mirror of https://github.com/Qiskit/qiskit.git
18 lines
1011 B
YAML
18 lines
1011 B
YAML
---
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features_misc:
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:mod:`qiskit.utils` now contains utilities to provide better control and inspection of Qiskit's
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:mod:`multiprocessing` parallelization settings. In particular, one can now use
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:func:`.should_run_in_parallel` to query whether :func:`.parallel_map` (and pass managers) will
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launch subprocesses for suitable inputs, and use the context manager
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:func:`.should_run_in_parallel.override` to temporarily override most system and user
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configuration around this decision.
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An additional function, :func:`.default_num_processes` reads the default maximum number of
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subprocesses that Qiskit will use for process-based parallelism.
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A new environment variable, ``QISKIT_IGNORE_USER_SETTINGS``, now controls whether to read the
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user settings file on ``import qiskit``. If set to the string ``true``, the settings file
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will not be read. This is useful for isolating certain instances of Qiskit from the system
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environment, such as for testing.
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