The Audacity of Chapel: Scalable Parallel Programming Done Right

on YouTube ↗54m

" summary

Chapel is a general-purpose parallel language that maps a single program across serial, multi-core and distributed runs by swapping domain maps; it exposes first-class for all and coforall constructs, 14-person team development, and compiles to C/C++ toolchains and MPI backends. Benchmarks put Chapel near C/C++ for speed on several problems and show it out-scaling MPI on a random-access test. It’s open-source, ships two releases per year, and registers about 3,000 downloads annually.

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" chapters (29)

1. 0:00Intro
2. 0:35Fair Warning Statement
3. 4:03Cray Market Segments
4. 4:24I don't really care about HPC programming... CRAY
5. 7:26What does Productivity mean to you?
6. 9:31"The Audacity of Chapel"?
7. 12:56Scalable Parallel Programming Concerns
8. 16:07STREAM Triad: Chapel
9. 18:53HPC's Status Quo: SPMD Programming
10. 20:42SPMD by Example (in code)
11. 25:54Chapel's Goal
12. 26:11The Challenge
13. 27:14Chapel is Portable
14. 28:07Chapel is Open-Source
15. 29:33Chapel Community R&D Efforts
16. 30:22Chapel language feature areas
17. 30:54Base Language Features, by example
18. 33:40Task Parallelism and Locality, by example
19. 35:34Parallelism and Locality: Distinct in Chapel
20. 36:15Higher-Level Features
21. 37:35Distributed Data Parallelism, by example
22. 38:13Domain Maps
23. 38:39Chapel's Domain Map Philosophy
24. 39:43Chapel's Multiresolution Philosophy
25. 40:04Two Other Multiresolution Features
26. 41:54Computer Language Benchmarks Game CG CRAY
27. 43:49CLBG: Chapel vs. 9 key languages
28. 44:55RA Performance: Chapel vs. MPI
29. 47:18Suggested Reading (short attention spans)

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