hpcflow.sdk.core.element.ElementResources#

class hpcflow.sdk.core.element.ElementResources(scratch=None, parallel_mode=None, num_cores=None, num_cores_per_node=None, num_threads=None, num_nodes=None, scheduler=None, shell=None, use_job_array=None, max_array_items=None, time_limit=None, scheduler_args=None, shell_args=None, os_name=None, environments=None, SGE_parallel_env=None, SLURM_partition=None, SLURM_num_tasks=None, SLURM_num_tasks_per_node=None, SLURM_num_nodes=None, SLURM_num_cpus_per_task=None)#

Bases: JSONLike

The resources an element requires.

Note

It is common to leave most of these unspecified. Many of them have complex interactions with each other.

Parameters:
  • scratch (str) – Which scratch space to use.

  • parallel_mode (ParallelMode) – Which parallel mode to use.

  • num_cores (int) – How many cores to request.

  • num_cores_per_node (int) – How many cores per compute node to request.

  • num_threads (int) – How many threads to request.

  • num_nodes (int) – How many compute nodes to request.

  • scheduler (str) – Which scheduler to use.

  • shell (str) – Which system shell to use.

  • use_job_array (bool) – Whether to use array jobs.

  • max_array_items (int) – If using array jobs, up to how many items should be in the job array.

  • time_limit (str) – How long to run for.

  • scheduler_args (dict[str, Any]) – Additional arguments to pass to the scheduler.

  • shell_args (dict[str, Any]) – Additional arguments to pass to the shell.

  • os_name (str) – Which OS to use.

  • environments (dict) – Which execution environments to use.

  • SGE_parallel_env (str) – Which SGE parallel environment to request.

  • SLURM_partition (str) – Which SLURM partition to request.

  • SLURM_num_tasks (str) – How many SLURM tasks to request.

  • SLURM_num_tasks_per_node (str) – How many SLURM tasks per compute node to request.

  • SLURM_num_nodes (str) – How many compute nodes to request.

  • SLURM_num_cpus_per_task (str) – How many CPU cores to ask for per SLURM task.

Methods

from_json_like

Make an instance of this class from JSON (or YAML) data.

get_default_os_name

Get the default value for OS name.

get_default_scheduler

Get the default value for scheduler.

get_default_shell

Get the default value for name.

get_env_instance_filterable_attributes

Get a tuple of resource attributes that are used to filter environment executable instances at submit- and run-time.

get_jobscript_hash

Get hash from all arguments that distinguish jobscripts.

set_defaults

Set defaults for unspecified values that need defaults.

to_dict

Serialize this object as a dictionary.

to_json_like

Serialize this object as an object structure that can be trivially converted to JSON.

validate_against_machine

Validate the values for os_name, shell and scheduler against those supported on this machine (as specified by the app configuration).

Attributes

SGE_parallel_env

Which SGE parallel environment to request.

SLURM_is_parallel

Returns True if any SLURM-specific arguments indicate a parallel job.

SLURM_num_cpus_per_task

How many CPU cores to ask for per SLURM task.

SLURM_num_nodes

How many compute nodes to request.

SLURM_num_tasks

How many SLURM tasks to request.

SLURM_num_tasks_per_node

How many SLURM tasks per compute node to request.

SLURM_partition

Which SLURM partition to request.

environments

Which execution environments to use.

is_parallel

Returns True if any scheduler-agnostic arguments indicate a parallel job.

max_array_items

If using array jobs, up to how many items should be in the job array.

num_cores

How many cores to request.

num_cores_per_node

How many cores per compute node to request.

num_nodes

How many compute nodes to request.

num_threads

How many threads to request.

os_name

Which OS to use.

parallel_mode

Which parallel mode to use.

scheduler

Which scheduler to use.

scheduler_args

Additional arguments to pass to the scheduler.

scratch

Which scratch space to use.

shell

Which system shell to use.

shell_args

Additional arguments to pass to the shell.

time_limit

How long to run for.

use_job_array

Whether to use array jobs.

SGE_parallel_env: str = None#

Which SGE parallel environment to request.

property SLURM_is_parallel: bool#

Returns True if any SLURM-specific arguments indicate a parallel job.

SLURM_num_cpus_per_task: str = None#

How many CPU cores to ask for per SLURM task.

SLURM_num_nodes: str = None#

How many compute nodes to request.

SLURM_num_tasks: str = None#

How many SLURM tasks to request.

SLURM_num_tasks_per_node: str = None#

How many SLURM tasks per compute node to request.

SLURM_partition: str = None#

Which SLURM partition to request.

environments: Dict | None = None#

Which execution environments to use.

classmethod from_json_like(json_like, shared_data=None)#

Make an instance of this class from JSON (or YAML) data.

Parameters:
  • json_like (Union[Dict, List]) – The data to deserialise.

  • shared_data (Optional[Dict[str, ObjectList]]) – Shared context data.

Return type:

The deserialised object.

static get_default_os_name()#

Get the default value for OS name.

classmethod get_default_scheduler(os_name, shell_name)#

Get the default value for scheduler.

classmethod get_default_shell()#

Get the default value for name.

static get_env_instance_filterable_attributes()#

Get a tuple of resource attributes that are used to filter environment executable instances at submit- and run-time.

Return type:

Tuple[str]

get_jobscript_hash()#

Get hash from all arguments that distinguish jobscripts.

property is_parallel: bool#

Returns True if any scheduler-agnostic arguments indicate a parallel job.

max_array_items: int | None = None#

If using array jobs, up to how many items should be in the job array.

num_cores: int | None = None#

How many cores to request.

num_cores_per_node: int | None = None#

How many cores per compute node to request.

num_nodes: int | None = None#

How many compute nodes to request.

num_threads: int | None = None#

How many threads to request.

os_name: str | None = None#

Which OS to use.

parallel_mode: ParallelMode | None = None#

Which parallel mode to use.

scheduler: str | None = None#

Which scheduler to use.

scheduler_args: Dict | None = None#

Additional arguments to pass to the scheduler.

scratch: str | None = None#

Which scratch space to use.

set_defaults()#

Set defaults for unspecified values that need defaults.

shell: str | None = None#

Which system shell to use.

shell_args: Dict | None = None#

Additional arguments to pass to the shell.

time_limit: str | None = None#

How long to run for.

to_dict()#

Serialize this object as a dictionary.

to_json_like(dct=None, shared_data=None, exclude=None, path=None)#

Serialize this object as an object structure that can be trivially converted to JSON. Note that YAML can also be produced from the result of this method; it just requires a different final serialization step.

use_job_array: bool | None = None#

Whether to use array jobs.

validate_against_machine()#

Validate the values for os_name, shell and scheduler against those supported on this machine (as specified by the app configuration).