Method do_batch_begin_cbs

src/execution_algorithms/sgd_training_algorithm.cpp:470–493

}

void SGDTrainingAlgorithm::do_batch_begin_cbs(model& model,
                                              execution_mode mode,
                                              ScopeTimer timer)
{
  SGDExecutionContext& c =
    static_cast<SGDExecutionContext&>(model.get_execution_context());

  for (const auto& cb : model.get_callbacks()) {
    switch (mode) {
    case execution_mode::training:
      if (c.get_step() % cb->get_batch_interval() == 0) {
        cb->on_batch_begin(&model);
      }
      break;
    case execution_mode::validation:
    case execution_mode::tournament:
    case execution_mode::testing:
      cb->on_batch_evaluate_begin(&model);
      break;
    default:
      LBANN_ERROR("invalid execution mode");
    }
  }
}

void SGDTrainingAlgorithm::do_batch_end_cbs(model& model,
                                            execution_mode mode,