From 241156da6f35cb888253e6b8814e7b61a76b4fc7 Mon Sep 17 00:00:00 2001 From: tslil Date: Sun, 30 Aug 2026 19:46:07 +0100 Subject: TD(lambda), and a big rework NOTE: 6x6 weights are as-yet untrained On the performance side: * switch from linked-list chaining hash table to direct mapping * cache check_win by hash * persist transposition tables across plies (this was a big deal and difficult to puzzle out) * add align directives to the network floats * prepare_nn_input gained a small LUT to avoid branching (i suppose you might call this 1D embedding) * apply mtune=native for the native builds On the correctness side: * Zobrist has now includes the ply parity * the network now predicts something in [-1, 1] using tanh (approximated by polynomials) * the training object is now MSE because we're learning a value estimate * use .clangd instead of compile_commands.json On the training side: * completely forgo human-derived data set * implement td(lambda), self-play, tournaments --- include/weights_6.h | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-) (limited to 'include/weights_6.h') diff --git a/include/weights_6.h b/include/weights_6.h index 8da555d..b572ffa 100644 --- a/include/weights_6.h +++ b/include/weights_6.h @@ -1,5 +1,5 @@ /* - This file is part of ct. + This file is part of ctak. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -12,13 +12,21 @@ General Public License for more details. You should have received a copy of the GNU General Public License - along with ct. If not, see . + along with ctak. If not, see . */ +#ifndef WEIGHTS_6_H +#define WEIGHTS_6_H + #define SIX_INP_NUM (3 + 6 * 6) #define SIX_DENSE_NUM 64 -extern const float six_dense_weights[SIX_DENSE_NUM][SIX_INP_NUM]; +/* See weights_5.h for the alignment rationale. */ +#define NN_ALIGNED __attribute__((aligned(16))) + +extern const float six_dense_weights[SIX_DENSE_NUM][SIX_INP_NUM] NN_ALIGNED; extern const float six_dense_biases[SIX_DENSE_NUM]; -extern const float six_output_weights[2][SIX_DENSE_NUM]; -extern const float six_output_bias[2]; +extern const float six_logit_weights[SIX_DENSE_NUM] NN_ALIGNED; +extern const float six_logit_bias; + +#endif -- cgit v1.3.1