Question

Why Amdahl Law on serial and parallel fractions does not provide a theoretical speedup of 4 on quad-core CPU?

score 807 · Answer 1 · 2025-01-04 08:19:09

807

Views

Why Amdahl Law on serial and parallel fractions does not provide a theoretical speedup of 4 on quad-core CPU?

Published on 04 January 2025 at 08:19

score 8.9k · Answer 2 · 2025-01-04 08:17:45

8.9k

Views

Working through an example of Amdahl's Law with respect to percentage speedup

Published on 04 January 2025 at 08:17

score 169 · Answer 3 · 2025-01-04 08:15:51

169

Views

Why is a Compare-And-Swap operation limited by Amdahl's law?

Published on 04 January 2025 at 08:15

score 54 · Answer 4 · 2025-01-04 08:18:02

54

Views

Is it legal to use Amdahl's law in the inverse way? How many threads should I use?

Published on 04 January 2025 at 08:18

score 1k · Answer 5 · 2025-01-04 08:12:59

1k

Views

How to parallelize a class method in python?

Published on 04 January 2025 at 08:12

score 1.2k · Answer 6 · 2025-01-04 08:11:19

1.2k

Views

Negative speed up in Amdahl's law?

Published on 04 January 2025 at 08:11

score 213 · Answer 7 · 2025-01-04 08:11:04

213

Views

Evaluating methods in parallel

Published on 04 January 2025 at 08:11

score 816 · Answer 8 · 2025-01-04 08:19:08

816

Views

What is the performance of 100 processors capable of 2 GFLOPs running 2% sequential and 98% parallelizable code?

Published on 04 January 2025 at 08:19

score 56 · Answer 9 · 2025-01-04 08:12:58

56

Views

CPU utilization calculation in Amdahl's law

Published on 04 January 2025 at 08:12

score 111 · Answer 10 · 2025-01-04 08:14:29

111

Views

Is it beneficial to parallelize variable declaration?

Published on 04 January 2025 at 08:14

score 1.2k · Answer 11 · 2025-01-04 08:16:49

1.2k

Views

Why my code runs so much slower with joblib.Parallel() than without?

Published on 04 January 2025 at 08:16

score 711 · Answer 12 · 2025-01-04 08:16:48

711

Views

Very slow example parallel code in python, slower then serial

Published on 04 January 2025 at 08:16

score 116 · Answer 13 · 2025-01-04 08:17:44

116

Views

Does python's Pool() for parallelization prevent writing to global variables?

Published on 04 January 2025 at 08:17

score 2.9k · Answer 14 · 2025-01-04 08:18:01

2.9k

Views

Why python multiprocessing takes more time than serial code? How to speedup this?

Published on 04 January 2025 at 08:18

score 366 · Answer 15 · 2025-01-04 08:11:08

366

Views

RegCM, MPICH, Computer Clustering

Published on 04 January 2025 at 08:11

score 2.1k · Answer 16 · 2025-01-04 08:17:37

2.1k

Views

Why does the get() operation in multiprocessing.Pool.map_async take so long?

Published on 04 January 2025 at 08:17

score 144 · Answer 17 · 2025-01-04 08:16:46

144

Views

Will we see an expected speedup in Chapel if running "inside" VMs?

Published on 04 January 2025 at 08:16

score 271 · Answer 18 · 2025-01-04 08:12:36

271

Views

improving bigint write to disk performance

Published on 04 January 2025 at 08:12

score 191 · Answer 19 · 2025-01-04 08:19:08

191

Views

How non-trivial should a computation be to make it reasonable to get it sparked for a parallel execution in Haskell?

Published on 04 January 2025 at 08:19

score 1.2k · Answer 20 · 2025-01-04 08:11:59

1.2k

Views

cv::parallel_for_ not very big improvement

Published on 04 January 2025 at 08:11

List Question

Why Amdahl Law on serial and parallel fractions does not provide a theoretical speedup of 4 on quad-core CPU?

Working through an example of Amdahl's Law with respect to percentage speedup

Why is a Compare-And-Swap operation limited by Amdahl's law?

Is it legal to use Amdahl's law in the inverse way? How many threads should I use?

How to parallelize a class method in python?

Negative speed up in Amdahl's law?

Evaluating methods in parallel

What is the performance of 100 processors capable of 2 GFLOPs running 2% sequential and 98% parallelizable code?

CPU utilization calculation in Amdahl's law

Is it beneficial to parallelize variable declaration?

Why my code runs so much slower with joblib.Parallel() than without?

Very slow example parallel code in python, slower then serial

Does python's Pool() for parallelization prevent writing to global variables?

Why python multiprocessing takes more time than serial code? How to speedup this?

RegCM, MPICH, Computer Clustering

Why does the get() operation in multiprocessing.Pool.map_async take so long?

Will we see an expected speedup in Chapel if running "inside" VMs?

improving bigint write to disk performance

How non-trivial should a computation be to make it reasonable to get it sparked for a parallel execution in Haskell?

cv::parallel_for_ not very big improvement

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