# Changelog

All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## 3.0.26 - 29/07/25
- Added single tray galaxy reset option
- Bumped luwen from 0.7.5 -> 0.7.10
  - Chip detect now doesn't wait for eth to train for the 6U galaxy's, allowing multi tray resets to happen independently
- Updated readme with the new reset option

## 3.0.25 - 29/07/25
- Added packaging

## 3.0.24 - 04/07/25
- Now users have 2 galay reset modes available
  - glx_reset: resets the galaxy, informs users if there has been an eth failure
  - glx_reset_auto: resets the galaxy upto 3 times if eth failures are detected

## 3.0.23 - 03/07/25
- Bumped luwen 0.7.3 -> 0.7.5 to fix cargo lock compatibilty issue

## 3.0.22 - 02/07/25
- Bumped tt-tools-common 1.4.16 -> 1.4.17
- Bumped luwen 0.7.2 -> 0.7.3
- Bumped smi 3.0.21 -> 3.0.22

## 3.0.21 - 26/06/25

- Added option to not re-init chips after reset
- Updated galaxy 6u reset option from --ubb_reset to -glx_reset
- Removed the a3 arc message before doing a 6u reset, meaning we can reset even when chips are not pcie accessible
- Added eth link check and return failure if any of the eth links have a LINK_INACTIVE_FAIL_DUMMY_PACKET failure

## 3.0.20 - 04/06/25

- Chore - bumped tt-tools-common version to fix driver version check for compatability with tt-kmd 2.0.0

## 3.0.19 - 30/04/25

- Fixed an issue preventing the telemetry thread from being dispatched when the user clicked tab 2

## 3.0.18 - 22/05/25

- Added BH and WH UBB board type support
- Removed the dependency on tt-tools-common for this info

## 3.0.17 - 13/05/25

- Added proper telemetry heartbeat checks for Grayskull

## 3.0.16 - 12/05/25

- Used new ResetTypes from tools-common to simplify reset code
- Added a heartbeat spinner to the telemetry pane. We expect this spinner to update about twice per second. If the spinner is not moving, this indicates new telemetry is not being fetched.

## 3.0.15 - 24/04/25

- Patch for the ubb_reset to just discover local only post reset. Looks like eth port status 2 has been re-used to mean connected and pyluwen waits for it to clear, leading to eth timeout.

## 3.0.14 - 21/04/25

- Added wh ubb reset via command line `tt-smi --ubb_reset`. Intention is that this command line option will be removed and integrated into `tt-smi -r` after we update board detection with the correct external naming.
- Removed some unused imports and code - no functional changes

## 3.0.13 - 21/03/25

- Removed get\_sw\_versions

## 3.0.12 - 21/03/25

- Chore - bumped luwen version to include eth fw version check fix

## 3.0.11 - 13/03/25

- Chore - bumped luwen version to include enable chips with external connections but no routing

## 3.0.10 - 10/03/25

- Chore - bumped luwen version to include protoc lib detection check

## 3.0.9 - 07/03/25

- Chore - bumped luwen v

# Changelog

All notable changes to TT-Lang will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## Version 1.1.1

### Compiler

- Fix for live-interval boundary computation (issue [#536](../../issues/536))
- Fix for all-zero results in FP32 reductions (issue # [#533](../../issues/533))
- Fix for inferred `pop` and `push` (issues [#536](../../issues/536), [#554](../../issues/554))
- Fix for write pointer tracking on pipe sender accross iterations (issue [#578](../../issues/578))
- Fix to report data type mismatch error
- Fix to report DFB over allocation error (issue [#511](../../issues/511))
- Support for pipenet predicates `is_src`, `is_dst` and `is_active` (issue [#541](../../issues/541))
- Support for `ttl.math.typecast`

### Simulator

- Support for inferred `pop`, `push` and `copy`'s transfer handle `wait`
- Support for pipenet predicates `is_src`, `is_dst` and `is_active`
- Support `all_gather`
- Support `bfloat8_b`
- Improved/actionable error messages
- Improved performance by simulating math in FP32

### Infrastructure

- TT-Lang installable with `pip install tt-lang` for full installation and `pip install tt-lang-sim` for simulator only
- [Matmul benchmarks](benchmarks/matmul/README.md)

## Version 1.0.0

### Compiler

- Support `+=` syntax in conjunction with dot product (`@`) lowered to packer L1 accumulation
- Support implicit temporary compute-kernel-local DFBs
- Support `ttl.Pipenet`
- Support implicit `ttl.Block.push` and `ttl.Block.pop`
- Support implicit `ttl.Transfer.wait`
- Support for `expm1`, `exp2`, `ceil`, `sign`, `gelu`, `silu`, `hardsigmoid`, `square`, `softsign`, `signbit`, `frac`, `trunc` in `ttl.math`

### Simulator

- Support for `ttl.GroupTransfer`
- SPMD and mesh device simulation support
- Support for `ttnn.all_reduce` CCLs
- Use tracing to report statistics with `tt-lang-sim-stats`
- Remote L1 reads/writes statistics

### Examples and documentation
- Matmul tutorial

## Version 0.1.8

### Compiler

- Support for dot product operator (`@`) with lowering to [`ckernel::matmul_block`](https://docs.tenstorrent.com/tt-metal/v0.55.0/tt-metalium/tt_metal/apis/kernel_apis/compute/matmul_block.html)
- Support for fusing matmul and certain elementwise operations
- Support lowering to `pack_tile_block`
- Support for `ttl.math.fill`, `ttl.math.reduce_sum`, `ttl.math.reduce_max`, and `ttl.math.transpose`
- Support for arbitrary sub-blocking including dot product K-dimension to allow maximizing L1 usage and reuse
- Support for `sin`, `cos`, `tan`, `asin`, `acos`, `atan` in `ttl.math`
- Support for L1 sharded tensors
- Support for tensors with BF8 data type
- SPMD support (`ttnn.open_mesh_device`)

### Simulator

- Track L1 space and number of DFBs usage and warn when exceeded
- Support for tensors with row-major layout
- Support for L1 sharded tensors

### Examples and documentat

# Changelog

## [0.9.5] - 2026-05-12

### Changed

Hardware hang detection for NOC and PCIe.
Tracy profiler integration with instrumentation across TLB, PCIe and sysmem paths.
DeviceProtocol ported to TTDevice, including DMA migration.
SocDescriptor split into static (SocArchDescriptor) and runtime parts.
LITERAL coordinate system in CoreCoord.
Multicast to all TENSIX cores.
SMN support.
SWEmuleChip software emulation chip and Quasar simulation support (incl. 4GB TLB).
Unified UmdException/UMD_ASSERT/UMD_THROW error handling across the codebase.

