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.
- 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.
- Parameters:
- "--cfg=host/model:ptask_BMF": enable the model.
- "--cfg=bmf/max-iterations: <N>" - maximum number of iterations performed
- by BMF solver (default: 1000).
+ 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).
+ 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.
+ 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().
This cleaned design allowed us to finally implement the support for mutexes, semaphores and barriers in the model-checker. In particular, this should
enable the verification of RMA primitives with Mc SimGrid, as their implementation in SMPI is based on mutexes and barriers.
+We replaced the old, non-free ISP test suite by the one from the `MPI Bug Initiative <https://hal.archives-ouvertes.fr/hal-03474762>`_, but not all
+tests are activated yet. This should eventually help improving the robustness of Mc SimGrid.
+
Future work on the model checker include: support for condition variables (that are still not handled), implementation of another exploration algorithm based on UDPOR
-(`The Anh Pham's thesis <https://tel.archives-ouvertes.fr/tel-02462074/document>`_ was defended in 2019), and robustness improvement using the `MPI Bug
-Initiative <https://hal.archives-ouvertes.fr/hal-03474762>`_ tests. Many things that were long dreamed of now become technically possible in this code base.
+(`The Anh Pham's thesis <https://tel.archives-ouvertes.fr/tel-02462074/document>`_ was defended in 2019).
+Many things that were long dreamed of now become technically possible in this code base.
+
+On the model front, we added BMF...
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