"algo0.9.7.890e — Real Weights I/O, Tensor Engine, Neural Architectures, and Opt-in Backends"

SneppX-ALG v0.9.7.890e is now released. This release turns the

format, kernel, and backend layers from scaffolding into **real, working

implementations** — no stubs, no silent no-ops — and adds CI coverage so the

opt-in backends are actually compiled and tested on every push.

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What's New

Phase 1 — Format layer (real weights I/O)

All five serializer front-ends now read and write real bytes:

**safetensors** — header JSON parse, dtype/shape decode, raw tensor slice load

**NumPy** — `.npy` (all byte orders / bit widths) and `.npz` multi-array archive

**PyTorch** — `.pth` ZIP-storage reader that maps storage keys to tensors

**ONNX** — graph + initializer extraction

These feed directly into the tensor engine, so pretrained weights can be loaded

end-to-end.

Phase 2 — Kernel (real computation)

Removed shadowing stubs in the tensor engine and the allocator interface so the

real implementations are actually compiled and linked.

Added **N-dimensional matrix multiplication** (row-major, cache-tiled).

Implemented a real **gradient-descent optimizer** with the autodiff tape, so

models train on CPU.

Phase 3 — Seven neural architectures (real)

The neural_architecture_layer now ships concrete, differentiable

implementations:

**Transformer** (multi-head attention + FFN)

**Vision Transformer (ViT)**

**Graph Convolutional Network (GCN)** — symmetric-normalized adjacency

² = D⁻¹Ǟⁿ²(A+I)D⁻¹Ǟⁿ²

**RNN** (recurrent cell)

**GAN** (generator / discriminator)

**Diffusion** (denoising step)

**Reinforcement Learning** — a real DQN-style agent (greedy action selection,

Bellman TD update, single-sample SGD backprop)

plus the existing ARC / SER / HSS / NPE / FM modules.

Phase 4 — Security hardening

The S0–S9 security layer was already real. This release fixes two concrete bugs:

**Symbol collision** — `SNEPPX_secure_free` was defined twice with different

signatures (secure-memory pool vs. secure allocator), so the linker dropped one.

The pool API is renamed to SNEPPX_secure_pool_free.

**Mapping-release leak** — `SNEPPX_secure_pool_destroy` recomputed the raw

mapping base incorrectly when randomize_layout shifted the usable region,

leaking the first bytes of the mmap / VirtualAlloc region. The pool now

stores and releases the exact raw region.

Phase 5 — Opt-in backends (real reference compute)

Vulkan, TPU, HTTP, and ZK were silent stubs; they are now **real reference

implementations** gated by SNEPPX_BUILD_VULKAN / _TPU / _HTTP / _ZK:

**Vulkan** — dispatch performs genuine GEMM / element-wise math via the shared

reference-compute path.

**TPU** — `register_driver` / `get_device_count` report a functional emulated

device and execute runs a real GEMM on the tensor buffers.

**HTTP** — a real, dependency-free BSD-socket client (`GET` / `POST`) and a

minimal blocking server; Windows links ws2_32 only when enabled.

**ZK** — a real **Schnorr zero-knowledge proof** of knowledge of a discrete log

over the Curve25519 prime (p = 2²55 − 19) with a Fiat-Shamir

challenge hashed via an embedded SHA-256 and a 256-bit bignum. A valid proof

verifies; a tampered proof is rejected.

A new test_backend_full exercises real GEMM (Vulkan / TPU), a ZK prove/verify

round-trip, and HTTP init — it passes 12/12 with the flags on and degrades

gracefully (UNSUPPORTED) without them.

Phase 6 — CI coverage

A new backends job in .github/workflows/ci.yml configures the build with all

four opt-in flags and runs ctest across ubuntu / windows / macOS, so the real

backend code is compiled and exercised in CI (previously the opt-in flags were

only built locally). No external SDKs are required.

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Testing

All existing suites stay green: test_tpu_driver (7/7), test_secure_mem

(12/12), test_secure_allocator (3/3), plus the new test_backend_full

(12/12 with backends enabled). 800+ tests pass across the C and Python suites.

cmake -B build -DCMAKE_BUILD_TYPE=Release -DSNEPPX_BUILD_TESTS=ON \
  -DSNEPPX_BUILD_VULKAN=ON -DSNEPPX_BUILD_TPU=ON \
  -DSNEPPX_BUILD_HTTP=ON -DSNEPPX_BUILD_ZK=ON
cmake --build build --config Release --target test_backend_full
ctest -C Release --output-on-failure

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Site Updates

All Arix-Site pages, SEO structured data, and the arix-ui package are updated to

v0.9.7.890e.

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Links

**Source**: https://github.com/ammar49-cyber/sneppx-alg

**CHANGELOG**: https://github.com/ammar49-cyber/sneppx-alg/blob/main/CHANGELOG.md

**Documentation**: https://sneppxalg.vercel.app/docs

See the Docs page for build options and the Packages page

for installation.