## [0.9.4] - 2026-03-18

### Changed

TopologyDiscoveryOptions refactoring.
TopologyDiscoveryOption to retrain ETH links on 6u.
TLBs for TTsim.
DRAM retrain support.
DeviceProtocol changes.
Simulator in TTDevice changes.
ETH heartbeat check.

## [0.9.3] - 2026-02-24

### Changed

Sigbus safe read write API.
Remove 4U related code.
Implement BH SPI as well, so full SPI support.
P150 expects harvested cores.
TT_VISIBLE_DEVICES uses logical IDs.

## [0.9.2] - 2026-02-09

### Changed

SPI interface for Wormhole.
PCI BDF based sorting and filtering.
Multicast PCI DMA.
Support Blackhole loudbox.
Many code fixes and test enhancements.

## [0.9.1] - 2026-01-23

### Changed

Started publishing to pypi.

## [0.9.0] - 2026-01-23

### Changed

Warm reset notification and callback implementation.

## [0.8.6] - 2026-01-20

### Changed

Make predicting ETH FW from CMFW optional in TopologyDiscovery.

## [0.8.4] - 2026-01-16

### Changed

Use older manylinux image

## [0.8.3] - 2026-01-15

### Changed

Reverted remote discovery issue

## [0.8.2] - 2026-01-15

### Changed

Support warm reset without secondary bus reset.
Expose subsystem vendor id.

## [0.8.1] - 2026-01-15

### Changed

Support dma functions on TTDevice layer

## [0.8.0] - 2026-01-14

### Changed

Many functional fixes and minor changes.
Final fixes needed for integration into tt-smi.
Also contains adjustments needed for integration into exalens.

## [0.7.0] - 2025-11-29

### Changed

Changed to a more generic arc_msg API.

## [0.6.0] - 2025-11-24

### Changed

Change the usage of TLBs such that KMD is in control of TLB allocation instead of UMD.
TLBs are now allocated using KMD's dedicated API.

## [0.5.3] - 2025-11-14

### Changed

Added generation of .deb and .rpm packages.
Added three separate packages (runtime, development and python).

## [0.5.1] - 2025-11-12

### Changed

Manylinux builds and Pypi test publishing.
Many smaller fixes and improvements.

## [0.4.0] - 2025-10-18

### Changed

Removed old type names.

## [0.3.0] - 2025-10-17

### Changed

Many smaller fixes and improvements.
TTsim support improvements.
JTAG support improvement.
Fixing CMake install path.
Further work on integrating new KMD TLBs.

## [0.2.0] - 2025-09-15

### Changed

A couple of smaller fixes and improvements, including L2CPU harvesting, fixes for new FW. Better TTSim support. Further JTAG support.
Introduced new soft reset API.
Introduced lite fabric initial version.

# Changelog

All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## 1.2.11 - 17/06/2025

### Updated

- Updated mesh coord generation to be connection type agnostic
- Added failure and exit if mesh type detected, but not enough connections
- Added warning in README about lack of supoort for BH and 6U boards

## 1.2.10 - 05/06/2025

### Updated

- Bumped tt-tools-common version to fix driver version check for compatability with tt-kmd 2.0.0

## 1.2.9 - 30/05/2025

### Updated

- Bug fix for https://github.com/tenstorrent/tt-topology/issues/39. Now the tool will use a DFS longest path to determine a linear layout if its not a fully connected graph.
- Updated initial device detection - now it needs full noc access for octopus and list options

## 1.2.8 - 08/05/2025

### Updated

- Fixed issue where tool would fail when PCI interfaces don't start from ID 0
- Now using actual PCI interface IDs from devices instead of assuming sequential numbering

## 1.2.7 - 07/05/2025

### Updated

- Use tools-common 1.4.15
- Use type checking in octopus reset

## 1.2.6 - 05/05/2025

### Updated

- Bug fix: added "ignore-eth" flag to first chip detect to avoid eth training loops forever and truly detect pcie only chips
- Chore: bumped luwen

## 1.2.5 - 15/04/2025

### Updated

- When flashing to isolated mode, we now flash the WH ethernet ports to a disabled state,
  in order to prevent their use.

## 1.2.4 - 02/04/2025

### Updated

- You can now run `tt-topology -l isolated` to flash cards to the default (non-connected) state
- Users are now warned about missing or loose cables

## 1.2.3 - 21/03/2025

### Fixed

- Bumped luwen (0.6.2 -> 0.6.3) to include eth version check bug for TG setup

## 1.2.2 - 13/03/2025

### Fixed

- Bumped luwen version to make it more robust against eth fw updates

## 1.2.1 - 13/03/2025

### Fixed

- Moved the spi reads after the reset to increase stability during M3 L2R copy
- Bumped luwen version

## 1.2.0 - 06/03/2025

### Fixed

- Updated how local eth board info is calculated to make it agnostic to eth fw version
- bumped tt-tools-common version
- Added traceback printing when catching exceptions in main.

## 1.1.5 - 14/05/2024

### Updated

- Bumped luwen (0.3.8) and tt_tools_common (1.4.3) lib versions
- Removed unused python libraries

## 1.1.4 - 25/03/2024

### Fixed
- Changed detect_chips with detect_chips_with_callback to enable detailed debug info.

## 1.1.3 - 22/03/2024

### Fixed
- Bumped tt-tools-common version to avoid pip discrepancy.

## 1.1.2 - 22/03/2024

### Fixed
- Fixed command line bug when no args are provided.

## 1.1.1 - 21/03/2024

### Fixed
- Fixed reference to pyluwen lib

## 1.1.0 - 12/03/2024

### Added
- Octopus Configuration (4 n150s connected to 1 galaxy)


## 1.0.2 - 12/03/2024

### Fixed
- Dependency bug with tt_tools

# Changelog

All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## Unreleased

### Added

- `flash`: `--update-boot-images` writes the bundle's bootloader and recovery
  images even when the board already holds the same ones, for provisioning and
  board recovery.

