REFACTOR-#000: Change IsMpiSpawnWorkers to MpiSpawn to make it more concise

docs/flow/unidist/config.rst

@@ -48,7 +48,7 @@ Unidist Configuration Settings List
 +-------------------------------+-------------------------------------------+--------------------------------------------------------------------------+
 | DaskSchedulerAddress          | UNIDIST_DASK_SCHEDULER_ADDRESS            | Dask Scheduler address to connect to when running in Dask cluster        |
 +-------------------------------+-------------------------------------------+--------------------------------------------------------------------------+
-| IsMpiSpawnWorkers             | UNIDIST_IS_MPI_SPAWN_WORKERS              | Whether to enable MPI spawn or not                                       |
+| MpiSpawn                      | UNIDIST_MPI_SPAWN                         | Whether to enable MPI spawn or not                                       |
 +-------------------------------+-------------------------------------------+--------------------------------------------------------------------------+
 | MpiHosts                      | UNIDIST_MPI_HOSTS                         | MPI hosts to run unidist on                                              |
 +-------------------------------+-------------------------------------------+--------------------------------------------------------------------------+

docs/using_unidist/unidist_on_mpi.rst

@@ -72,25 +72,25 @@ SPMD model
 ----------
 
 First of all, to run unidist on MPI in a single node using `SPMD model`_,
-you should set the ``UNIDIST_IS_MPI_SPAWN_WORKERS`` environment variable to ``False``:
+you should set the ``UNIDIST_MPI_SPAWN`` environment variable to ``False``:
 
 .. code-block:: bash
 
-    $ export UNIDIST_IS_MPI_SPAWN_WORKERS=False
+    $ export UNIDIST_MPI_SPAWN=False
 
 .. code-block:: python
 
     import os
 
-    os.environ["UNIDIST_IS_MPI_SPAWN_WORKERS"] = "False"
+    os.environ["UNIDIST_MPI_SPAWN"] = "False"
 
 or set the associated configuration value:
 
 .. code-block:: python
 
-    from unidist.config import IsMpiSpawnWorkers
+    from unidist.config import MpiSpawn
 
-    IsMpiSpawnWorkers.put(False)
+    MpiSpawn.put(False)
 
 This will enable unidist not to spawn MPI processes dynamically because the user himself spawns the processes.
 
@@ -169,25 +169,25 @@ SPMD model
 """"""""""
 
 First of all, to run unidist on MPI in a cluster using `SPMD model`_,
-you should set the ``UNIDIST_IS_MPI_SPAWN_WORKERS`` environment variable to ``False``:
+you should set the ``UNIDIST_MPI_SPAWN`` environment variable to ``False``:
 
 .. code-block:: bash
 
-    $ export UNIDIST_IS_MPI_SPAWN_WORKERS=False
+    $ export UNIDIST_MPI_SPAWN=False
 
 .. code-block:: python
 
     import os
 
-    os.environ["UNIDIST_IS_MPI_SPAWN_WORKERS"] = "False"
+    os.environ["UNIDIST_MPI_SPAWN"] = "False"
 
 or set the associated configuration value:
 
 .. code-block:: python
 
-    from unidist.config import IsMpiSpawnWorkers
+    from unidist.config import MpiSpawn
 
-    IsMpiSpawnWorkers.put(False)
+    MpiSpawn.put(False)
 
 This will enable unidist not to spawn MPI processes dynamically because the user himself spawns the processes.
 

unidist/config/__init__.py

@@ -14,7 +14,7 @@
 )
 from .backends.dask import DaskMemoryLimit, IsDaskCluster, DaskSchedulerAddress
 from .backends.mpi import (
-    IsMpiSpawnWorkers,
+    MpiSpawn,
     MpiHosts,
     MpiPickleThreshold,
     MpiBackoff,
@@ -38,7 +38,7 @@
     "DaskMemoryLimit",
     "IsDaskCluster",
     "DaskSchedulerAddress",
-    "IsMpiSpawnWorkers",
+    "MpiSpawn",
     "MpiHosts",
     "ValueSource",
     "MpiPickleThreshold",

unidist/config/backends/mpi/__init__.py

@@ -5,7 +5,7 @@
 """Config entities specific for MPI backend which can be used for unidist behavior tuning."""
 
 from .envvars import (
-    IsMpiSpawnWorkers,
+    MpiSpawn,
     MpiHosts,
     MpiPickleThreshold,
     MpiBackoff,
@@ -18,7 +18,7 @@
 )
 
