Programming Parallel Computers

HY 2024–2025

Contest

Task Rank Time Instr.
× 109
Cycles
× 109
GHz Threads Lines
of code
Nickname
Pre0 1 0.000418 0.00116 0.000489 1.17 0.99 72 neoh
2 0.00066 0.00226 0.00130 1.98 0.99 37 minerva
3 0.00073 0.00226 0.00144 1.98 0.99 33 Teusa
10 0.00095 0.00201 0.00113 1.19 0.99 33
CP1 1 3.60 26.4 16.1 4.47 1.00 68 neoh
2 4.47 28.3 19.9 4.46 1.00 102 PurPul
3 7.16 64.4 32.0 4.47 1.00 43 binhpht
10 7.21 64.6 32.2 4.47 1.00 66
CP2a 1 1.50 17.1 6.70 4.46 1.00 194 neoh
2 2.78 10.3 12.4 4.45 1.00 75 HelloWorld
3 2.87 44.5 12.8 4.47 1.00 72 meicceli
10 3.67 26.4 16.4 4.48 1.00 109
CP2b 1 0.224 16.8 15.3 3.82 17.8 197 neoh
2 0.359 26.6 29.2 4.07 19.8 93 koppelo
3 0.439 40.3 36.0 4.11 19.8 75 vuolen
10 0.475 40.6 36.6 4.06 18.9 61
CP2c 1 0.61 2.08 2.35 3.85 1.00 191 neoh
2 2.67 8.40 10.6 3.98 1.00 78 julius_os
3 2.79 16.4 12.5 4.48 1.00 87 ><
10 3.15 16.4 14.0 4.46 1.00 89
CP3a 1 3.64 250 257 3.77 18.7 97 atlas
2 5.19 436 378 3.78 19.3 142 tamtam
3 5.30 252 363 3.78 18.1 169 PurPul
10 12.9 1474 936 3.77 19.2 145
CP3b 1 1.58 112 97.1 3.75 16.4 166 PurPul
2 2.15 180 152 3.74 18.9 166 tamtam
3 2.77 157 116 3.73 11.2 429 koppelo
CP4 1 0.131 1.01 0.50 3.82 1.00 200 Chewbacca
2 0.138 1.16 0.54 3.90 1.00 104 Teusa
3 0.201 1.84 0.80 3.99 1.00 71 lev
CP5 1 1.42 11.0 6.17 4.35 1.00 200 PurPul
2 1.73 17.5 7.66 4.42 1.00 156 lev
3 3.32 29.3 14.6 4.39 1.00 156 Chewbacca
IS2 1 0.0363 0.131 0.078 2.16 1.00 77 yep
2 0.0388 0.207 0.060 1.56 1.00 172 PurPul
3 0.0432 0.323 0.100 2.31 1.00 189 ronit
IS4 1 1.88 155 141 3.75 20.0 178 lev
2 5.85 682 446 3.82 20.0 174 Chewbacca
3 5.96 759 469 3.95 19.9 174 PurPul
MF1 1 7.38 21.8 33.0 4.47 1.00 68 PurPul
2 7.39 19.5 33.1 4.48 1.00 30 gescheredlich
3 7.40 26.0 33.1 4.48 1.00 56 atlas
MF2 1 0.51 22.1 42.2 4.13 19.9 31 gescheredlich
2 0.52 21.5 42.6 4.15 19.8 68 ronit
3 0.54 26.6 44.4 4.12 19.9 40 lev
SO4 1 0.82 18.7 17.5 3.44 6.23 60 julius_os
2 0.96 20.5 18.4 3.75 5.12 70 lev
3 1.18 19.7 23.8 3.35 6.05 79 Chewbacca
SO5 1 0.72 30.1 31.9 3.96 11.2 58 lev
2 0.92 19.9 20.7 3.79 5.91 72 julius_os
3 2.37 32.0 22.6 3.96 2.41 57 Chewbacca
LLM9a 1 7.72 444 627 4.10 19.8 140 Chewbacca
2 8.12 241 554 3.44 19.8 291 pkoivisto

✓ = already graded

Contest points

All correct submissions to the following tasks take part in the contest and you can earn extra points! When the course closes, we will compare your solution with the fastest correct solution that we received this year. If your running time is close to the fastest running time, you will get extra points as follows:

Task Running time Current Points
LLM9a ≤ 1.20 × fastest = 1.20 × 7.72 s = 9.26 s 1
≤ 1.05 × fastest = 1.05 × 7.72 s = 8.11 s 2

Here “Current” is our current estimate of the threshold based on the submissions we have got, but please note that it will change over time as we receive and grade new solutions!

Contest rules

You do not need to do anything special to benefit from the contest points; they will be calculated automatically when the course closes.

Late submissions and resubmissions are fine! You can improve your solutions still during the last week of the course, and they are eligible for the extra points from the contest!

Only fully correct solutions count in the contest: you must have a successful submission.