### Changed

- `flash`: the boot-critical images (`cmfw`, `safeimg`, `safetail`, `failover`)
  and the ROM and failover descriptor tables are now left alone when the board
  already holds the same content, so a routine update no longer opens a
  power-loss window on the path by which a board boots at all. Whether an image
  is the same is decided by the SHA-256 and key hash that `imgtool` records in
  it, because signing is not reproducible: two builds of the same source differ
  only in the trailing signature. Pass `--update-boot-images` for the previous
  behaviour of writing them unconditionally.

### Fixed

- `flash`: a P300 chip running recovery firmware publishes no board id, so the
  pairing check filed it as not a P300, left its sibling alone in a group of
  one, and dropped both halves of the card from the flash list -- refusing the
  board because of the chip that most needed flashing. Such a chip is now
  identified by its PCI subsystem id, which carries the same UPI whatever the
  chip is running.
- `boot_fs`: `tt_boot_fs_fd.image_tag_str()` compared each `c_uint8` tag byte
  against the string `"\0"`, which never matched, so NUL padding was included in
  the decoded tag. Tags shorter than 8 bytes (e.g. `cmfw`) now compare correctly.
  This makes `read_tag` robust across the multi-table boot filesystem layout
  (ROM, failover, and mutable descriptor tables).

## 3.4.0 - 30/07/25

- Bump pyyaml 6.0.1 -> 6.0.2
- Improve error message formatting
- No longer have to use --force for flashing BH cards

## 3.3.5 - 03/07/25

- Bump luwen 0.7.3 -> 0.7.5

## 3.3.4 - 02/07/25

- Bump tt-tools-common 1.4.16 -> 1.4.17
- Bump luwen 0.6.4 -> 0.7.3

## 3.3.3 - 05/06/2025

- Bumped tt-tools-common version to fix driver version check for compatability with tt-kmd 2.0.0

## 3.3.2 - 14/05/2025

- Bump tt-tools-common version to latest

## 3.2.0 - 12/03/2025

### Updated

- luwen version bump to bring inline with tt-smi; provides stability fixes

## 3.1.3 - 06/03/2025

### Added

- luwen version bump to include bh arc init checks

## 3.1.2 - 28/02/2025

### Added

- Support for more BH cards: p100a, p150, and p150c

## 3.1.1 - 06/01/2025

### Updated

- Bumped luwen version to accomodate Maturin updates

## 3.1.0 - 29/10/2024

### Added

- Support for flashing the BH tt-boot-fs file format
- Bumped luwen version to 0.4.6 to allow resets when chip is inaccessible

## 3.0.2 - 17/10/2024

### Fixed
- Unbound variable when exception is thrown when getting current fw-version

## 3.0.1 - 16/10/2024

### Changed
- B

# Changelog

The **canonical, complete release log lives in [`debian/changelog`](debian/changelog)** —
that's the file the `.deb` packages are built from and where every release is
recorded in full. This file is a friendly pointer plus a summary of the most
recent releases; it deliberately does not duplicate the whole history.

To see everything:

```bash
less debian/changelog          # full history
git tag                        # released versions
```

## Recent releases

### 0.11.0
- **Add**: Training view (`t`) — a full-screen visualization of a live
  tt-train run, drawn as the network it is: a character grid of transformer
  blocks and attention heads fed by token particles, a loss "mountain range"
  under a twinkling aurora nightscape that opens up as the model converges,
  plus chip telemetry alongside it.
- **Auto-attaches with no command**: scans running processes for a tt-train
  example binary (`nano_gpt`, `mnist_mlp`, `linear_regression`), then resolves
  `/proc/<pid>/fd/1` to find and tail that process's log. Checkpoint saves
  are detected by mtime on the run's rolling checkpoint file.
- **Honest limitation**: tt-train's per-step stream can only be tailed if its
  stdout was redirected to a real file at launch (`> train.log`). If fd 1 is
  a pipe or tty, retroactively reading it is an OS-level impossibility, not a
  gap in this tool — the view says so and falls back to what it can still
  see (process liveness, chip telemetry, and checkpoint mtime) rather than
  drawing a fake loss curve. Gradient norms, MFU, and throughput counters
  aren't emitted live either, so the view derives tokens/sec and ETA only
  from what it can actually read.
- Nine independent color channels (loss magnitude, run-history timeline,
  loss-delta direction, forward/backward sweep cadence, cache compile/steady
  state, checkpoint bursts, plus chip temp/power) — see the new legend and
  explain overlays.

### 0.10.3
- **Security fix**: a direct-vLLM host process's own `PATH` was forwarded
  onto the `sh` the monitor spawns to probe it — a bare `Command::new("sh")`
  lookup resolves via whatever `PATH` ends up on the builder, so an
  attacker-controlled process (gated only by `MESH_DEVICE`/`TT_METAL_HOME`,
  which the process itself controls) could have redirected the root-run
  monitor into executing a planted binary. Fixed by invoking the interpreter
  via an absolute path and never forwarding the target's own `PATH`.
- **Fix**: four GDDR-telemetry correctness gaps — a stale 8-channel cap
  dropping real fault data for Blackhole's channels 8–11, Starfield's DDR
  planets missing an `enabled` check present in every other memory
  visualization, the Insights GDDR temp/ECC rows silently disappearing
  instead of falling back on partially-usable real data, and a missing ECC
  counter parsing as a genuine zero instead of "not reported".
- **Perf**: a host-keyed service's per-tick probe redundantly re-read
  `/proc/<pid>/environ` up to four times and re-walked

# Changelog

All notable changes to the TT-VSCode-Toolkit will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

---

## [0.1.29] - 2026-09-07

Correctness pass on what a TT-QuietBox 2 actually ships. The three-path venv
activation blocks added in 0.1.25 offered `~/.tenstorrent-venv` as the "QB2
pre-installed" environment for TT-NN and vLLM, and described a QB2 as "4
independent single-chip devices". Neither claim is true, and this release
corrects both everywhere they were found — including in this repo's own
`CLAUDE.md`, `llms.txt`, and two lessons outside the original diff
(`content/pages/FAQ.md`, `monkeypatch-ttnn.md`) that had never been touched
by the earlier topology/venv corrections this built on.

