implement lazy SMP

.github/workflows/ci.yml

@@ -14,34 +14,34 @@ jobs:
   fmt:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - run: cargo fmt --all -- --check
 
   clippy:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - run: cargo clippy --all-targets --all-features -- -D warnings
 
   audit:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - run: cargo install --force cargo-audit
     - run: cargo generate-lockfile
     - run: cargo audit
 
   check:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: dtolnay/rust-toolchain@nightly
     - run: cargo check --all-targets --all-features --workspace
 
   doc:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: dtolnay/rust-toolchain@nightly
     - run: cargo doc --all-features --workspace --no-deps
 
@@ -53,7 +53,7 @@ jobs:
       matrix:
         os: [ubuntu-latest, windows-latest, macOS-latest]
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: dtolnay/rust-toolchain@nightly
     - run: cargo test --all-targets --all-features --workspace
 
@@ -65,24 +65,23 @@ jobs:
       matrix:
         sanitizer: [address, leak, memory, thread]
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - run: cargo test --tests --all-features --workspace --target x86_64-unknown-linux-gnu -Zbuild-std -Zunstable-options --config='build.rustflags = ["-Zsanitizer=${{ matrix.sanitizer }}"]' -- --test-threads=1
       env:
         CC: "clang"
         CFLAGS: "-fsanitize=${{ matrix.sanitizer }}"
-        TSAN_OPTIONS: "suppressions=tsan"
 
   coverage:
     needs: [test]
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: dtolnay/rust-toolchain@nightly
-    - uses: taiki-e/install-action@cargo-llvm-cov
+    - run: cargo install --force cargo-llvm-cov
     - run: cargo llvm-cov --all-features --workspace --lcov --output-path lcov.info
       env:
         PROPTEST_CASES: 32
-    - uses: codecov/codecov-action@v3
+    - uses: codecov/codecov-action@v5
       with:
         token: ${{secrets.CODECOV_TOKEN}}
         files: lcov.info
@@ -95,16 +94,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macOS-latest]
-        include:
-        - os: ubuntu-latest
-          target: x86_64-unknown-linux-musl
-        - os: windows-latest
-          target: x86_64-pc-windows-msvc
-        - os: macOS-latest
-          target: x86_64-apple-darwin
     steps:
-    - uses: actions/checkout@v3
-    - run: sudo apt install -y musl-tools
-      if: runner.os == 'Linux'
+    - uses: actions/checkout@v4
     - run: cargo install --force cargo-make
     - run: cargo make cinder

Cargo.toml

@@ -38,11 +38,10 @@ futures = { version = "0.3.31", default-features = false, features = [
 ] }
 rand = { version = "0.8.5", default-features = false, features = ["std", "min_const_gen"] }
 rand_pcg = { version = "0.3.1", default-features = false }
-rayon = { version = "1.10.0", default-features = false }
 ruzstd = { version = "0.8.0", default-features = false, features = ["std"] }
 
 [dev-dependencies]
-criterion = { version = "0.5.1", default-features = false, features = ["rayon"] }
+criterion = { version = "0.5.1", default-features = false }
 criterion-macro = { version = "0.4.0", default-features = false }
 proptest = { version = "1.6.0", default-features = false, features = ["std"] }
 test-strategy = { version = "0.4.0", default-features = false }

lib/search.rs

@@ -1,6 +1,5 @@
 mod control;
 mod depth;
-mod driver;
 mod engine;
 mod history;
 mod killers;
@@ -13,7 +12,6 @@ mod transposition;
 
 pub use control::*;
 pub use depth::*;
-pub use driver::*;
 pub use engine::*;
 pub use history::*;
 pub use killers::*;

lib/search/control.rs

@@ -11,7 +11,7 @@ pub struct Interrupted;
 pub enum Control<'a> {
     #[default]
     Unlimited,
-    Limited(Counter, Timer, &'a Trigger),
+    Limited(&'a Counter, &'a Timer, &'a Trigger),
 }
 
 impl Control<'_> {