Coverage for python/lsst/ctrl/mpexec/quantumGraphExecutor.py: 68%
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« prev ^ index » next coverage.py v6.5.0, created at 2023-02-11 02:50 -0800
1# This file is part of ctrl_mpexec.
2#
3# Developed for the LSST Data Management System.
4# This product includes software developed by the LSST Project
5# (http://www.lsst.org).
6# See the COPYRIGHT file at the top-level directory of this distribution
7# for details of code ownership.
8#
9# This program is free software: you can redistribute it and/or modify
10# it under the terms of the GNU General Public License as published by
11# the Free Software Foundation, either version 3 of the License, or
12# (at your option) any later version.
13#
14# This program is distributed in the hope that it will be useful,
15# but WITHOUT ANY WARRANTY; without even the implied warranty of
16# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17# GNU General Public License for more details.
18#
19# You should have received a copy of the GNU General Public License
20# along with this program. If not, see <http://www.gnu.org/licenses/>.
22from __future__ import annotations
24__all__ = ["QuantumExecutor", "QuantumGraphExecutor"]
26from abc import ABC, abstractmethod
27from typing import TYPE_CHECKING, Optional
29from .reports import QuantumReport, Report
31if TYPE_CHECKING: 31 ↛ 32line 31 didn't jump to line 32, because the condition on line 31 was never true
32 from lsst.daf.butler import Quantum
33 from lsst.pipe.base import QuantumGraph, TaskDef
36class QuantumExecutor(ABC):
37 """Class which abstracts execution of a single Quantum.
39 In general implementation should not depend on execution model and
40 execution should always happen in-process. Main reason for existence
41 of this class is to provide do-nothing implementation that can be used
42 in the unit tests.
43 """
45 @abstractmethod
46 def execute(self, taskDef: TaskDef, quantum: Quantum) -> Quantum:
47 """Execute single quantum.
49 Parameters
50 ----------
51 taskDef : `~lsst.pipe.base.TaskDef`
52 Task definition structure.
53 quantum : `~lsst.daf.butler.Quantum`
54 Quantum for this execution.
56 Returns
57 -------
58 quantum : `Quantum`
59 The quantum actually executed. At present this quantum will
60 contain only unresolved `DatasetRef` instances for output datasets,
61 reflecting the state of the quantum just before it was run (but
62 after any adjustments for predicted but now missing inputs). This
63 may change in the future to include resolved output `DatasetRef`
64 objects.
66 Notes
67 -----
68 Any exception raised by the task or code that wraps task execution is
69 propagated to the caller of this method.
70 """
71 raise NotImplementedError()
73 def getReport(self) -> Optional[QuantumReport]:
74 """Return execution report from last call to `execute`.
76 Returns
77 -------
78 report : `~lsst.ctrl.mpexec.QuantumReport`
79 Structure describing the status of the execution of a quantum.
80 `None` is returned if implementation does not support this
81 feature.
83 Raises
84 ------
85 RuntimeError
86 Raised if this method is called before `execute`.
87 """
88 return None
91class QuantumGraphExecutor(ABC):
92 """Class which abstracts QuantumGraph execution.
94 Any specific execution model is implemented in sub-class by overriding
95 the `execute` method.
96 """
98 @abstractmethod
99 def execute(self, graph: QuantumGraph) -> None:
100 """Execute whole graph.
102 Implementation of this method depends on particular execution model
103 and it has to be provided by a subclass. Execution model determines
104 what happens here; it can be either actual running of the task or,
105 for example, generation of the scripts for delayed batch execution.
107 Parameters
108 ----------
109 graph : `~lsst.pipe.base.QuantumGraph`
110 Execution graph.
111 """
112 raise NotImplementedError()
114 def getReport(self) -> Optional[Report]:
115 """Return execution report from last call to `execute`.
117 Returns
118 -------
119 report : `~lsst.ctrl.mpexec.Report`, optional
120 Structure describing the status of the execution of a quantum
121 graph. `None` is returned if implementation does not support
122 this feature.
124 Raises
125 ------
126 RuntimeError
127 Raised if this method is called before `execute`.
128 """
129 return None