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Apply Dask to parallelise acs_regional_stats

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
35/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Stale
Tech stack
jupyter-notebook
Domain
data, performance

Research direction

Start with example_notebooks/FAQ_example_timeseries_stats.ipynb and the acs_regional_stats entry point, then run the current multi-year daily calculation to establish its memory use and runtime. Develop the requested Dask-based example that calculates area averages per file, and verify that it produces regional time series while reducing the current several-minute, memory-intensive workload.

Written by the indexing model from the issue text.

Description

acs_regional_stats can be very memory intensive to run, particularly over many regions and many timesteps.
We should develop an example of running acs_regional_stats for many years of daily data to produce area averaged timeseries for regions. Currently, this is possible, but will take several minutes to calculate.
Dask is likely to be able to achieve this by calculating area averages per file.
Previous development has focused on reducing memory usage through other clever means, such as implementing chunks to reduce the number of timesteps loaded into the memory to calculate stats over each time. This could be parallelised, but it is not currently.

Dominant language
Jupyter Notebook
Stars
8
Forks
1
PR merge metrics
No merged PRs in 30d

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