Verified against `tt-installer`'s `install.m4`, the published `tt-metalium`/
`tt-metalium-models` GHCR image configs, `tt-inference-server`'s `run.py`,
and tt-metal `main` — plus live end-to-end testing on a QB2-equivalent
board — rather than other Tenstorrent docs, which largely descend from the
same stale source note this release supersedes.

### Fixed

**`~/.tenstorrent-venv` is not a TT-NN or vLLM environment.** `tt-installer`
only ever installs `tt-smi`, `tt-flash` and (opt-in) `tt-topology` into it, so
`import ttnn` and `import vllm` both fail there. TT-NN lives **only** inside
the TT-Metalium container (`tt-metalium`, where `python3` is
`/opt/venv/bin/python3`); vLLM runs in a container `tt-inference-server`
launches. Corrected everywhere this was asserted or assumed:
- The "QB2 pre-installed image" activation line in all 11 TT-NN blocks across
  `explore-metalium`, `video-generation-ttmetal`, `animatediff-video-generation`,
  `cookbook-game-of-life`, `cookbook-mandelbrot`, `cookbook-particle-life`,
  `cookbook-image-filters`, `cookbook-audio-processor`, and the four lessons
  that used it as a premise (`lfs-00-intro`, `lfs-05-train-and-run`,
  `ct1-understanding-training`, `ct4-finetuning-basics` — their `ttml`-needs-a-
  source-tree conclusions were already correct; only the premise changed).
- `tt-installer`'s own "may not include the container wrapper" framing —
  backwards: a QB2 *has* the wrapper (it's the only way to reach TT-NN) and
  has no host-side TT-NN. Its "Test TT-Metalium" button and pytest demo
  example were also broken independent of this: missing `-c` (so `bash` tried
  to run the whole command string as a filename), a bare `ttnn.__version__`
  that doesn't exist on the built package (now `getattr(ttnn, "__version__",
  "import OK")`), and — for the demo — the wrong container and a Blackhole
  demo path that moved in tt-metal's January 2026 reorg (now
  `tt-metalium-models` + `models/demos/vision/segmentation/ufld_v2/blackhole`,
  with `--install-metalium-models-container` named as off-by-default).
- `vllm-production`'s new "On a QB2 — read this first" section (pointing a

# Changelog

All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## 1.4.17 - 02/07/2025

### Changed
- Loosened requirements on pyproject.toml to make it more compatible in different venvs

## 1.4.15 - 05/05/2025

### Changed
- parse\_reset\_json now returns a ResetInput with stricter typing

## 1.4.14 - 04/02/2025

### Added
- New flags in reset config file generation to disable sw\_version reporting

## 1.4.13 - 23/1/2025

- Removed nr\_hugepages count from compatibility, as hugepages allocation is tricky
  and deserves its own widget elsewhere.

## 1.4.12 - 16/1/2025

- Added TTHostCompatibilityMenu to replace Host Info and Compatibility boxes
- Added a count of nr\_hugepages to the TTHostCompatibilityMenu

## 1.4.11 - 30/12/2025

- Updated Luwen version to fix Maturin issue

## 1.4.10 - 16/12/2024

### Changed
- detect\_chips\_with\_callback now takes a print\_status arg

## 1.4.9 - 11/12/2024

### Changed
- A failed reset now results in a fail exit code on BH

## 1.4.8 - 11/10/2024

### Changed
- Updated reset completion logic to handle the case where the bmfw needs to upgrade itself

## 1.4.7 - 11/10/2024

### Added
- Implemented m3 reset option for Blackhole

### Fixed
- Fixed crash during driver version dection when the "extraversion" field is used
    - i.e. 1.28-bh

## 1.4.6 - 17/07/2024

### Added
- Reset support of Blackhole

## 1.4.5 - 11/07/2024

### Added
- Bump pyluwen library version (v0.3.8 -> v0.3.11)
- Moved pyluwen v0.3.11 to optional dependencies in pyproject.toml

## 1.4.4 - 21/06/2024

### Added
- Version bump of python dependencies in pyproject.toml (dependabot)
    - requests (2.31.0 -> 2.32.0)
    - tqdm (4.66.1 -> 4.66.3)
- Pydantic library version bump (1.* -> >=1.2) to resolve: [TT-SMI issue #27](https://github.com/tenstorrent/tt-smi/issues/27)

## 1.4.3 - 14/05/2024

### Added
- Arm platform check and warning for WH device resets in compatibility menu
- Added check for WH device init after reset and prompt user to reboot host if chips are still non recoverable
- Bumped textual (0.59.0) and luwen (0.3.8) lib versions

## 1.4.2 - 04/04/2024

### Added
- Added "silent" flag to WH and GS resets to make them more versatile for use in other tools

## 1.4.1 - 22/03/2024

### Fixed
- removed pyluwen version to avoid dependency issues in other repos

## 1.4.0 - 19/03/2024

### Added
- detect_device_fallible that will provide feedback about chip state during init

### Fixed
- Update min driver version to 1.26 to perform lds reset
- Reset config file uses dev/tenstorrent id
- Catch JSON errors in reset config parsing
- Make nested dirs when initializing reset config path

## 1.3.0 - 06/03/2024

### Added
- Migrated GS Tensix reset to tools_common
- Migrated all related GS data files
- Functions to fetch arc and eth fw versions from telemetry

# Changelog

All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## 0.2.2 - 31/07/2024

### Added
- Added glx reset support
- Threaded start and end of burnin to increase burnin speed
- Added prints to indicate which chip we are currently running on
- Added support for bh harvesting

## 0.2.1 - 16/01/2024

### Bug fix
- Fix for https://github.com/tenstorrent/tt-burnin/issues/6
- BH reports asic temperature as a signed 16_16 int unlike GS and WH
- Added missing support to report BH asic temperatre

## 0.2.0 - 29/10/2024

### Added
- BH burnin support

## 0.1.1 - 14/05/2024

### Updated

- Bumped luwen (0.3.8) and tt_tools_common (1.4.3) lib versions

## 0.1.0 - 04/04/2024

First release of opensource tt-burnin

### Added
- GS and WH burnin support

# Changelog

All notable changes to TT-Bio are recorded here. Versioning is [SemVer](https://semver.org);
releases are cut from a commit that has passed the on-hardware test suite (see `RELEASING.md`).

