Programming Parallel Computers

Aalto 2026

Contest

Task Rank Time Instr.
× 109
Cycles
× 109
GHz Threads Lines
of code
Nickname
Pre0 1 0.000345 0.000363 0.00086 2.51 0.99 94 flippette
2 0.000410 0.000267 0.000466 1.14 0.98 97 jlapp
3 0.000414 0.000263 0.000471 1.14 0.99 100 miroaja
10 0.00057 0.00201 0.00130 2.30 0.99 41
CP1 1 1.08 13.7 4.78 4.41 1.00 85 boy
2 2.88 13.7 12.8 4.45 1.00 111 Emil
3 3.34 40.8 14.9 4.46 1.00 47 Eemil
10 5.11 48.3 20.3 3.97 1.00 80
CP2a 1 0.98 12.5 4.38 4.45 1.00 107 cristichitz
2 1.00 12.3 4.39 4.39 1.00 169 boykisser
3 1.02 13.7 4.48 4.39 1.00 119 Eemil
10 1.08 13.7 4.75 4.38 1.00 156
CP2b 1 0.217 20.9 13.9 3.60 17.7 217 RafatAh
2 0.288 12.2 22.1 3.99 19.0 101 AK
3 0.306 23.2 23.4 4.01 18.9 119 Niilo
10 0.404 40.6 32.9 4.08 20.0 106
CP2c 1 0.99 4.74 3.88 3.91 1.00 115 iamustoo
2 1.17 6.34 4.56 3.91 1.00 130 boy
3 1.20 15.2 5.34 4.46 1.00 93 aapeli
10 1.78 14.5 7.89 4.43 1.00 87
CP3a 1 0.98 74.1 65.4 3.33 20.0 484 mbez
2 1.01 89.4 66.5 3.34 19.7 322 MojoLake
3 1.01 82.7 66.4 3.33 19.6 206 Liimatehdas
10 1.44 80.2 95.8 3.34 19.9 273
CP3b 1 0.493 46.2 32.3 3.29 19.9 405 mbez
2 0.51 43.8 33.4 3.29 19.7 350 hachimi
3 0.53 48.1 35.2 3.30 19.9 483 MojoLake
10 0.72 37.6 47.7 3.33 19.8 126
CP4 1 0.078 0.427 0.249 3.20 1.00 151 angryolli
2 0.078 0.53 0.262 3.35 1.00 152 kane
3 0.080 0.51 0.270 3.36 1.00 214 zpxd
10 0.088 0.56 0.299 3.40 1.00 116
CP5 1 0.52 4.42 2.24 4.29 1.00 166 cristichitz
2 0.54 4.33 2.35 4.32 1.00 267 mbez
3 0.56 4.65 2.40 4.32 1.00 160 Oscar
10 0.60 5.22 2.58 4.31 1.00 158
CP9a 1 0.69 50.6 43.4 3.35 18.7 601 mbez
2 1.24 34.0 62.6 3.31 15.3 491 Percy
3 1.29 49.8 76.1 3.45 17.2 478 你怎么这么自私
10 2.91 261 213 3.77 19.4 230
IS2 1 0.0062 0.055 0.0228 3.69 1.00 139 Ale
2 0.0104 0.0330 0.0123 1.19 0.99 161 boy
3 0.0120 0.0426 0.0148 1.23 1.00 121 boykisser
10 0.0165 0.050 0.0197 1.19 1.00 107
IS4 1 0.186 17.3 11.5 3.10 19.7 377 Liimatehdas
2 0.218 19.1 13.6 3.15 19.7 296 jlapp
3 0.219 17.0 13.4 3.16 19.0 272 cristichitz
10 0.428 39.7 30.6 3.63 19.6 278
IS6a 1 0.112 8.05 4.42 3.02 12.9 309 ReleaseDatBoi
2 0.252 20.6 14.3 3.18 17.8 744 Liimatehdas
3 0.267 27.5 17.0 3.19 19.7 270 jlapp
10 0.372 43.6 29.9 4.09 19.5 162
IS6b 1 0.134 1.12 0.51 3.78 1.00 244 rawx
2 0.142 1.23 0.54 3.78 1.00 184 AdamayB
3 0.165 1.43 0.64 3.88 1.00 290 MojoLake
10 0.269 2.64 1.16 4.32 1.00 272
IS9a 1 0.051 1.42 1.23 1.95 11.2 296 aykhan_najafov
2 0.051 1.40 1.13 1.88 10.4 335 liy
3 0.067 2.32 1.86 2.16 12.0 306 xiaoshan
10 0.293 36.4 20.8 4.01 17.7 179
MF1 1 3.25 26.0 14.6 4.48 1.00 67 zpxd
2 5.23 21.5 23.3 4.46 1.00 154 AAI
3 5.99 27.5 26.8 4.47 1.00 190 RedGreenBlue09
10 6.80 17.2 30.4 4.47 1.00 46
MF2 1 0.367 20.9 29.8 4.07 19.8 91 boy
2 0.388 21.3 31.5 4.08 19.8 83 AAI
3 0.483 17.1 39.6 4.12 19.8 39 Isoveli
10 0.487 18.2 39.8 4.10 19.8 45
MF9a 1 0.66 34.5 50.2 4.15 18.4 559 liy
2 0.67 65.0 54.8 4.16 19.7 265 你怎么这么自私
3 0.70 61.8 54.7 4.11 18.9 246 Percy
10 0.91 78.7 74.6 4.19 19.5 261
SO4 1 0.265 14.5 12.9 3.40 14.3 839 jlapp
2 0.308 14.8 20.0 3.85 16.9 274 Xinyang Li
3 0.385 7.92 30.5 4.06 19.5 249 MojoLake
10 0.448 15.5 19.3 3.87 11.1 126
SO5 1 0.359 8.33 15.0 3.39 12.1 215 MT
2 0.442 19.2 20.9 3.91 12.0 195 MojoLake
3 0.471 13.2 19.3 3.48 11.7 342 RedGreenBlue09
10 0.53 21.7 25.1 4.00 11.9 60
SO6 1 0.388 2.49 1.64 4.23 1.00 167 Eemil
2 0.422 2.68 1.80 4.26 1.00 220 liy
3 0.455 3.32 1.94 4.27 1.00 163 aapeli
10 0.53 4.27 2.30 4.30 1.00 303
LLM9a 1 0.415 17.7 27.1 3.63 18.0 156 liy
2 0.67 44.1 45.9 3.68 18.7 204 Happy
3 0.67 21.6 47.3 3.72 18.9 303 Isoveli
10 0.83 42.8 56.5 3.73 18.3 190

