Support for GlobusComputeExecutor to submit functions to globus_compu…

…te_endpoints

parsl/executors/__init__.py

@@ -1,4 +1,5 @@
 from parsl.executors.flux.executor import FluxExecutor
+from parsl.executors.globus_compute import GlobusComputeExecutor
 from parsl.executors.high_throughput.executor import HighThroughputExecutor
 from parsl.executors.high_throughput.mpi_executor import MPIExecutor
 from parsl.executors.threads import ThreadPoolExecutor
@@ -8,4 +9,5 @@
            'HighThroughputExecutor',
            'MPIExecutor',
            'WorkQueueExecutor',
-           'FluxExecutor']
+           'FluxExecutor',
+           'GlobusComputeExecutor']

parsl/executors/globus_compute.py

@@ -0,0 +1,145 @@
+import uuid
+from concurrent.futures import Future
+from typing import Any, Callable, Dict, Optional, Union
+
+import typeguard
+
+from parsl.errors import OptionalModuleMissing
+from parsl.executors.base import ParslExecutor
+from parsl.utils import RepresentationMixin
+
+UUID_LIKE_T = Union[uuid.UUID, str]
+
+
+
+class GlobusComputeExecutor(ParslExecutor, RepresentationMixin):
+    """ GlobusComputeExecutor enables remote execution on Globus Compute endpoints
+
+    GlobusComputeExecutor is a thin wrapper over globus_compute_sdk.Executor
+    Refer to `globus-compute user documentation <https://globus-compute.readthedocs.io/en/latest/executor.html>`_
+    and `reference documentation <https://globus-compute.readthedocs.io/en/latest/reference/executor.html>`_
+    for more details.
+    """
+
+    def __init__(
+            self,
+            endpoint_id: Optional[UUID_LIKE_T] = None,
+            task_group_id: Optional[UUID_LIKE_T] = None,
+            resource_specification: Optional[dict[str, Any]] = None,
+            user_endpoint_config: Optional[dict[str, Any]] = None,
+            label: str = "GlobusComputeExecutor",
+            batch_size: int = 128,
+            amqp_port: Optional[int] = None,
+            **kwargs,
+        ):
+        """
+
+        Parameters
+        ----------
+
+        endpoint_id:
+            id of the endpoint to which to submit tasks
+
+        task_group_id:
+            The Task Group to which to associate tasks.  If not set,
+            one will be instantiated.
+
+        resource_specification:
+            Specify resource requirements for individual task execution.
+
+        user_endpoint_config:
+            User endpoint configuration values as described
+            and allowed by endpoint administrators. Must be a JSON-serializable dict
+            or None.
+
+        label:
+            a label to name the executor; mainly utilized for
+            logging and advanced needs with multiple executors.
+
+        batch_size:
+            the maximum number of tasks to coalesce before
+            sending upstream [min: 1, default: 128]
+
+        amqp_port:
+            Port to use when connecting to results queue. Note that the
+            Compute web services only support 5671, 5672, and 443.
+
+        kwargs:
+            Other kwargs listed will be passed through to globus_compute_sdk.Executor
+            as is
+        """
+        super().__init__()
+        self.endpoint_id = endpoint_id
+        self.task_group_id = task_group_id
+        self.resource_specification = resource_specification
+        self.user_endpoint_config = user_endpoint_config
+        self.label = label
+        self.batch_size = batch_size
+        self.amqp_port = amqp_port
+
+        try:
+            from globus_compute_sdk import Executor
+        except ImportError:
+            raise OptionalModuleMissing(
+                ['globus-compute-sdk'],
+                "GlobusComputeExecutor requires globus-compute-sdk installed"
+            )
+        self._executor: Executor = Executor(
+            endpoint_id=endpoint_id,
+            task_group_id=task_group_id,
+            resource_specification=resource_specification,
+            user_endpoint_config=user_endpoint_config,
+            label=label,
+            batch_size=batch_size,
+            amqp_port=amqp_port,
+            **kwargs
+        )
+
+    def start(self) -> None:
+        """Empty function
+        """
+        pass
+
+    def submit(self, func: Callable, resource_specification: Dict[str, Any], *args: Any, **kwargs: Any) -> Future:
+        """ Submit fn to globus-compute
+
+
+        Parameters
+        ----------
+
+        func: Callable
+            Python function to execute remotely
+        resource_specification: Dict[str, Any]
+            Resource specification used to run MPI applications on Endpoints configured
+            to use globus compute's MPIEngine
+        args:
+            Args to pass to the function
+        kwargs:
+            kwargs to pass to the function
+
+        Returns
+        -------
+
+        Future
+        """
+        self._executor.resource_specification = resource_specification or self.resource_specification
+        return self._executor.submit(func, *args, **kwargs)
+
+    def shutdown(self, wait=True, *, cancel_futures=False):
+        """Clean-up the resources associated with the Executor.
+
+        It is safe to call this method several times. Otherwise, no other methods
+        can be called after this one.
+
+        Parameters
+        ----------
+
+        wait: If True, then this method will not return until all pending
+            futures have received results.
+        cancel_futures: If True, then this method will cancel all futures
+            that have not yet registered their tasks with the Compute web services.
+            Tasks cannot be cancelled once they are registered.
+        """
+        return self._executor.shutdown()
+
+

setup.py

@@ -36,6 +36,7 @@
     'proxystore': ['proxystore'],
     'radical-pilot': ['radical.pilot==1.60', 'radical.utils==1.60'],
     'ssh': ['paramiko'],
+    'globus_compute': ['globus_compute_sdk>=2.27.1'],
     # Disabling psi-j since github direct links are not allowed by pypi
     # 'psij': ['psi-j-parsl@git+https://github.com/ExaWorks/psi-j-parsl']
 }