## [Unreleased]

### Added

- **Protenix-v2 and OpenDDE now report per-chain-pair ipTM in `results.json`.** A multi-chain
  entry carries `pair_chains_iptm` and `chains_ptm`, the same two fields Boltz-2 already writes
  and in the same shape, for every sample rather than only the best one. Read
  `pair_chains_iptm[binder][target]` to score one named interface of a complex; the global `iptm`
  averages the whole interface, and on a two-chain target the two agree. The matrix was already
  computed to derive the per-chain averages and then dropped, so nothing about the fold changed:
  the same input gives the same coordinates, pLDDT, pTM and ipTM as before. Opened as #15 by
  @ssiddhantsharma; the diagonal (each chain's own pTM) and the device confidence path
  (`TT_PROTENIX_CONF_DEVICE=1`) were added on top of it.

## [0.9.0] - 2026-09-18

### Added

- **A preflight warning when a host OpenMPI is set up to break the bundled one.** tt-metal ships
  the OpenMPI it wants and single-host prediction needs no MPI setup; `OMPI_MCA_*`, `OPAL_PREFIX`
  or a foreign `libmpi` on `LD_LIBRARY_PATH` aborts it in `MPI_Init` before any Python runs. Every
  local-worker path now names what it saw and points at the `unset` line, and changes nothing for
  you. README gained the matching troubleshooting note. Reported in #12 by @ssiddhantsharma.

- **`tt-bio --version`.** `-V` works too. Both print `tt-bio, version X.Y.Z` from the
  installed package metadata and exit, without importing ttnn or opening a card.

### Fixed

- **A BoltzGen design spread over a full box now gets the same idle-thread parking a full box of
  folds does.** The design fan-out built its per-card worker environment itself, with its own copy
  of the cores-over-workers split, so it capped threads but never parked them: 32 single-chip design
  workers on a 64-thread host sat at a two-thread share spinning their OpenMP pools through every
  device sync, which is the one regime parking is for. It now takes that environment from
  `runtime.host_thread_cap_env`, the same builder `predict` and ESMC use. The thread cap itself is
  unchanged at every width, and an operator's own `OMP_NUM_THREADS` still wins.

- **A host where the device bring-up lock file is not writable no longer brings chips up
  unserialized in silence.** `/tmp/tt-bio-device-open.lock` belongs to whichever account created
  it, so a second account on a shared box got a `PermissionError`, and tt-bio answered it by
  skipping serialization entirely with nothing printed. That is the exact race the lock exists to
  prevent: concurrent opens deadlock in the driver's `LockManager`, or bring a chip up remote-only
  so it throws on the first program dispatch. tt-bio now falls back to a per-uid lock file beside
  the shared one and says on std

# Changelog

All notable changes to TT-Atom are recorded here. Versioning is [SemVer](https://semver.org);
releases are cut only from a commit that has passed the on-hardware release gate — accuracy
parity, no OOM across the supported size range, no perf or UX regression, and a clean install
smoke (see `RELEASING.md`).

## [Unreleased]

Behaviour changes are all in the knobs and the caches, not in the models: every numeric path is
byte-identical to 0.3.0.

### Fixed
- The release gate's perf leg no longer decides by luck. It took one measurement per model against
  a fixed 15% threshold, and on a p150a the throughput spread between runs reaches that threshold
  on its own: in the gate run that closed this entry, `uma-s-1-omol-batch` drew 88.9, 104.4 and
  104.8 sys/s, and the first of those alone is a 20% shortfall against the baseline. The leg now
  waits for every other process to let go of a card and gates the median of three independent
  runs, printing all three. With no quiet window it measures anyway and reports a shortfall as
  `GAP`, since a contended run is not evidence of a regression.
- `benchmarks/_harness.host_quiet()` reported the host busy forever. It grepped process command
  lines for `tt_bio`, which matches any agent whose own arguments merely mention it; it asks the
  kernel who holds a `/dev/tenstorrent` node now. The three benchmarks that wait for a quiet host
  used to burn their full 40-minute budget and stop without measuring.
- The edge-bucketing speedup in the README and `docs/orb-port.md` is re-measured and now names the
  environment it was taken in. It said 1.4x cold wall-clock on a 20-system screening stream; two
  draws on the pinned tt-metal source build give **1.11x and 1.14x** (235.1 / 236.5 s unbucketed
  against 210.9 / 207.6 s bucketed). What bucketing saves is compiles, and that is unchanged and
  exact: 20 distinct edge shapes collapse to 7 buckets and 2350 fewer kernel files are built,
  identical to the file across both draws. The wall-clock ratio fell because a compile costs about
  half what it did in whatever environment produced the earlier number — which that log does not
  record, so the three subprocess benchmarks now stamp `ttnn_version` next to `git_sha`.
- `benchmarks/_harness.sandbox_env` resolves the sandbox `$HOME`. A relative `--workdir` reached
  the child as a relative `$HOME`, and tt-metal resolves that against the child's own working
  directory: it died deep in the JIT build with "Failed to open compile failure log file" and a
  path that reads as correct. `bench_compile_pain.py` also defaulted to `--card 3`, a card that
  does not exist on the host this repo is routed to.
- `TT_ATOM_SCATTER_THRESHOLD` is documented. It is the node count above which UMA's dense one-hot
  scatter gives way to the linear path, and therefore what bounds DRAM on a large cell, but it
  appeared in no doc.
- The release gate reads `OVERALL: PASS` again. Both Orb perf rows were seeded on a stock `ttnn`
  0.68.

