boost::intrusive_ptr<simgrid::kernel::activity::ExecImpl>
SIMIX_execution_parallel_start(const char* name, int host_nb, sg_host_t* host_list, double* flops_amount,
boost::intrusive_ptr<simgrid::kernel::activity::ExecImpl>
SIMIX_execution_parallel_start(const char* name, int host_nb, sg_host_t* host_list, double* flops_amount,