paradiseo/smp/tutorial/Lesson2/README.md
Eremey Valetov c1a44fd2a6 Add tutorial READMEs and fix tutorial return codes
Add README.md files for moeo/tutorial/Lesson{1-4}, smp/tutorial/Lesson{1-4},
and mo/tutorial/Lesson9 — these tutorials had no documentation.

Fix return 1 → return 0 in 28 tutorial main() functions across mo/ and
smp/ that unconditionally returned failure status.
2026-02-28 19:26:10 -05:00

30 lines
730 B
Markdown

# Homogeneous island model
Three islands running the same algorithm (`eoEasyEA`) with a complete
topology — all islands exchange individuals with all others.
Same QAP problem as Lesson 1.
## Running
From the `build/smp/tutorial/Lesson2` directory:
```shell
./lesson2_homogeneous
```
The problem instance is loaded from `../lessonData.dat`.
## How it works
All islands share the same operators (evaluation, selection, crossover,
mutation, replacement) but can have different parameters. The topology
and island model are set up with:
```c++
Topology<Complete> topo;
IslandModel<Indi> model(topo);
```
Each island gets its own population and generation limit, then the model
runs them in parallel and handles migration.