# Changelog

All notable changes to tt-forge-compiletron are documented here.

## [Unreleased]

### Added
- `docs/kv-cache-bench.md` — teaching companion for the StaticCache KV cache
  benchmark, explaining the two-graph pattern and why static shapes matter

---

## [1.6.0] — 2026-06-30

### Added
- **StaticCache KV cache decode benchmarking** — `bench_decode.py` now compiles
  a second forge graph for the decode step using `transformers.StaticCache`.
  The StaticCache is embedded in `KVDecodeWrapper` as a submodule so forge
  traces K/V tensors as model state and emits `FillCache`/`UpdateCache` ops.
  Falls back to full-recompute for models that don't support `cache_position`.
- `_try_kv_decode()` function — detects model dtype to avoid bfloat16/float32
  mismatches, resolves tokenizer from loader or AutoTokenizer, pre-fills cache
  on CPU before forge compilation.
- Bestiary `decode_note` field now records the method used per model
  ("StaticCache KV cache" vs "no KV cache — full recompute per step").

### Changed
- Decode results updated for all 5 stages — GPT-2 2.30→5.52 tok/s, OPT
  3.98→5.05 tok/s, Phi-2 1.48 tok/s (new), Falcon 3.30 tok/s (new),
  LLaMA-LoRA 2.86 tok/s (new), Gemma-LoRA 2.40 tok/s (new), and more.

---

## [1.5.0] — 2026-06-30

### Added
- **`scripts/bench_decode.py`** — dedicated LLM decode benchmark measuring
  TTFT, prefill tok/s, and decode tok/s for all compiled causal LMs.
  Subprocess isolation + tt-smi health check prevent hardware lockups.
- **Leaderboard columns** — TTFT, Prefill tok/s, Decode tok/s, Params (M)
  replace the old Infer p50 / Throughput columns in `docs/leaderboard.html`.
- 5 benchmark stages: Stage 1 (GPT-2, OPT), Stage 2 (Phi-2, BLOOM, CodeGen),
  Stage 3 (Falcon, Allam, LLaMA-LoRA, Gemma-LoRA), Stage 4 (Qwen 2.5,
  Phi-1 LoRA), Stage 5 (DeepCogito, DeepSeek Coder, frontier models).
- `params_m` field added to all benchmarked bestiary entries.
- `hf:` loader prefix for frontier HuggingFace models loaded without a
  tt-forge-models seed loader.

### Changed
- Bestiary `throughput_unit` relabeled from generic `tok/s` → `prefill_tok/s`
  for all 54 causal LM entries to prevent confusion with decode throughput.

---

## [1.4.0] — 2026-06-29

### Added
- **`scripts/install.sh`** — turn-key smart installer: hardware pre-check,
  hugepages, disk space, forge venv, XLA venv, mesh descriptor probe,
  tt-forge-models clone, stale-shm cleanup. Outputs color-coded summary table.
- **RAM/DRAM budget calculator** — skips models whose weights exceed available
  system RAM + per-chip DRAM; prevents OOM crashes at load time.
- **`scripts/setup-venvs.sh`** — minimal venv setup script for clean Ubuntu
  24.04 installs on Tenstorrent Blackhole hardware.
- Self-contained patches directory — tt-forge-models fixes applied at
  expedition startup without modifying upstream.
- `--ephemeral` / `--evict-failures` flags — evict HF weight cache after
  each model to reclaim disk space on small-storage machines.

### Changed

# Changelog

All notable changes to tensix-viz are documented here.

## [1.2.1] - 2026-08-20

### Fixed

- **The chip grid is centered within its canvas** (`src/chip.js`, `_computeLayout`).
  `_cellW`/`_cellH` are floored, so `cols * _cellW` is usually smaller than the
  drawable width; drawing from a fixed top-left `pad` piled all that leftover on
  the right and bottom, making the grid look shoved toward the top-left corner
  (visible in small multi-chip layouts). `_padX`/`_padY` now split the leftover
  slack evenly — `max(pad, floor((w - cellW*cols) / 2))` — so the grid sits
  centered, never narrower than the base pad on any edge. 86 tests green.

- **Idle rendering no longer flickers and is frame-rate independent** (`src/chip.js`, `_drawHeatmap`, `activate()` idle).
  Heatmap normalization now uses a floored, slowly-decaying reference scale, and the idle decay/pop maths use elapsed time so behavior is consistent across refresh rates.
  slack evenly — `max(pad, floor((w - cellW*cols) / 2))` — so the grid sits
  centered, never narrower than the base pad on any edge. 86 tests green.

## [1.1.2] - 2026-06-29

### Fixed

- **`TensixViz.autoInit()` is idempotent for `.tensix-viz-container` elements** (`src/chip.js`)
  1.1.1 made the `[data-viz]` path idempotent but left the legacy single-chip path unguarded. When
  `autoInit()` ran twice (the bundle's self-init plus an explicit host-page call), each
  `.tensix-viz-container` canvas received a second `TensixViz` instance — two animation loops drawing
  on one canvas, which renders as a doubled/overlapping grid. `TensixViz.autoInit()` now skips any
  container already initialized (`container._tensixViz`) and records the instance on it.

### Added

- **Responsive multi-chip canvas** (`tensix-viz.css`)
  `.tv-chip-wrapper canvas { max-width: 100%; height: auto; }` — card/system canvases (created
  without the `.tensix-viz-canvas` class) now scale to fit a narrow column instead of being clipped
  by `.tv-card`'s overflow. Previously this rule had to be patched in by downstream consumers.

## [1.1.1] - 2026-06-25

### Fixed

- **Animation player accepts both script schemas** (`src/chip.js` `_execStep`)
  The player dispatched on `step.step` and read `step.cores` only, so scripts authored with the
  alternate `{ action, coords }` schema ran zero steps — the Play button (and auto-play) appeared
  dead. `_execStep` now dispatches on `step.step || step.action` and falls back `coords → cores`,
  so blocks written in either schema animate.

