For example, the following content describes a link which turns off at t=1 and back on at t=2:\n\n"
551 ".. code-block:: python\n\n"
556 "The second function parameter is the periodicity: the time to wait after the last event to start again over "
557 "the list. Set it to -1 to not loop over.")
559 .def("turn_on", &Link::turn_on, py::call_guard<py::gil_scoped_release>(), "Turns the link on.")
560 .def("turn_off", &Link::turn_off, py::call_guard<py::gil_scoped_release>(), "Turns the link off.")
561 .def("is_on", &Link::is_on, "Check whether the link is on.")
563 .def("set_sharing_policy", &Link::set_sharing_policy, py::call_guard<py::gil_scoped_release>(),
564 "Set sharing policy for this link")
565 .def("set_concurrency_limit", &Link::set_concurrency_limit, py::call_guard<py::gil_scoped_release>(),
566 "Set concurrency limit for this link")
567 .def("set_host_wifi_rate", &Link::set_host_wifi_rate, py::call_guard<py::gil_scoped_release>(),
568 "Set level of communication speed of given host on this Wi-Fi link")
569 .def_static("by_name", &Link::by_name, "Retrieves a Link from its name, or dies")
570 .def("seal", &Link::seal, py::call_guard<py::gil_scoped_release>(), "Seal this link")
571 .def_property_readonly(
573 [](const Link* self) {
574 return std::string(self->get_name().c_str()); // Convert from xbt::string because of MC
576 "The name of this link")
577 .def_property_readonly("bandwidth", &Link::get_bandwidth,
578 "The bandwidth (in bytes per second) (read-only property).")
579 .def_property_readonly("latency", &Link::get_latency, "The latency (in seconds) (read-only property).");
581 py::enum_<Link::SharingPolicy>(link, "SharingPolicy")
582 .value("NONLINEAR", Link::SharingPolicy::NONLINEAR)
583 .value("WIFI", Link::SharingPolicy::WIFI)
584 .value("SPLITDUPLEX", Link::SharingPolicy::SPLITDUPLEX)
585 .value("SHARED", Link::SharingPolicy::SHARED)
586 .value("FATPIPE", Link::SharingPolicy::FATPIPE)
589 /* Class LinkInRoute */
590 py::class_<simgrid::s4u::LinkInRoute> linkinroute(m, "LinkInRoute", "Abstraction to add link in routes");
591 linkinroute.def(py::init<const Link*>());
592 linkinroute.def(py::init<const Link*, simgrid::s4u::LinkInRoute::Direction>());
593 py::enum_<simgrid::s4u::LinkInRoute::Direction>(linkinroute, "Direction")
594 .value("UP", simgrid::s4u::LinkInRoute::Direction::UP)
595 .value("DOWN", simgrid::s4u::LinkInRoute::Direction::DOWN)
596 .value("NONE", simgrid::s4u::LinkInRoute::Direction::NONE)
599 /* Class Split-Duplex Link */
600 py::class_<simgrid::s4u::SplitDuplexLink, Link, std::unique_ptr<simgrid::s4u::SplitDuplexLink, py::nodelete>>(
601 m, "SplitDuplexLink", "Network split-duplex link")
603 [](py::object self) // XBT_ATTRIB_DEPRECATED_v334
605 PyErr_WarnEx(PyExc_DeprecationWarning,
606 "get_link_up() is deprecated and will be dropped after v3.33, use link_up instead.", 1);
607 return self.attr("link_up");
609 .def_property_readonly("link_up", &simgrid::s4u::SplitDuplexLink::get_link_up, "Get link direction up")
610 .def("get_link_down",
611 [](py::object self) // XBT_ATTRIB_DEPRECATED_v334
613 PyErr_WarnEx(PyExc_DeprecationWarning,
614 "get_link_down() is deprecated and will be dropped after v3.33, use link_down instead.", 1);
615 return self.attr("link_down");
617 .def_property_readonly("link_down", &simgrid::s4u::SplitDuplexLink::get_link_down, "Get link direction down");
620 py::class_<simgrid::s4u::Mailbox, std::unique_ptr<Mailbox, py::nodelete>>(
621 m, "Mailbox", "Mailbox. See the C++ documentation for details.")
623 "__str__", [](const Mailbox* self) { return std::string("Mailbox(") + self->get_cname() + ")"; },
624 "Textual representation of the Mailbox`")
625 .def("by_name", &Mailbox::by_name, py::call_guard<py::gil_scoped_release>(), "Retrieve a Mailbox from its name")
626 .def_property_readonly(
628 [](const Mailbox* self) {
629 return std::string(self->get_name().c_str()); // Convert from xbt::string because of MC
631 "The name of that mailbox (read-only property).")
