sg_host_t* host_list_cpy = new sg_host_t[host_nb];
std::copy_n(host_list, host_nb, host_list_cpy);
exec->surfAction_ = surf_host_model->executeParallelTask(host_nb, host_list_cpy, flops_amount, bytes_amount, rate);
sg_host_t* host_list_cpy = new sg_host_t[host_nb];
std::copy_n(host_list, host_nb, host_list_cpy);
exec->surfAction_ = surf_host_model->executeParallelTask(host_nb, host_list_cpy, flops_amount, bytes_amount, rate);