double flops_amount, double priority, double bound);
XBT_PRIVATE smx_activity_t SIMIX_execution_parallel_start(const char *name,
int host_nb, sg_host_t *host_list,
double flops_amount, double priority, double bound);
XBT_PRIVATE smx_activity_t SIMIX_execution_parallel_start(const char *name,
int host_nb, sg_host_t *host_list,