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102 commits

Author SHA1 Message Date
U. I. I. Derbashi
000ca89301
Studio: Passing batch size for eval (#5168)
* add eval batch size

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2026-05-14 17:48:28 +04:00
Avaya Aggarwal
0c803242ef
feat(studio): add Continued Pretraining (CPT) as a training method (#4677)
* feat(studio): add Continued Pretraining (CPT) support

Implements CPT as a first-class training method in Unsloth Studio,
resolving feature request #4565.

Changes:
- frontend/src/types/training.ts: add 'cpt' to TrainingMethod union
- frontend/src/lib/vram.ts: add 'cpt' to VramTrainingMethod (fp16 footprint)
- frontend/src/features/export/constants.ts: add CPT to METHOD_LABELS
- frontend/src/features/training/api/mappers.ts: map 'cpt' -> 'Continued Pretraining',
  force packing=true and train_on_completions=false for CPT payloads
- frontend/src/features/studio/sections/model-section.tsx: add 'Continued Pretraining'
  option (purple dot) to Method selector; update tooltip
- frontend/src/features/onboarding/.../model-selection-step.tsx: add CPT to
  onboarding wizard method dropdown
- backend/models/training.py: update training_type field description
- backend/core/training/worker.py: detect is_cpt flag, force packing=True,
  train_on_completions=False, pass is_cpt to _train_worker
- backend/core/training/trainer.py: _train_worker reads is_cpt kwarg, forces
  packing on, skips train_on_responses_only for raw-text pretraining

CPT behaviour:
- Full model weights (no LoRA adapters), same as Full Finetuning
- Sequence packing always enabled for GPU efficiency
- Trains on every token (no chat-format masking)
- VRAM estimated at fp16 (2.0 bytes/param)

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* Update mappers.ts

* Add CPT raw dataset support and UI fixes

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* Add missing training methods module

* Handle invalid raw-text rows and expose raw in onboarding

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2026-05-06 13:38:35 +04:00
Wasim Yousef Said
e35cbfb454
Add native GGUF intake to Studio (#5246)
* feat(studio): add Tauri native GGUF intake

* feat(studio): polish native GGUF intake

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* fix(studio): load backend helpers during local setup

* fix(studio): acquire native load lease before unload

* Studio: harden native path lease verification and Tauri intake

- Wrap path.resolve(strict=True) and Path.stat() in NativePathLeaseError so a deleted or unmounted GGUF returns 400 instead of leaking the full filesystem path through the generic load_model/validate_model handler.
- Re-apply _reject_network_or_device_path to the resolved canonical path for defense in depth after symlink resolution.
- Replace try/except ValueError pattern in the device-path guard with Path.is_relative_to; the previous shape silently swallowed NativePathLeaseError (which subclasses ValueError) so /dev,/proc,/sys were never actually rejected.
- Broaden the lease redaction regex and dict-key check (Python and Rust diagnostics) to cover both native_path_lease and nativePathLease so the camelCase form emitted by Tauri/frontend payloads is also redacted.
- Hoist the redact_native_paths import to module top in loggers/handlers; the recursive filter no longer pays a per-record import lookup.
- Persist activeNativePathToken in the chat runtime store so the rollback branch can mint a fresh lease and reload the previous native GGUF when a new load fails after unload; clear it in clearCheckpoint and overwrite it on each successful load.
- use-native-drop: read options through a ref so the Tauri onDragDropEvent listener is registered once and stays attached across option changes; reject ambiguous multi-file drops up front instead of silently registering only the first GGUF.
- pick_native_model: use an async pick_file with a tokio oneshot channel instead of blocking_pick_file so the Tokio worker is not held for the duration of the OS dialog.
- registerNativeModelPath: drop the duplicate sourceKind argument; the Rust command parameter is source_kind.
- install_python_stack: insert the script directory (studio/) on sys.path; the previous insert pointed at studio/backend/ which does not satisfy `from backend.utils.wheel_utils import ...`.

* install_python_stack: keep _BACKEND_DIR on sys.path

Restore the studio/backend insertion. Although the immediately following `from backend.utils.wheel_utils import (...)` is satisfied by studio/ already being on sys.path[0] when invoked as `python studio/install_python_stack.py`, wheel_utils itself runs `from utils.native_path_leases import ...`, which requires studio/backend/ to be importable. Without the backend insertion, the existing tests/python/test_install_python_stack.py collection fails with ModuleNotFoundError: No module named 'utils'.

