doc: how to add a new dynamic sched

README.md

@@ -39,6 +39,8 @@ Dynamic submission is supported by all the schedulers inheriting from the class
   - *bin_packing_energy*: same as *bin_packing*, but saves power by switching off the machines as soon as they are idle and powering them on again when needed
   - *multicore_filler*: for test purposes. Schedules only one job at a time on only one multicore host.
 
+For guidance on how to add a new dynamic scheduler, refer to [this readme](src/scheds/readme.md).
+
 
 ## Install
 With [Nix] package manager. At the root of the project:

src/scheds/readme.md

+# Steps to create a new dynamic scheduler
+
+For now, if someone wants to create a new dynamic scheduler (or transform a static scheduler into dynamic), here is what one should do:
+
+- change super class from `ISchedulingAlgorithm` to `DynScheduler`
+- add the call `DynScheduler::on_simulation_start(date, batsim_config);` at the beginning of `on_simulation_start`
+- add the call `DynScheduler::make_decisions(date, update_info, compare_info);` at the end of `make_decisions`
+- update the status of jobs with `if (broker_enabled) broker->update_status_if_dyn_job(new_job_id, STATUS);` each time the scheduler adds or rejects a job
+
+See for example [this commit](https://gitlab.irit.fr/sepia-pub/mael/batmen/-/commit/5b4e30a631c7544ad009b2368512e78b79ffa5b9).