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Turning on single-threaded handling in dask #457

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merged 2 commits into from
Jun 27, 2024
Merged

Turning on single-threaded handling in dask #457

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Turning on single-threaded handling in dask
davidorme Jun 27, 2024
5ff2268
Merge branch 'develop' into 354-xarrayopen_mfdataset-can-cause-proble…
davidorme Jun 27, 2024
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11 changes: 11 additions & 0 deletions virtual_ecosystem/core/data.py
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Original file line number Diff line number Diff line change
Expand Up @@ -123,6 +123,7 @@
from pathlib import Path
from typing import Any

import dask
import numpy as np
from xarray import DataArray, Dataset, open_mfdataset

Expand All @@ -133,6 +134,16 @@
from virtual_ecosystem.core.readers import load_to_dataarray
from virtual_ecosystem.core.utils import check_outfile

# There are ongoing xarray issues with NetCDF not being thread safe and this causes
# segfaults on different architectures in testing using `xarray.open_mfdataset`
# See:
# - https://github.com/pydata/xarray/issues/7079
# - https://github.com/pydata/xarray/issues/3961
#
# Following advice on both those issues, we currently explicitly stop dask from trying
# to use parallel file processing and use open_mfdataset(..., lock=False)
dask.config.set(scheduler="single-threaded")


class Data:
"""The Virtual Ecosystem data object.
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