def __init__(self, cpu_usage_predictor_manager: CpuUsagePredictorManager,
config_manager: ConfigManager,
free_thread_provider: FreeThreadProvider):
self.__reg = None
self.__time_bound_call_count = 0
self.__rebalance_failure_count = 0
self.__ip_solver_params = IPSolverParameters(
alpha_nu=config_manager.get_float(ALPHA_NU, DEFAULT_ALPHA_NU),
alpha_llc=config_manager.get_float(ALPHA_LLC, DEFAULT_ALPHA_LLC),
alpha_l12=config_manager.get_float(ALPHA_L12, DEFAULT_ALPHA_L12),
alpha_prev=config_manager.get_float(ALPHA_PREV,
DEFAULT_ALPHA_PREV))
self.__solver_max_runtime_secs = config_manager.get_float(
MAX_SOLVER_RUNTIME, DEFAULT_MAX_SOLVER_RUNTIME)
self.__solver_name = config_manager.get_str(MIP_SOLVER,
DEFAULT_MIP_SOLVER)
self.__solver_mip_gap = config_manager.get_float(
RELATIVE_MIP_GAP_STOP, DEFAULT_RELATIVE_MIP_GAP_STOP)
self.__cpu_usage_predictor_manager = cpu_usage_predictor_manager
self.__config_manager = config_manager
self.__free_thread_provider = free_thread_provider
self.__cnt_rebalance_calls = 0
self.__call_meta = None # track things __place_threads call
def get_free_thread_provider(
config_manager: ConfigManager) -> FreeThreadProvider:
free_thread_provider_str = config_manager.get_str(
FREE_THREAD_PROVIDER, DEFAULT_FREE_THREAD_PROVIDER)
free_thread_provider = None
total_threshold = config_manager.get_float(TOTAL_THRESHOLD,
DEFAULT_TOTAL_THRESHOLD)
if free_thread_provider_str == EMPTY:
free_thread_provider = EmptyFreeThreadProvider()
elif free_thread_provider_str == OVERSUBSCRIBE:
free_thread_provider = OversubscribeFreeThreadProvider(total_threshold)
log.debug("Free thread provider: '{}'".format(
free_thread_provider.__class__.__name__))
return free_thread_provider