- **`autoInit()` is idempotent for `[data-viz]` elements** (`src/index.js`)
  `autoInit()` can run more than once (the bundle's self-init plus an explicit call). For `card`
  and `system` vizzes — which append their render into the host element — the second run appended
  a duplicate set of chips. `autoInit()` now skips any element already initialized (`el._tensixViz`).

## [1.1.0] - 2026-06-09

### Fixed

- **Heatmap: non-tensix cells no longer painted by heat overlay**

Booth — Changelog
=================

## Booth 0.6.0

### Runtime

- `kath run`, `kath build` and `kath doctor`, so one command builds a source
  and runs it on whatever device is there (Zane Hambly, 2026-09-14)

### Backends

- `--nvidia-cubin` writes a cubin the card will load, with no NVCC anywhere in
  the chain. All 67 of ggml-cuda's files now reach the IR
  (Zane Hambly, 2026-09-09)

### Frontend

- `constexpr` and `const` objects fold at every use, and anything the folder
  cannot evaluate refuses with E128 (Zane Hambly, 2026-09-03)

- class templates, specialisations, default template arguments and
  `enum class` parse, so 47 of ggml-cuda's 67 files reach the lowerer
  (Zane Hambly, 2026-09-04)

- the lowerer's tables no longer run out of room on a large translation unit,
  taking ggml-cuda's lowering errors from 774 to 210 (Zane Hambly, 2026-09-04)


## Booth 0.5.3

### Runtime

- #169: the runtime is split by where it runs, the `BC_ERR_*` codes no
  longer collide, and the examples and NVIDIA harness are built
  (Zane Hambly, 2026-08-23)


### Frontend

- variadic template parameter packs, several `.cu` files as separate
  translation units, `mma.sync` and `mfma` lowering, and an i1 that no
  longer strides by zero (Zane Hambly, 2026-09-03)

- `(a) + (b)` adds again; the parser treated any parenthesised identifier as a
  type name without asking whether it named one, so the left operand vanished
  into a cast with no diagnostic (Zane Hambly, 2026-09-03)

- the cast test is now the type name registry, so the registry has to be
  complete. Template type parameters, `using X = T` aliases and the type names
  sema resolves without a typedef (`size_t`, `uint32_t`, `float4` and the rest)
  all reach it. A compound literal through a typedef, `(pair){1, 2}`, parses
  for the first time, and `sizeof(name)` where the name is a type reads as a
  type rather than an expression (Zane Hambly, 2026-09-03)

- llama.cpp's ggml-cuda preprocesses, all 67 files; `#pragma once` is
  honoured, variadic and multi-line macro invocations expand, and an
  expansion too big for the output buffer is E053 rather than an
  unterminated buffer the lexer reads past (Zane Hambly, 2026-09-03)

- `kath --mlir` reads MLIR text, no LLVM in the path. Čertík's pure-C
  reader vendored under `src/mlir/vendor` (mlir 826b69c9, corec a160199d),
  reached only through `src/mlir/mlir_fe.c` (Zane Hambly, 2026-08-11)

- `src/mlir/lower.c` walks the parsed module into BIR: `func.func`, `return`,
  `arith.constant` and every arith binop, compare and conversion the reader
  classifies. From there it is the pipeline CUDA and Triton already use, and
  MLIR reaches all four backends. `--mlir --pp` reprints instead
  (Zane Hambly, 2026-08-11)

- an op outside the subset stops the lowering and names itself. Skipping it
  would leave a function that compiles and computes something else
  (Zane Hambly, 2026-08-11)

- five fixes to the vendored reader, all worth upstreaming, and four of them

# Changelog

All notable changes to the Tenstorrent Simulator Playground will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## [1.4.0] - 2026-01-27

### Added

- **Updated Demo Assets**
  - New digit recognition demo GIF with improved visualization

### Fixed

- **Docker Desktop Compatibility**
  - Fixed 500 Internal Server Error when running digit recognition in Docker containers
  - Implemented native Docker inference that runs Python directly instead of attempting WSL calls
  - Proper environment variable handling for containerized ttsim execution
  - Automatic SOC descriptor selection for Wormhole/Blackhole chips in Docker

## [1.3.0] - 2026-01-27

### Added

- **Enhanced Network Visualization**
  - 28×28 pixel grid visualization for input layer displaying the actual drawn digit
  - Vertical output column showing all 10 digit classes (0-9) with labels
  - Green ring highlight indicator for the predicted digit
  - Pixel data pass-through from drawing canvas to network visualization

### Changed

- **Performance Statistics Display**
  - Average throughput now displays with 2 decimal places for precision

## [1.2.0] - 2026-01-27

### Added

- **Digit Recognition Page**
  - Interactive drawing canvas for handwritten digit input (0-9)
  - Real-time MNIST neural network inference on Tenstorrent simulator
  - Network architecture visualization showing layer activations and connections
  - Performance statistics tracking (average latency and throughput)
  - Confidence display with horizontal bar chart for all 10 digit classes
  - Trained 2-layer MLP model (784→128→10) achieving ~98% accuracy
  - New digit recognition API endpoints (`/api/digit/predict`, `/api/digit/model-info`)

- **Simple 2-Layer MLP Operation**
  - Configurable neural network architecture editor
  - Interactive network diagram showing input, hidden, and output layers
  - Configurable sizes: input (32/64), hidden (32/64), output (16/32/64), batch (16/32/64)
  - Parameter count display with real-time updates
  - Visual representation of layer connections and ReLU activation

- **Matrix Multiplication Operation**
  - Support for 32×32 and 64×64 matrix operations
  - Optimized for TTNN performance benchmarking
  - Added matrix multiply icon to operation selector

- **React Router Integration**
  - Separate pages for Digit Recognition (/) and Mathematical Operations (/math-operations)
  - Clean URL structure with browser navigation support
  - Navigation sidebar with page links

### Changed

- **UI Redesign**
  - Non-collapsible sidebar with fixed width (256px) for better text display
  - Simplified branding: "TTSim Playground" with chip icon
  - Mathematical Operations page header now matches Digit Recognition style
  - Operation selector reorganized into 4×3 grid by category
  - Updated icons for subtract (circle with line) and matrix

# Changelog

Notable changes per release. Format loosely follows
[Keep a Changelog](https://keepachangelog.com/en/1.1.0/);
this project does not yet promise SemVer compatibility on the RPC
wire format or library API surface (we're not 1.0).

