XBT_PRIVATE double SIMIX_host_get_power_peak_at(sg_host_t host, int pstate_index);
XBT_PRIVATE double SIMIX_host_get_wattmin_at(sg_host_t host,int pstate);
XBT_PRIVATE double SIMIX_host_get_wattmax_at(sg_host_t host,int pstate);
-XBT_PRIVATE void SIMIX_host_set_pstate(sg_host_t host, int pstate_index);
XBT_PRIVATE smx_synchro_t SIMIX_process_execute(smx_process_t issuer, const char *name,
double flops_amount, double priority, double bound, unsigned long affinity_mask);
XBT_PRIVATE smx_synchro_t SIMIX_process_parallel_execute(const char *name,