634 [](Mailbox* self, py::object data, int size, double timeout) {
636 self->put(data.ptr(), size, timeout);
638 py::call_guard<py::gil_scoped_release>(), "Blocking data transmission with a timeout")
641 [](Mailbox* self, py::object data, int size) {
643 self->put(data.ptr(), size);
645 py::call_guard<py::gil_scoped_release>(), "Blocking data transmission")
648 [](Mailbox* self, py::object data, int size) {
650 return self->put_async(data.ptr(), size);
652 py::call_guard<py::gil_scoped_release>(), "Non-blocking data transmission")
656 py::object data = py::reinterpret_steal<py::object>(self->get<PyObject>());
657 // data.dec_ref(); // FIXME: why does it break python-actor-create?
660 py::call_guard<py::gil_scoped_release>(), "Blocking data reception")
663 [](Mailbox* self) -> std::tuple<simgrid::s4u::CommPtr, PyGetAsync> {
665 auto comm = self->get_async(wrap.get());
666 return std::make_tuple(std::move(comm), std::move(wrap));
668 py::call_guard<py::gil_scoped_release>(),
669 "Non-blocking data reception. Use data.get() to get the python object after the communication has finished")
671 "set_receiver", [](Mailbox* self, ActorPtr actor) { self->set_receiver(actor); },
672 py::call_guard<py::gil_scoped_release>(), "Sets the actor as permanent receiver");
674 /* Class PyGetAsync */
675 py::class_<PyGetAsync>(m, "PyGetAsync", "Wrapper for async get communications")
678 "get", [](const PyGetAsync* self) { return py::reinterpret_steal<py::object>(*(self->get())); },
679 "Get python object after async communication in receiver side");
682 py::class_<simgrid::s4u::Comm, simgrid::s4u::CommPtr>(m, "Comm",
683 "Communication. See the C++ documentation for details.")
684 .def("test", &simgrid::s4u::Comm::test, py::call_guard<py::gil_scoped_release>(),
685 "Test whether the communication is terminated.")
686 .def("wait", &simgrid::s4u::Comm::wait, py::call_guard<py::gil_scoped_release>(),
687 "Block until the completion of that communication.")
688 // use py::overload_cast for wait_all/wait_any, until the overload marked XBT_ATTRIB_DEPRECATED_v332 is removed
690 "wait_all", py::overload_cast<const std::vector<simgrid::s4u::CommPtr>&>(&simgrid::s4u::Comm::wait_all),
691 py::call_guard<py::gil_scoped_release>(), "Block until the completion of all communications in the list.")
693 "wait_any", py::overload_cast<const std::vector<simgrid::s4u::CommPtr>&>(&simgrid::s4u::Comm::wait_any),
694 py::call_guard<py::gil_scoped_release>(),
695 "Block until the completion of any communication in the list and return the index of the terminated one.");
698 py::class_<simgrid::s4u::Io, simgrid::s4u::IoPtr>(m, "Io", "I/O activities. See the C++ documentation for details.")
699 .def("test", &simgrid::s4u::Io::test, py::call_guard<py::gil_scoped_release>(),
700 "Test whether the I/O is terminated.")
701 .def("wait", &simgrid::s4u::Io::wait, py::call_guard<py::gil_scoped_release>(),
702 "Block until the completion of that I/O operation")
704 "wait_any_for", &simgrid::s4u::Io::wait_any_for, py::call_guard<py::gil_scoped_release>(),
705 "Block until the completion of any I/O in the list (or timeout) and return the index of the terminated one.")
706 .def_static("wait_any", &simgrid::s4u::Io::wait_any, py::call_guard<py::gil_scoped_release>(),
707 "Block until the completion of any I/O in the list and return the index of the terminated one.");
710 py::class_<simgrid::s4u::Exec, simgrid::s4u::ExecPtr>(m, "Exec", "Execution. See the C++ documentation for details.")
711 .def_property_readonly(
713 [](simgrid::s4u::ExecPtr self) {
714 py::gil_scoped_release gil_guard;
715 return self->get_remaining();
717 "Amount of flops that remain to be computed until completion (read-only property).")
