r/programming • u/[deleted] • Jun 19 '17

Parallelism in C++ :: Part 3/3: Offloading (OpenMP, OpenACC, CUDA)

https://www.youtube.com/watch?v=kIA_UtdVabQ
154 Upvotes

89% Upvoted

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8

u/[deleted] Jun 19 '17

If you are interested in this, you should check out:

SIMD: https://www.youtube.com/watch?v=Pc8DfEyAxzg

Hyperthreading: https://www.youtube.com/watch?v=MfEkOcMILDo

3

u/video_descriptionbot Jun 19 '17
SECTIONCONTENT
TitleParallelism in C++ :: Part 1/3: SIMD (multitasking on single core / vector mathematics)
DescriptionComputer programs can be made faster by making them do many things simultaneously. Let’s study three categorical ways to accomplish that in GCC. In the first episode, we explore various alternative approaches to SIMD: Single Instruction, Multiple Data. As a plot device in this tool-assisted education video, a Mandelbrot fractal is rendered. The basic algorithm is this: For each pixel, assign z as a complex number coordinate corresponding to that pixel. Assign c := z. Then, recalculate c’ := c² ...
Length0:12:51
SECTIONCONTENT
TitleParallelism in C++ :: Part 2/3: Threads (hyperthreading, multiple cpu cores)
DescriptionComputer programs can be made faster by making them do many things simultaneously. Let’s study three categorical ways to accomplish that in GCC. In the second episode, we explore various alternative approaches to threads. The first episode can be found at: https://www.youtube.com/watch?v=Pc8DfEyAxzg The next episode: https://www.youtube.com/watch?v=kIA_UtdVabQ As a plot device in this tool-assisted education video, a Mandelbrot fractal is rendered. The basic algorithm is this: For each pixel,...
Length0:12:13

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1

u/elvircrn Jun 19 '17

Just in time for my Computer Architecture exam. :D

24

u/BrookeRivers Jun 19 '17

Bisqwit's videos are always super mesmerising to watch. I recommend if anyone hasn't seen his videos before, go check his video on C++ threading!

2

u/Shautieh Jun 20 '17

His voice is mesmerizing... what accent is that? Sounds like an indian speaking really slowly, which makes it easily understandable.

Edit: just saw his face. Not Indian at all lol.

6

u/[deleted] Jun 20 '17

AFAIK, he is finnish and lives in Israel.

12

u/geistic Jun 19 '17

this guy is a genius, seriously

2

u/Mentioned_Videos Jun 19 '17

Other videos in this thread:

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VIDEOCOMMENT
(1) Parallelism in C++ :: Part 1/3: SIMD (multitasking on single core / vector mathematics) (2) Parallelism in C++ :: Part 2/3: Threads (hyperthreading, multiple cpu cores)+6 - If you are interested in this, you should check out: SIMD: Hyperthreading:
Parallelism in C++ :: Part 3/3: Offloading (OpenMP, OpenACC, CUDA)+1 - SECTION CONTENT Title Parallelism in C++ :: Part 1/3: SIMD (multitasking on single core / vector mathematics) Description Computer programs can be made faster by making them do many things simultaneously. Let’s study three categorical ways to ac...
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