Challenges
Every challenge is attached to a kernel, and the leaderboard is the outcome.
1 OPEN$5K IN OPEN BOUNTIES0 SUBMISSIONS14 SETTLED, $47,500 PAID0 CLOSING THIS WEEK
FEATUREDOPTIMIZATIONKERNEL · polynomial-multiplication
Build the Fastest GPU-Accelerated Polynomial Multiplication with NVIDIA cuPQC
Build a high-performance GPU implementation of negacyclic polynomial multiplication using NVIDIA cuPQC as the arithmetic foundation.
BOUNTY$5,000
CLOSES IN89 d
SUBMISSIONS0
HOW IT'S JUDGEDSee the leaderboard →
MEASURED ATN = 65,536, W = 1,792
RANKED BYmedian run time · lowest wins
TO QUALIFYcorrect against the reference bundle
15 SHOWN · SORTED BY CLOSING DATE
OPTIMIZATIONSETTLED · SEPT 2026
Encrypted Modulo Operation (MOD)
KERNELmoduloL4
WON BYDOMINANT
tekkac971 ms
@tekkac · 44.39× ahead of #2OPENFHE
Results →2 entries
OPTIMIZATIONSETTLED · JAN 2026
Singular Value Decomposition (SVD)
KERNELsvdL4
WON BY
hanik2.04 s
@hanik · 1.77× ahead of #2OPENFHE
Results →3 entries
OPTIMIZATIONSETTLED · NOV 2025
Softmax Function
KERNELsoftmaxL4
WON BYDOMINANT
kriska314 ms
@kriska · 2.93× ahead of #2OPENFHE
Results →$2,000paid · 7 entries
OPTIMIZATIONSETTLED · AUG 2025
GELU Function
KERNELgeluL4
WON BY
hita2131 ms
@hita2 · 1.59× ahead of #2OPENFHE
Results →$2,000paid · 6 entries
OPTIMIZATIONSETTLED · JUL 2025
Sentiment Analysis
KERNELsentimentL5
WON BYDOMINANT
kriska166 ms
@kriska · 2.25× ahead of #2OPENFHE
Results →$3,000paid · 4 entries
OPTIMIZATIONSETTLED · APR 2025
k-Nearest Neighbors Search
KERNELknnL4
WON BY
hita216.7 s
@hita2 · 1.17× ahead of #2OPENFHE
Results →$4,000paid · 2 entries
OPTIMIZATIONSETTLED · MAR 2025
Invertible Matrix
KERNELmatrix-inverseL4
WON BYSOLE ENTRY
hita231.7 min
@hita2 · only finisherOPENFHE
Results →$3,000paid · 1 entries
OPTIMIZATIONSETTLED · OCT 2024
Array Sorting
KERNELsortL4
WON BY
hita222.1 s
@hita2 · 1.70× ahead of #2OPENFHE
Results →$5,000paid · 6 entries
OPTIMIZATIONSETTLED · AUG 2024
Shift Left (SHL)
KERNELshlL4
WON BY
hita210.2 s
@hita2 · 1.17× ahead of #2OPENFHE
Results →$2,500paid · 3 entries
OPTIMIZATIONSETTLED · AUG 2024
Max Element
KERNELmax-elementL4
WON BY
hita230.9 s
@hita2 · 1.47× ahead of #2OPENFHE
Results →$3,000paid · 2 entries
OPTIMIZATIONSETTLED · AUG 2024
Lookup Table
KERNELlookupL4
WON BY
hectoplzm2.34 s
@hectoplzm · 1.29× ahead of #2OPENFHE
Results →$5,000paid · 5 entries
OPTIMIZATIONSETTLED · JUN 2024
CIFAR-10 Image Classification
KERNELimage-classificationL5
WON BY
hita2231 ms
@hita2 · 1.14× ahead of #2LATTIGOOPENFHE
Results →$10,000paid · 5 entries
OPTIMIZATIONSETTLED · JUN 2024
Parity Challenge
KERNELparityL4
WON BY
Jean-Philippe Bossuat1.51 s
@pro7ech · 1.19× ahead of #2OPENFHELATTIGO
Results →$5,000paid · 14 entries
OPTIMIZATIONSETTLED · JAN 2024
Matrix Multiplication
KERNELmatrix-multiplicationL4
WON BYPHOTO FINISH
Aikata2.03 s
@aikata · 1.04× ahead of #2OPENFHE
Results →$3,000paid · 9 entries