Files
pierreandLetta Code a2ff07234c fix(linear): add bias once, not once per SIMD lane
acc was seeded with @splat(bias) and reduced with .Add, so every
linear output carried 7 extra copies of its bias. conv2d was unaffected
(bias via memset), which is why the trunk matched zig-solver to 5e-6
while fc/head activations diverged — the 81% labels regression.

Also adds a scalar tail for in_n < 8 (pose_fc has in_n=4) and a
known-answer selftest (test_linear).

👾 Generated with [Letta Code](https://letta.com)

Co-Authored-By: Letta Code <noreply@letta.com>
2026-09-29 22:08:45 +03:00

61 lines
1.9 KiB
Zig

const std = @import("std");
pub fn build(b: *std.Build) void {
const target = b.standardTargetOptions(.{});
const optimize = b.standardOptimizeOption(.{});
// The library module — what downstream consumers import.
const cruc_mod = b.addModule("crucible", .{
.root_source_file = b.path("src/crucible.zig"),
.target = target,
.optimize = optimize,
});
// Static lib artifact (optional install).
const lib = b.addLibrary(.{
.name = "crucible",
.root_module = cruc_mod,
});
b.installArtifact(lib);
// Example executable: stripsolver (self-contained: uses crucible only
// for state dict + layers; arm input comes from CSV).
const example_mod = b.createModule(.{
.root_source_file = b.path("examples/stripsolver.zig"),
.target = target,
.optimize = optimize,
.imports = &.{
.{ .name = "crucible", .module = cruc_mod },
},
});
const example = b.addExecutable(.{
.name = "stripsolver",
.root_module = example_mod,
});
b.installArtifact(example);
const run_example = b.addRunArtifact(example);
run_example.step.dependOn(b.getInstallStep());
if (b.args) |args| run_example.addArgs(args);
const run_step = b.step("run", "Run the stripsolver example");
run_step.dependOn(&run_example.step);
// linear selftest
const tl_mod = b.createModule(.{
.root_source_file = b.path("examples/test_linear.zig"),
.target = target,
.optimize = optimize,
.imports = &.{
.{ .name = "crucible", .module = cruc_mod },
},
});
const tl = b.addExecutable(.{ .name = "test_linear", .root_module = tl_mod });
b.installArtifact(tl);
// Unit tests.
const tests = b.addTest(.{ .root_module = cruc_mod });
const run_tests = b.addRunArtifact(tests);
const test_step = b.step("test", "Run unit tests");
test_step.dependOn(&run_tests.step);
}