AMReX-Astro / AMReX-Astro/Castro

consider computing geometry on demand via inlined functions

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Dominant language
C++
Stars
340
Forks
105
Avg merge
3d 8h
Merged PRs (30d)
8

Description

Right now we carry around 3 area MFs + 1 volume MF. These are not used very widely, and it seems that with the C++ conversion, we could create an inlined function area() and volume() to compute these as needed and apply them immediately. This will free up 4 Real's per zone of memory in MFs.

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Research direction

Start by locating the three area MFs and one volume MF per zone in the C++ code, then inspect how widely they are used. The work is done when equivalent area and volume values are computed on demand, existing behavior is preserved, and the four Real values per zone are no longer stored.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
hpc
Issue type
Refactor
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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