fa26-cs759 cs759
Lecture 09: OpenMP Basics Lecture 09: OpenMP Basics
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Announcements and recap
Code of the day: opposite lock orders
What OpenMP provides
The slides’ compiler-support snapshot
Fork–join execution
Hello world
Parallelizing independent loop iterations
Contrast with explicit partitioning
Other versions of the same sine-table loop
Directives and structured blocks
Runtime controls and queries
Environment variables in the deck
Timing
Nested parallelism and flattening
single versus master
Why speedup stops scaling