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chess_movegen_gpu's Introduction

Chess Movegen GPU

State of the art comparison of chess sliding piece algorithms on the GPU It seems that for gpu having no memory lookup at all yields a performance of around 60 Billion lookups/second. This is very impressive since using 32 threads on an 5950X yields a performance of around 13 Billion Queens/second.

Currently compares CUDA performance for these algorithms:

NVIDIA GeForce RTX 3080

Name Performance [MQueens/s]
Black Magic - Fixed shift 6958.00
QBB Algo 58959.55
Bob Lookup 1635.08
Kogge Stone 39972.16
Hyperbola Quiescence 16260.91
Switch Lookup 4425.89
Slide Arithm 18508.00
Pext Lookup 16821.82
SISSY Lookup 8050.17
Hypercube Alg 1304.38
Dumb 7 Fill 21842.60
Obstruction Difference 59202.99
Leorik 55653.71
SBAMG o^(o-3cbn) 59564.33
NO HEADACHE 27982.63
AVX Branchless Shift 28124.91
Slide Arithmetic Inline 61837.82

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