Janis
b72e8ec017
Prerequisite for parallel search. NNUE held all state on one instance: the immutable transposed L1 weight matrix alongside the mutable accumulator stack, scratch buffers and eval cache. That made concurrent eval calls corrupt shared buffers. Extract the read-only parameters into NNUEWeights (heavy to build, safe to share). NNUE now owns only per-instance mutable buffers and references the shared weights, so many evaluators can run in parallel over one weight matrix without duplicating it. Single-instance behaviour is unchanged — EvaluationNNUE still uses one evaluator, so play is identical. Also applies scalafmt alignment to the MopUp files. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
35 lines
1.5 KiB
Scala
35 lines
1.5 KiB
Scala
package de.nowchess.bot
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import de.nowchess.api.board.{Board, Color, File, Piece, Rank, Square}
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import de.nowchess.api.game.GameContext
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import de.nowchess.bot.bots.nnue.MopUp
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import org.scalatest.funsuite.AnyFunSuite
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import org.scalatest.matchers.should.Matchers
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class MopUpTest extends AnyFunSuite with Matchers:
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private def ctx(turn: Color, pieces: (Square, Piece)*): GameContext =
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GameContext.initial.withBoard(Board(pieces.toMap)).withTurn(turn)
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private val wk = Square(File.E, Rank.R1) -> Piece.WhiteKing
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private val wq = Square(File.D, Rank.R1) -> Piece.WhiteQueen
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private val bkCorner = Square(File.H, Rank.R8) -> Piece.BlackKing
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private val bkCenter = Square(File.D, Rank.R4) -> Piece.BlackKing
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test("zero in a balanced middlegame-like position (both sides have material)"):
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MopUp.score(ctx(Color.White, wk, wq, bkCorner, Square(File.A, Rank.R8) -> Piece.BlackQueen)) should be(0)
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test("zero when winner lacks mating material (lone king vs king)"):
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MopUp.score(ctx(Color.White, wk, bkCorner)) should be(0)
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test("positive for the winning side to move in KQ vs K"):
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MopUp.score(ctx(Color.White, wk, wq, bkCorner)) should be > 0
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test("negative for the bare-king side to move in KQ vs K"):
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MopUp.score(ctx(Color.Black, wk, wq, bkCorner)) should be < 0
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test("cornered bare king scores higher than centralized bare king"):
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val cornered = MopUp.score(ctx(Color.White, wk, wq, bkCorner))
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val centralized = MopUp.score(ctx(Color.White, wk, wq, bkCenter))
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cornered should be > centralized
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