✓ = 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
CP3a ≤ 1.20 × fastest = 1.20 × 0.98 s = 1.18 s 1
≤ 1.05 × fastest = 1.05 × 0.98 s = 1.03 s 2
CP3b ≤ 1.20 × fastest = 1.20 × 0.493 s = 0.59 s 1
≤ 1.05 × fastest = 1.05 × 0.493 s = 0.52 s 2
CP5 ≤ 1.20 × fastest = 1.20 × 0.52 s = 0.63 s 1
≤ 1.05 × fastest = 1.05 × 0.52 s = 0.55 s 2
IS4 ≤ 1.20 × fastest = 1.20 × 0.186 s = 0.223 s 1
≤ 1.05 × fastest = 1.05 × 0.186 s = 0.195 s 2
IS6a ≤ 1.20 × fastest = 1.20 × 0.112 s = 0.135 s 1
≤ 1.05 × fastest = 1.05 × 0.112 s = 0.118 s 2
IS6b ≤ 1.20 × fastest = 1.20 × 0.134 s = 0.161 s 1
≤ 1.05 × fastest = 1.05 × 0.134 s = 0.141 s 2
SO4 ≤ 1.20 × fastest = 1.20 × 0.265 s = 0.318 s 1
≤ 1.10 × fastest = 1.10 × 0.265 s = 0.291 s 2
SO5 ≤ 1.20 × fastest = 1.20 × 0.359 s = 0.431 s 1
≤ 1.10 × fastest = 1.10 × 0.359 s = 0.395 s 2
SO6 ≤ 1.20 × fastest = 1.20 × 0.388 s = 0.465 s 1
≤ 1.05 × fastest = 1.05 × 0.388 s = 0.407 s 2
LLM9a ≤ 1.20 × fastest = 1.20 × 0.415 s = 0.498 s 1
≤ 1.05 × fastest = 1.05 × 0.415 s = 0.436 s 2

Here “Current” is our current estimate of the threshold based on the submissions we have received, 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 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.