3 Commits

Include renames

Author	SHA1	Message	Date
Hanzo AI	ddff44bbee	backend: add GPU substrate selector with fallback policy + ABI guards ... Adds the canonical runtime substrate selector for luxfi/crypto and decomplects all per-algorithm GPU dispatchers behind it. New `backend` API: - Default()/SetDefault/Resolved()/IsGPU/IsCGo/IsVanilla — runtime selection - CGoAvailable()/GPUAvailable() — real probes (was stubbed) - Probe() returning Snapshot{Default, Resolved, CGo, GPU, Disabled, GPUBackend, GPUDeviceCount, AccelVersion, Fallbacks} - GPUDisabled() reads LUX_GPU_DISABLE operator kill switch - RecordFallback(reason, where) atomic counter + one-shot log per reason, low-cardinality FallbackReason enum (disabled / unsupported / probe_failed / backend_unavailable / abi_mismatch) Dispatcher cleanup (one-and-one-way): - All Resolve(gpuhost.Available(), false) call sites replaced with IsGPU() - hqc switched to IsVanilla() (its accel batch wins for any non-vanilla pick) - gpu/gpu.go now delegates entirely to backend (no separate session) - internal/gpuhost dropped Snapshot()/Provenance — backend.Probe() canonical Build tag policy: CGo is the only gate. There is no `gpu` build tag. LLM.md documents the canonical surface.	2026-05-24 14:16:55 -07:00
Hanzo AI	bebcd1cb1a	ed25519/mldsa/mlkem: BENCHMARKS.md for v0.65 Metal kernels ... ed25519: documents RFC 8032 byte-equal Metal verify kernel (100 vectors) + N_threshold = 256 on M1 Max with 26.7x speedup at N=4096 vs equivalent- shape CPU port. dGPU CUDA port pending in lux/crypto/ed25519/gpu/cuda/. mldsa: documents structural-skeleton M1 kernel + dGPU residual. Per-thread serial work on Apple Silicon (~122 us SHAKE256-dominated) vs ~42 us NEON narrows expected M1 wall-clock speedup to ~7x at N=4096; CUDA H100/Ada closes that gap (~33x ceiling). mlkem: same shape as mldsa, ~75 us per-thread Metal vs ~26 us NEON. SHA3/SHAKE256 chains are the M1 ceiling; dGPU port closes it.	2025-12-27 22:32:49 -08:00
Hanzo AI	ecaca10cdb	canonical Go entry: backend selector + batch GPU paths via lux/accel ... luxfi/crypto becomes the single Go entry point for ALL Lux-family crypto. Every public function in this module now dispatches between three implementations through a runtime-selectable backend: - vanilla: pure-Go reference (always available) - cgo: native binding (blst, libsecp256k1, ckzg) where present - gpu: batch acceleration via github.com/luxfi/accel The dispatcher reads LUX_CRYPTO_BACKEND (auto|vanilla|cgo|gpu); auto picks the most capable backend the binary was compiled and linked with. New canonical packages: backend/ runtime backend selector (env + programmatic) internal/gpuhost/ accel session lifecycle, single per-process keccak/ Keccak-256 with batch GPU dispatch sha256/ SHA-256 with batch GPU dispatch sha3/ SHA3 / SHAKE family ripemd160/ RIPEMD-160 (Bitcoin/Lux address derivation) ed25519/ Ed25519 with batch GPU verify bn254/ canonical alias for bn256 (matches FIPS naming) modexp/ canonical alias for bigmodexp evm256/ EIP-196/197 precompile ABI wrappers poseidon/ Poseidon2 hash via gnark-crypto pedersen/ Pedersen commitments over BN254 ntt/ Number-Theoretic Transform reference polymul/ negacyclic polynomial multiplication Extended existing packages with batch GPU paths: bls/batch.go BatchVerify routes through accel.BLSVerifyBatch mldsa/batch.go BatchVerify (ML-DSA-65) via accel.DilithiumVerifyBatch mlkem/batch.go BatchEncapsulate / BatchDecapsulate via Kyber kernels secp256k1/batch.go BatchVerifySignature via accel.ECDSAVerifyBatch GPU dispatch is gated on (a) backend.Default(), (b) batch size threshold, and (c) accel.Available(). When any gate fails the call falls through to the vanilla CPU path; output is byte-identical. The legacy gpu/ stub is replaced with a thin probe surface (Available, Backend, Devices, Version) that delegates to the same gpuhost session. Tests show vanilla and gpu backends produce identical outputs across all batch entry points (-race clean). See AUDIT.md for the per-algorithm state matrix and honest gaps.	2025-12-27 19:30:33 -08:00