 __all__ = [
-    "IsMpiSpawnWorkers",
+    "MpiSpawn",
     "MpiHosts",
     "MpiPickleThreshold",
     "MpiBackoff",

unidist/config/backends/mpi/envvars.py

@@ -7,11 +7,11 @@
 from unidist.config.parameter import EnvironmentVariable, ExactStr
 
 
-class IsMpiSpawnWorkers(EnvironmentVariable, type=bool):
+class MpiSpawn(EnvironmentVariable, type=bool):
     """Whether to enable MPI spawn or not."""
 
     default = True
-    varname = "UNIDIST_IS_MPI_SPAWN_WORKERS"
+    varname = "UNIDIST_MPI_SPAWN"
 
 
 class MpiHosts(EnvironmentVariable, type=ExactStr):

unidist/core/backends/mpi/core/common.py

@@ -8,7 +8,7 @@
 import inspect
 import weakref
 
-from unidist.config.backends.mpi.envvars import IsMpiSpawnWorkers
+from unidist.config.backends.mpi.envvars import MpiSpawn
 from unidist.core.backends.mpi.utils import ImmutableDict
 
 try:
@@ -485,7 +485,7 @@ def is_shared_memory_supported():
     # Mpich shared memory does not work with spawned processes prior to version 4.2.0.
     if (
         "MPICH" in MPI.Get_library_version()
-        and IsMpiSpawnWorkers.get()
+        and MpiSpawn.get()
         and not check_mpich_version("4.2.0")
     ):
         return False

unidist/core/backends/mpi/core/communication.py

@@ -23,7 +23,7 @@
     deserialize_complex_data,
 )
 import unidist.core.backends.mpi.core.common as common
-from unidist.config.backends.mpi.envvars import IsMpiSpawnWorkers, MpiHosts
+from unidist.config.backends.mpi.envvars import MpiSpawn, MpiHosts
 
 # TODO: Find a way to move this after all imports
 mpi4py.rc(recv_mprobe=False, initialize=False)
@@ -132,7 +132,7 @@ def __init__(self, comm):
             self.host_by_rank[global_rank] = host
 
         mpi_hosts = MpiHosts.get()
-        if mpi_hosts is not None and IsMpiSpawnWorkers.get():
+        if mpi_hosts is not None and MpiSpawn.get():
             host_list = mpi_hosts.split(",")
             host_count = len(host_list)
 

unidist/core/backends/mpi/core/controller/api.py

@@ -34,7 +34,7 @@
 from unidist.core.backends.mpi.core.async_operations import AsyncOperations
 from unidist.config import (
     CpuCount,
-    IsMpiSpawnWorkers,
+    MpiSpawn,
     MpiHosts,
     ValueSource,
     MpiPickleThreshold,
@@ -145,16 +145,16 @@ def init():
 
     # Path to dynamically spawn MPI processes.
     # If a requirement is not met, processes have been started with mpiexec -n <N>, where N > 1.
-    if rank == 0 and parent_comm == MPI.COMM_NULL and IsMpiSpawnWorkers.get():
+    if rank == 0 and parent_comm == MPI.COMM_NULL and MpiSpawn.get():
         args = _get_py_flags()
         args += ["-c"]
         py_str = [
             "import unidist",
             "import unidist.config as cfg",
             "cfg.Backend.put('mpi')",
         ]
-        if IsMpiSpawnWorkers.get_value_source() != ValueSource.DEFAULT:
-            py_str += [f"cfg.IsMpiSpawnWorkers.put({IsMpiSpawnWorkers.get()})"]
+        if MpiSpawn.get_value_source() != ValueSource.DEFAULT:
+            py_str += [f"cfg.MpiSpawn.put({MpiSpawn.get()})"]
         if MpiHosts.get_value_source() != ValueSource.DEFAULT:
             py_str += [f"cfg.MpiHosts.put('{MpiHosts.get()}')"]
         if CpuCount.get_value_source() != ValueSource.DEFAULT:
@@ -272,7 +272,7 @@ def init():
         # If the user executes a program in SPMD mode,
         # we do not want workers to continue the flow after `unidist.init()`
         # so just killing them.
-        if not IsMpiSpawnWorkers.get():
+        if not MpiSpawn.get():
             sys.exit()
         return
     else:
@@ -282,7 +282,7 @@ def init():
         # If the user executes a program in SPMD mode,
         # we do not want workers to continue the flow after `unidist.init()`
         # so just killing them.
-        if not IsMpiSpawnWorkers.get():
+        if not MpiSpawn.get():
             sys.exit()
         return