Programming Parallel Computers

Aalto 2023 spring

Contest

Task Rank Time Instr.
× 109
Cycles
× 109
GHz Threads Lines
of code
Nickname
Pre0 1 0.000465 0.00226 0.00136 2.96 0.99 41 stashes1
2 0.000478 0.00226 0.00135 2.86 0.99 41 ba
3 0.000500 0.00226 0.00132 2.66 0.99 30 julius_os
10 0.00062 0.00226 0.00121 1.97 0.99 32
CP1 1 4.80 12.3 18.9 3.95 1.00 54 nweeks
2 6.90 24.2 30.9 4.48 1.00 46 Aneesh Mulye
3 7.02 48.3 31.5 4.48 1.00 27 Waido
10 7.35 24.2 32.7 4.46 1.00 54
CP2a 1 2.16 24.2 9.65 4.48 1.00 88 Waido
2 2.48 20.8 9.86 3.97 1.00 181 Merlin
3 2.78 29.4 12.4 4.48 1.00 39 rv
10 4.02 21.3 17.9 4.45 1.00 72
CP2b 1 0.396 48.3 32.6 4.14 19.9 34 Waido
2 0.397 48.3 32.4 4.10 19.9 32 rv
3 0.423 10.4 17.3 3.71 11.0 51 shweta
10 0.493 24.5 35.5 3.67 19.7 53
CP2c 1 2.37 6.30 9.41 3.97 1.00 87 Aneesh Mulye
2 2.73 12.3 12.2 4.47 1.00 64 Waido
3 2.80 12.2 12.5 4.46 1.00 73 wang
10 3.50 18.2 15.6 4.47 1.00 60
CP3a 1 2.93 346 185 3.59 17.5 207 Mahtimursu
2 3.03 85.0 202 3.35 19.9 270 Aneesh Mulye
3 3.77 275 277 3.75 19.6 86 rv
10 12.2 461 919 3.77 19.9 70
CP3b 1 1.14 104 83.4 3.70 19.9 92 rv
2 1.28 117 80.4 3.67 17.2 203 pipo
3 1.32 43.7 87.5 3.34 19.9 170 Aneesh Mulye
10 5.67 193 208 3.73 9.85 83
CP4 1 0.096 0.91 0.412 4.30 1.00 58 rv
2 0.109 0.88 0.466 4.26 1.00 87 Merlin
3 0.113 0.90 0.477 4.22 1.00 101 wang
CP5 1 0.364 3.46 1.60 4.40 1.00 178 shweta
2 0.381 2.83 1.60 4.21 1.00 139 Merlin
3 0.392 3.81 1.74 4.43 1.00 207 pipo
CP9a 1 1.54 116 106 3.73 18.4 88 Merlin
2 5.08 270 372 3.71 19.7 528 Waido
IS4 1 1.54 129 116 3.79 20.0 113 uj
2 1.62 129 123 3.79 19.9 115 shweta
3 1.77 136 122 3.78 18.2 140 wang
IS6a 1 0.471 50.3 34.6 3.68 19.9 143 shweta
2 0.474 50.3 34.8 3.69 19.9 210 wang
3 2.36 310 177 3.77 19.9 207 Merlin
IS6b 1 0.266 2.95 1.19 4.46 1.00 172 wang
2 0.271 2.88 1.20 4.41 1.00 134 shweta
MF1 1 7.02 19.6 31.3 4.47 1.00 67 pokey
2 7.29 18.2 32.6 4.47 1.00 47 ba
3 7.37 18.0 33.0 4.48 1.00 46 Aneesh Mulye
10 8.12 30.0 36.4 4.48 1.00 49
MF2 1 0.499 18.6 42.4 4.26 20.0 28 rv
2 0.50 18.8 42.3 4.24 19.9 43 bhaskarthakur
3 0.50 18.0 42.5 4.24 19.9 48 Aneesh Mulye
10 0.64 37.6 54.8 4.27 19.9 42
SO4 1 0.64 17.8 21.7 3.68 9.24 128 pipo
2 0.94 19.6 20.3 3.53 6.13 43 shweta
3 0.99 17.1 19.1 3.70 5.21 177 Waido
SO5 1 0.52 22.6 25.3 3.98 12.1 64 wang
2 0.82 36.7 31.0 3.77 10.0 57 Merlin
3 0.92 25.6 41.6 3.99 11.3 108 Waido
SO6 1 1.92 15.5 7.72 4.03 1.00 125 pipo

✓ = 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 × 2.93 s = 3.52 s 1
≤ 1.05 × fastest = 1.05 × 2.93 s = 3.08 s 2
CP3b ≤ 1.20 × fastest = 1.20 × 1.14 s = 1.36 s 1
≤ 1.05 × fastest = 1.05 × 1.14 s = 1.19 s 2
CP5 ≤ 1.20 × fastest = 1.20 × 0.364 s = 0.437 s 1
≤ 1.05 × fastest = 1.05 × 0.364 s = 0.382 s 2
IS4 ≤ 1.20 × fastest = 1.20 × 1.54 s = 1.85 s 1
≤ 1.05 × fastest = 1.05 × 1.54 s = 1.62 s 2
IS6a ≤ 1.20 × fastest = 1.20 × 0.471 s = 0.56 s 1
≤ 1.05 × fastest = 1.05 × 0.471 s = 0.494 s 2
IS6b ≤ 1.20 × fastest = 1.20 × 0.266 s = 0.320 s 1
≤ 1.05 × fastest = 1.05 × 0.266 s = 0.280 s 2
SO4 ≤ 1.20 × fastest = 1.20 × 0.64 s = 0.76 s 1
≤ 1.10 × fastest = 1.10 × 0.64 s = 0.70 s 2
SO5 ≤ 1.20 × fastest = 1.20 × 0.52 s = 0.63 s 1
≤ 1.10 × fastest = 1.10 × 0.52 s = 0.58 s 2
SO6 ≤ 1.20 × fastest = 1.20 × 1.92 s = 2.30 s 1
≤ 1.05 × fastest = 1.05 × 1.92 s = 2.01 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 and no point deduction by the course staff.