## Unreleased

V2 virtio-dispatch redesign. The kick ring + completion ring + host-
side throttle that grew up around #184 are gone; in their place is a
per-(slot, queue) dirty bitmap in BRISC L1. The bitmap is level-
sensitive — guest QUEUE_NOTIFY storms coalesce into a single set
byte, so the dispatch path can't fall behind under any burst. Wire
incompatible with 0.9.0; `TENSIX_PROTOCOL_VERSION` bumped 4 → 5.

### Added

- **V2 dirty-bitmap dispatch** (`#187` / `#188` / `#189`). BRISC
  writes 1 to `CTRL_OFF_DIRTY[slot][queue]` on every guest
  QUEUE_NOTIFY; the daemon's `Dispatcher` clears the byte and
  dispatches each pass. Replaces V1's 2048-entry kick ring +
  daemon-side `consume_kick_ring_pass` consumer.
- **V2 processed-cursor table** at `CTRL_OFF_PROCESSED`. Daemon
  publishes `used.idx` after each successful dispatch so
  warm-resume reads cursors directly without re-probing guest
  DRAM.
- **`bhx_notify_events_total`, `bhx_dispatch_passes_total`,
  `bhx_dispatch_queues_drained`** Prometheus counters surface the
  new dispatch path. The burst regression test (`scripts/
  soak_virtio_burst.py`) asserts `dispatch_passes_total > 0` to
  confirm the workload reached the new path.
- **`scripts/soak_virtio_burst.py`** — multi-queue burst regression
  test. Sustains 16-job direct=1 fio randwrite + a tight
  `printf` loop to `/dev/console`, samples `/metrics` every 1 s,
  and verifies the daemon log contains zero
  `kick.*drop|rescue|throttle.*ENGAGE` matches.
- **`DaemonState.chip_reset_this_session`** flag — gates
  `maybe_opportunistic_reset_board` so 4-way parallel cold boots
  reset the chip exactly once, not once per L2CPU. Without this
  the second-and-later resets blip the chip while earlier-booted
  L2CPUs hold mmap pages, SIGBUSing their workers.
- **`Dispatcher` (was `KickPoller`)** with documented testability
  seam (`CtrlL1Access` trait); `drain_dirty_bitmap` is unit-tested
  against an in-memory L1 fake covering all five visit/clear
  semantics cases plus the address-formula pins.

### Changed

- **`KickPoller` → `Dispatcher`**, plus `kick_poller` → `dispatcher`
  field on `DaemonState`, `tensix-kick-poller` → `tensix-dispatcher`
  thread name, `[kick-poller]` → `[dispatcher]` log tag,
  `kicks_consumed` → `dispatches_total`,
  `last_kick_slot_queue` → `last_dispatch_slot_queue`. Pure
  rename; no behavior change. V1 vocabulary scrubbed throughout
  the codebase (firmware, daemon, scripts, docs).
- **`CTRL_SIZE` shrinks 36 KiB → 4 KiB**. V2 footprint is ~1.5 KiB;
  the rest is reserved for future fields.
- **Stats-page offsets repacked** — V1 `STATS_OFF_KICK_DROPS`,
  `STATS_OFF_COMPL_EVENTS`, `STATS_OFF_LAST_COMPL` retired with
  V1 (#190); deprecated PRECAP / BLINDCAP / POSTCAP slots dropp

# Changelog

All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## [0.1.6] - 2025-01-14

### Added
- **Memory Configuration Support**: New command-line options for tensor memory configuration
- `--memory-config CONFIG`: General option with choices `[dram, l1]`
- `--dram`: Shortcut flag for DRAM memory (default)
- `--l1`: Shortcut flag for L1 memory
- Memory configuration extraction from CSV profiler output
- Memory config display in test result summaries

### Changed
- **Default tensor shape reduced from `[1, 1, 1024, 1024]` to `[1, 1, 32, 32]` for better performance**
- Enhanced `create_test_tensor()` function to accept memory_config parameter
- Updated all `ttnn.from_torch()` calls to use memory_config parameter
- Improved CSV extraction to read memory configuration from profiler output
- Enhanced debug output to show memory configuration

### Technical
- Added `validate_memory_config()` function with alias support
- Extended environment variable system with `TTPERF_CUSTOM_MEMORY_CONFIG`
- Updated operation_configs.json to include memory_config field
- Enhanced test file configuration parsing to handle memory settings
- Improved result reporting to include memory configuration details

## [0.1.4] - 2025-01-14

### Changed
- **Major Improvement**: Configuration extraction now reads from CSV profiler output instead of parsing text with regex
- Replaced 50+ complex regex patterns with structured CSV data parsing
- Enhanced `extract_test_config_and_status()` function to prioritize CSV data over text parsing
- Added new `extract_config_from_csv()` function for reliable configuration extraction

### Fixed
- More accurate shape, dtype, and layout detection from profiler results
- Improved reliability of configuration reporting in test summaries
- Better handling of tensor dimension parsing (e.g., "32[32]" format)

### Technical
- CSV-based extraction provides structured, consistent data vs. unreliable text parsing
- Maintains backward compatibility with text parsing as fallback
- Cleaner, more maintainable codebase with reduced complexity

## [0.1.0] - 2025-07-14

### Added
- Initial release of ttperf CLI tool
- Support for profiling TT-Metal tests with pytest
- Automatic CSV path extraction from profiler output
- Device kernel duration calculation
- Real-time output streaming
- Flexible command-line argument parsing
- Support for named profiles
- Comprehensive error handling

### Features
- Simple CLI interface: `ttperf [name] [pytest] <test_path>`
- Automatic detection of test files and paths
- Integration with TT-Metal profiler tools
- CSV parsing for performance metrics
- Real-time progress monitoring

### Dependencies
- pandas for CSV processing
- Python 3.7+ support
- TT-Metal development environment

## [Unreleased]

### Planned
- Enhanced error messages

##