* Studio: tighten native path lease lifecycle and Tauri intake IPC

- register_native_model_path now hardcodes NativePathSourceKind::Drop on the Rust side and the frontend stops sending source_kind. The previous JS payload (source_kind only) never reached the Rust deserializer because Tauri's default ArgumentCase::Camel maps the Rust parameter source_kind to the JS key sourceKind, so drag/drop registration silently failed. Hardcoding the source kind also keeps audit metadata trustworthy on this command.
- Add native_path_secret_removed_for_child_start context manager and wrap multiprocessing.Process.start() at the inference, export, training, and data-recipe job spawn sites. The previous wrapper-only scrub left UNSLOTH_STUDIO_NATIVE_PATH_LEASE_SECRET visible to spawn-platform import-time worker code. The wrapper run_without_native_path_secret stays as defense-in-depth inside the child.
- Stop passing exc_info=True from the native-grant load/validate error logs in routes/inference.py. The structlog filter_sensitive_data processor runs before the renderer, so ConsoleRenderer formatted tracebacks bypassed redaction; the redacted str(e) preserves the message text.
- Replace the os.path.normcase string equality on the resolved canonical path with Path.samefile (with a normcase fallback) so Windows leases that differ only in extended-length \\?\ prefix or short-name spelling are accepted.
- Wrap consumeNativePathToken in its own try/catch in the chat runtime rollback. If the previous native-model token has aged out of TOKEN_TTL we now surface a clear modelsError instead of silently swallowing the rollback inside the outer catch.
- Reject non-ASCII lease strings in _split_lease and convert UnicodeEncodeError / binascii.Error / ValueError raised by _b64decode into NativePathLeaseError so verify_native_path_lease never escapes raw exceptions to the route handler.
- Tighten dropStateForPaths to mark multi-file payloads invalid so the overlay matches the post-fix drop handler that rejects the same payload.
- Replace the one-shot fetch in useNativePathLeasesSupported with a delayed-retry loop so the picker/drop becomes available once the backend is up rather than staying disabled for the rest of the session after a transient failure.
- Drop the unused setActiveNativePathToken setter; the value is set via setState directly in use-chat-model-runtime.
- Add a toast on auto-load failure in use-native-drop so a collapsed model selector does not hide the error.
- Burn the lease nonce before _validate_current_stat so a stat-failed lease is single-use even if a later state change happens to match the original size/mtime.

* Studio: cache lease secret, harden native path stat checks, polish intake UX

- Cache the decoded UNSLOTH_STUDIO_NATIVE_PATH_LEASE_SECRET on first verify and validate that it is base64-decodable and at least 32 bytes. Subsequent _decode_secret calls return from the cache and never touch os.environ, so concurrent /api/inference/load and /api/health requests no longer race with native_path_secret_removed_for_child_start scrubbing the env. native_path_leases_supported now wraps _decode_secret so the health flag matches what verify_native_path_lease actually accepts.
- Replace path.is_file()/is_dir() + path.stat() with os.lstat() in _validate_current_stat and explicitly reject S_ISLNK; size and mtime checks now refer to the link itself, closing the same-size+same-mtime symlink-swap window that the prior follow-symlink stat() left open.
- Add an issued_at_ms < expires_at_ms sanity check in _validate_payload to reject internally inconsistent (HMAC-protected) lease payloads.
- Sort _NATIVE_PATH_REDACTIONS by length (descending) before iterating in redact_native_paths so a longer registered path is replaced before a shorter prefix path; otherwise logs containing /foo/X.gguf.bak after only /foo/X.gguf was registered would leak the .bak suffix.
- classify_existing_path now re-checks the canonical path with symlink_metadata after canonicalize, so a regular file that is replaced with a symlink in the small canonicalize window is rejected at registration.
- ModelSelector renders the local file picker as its own block (not in the eject ternary), so a user with an active model can still replace it via the picker rather than only via drag/drop.
- useNativePathLeasesSupported caps the readiness probe at MAX_READINESS_POLLS (60 = ~5 minutes) and aborts the in-flight fetch on unmount via AbortController, so a permanently-disabled backend stops generating sustained traffic and hot-reload no longer leaks open connections.
- useChooseNativeModel returns a stable useCallback closure and guards the OS dialog with a useRef so rapid double-clicks cannot open multiple dialogs and orphan Rust tokens.
- Branch the multi-file drop toast: if no GGUF was present we say "Only .gguf model files can be dropped here." and otherwise "Drop a single .gguf model file." so users dropping non-GGUF attachments get an accurate explanation.

* native_path_leases: lstat the signed canonical path before resolving

The earlier change to lstat inside _validate_current_stat operates on grant.canonical_path, which is the post-resolve target. If the user atomically replaces the originally-signed file with a symlink to a different file of identical size and mtime, path.resolve(strict=True) follows the symlink, samefile returns True (both ends share the new inode), and the lstat in _validate_current_stat sees the regular target file rather than the symlink, so the swap goes undetected.

