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Although Metview's own internals do not use threading, Metview relies on several libraries for some of its work. Magics is used for plotting, and employs multiple threads when plotting contours. When regridding GRIB data through the Mars Retrieval or the GRIB Filter icon, Metview uses Emoslib; although this package is not multi-threaded, Metview will in the future use the new interpolation package, which will use multiple threads.
Temporary files
To avoid the use of temporary files in large Macro computations, see Vectors.