Difference between revisions of "OpenMP in Small Bites/Tasking"
OpenMP in Small Bites/Tasking
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| Line 16: | Line 16: | ||
- Always <code>firstprivate</code>. | - Always <code>firstprivate</code>. | ||
|| Wrong. | || Wrong. | ||
| − | + <code>firstprivate</code> unless shared in the enclosing context. | + | + <code>firstprivate</code> unless <code>shared</code> in the enclosing context. |
|| Correct. | || Correct. | ||
- <code>shared</code> unless <code>firstprivate</code> in the enclosing context. | - <code>shared</code> unless <code>firstprivate</code> in the enclosing context. | ||
Revision as of 18:01, 30 November 2020
| Tutorial | |
|---|---|
| Title: | OpenMP in Small Bites |
| Provider: | HPC.NRW
|
| Contact: | tutorials@hpc.nrw |
| Type: | Multi-part video |
| Topic Area: | Programming Paradigms |
| License: | CC-BY-SA |
| Syllabus
| |
| 1. Overview | |
| 2. Worksharing | |
| 3. Data Scoping | |
| 4. False Sharing | |
| 5. Tasking | |
| 6. Tasking and Data Scoping | |
| 7. Tasking and Synchronization | |
| 8. Loops and Tasks | |
| 9. Tasking Example: Sudoku Solver | |
| 10. Task Scheduling | |
| 11. Non-Uniform Memory Access | |
Video
Quiz
1. What is the default data scoping of a variable in a task scope? Hint: Assume that the variable is declared before the task region, but in the same function.
2. Which tasks are synchronized with by a
taskyield construct?
3. Why can it be benficial for the performance to use cut-off strategies for task-based OpenMP programs?