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Surface optimization from EDTSurf #971

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Now the cube calculation step is 100 - 200x faster (QElapsedTimer).

Basically, this involves iterating over atoms rather than cubes, then for each atom visiting all cubes taken up by it, and only those.

Before:
image

After:
image

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Now the cube calculation step is 100 - 200x faster (QElapsedTimer)

Signed-off-by: Aritz Erkiaga <aerkiaga3@gmail.com>
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Here are the build results
macOS-arm64.dmg
Artifacts will only be retained for 90 days.

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Here are the build results
Avogadro2.AppImage
macOS.dmg
Ubuntu-2004.tar.gz
Win64.exe
Artifacts will only be retained for 90 days.

Signed-off-by: Aritz Erkiaga <aerkiaga3@gmail.com>
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Here are the build results
macOS-arm64.dmg
Artifacts will only be retained for 90 days.

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Here are the build results
Avogadro2.AppImage
macOS.dmg
Ubuntu-2004.tar.gz
Win64.exe
Artifacts will only be retained for 90 days.

@ghutchis ghutchis added the speed Fixes related to performance - not including API / ABI changes label Jun 23, 2022
@ghutchis ghutchis changed the title Port big optimization from EDTSurf Surface optimization from EDTSurf Jun 23, 2022
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It seems like this is part of #972 -- I'm just going to review there.

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That's right, I should probably close this?

@ghutchis ghutchis closed this Jun 24, 2022
@aerkiaga aerkiaga deleted the edt-optimization branch June 24, 2022 14:38
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