MC:
- Rework the internals, for simpler and modern code. This shall unlock many future improvements.
- - You can now define plugins onto SafetyChecker (a simple DFS explorer), using the declared signals.
- See CommunicationDeterminism for an example.
+ - You can now define plugins onto the DFS explorer (previously called SafetyChecker), using the
+ declared signals. See CommunicationDeterminism for an example.
- Support mutex, semaphore and barrier in DPOR reduction
- Seems to work on Arm64 architectures too.
- Display a nice error message when ptrace is not usable.
S4U:
- New signal: Engine::on_simulation_start_cb()
+ - Introduce a new execution mode with this_actor::thread_execute(). This simulate
+ the execution of a certain amount of flops by multiple threads ran by a host. Each
+ thread executes the same number of flops, given as argument. An example of this new
+ function can be found in examples/cpp/exec-threads.
- Reimplementation of barriers natively.
Previously, they were implemented on top of s4u::Mutex and s4u::ConditionVariable.
The new version should be faster (and can be used in the model-checker).
+ - Actor::get_restart_count(): Returns the number of reboots that this actor did.
MSG:
- MSG_barrier_destroy now expects a non-const msg_barrier parameter.
- Along with the new simgrid-monkey script, it tests whether your simulation
resists resource failures at any possible timestamp in your simulation.
- It is mostly intended to test the simgrid core in extreme conditions,
- but users may find it interesting too.
+ but some users may find it interesting too.
+
+Models:
+ - New model for parallel task: ptask_BMF.
+ - More realistic sharing of heterogeneous resources compared to ptask_L07.
+ - Implement the BMF (Bottleneck max fairness) fairness.
+ - Improved resource sharing for parallel tasks with sub-flows (parallel
+ communications between same source and destination inside the ptask).
+ - Parameters:
+ - "--cfg=host/model:ptask_BMF": enable the model.
+ - "--cfg=bmf/max-iterations: <N>" - maximum number of iterations performed
+ by BMF solver (default: 1000).
+ - "--cfg=bmf/selective-update:<true/false>" - enable/disable the
+ selective-update optimization. Only invalidates and recomputes modified
+ parts of inequations system. May speed up simulation if sparse resource
+ utilization (default: false).
+ - ATTENTION: this model requires Eigen3 library. If you install SimGrid
+ from source, please see the "Installing from source" section:
+ https://simgrid.org/doc/latest/Installing_SimGrid.html#installing-from-the-source.
+ No action is required if you use pre-compiled packages.
XBT:
- Drop xbt_dynar_shrink().
Python:
- - Added the following bindings: Comm.wait_for() and Comm.wait_any_for()
- Example: examples/python/comm-waitfor/
+ - Fixed the following bindings:
+ - Actor.kill_all() [previously declared a member of the Actor class although it is a static member]
+ - Added the following bindings:
+ - this_actor.warning()
+ - Mailbox.put_init() [example: examples/python/comm-waitallfor]
+ - Comm.detach() [example: examples/python/comm-waitallfor]
+ - Comm.wait_for() [example: examples/python/comm-waitfor/]
+ - Comm.wait_any_for()
+ - Comm.wait_all_for() [example: examples/python/comm-waitallfor]
Fixed bugs (FG#.. -> FramaGit bugs; FG!.. -> FG merge requests)
(FG: issues on Framagit; GH: issues on GitHub)
.. doxygenfunction:: simgrid::s4u::Actor::join() const
.. doxygenfunction:: simgrid::s4u::Actor::join(double timeout) const
.. doxygenfunction:: simgrid::s4u::Actor::set_auto_restart(bool autorestart)
+ .. doxygenfunction:: simgrid::s4u::Actor::get_restart_count()
.. group-tab:: Python
.. autofunction:: simgrid.this_actor.debug
.. autofunction:: simgrid.this_actor.info
+ .. autofunction:: simgrid.this_actor.warning
.. autofunction:: simgrid.this_actor.error
Sleeping
.. automethod:: simgrid.Mailbox.put
.. automethod:: simgrid.Mailbox.put_async
+ .. automethod:: simgrid.Mailbox.put_init
.. group-tab:: C
.. doxygenfunction:: simgrid::s4u::Mailbox::get(double timeout)
.. doxygenfunction:: simgrid::s4u::Mailbox::get_async(T **data)
.. doxygenfunction:: simgrid::s4u::Mailbox::get_init()
- .. doxygenfunction:: simgrid::s4u::Mailbox::iprobe(int type, bool(*match_fun)(void *, void *, kernel::activity::CommImpl *), void *data)
+ .. doxygenfunction:: simgrid::s4u::Mailbox::iprobe(int type, const std::function<bool(void *, void *, kernel::activity::CommImpl *)>& match_fun, void *data)
.. doxygenfunction:: simgrid::s4u::Mailbox::listen
.. doxygenfunction:: simgrid::s4u::Mailbox::ready
#include <simgrid/comm.h>
.. doxygentypedef:: sg_comm_t
- .. doxygentypedef:: const_sg_comm_t
Querying info
-------------
.. doxygenfunction:: simgrid::s4u::Comm::set_dst_data(void **buff)
.. doxygenfunction:: simgrid::s4u::Comm::set_dst_data(void **buff, size_t size)
.. doxygenfunction:: simgrid::s4u::Comm::detach()
- .. doxygenfunction:: simgrid::s4u::Comm::detach(void(*clean_function)(void *))
+ .. doxygenfunction:: simgrid::s4u::Comm::detach(const std::function<void(void*)>& clean_function)
.. doxygenfunction:: simgrid::s4u::Comm::set_payload_size(uint64_t bytes)
.. doxygenfunction:: simgrid::s4u::Comm::set_rate(double rate)
.. doxygenfunction:: simgrid::s4u::Comm::set_src_data(void *buff)
.. doxygenfunction:: simgrid::s4u::Comm::set_src_data(void *buff, size_t size)
.. doxygenfunction:: simgrid::s4u::Comm::set_src_data_size(size_t size)
+ .. group-tab:: Python
+
+ .. automethod:: simgrid.Comm.detach
+
Life cycle
----------
.. automethod:: simgrid.Comm.wait
.. automethod:: simgrid.Comm.wait_for
.. automethod:: simgrid.Comm.wait_all
+ .. automethod:: simgrid.Comm.wait_all_for
.. automethod:: simgrid.Comm.wait_any
.. automethod:: simgrid.Comm.wait_any_for
#include <simgrid/barrier.hpp>
.. doxygentypedef:: sg_bar_t
- .. doxygentypedef:: const_sg_bar_t
.. doxygenfunction:: sg_barrier_init(unsigned int count)
- .. doxygenfunction:: sg_barrier_destroy(const_sg_bar_t bar)
+ .. doxygenfunction:: sg_barrier_destroy(sg_bar_t bar)
.. doxygenfunction:: sg_barrier_wait(sg_bar_t bar)
