hots.allocation

Provide resource allocation related functions to handle this problem.

hots.allocation.change_df_max(my_instance, c_id, max_c)[source]

Change the DataFrame (resources values) after changing max.

Parameters:

  • my_instance (Instance) – The Instance object of the current run

  • c_id (str) – ID of container to change values

  • max_c (float) – New bound value for c_id data

hots.allocation.change_max_bound(my_instance, config, min_time)[source]

Change max possible resource usage by containers.

Parameters:

  • my_instance (Instance) – The Instance object of the current run

  • config (Dict) – Current HOTS run parameters

  • min_time (int) – T0 of current time window

hots.allocation.check_constraints(my_instance, working_df_indiv, config)[source]

Check if allocation constraints are satisfied or not.

Parameters:

  • my_instance (Instance) – The Instance object of the current run

  • working_df_indiv (pd.DataFrame) – Dataframe with current window individual data

  • config (Dict) – Current HOTS run parameters

Returns:

True if all constraints are satisfied, False otherwise

Return type:

bool

hots.allocation.get_abs_goal_load(my_instance, config)[source]

Get the load goal in absolute value.

Parameters:

  • my_instance (Instance) – The Instance object of the current run

  • config (Dict) – Current HOTS run parameters

Returns:

Load value to achieve from parameters

Return type:

float

hots.allocation.get_max_by_node(df_indiv)[source]

Get the max possible usage of every container, by node.

Parameters:

df_indiv (pd.DataFrame) – Dataframe storing individual data

Returns:

Max container value for each node

Return type:

Dict

hots.allocation.get_total_max(max_by_node)[source]

Get the total amount of max resources.

Parameters:

max_by_node (Dict) – Dict object of max container value in each node

Returns:

Sum of every container max value from each node

Return type:

float

hots.allocation.is_max_goal_ok(current_max_by_node, max_goal)[source]

Check is the max usage objective is satisfied.

Parameters:

  • current_max_by_node (Dict) – Max container value for each node

  • max_goal (float) – Max value objective (not to exceed)

Returns:

True if objective is satisfied, False otherwise

Return type:

bool

hots.allocation.move_containers(my_instance, config)[source]

Move containers in order to satisfy number open nodes target.

Parameters:

  • my_instance (Instance) – The Instance object of the current run

  • config (Dict) – Current HOTS run parameters

hots.allocation.resources_to_remove(max_goal, max_by_node)[source]

Compute the amount of resources to remove to reach the load goal.

Parameters:

  • max_goal (float) – Load value to achieve from parameters

  • max_by_node (Dict) – Max container value for each node

Returns:

Value to retrieve for reaching load goal

Return type:

float

hots.allocation.round_decimals_up(number, decimals=2)[source]

Return a value rounded up to a specific number of decimal places.

Parameters:

  • number (float) – Value to round up

  • decimals (int, optional) – Wanted numbers after comma, defaults to 2

Raises:

  • TypeError – Wrong type for decimals

  • ValueError – Non-positive value for decimals

Returns:

Rounded up value

Return type:

float