Consider replacing ternary expressions with multiplicative conditionals
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good first issue
Performance
- Dominant language
- C++
- Stars
- 39
- Forks
- 22
- Avg merge
- 10h 22m
- Merged PRs (30d)
- 3
Description
Per @Yurlungur we may want to replace
x = cond ? a : b
with
x = (cond) * a + (1 - cond) * b
to reduce branching and improve GPU performance.
This might be premature optimization, but it also might be a good way to specify default handling of NaNs as well.
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Research direction
The issue names no files or tests; start by locating the C++ ternary expressions targeted for replacement and reviewing their GPU performance impact. Establish benchmarks for branching versus multiplicative conditionals, including NaN behavior, and define completion only after the scope and measured benefit are agreed.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- performance
- Issue type
- Refactor
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100