Products
Software that updates a result from the part of its input that changed. Four surfaces you can evaluate now, and the lineup behind them.
Evaluate today
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HST Console
A native desktop app with System, Comparison and Guarantee views. It observes routing and never changes it.
- Platforms
- Linux and macOS
- Install
- Desktop app, by arrangement
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Ubuntu image
An Ubuntu 24.04 amd64 image with the HST flavor. Routing applies only to processes that load MKL.
- Platform
- Ubuntu 24.04, amd64
- Install
- Offline image, by arrangement
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Delta Routing CLI
Scans a Python job, checks the machine it runs on, and adds one line where the scan points.
- Commands
- scan, doctor, seal
- Install
- Command-line tool, by arrangement
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Own-input assessment
Inspects a fixed sparse-matrix workload from your own application. Returns complete output comparisons, a supported-input check and a next action.
- Commands
- inspect, assess
- Backend
- CPU reference
- Platform
- Linux, Python 3.10 or later
Command-line tools
Each tool runs on your own machine and reports what it finds. None changes your application unless you ask it to.
hornesci-deltascan,doctor,seal. Finds the call sites in a Python job that are worth changing, checks the machine, and adds one line where the scan points.- Own-input assessment
inspect,assess. Checks a fixed sparse-matrix workload from your own application and returns complete output comparisons and a next action. hst-customer-check. Records the linkage, the machine and the workload identity of an application, without changing it.hst-scopestatus,disable. Shows the routing state of the Ubuntu image and turns it off for a machine. The original operation stays available.hst-performance-contractlist. Lists the machine-local qualifications that decide whether a workload takes the routed path.hst-matrixdbdemo. Runs a small demonstration of the matrix store that ships with the image.
The lineup
Runtime and bindings
- hstroute
- Python operator sessions with cache-aware delta routing, exact recompute and an explicit full-work fallback. Linux. Existing release.
- hst-general-ir
- A computational-graph library with dirty propagation and adaptive routing. Python on Linux.
- hst-arm64
- An AArch64 sparse-delta runtime with an explicit native ABI. Linux on aarch64.
- libhstcore
- An embedded C library: compile an operator and apply deltas. Licensed on request.
Assess and measure
- fit-probe
- Screens event streams and batch reports for delta fit.
- work-function-router
- Routing policies between full recompute, sparse delta and preparation cost, with saved-policy replay.
- runtime-rhythm
- Causal telemetry analysis and native signal collection, with declared counter availability.
Services and domains
- kv-residency
- KV page serialization, ordering, eviction and reload state.
- bio-delta-models
- Biological operator models with exact and budgeted updates.
- cv-gating
- Tile-based gating for video frames, with exactness checks.
Separate solution
- KILN
- A fixed dense operator inside Krylov solvers (CG, PCG, MINRES, FGMRES), with bitwise-reproducible results. The claim is reproducibility.
Programs and founders
HorneSci is a member of the NVIDIA Inception program and of AWS Activate.
© 2025 NVIDIA, the NVIDIA logo, and NVIDIA Inception are trademarks and/or registered trademarks of NVIDIA Corporation in the U.S. and other countries.
HorneSci is a member of AWS Activate. Amazon Web Services, AWS, and the Powered by AWS logo are trademarks of Amazon.com, Inc. or its affiliates in the United States and/or other countries.
- Hunter HorneCofounder, mathematics and theory
- Eric SpencerCofounder, implementation
Patent pending, US 63/922,208.
Where it fits
The approach suits repeated computation where a small part of the input changes between steps: a grid with a moving front, a rollup where a few readings move, a fixed camera where most pixels repeat.
When most of the input changes at each step, full recompute is the better choice. The assessment shows where that switch falls for your workload.