-SimGrid (3.30.1) NOT RELEASED YET (v3.31 expected March 20. 2022, 15:33 UTC)
+SimGrid (3.31.1) NOT RELEASED YET (v3.32 expected June 21. 2022, 09:13 UTC)
+
+----------------------------------------------------------------------------
+
+S4U:
+ - kill signal Comm::on_completion that was not working anyway.
+ - Expose signals Activity::on_suspend and Activity::on_resume
+
+SimGrid (3.31) March 22. 2022.
The ненасильство release. We stand against war.
- tracing: ensure that we dump the TI traces continuously during execution and
not just at the end, reducing memory cost and performance hit.
- Update OpenMPI collectives selection logic to match current one (4.1.2)
+ - Add a coherence check for collective operation order and root/MPI_Op
+ coherence. Potentially costly so not activated unless smpi:pendantic is set
+ or -analyze is given.
S4U:
- New signal: Engine::on_simulation_start_cb()
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.
+ - New solver for parallel task: BMF.
+ - More realistic sharing of heterogeneous resources compared to the fair
+ bottleneck solver used by 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=host/model:ptask_L07 --cfg=host/solver:bmf": enable the ptask
+ model with BMF solver.
- "--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).
+ - "--cfg=bmf/precision: <N>": numerical precision used when computing
+ resource sharing (default: 1e-12).
- This model requires Eigen3 library. Make sure Eigen3 is installed to use BMF.
General:
