Function parallel

nevergrad/benchmark/experiments.py:1252–1269

Parallel optimization on 3 classical objective functions: sphere, rastrigin, cigar. The number of workers is 20 % of the budget. Testing both no useless variables and 5/6 of useless variables.

(seed: tp.Optional[int] = None)

@registry.register
def parallel(seed: tp.Optional[int] = None) -> tp.Iterator[Experiment]:
    """Parallel optimization on 3 classical objective functions: sphere, rastrigin, cigar.
    The number of workers is 20 % of the budget.
    Testing both no useless variables and 5/6 of useless variables."""
    seedg = create_seed_generator(seed)
    names = ["sphere", "rastrigin", "cigar"]
    optims: tp.List[str] = get_optimizers("parallel_basics", seed=next(seedg))  # type: ignore
    functions = [
        ArtificialFunction(name, block_dimension=bd, useless_variables=bd * uv_factor)
        for name in names
        for bd in [25]
        for uv_factor in [0, 5]
    ]
    optims = refactor_optims(optims)
    for func in functions:
        for optim in optims:
            for budget in [30, 100, 3000]:
                yield Experiment(func, optim, budget=budget, num_workers=int(budget / 5), seed=next(seedg))


@registry.register