718 .def_property_readonly(
720 [](simgrid::s4u::ExecPtr self) {
721 py::gil_scoped_release gil_guard;
722 return self->get_remaining_ratio();
724 "Amount of work remaining until completion from 0 (completely done) to 1 (nothing done "
725 "yet) (read-only property).")
726 .def_property("host", &simgrid::s4u::Exec::get_host, &simgrid::s4u::Exec::set_host,
727 "Host on which this execution runs. Only the first host is returned for parallel executions. "
728 "Changing this value migrates the execution.")
729 .def("test", &simgrid::s4u::Exec::test, py::call_guard<py::gil_scoped_release>(),
730 "Test whether the execution is terminated.")
731 .def("cancel", &simgrid::s4u::Exec::cancel, py::call_guard<py::gil_scoped_release>(), "Cancel that execution.")
732 .def("start", &simgrid::s4u::Exec::start, py::call_guard<py::gil_scoped_release>(), "Start that execution.")
733 .def("wait", &simgrid::s4u::Exec::wait, py::call_guard<py::gil_scoped_release>(),
734 "Block until the completion of that execution.");
737 py::class_<simgrid::s4u::Actor, ActorPtr>(m, "Actor",
738 "An actor is an independent stream of execution in your distributed "
739 "application. See the C++ documentation for details.")
742 [](py::str name, Host* h, py::object fun, py::args args) {
743 fun.inc_ref(); // FIXME: why is this needed for tests like exec-async, exec-dvfs and exec-remote?
744 args.inc_ref(); // FIXME: why is this needed for tests like actor-migrate?
745 return simgrid::s4u::Actor::create(name, h, [fun, args]() {
746 py::gil_scoped_acquire py_context;
749 } catch (const py::error_already_set& ex) {
750 if (ex.matches(pyForcefulKillEx)) {
751 XBT_VERB("Actor killed");
752 simgrid::ForcefulKillException::do_throw(); // Forward that ForcefulKill exception
758 py::call_guard<py::gil_scoped_release>(),
759 "Create an actor from a function or an object. See the :ref:`example <s4u_ex_actors_create>`.")
761 "host", &Actor::get_host,
762 [](Actor* a, Host* h) {
763 py::gil_scoped_release gil_guard;
766 "The host on which this actor is located. Changing this value migrates the actor.\n\n"
767 "If the actor is currently blocked on an execution activity, the activity is also migrated to the new host. "
768 "If it’s blocked on another kind of activity, an error is raised as the mandated code is not written yet. "
769 "Please report that bug if you need it.\n\n"
770 "Asynchronous activities started by the actor are not migrated automatically, so you have to take care of "
771 "this yourself (only you knows which ones should be migrated). ")
772 .def_property_readonly("name", &Actor::get_cname, "The name of this actor (read-only property).")
773 .def_property_readonly("pid", &Actor::get_pid, "The PID (unique identifier) of this actor (read-only property).")
774 .def_property_readonly("ppid", &Actor::get_ppid,
775 "The PID (unique identifier) of the actor that created this one (read-only property).")
776 .def("by_pid", &Actor::by_pid, "Retrieve an actor by its PID")
777 .def("set_auto_restart", &Actor::set_auto_restart, py::call_guard<py::gil_scoped_release>(),
778 "Specify whether the actor shall restart when its host reboots.")
779 .def("daemonize", &Actor::daemonize, py::call_guard<py::gil_scoped_release>(),
780 "This actor will be automatically terminated when the last non-daemon actor finishes (more info in the C++ "
782 .def("is_daemon", &Actor::is_daemon,
783 "Returns True if that actor is a daemon and will be terminated automatically when the last non-daemon actor "
785 .def("join", py::overload_cast<double>(&Actor::join, py::const_), py::call_guard<py::gil_scoped_release>(),
786 "Wait for the actor to finish (more info in the C++ documentation).", py::arg("timeout"))
787 .def("kill", &Actor::kill, py::call_guard<py::gil_scoped_release>(), "Kill that actor")
788 .def("kill_all", &Actor::kill_all, py::call_guard<py::gil_scoped_release>(), "Kill all actors but the caller.")
789 .def("self", &Actor::self, "Retrieves the current actor.")
790 .def("is_suspended", &Actor::is_suspended, "Returns True if that actor is currently suspended.")
791 .def("suspend", &Actor::suspend, py::call_guard<py::gil_scoped_release>(),
792 "Suspend that actor, that is blocked until resume()ed by another actor.")
793 .def("resume", &Actor::resume, py::call_guard<py::gil_scoped_release>(),
794 "Resume that actor, that was previously suspend()ed.");