Add an os.lstat on the signed canonical path before path.resolve(strict=True), and reject S_ISLNK there. The lstat in _validate_current_stat stays as defense-in-depth for swaps that occur strictly between resolve and stat.

* Studio: scrub native lease secret before mp.Queue spawn and tighten lease lifecycle

- Move _CTX.Queue / _CTX.Event / _CTX.Process construction inside native_path_secret_removed_for_child_start at the inference, export, training and data-recipe spawn sites. The first Queue creation lazily spawns Python's multiprocessing.resource_tracker child, so when it ran outside the scrub context the tracker process inherited the lease secret. Reproduced via the proc filesystem environ entry; the wrapped order keeps the tracker clean.
- native_path_secret_removed_for_child_start now refcounts entries: the env var is popped on the first entry and restored only when the last context exits. Concurrent training/inference/export starts no longer serialize on the env lock across the entire proc.start yield, while still guaranteeing the env stays empty for the duration of every overlapping spawn.
- run_without_native_path_secret now also nulls the module-level cached lease secret. With the existing spawn-only multiprocessing context the cache is irrelevant in practice, but a future fork caller would otherwise inherit the in-memory secret even though the env var was scrubbed.
- filter_sensitive_data now applies the native lease key check on the top-level event_dict, not only on nested dicts, so a logger call that includes a lease value as a top-level keyword field actually redacts it (the bare value does not match the prefix-anchored regex).
- chat-page loadNativeModelIntent now passes intent.id to clearModelIntent so a second drag-drop during an in-flight first auto-load is not wiped from the chip area when the first resolves.
- Bump useNativePathLeasesSupported's MAX_READINESS_POLLS from 60 to 720 so first-run installs that compile llama.cpp from source or download large CUDA wheels (well past 5 minutes) don't permanently disable the native picker.

* native_path_leases: serialize first-decode against scrub context

_decode_secret used a separate _SECRET_INIT_LOCK from the env scrub's _NATIVE_PATH_ENV_LOCK, so the very first decode (before the cache is populated) could race a concurrent native_path_secret_removed_for_child_start and read os.environ during the env-empty window, raising "Native path grants require the managed desktop backend." Subsequent calls hit the cache and were already safe.

Acquire _NATIVE_PATH_ENV_LOCK around the env read inside _SECRET_INIT_LOCK and fall back to _SCRUB_SAVED_SECRET when the scrub has temporarily popped the env var. Lock ordering (init then env) is consistent with no other caller, so no deadlock.

* Studio: surface native model load errors and harden native path label cache

- Native model load and validate now bubble up the actual exception (with
  paths redacted) and apply the same friendly-error rewrite the non-native
  path uses, so users see "CUDA OOM", "trust_remote_code required", etc.
  instead of a generic "Failed to load native model: <label>".
- run_without_native_path_secret now also nulls _SCRUB_SAVED_SECRET so a
  forked grandchild that imports native_path_leases cannot recover the
  secret via the scrub-aware fallback in _decode_secret.
- _NATIVE_PATH_LABELS now has its own 10000-entry cap independent of the
  100-entry redaction list, so display_label_for_native_path no longer
  falls back to returning the raw canonical path after 101 native paths
  in one session. Redaction list keeps the 100-entry cap for log-scan
  performance.
- _validate_payload now also rejects null bytes in display_label, which
  is echoed back in HTTP responses and log lines.

* Studio: harden native path lease validation and chained native rollback

- child_env_without_native_path_secret now copies os.environ under
  _NATIVE_PATH_ENV_LOCK so a concurrent scrub-context env pop cannot
  raise RuntimeError: dictionary changed size during iteration in a
  background hardware scan or other env reader.
- _validate_payload and grant construction route every signed numeric
  field (version, issued_at_ms, expires_at_ms, size_bytes, modified_ms)
  through new _required_int / _optional_int helpers that wrap raw int()
  ValueError into NativePathLeaseError. The single upstream catcher
  produces 400 instead of 500 for malformed signed payloads.
- verify_native_path_lease now runs _validate_current_stat before
  _consume_nonce, so a transient stat error on the canonical path no
  longer permanently burns the nonce. Concurrent verifies still
  serialize through _consume_nonce, so single-use is preserved.
- Chained native model rollback now restores activeNativePathToken in
  the chat runtime store after a successful rollback loadModel. Without
  this, a second consecutive failed switch could not re-roll-back
  because the store token had been overwritten by the failed attempt.
- validate_model now applies the same not_supported_hints friendly
  rewrite to native model errors that load_model already does, so a
  native .gguf that fails validation with an upstream "is not supported"
  message gets the same actionable wording as the non-native branch.

* Studio: harden native path log redaction, status disclosure, and chip lifecycle

- structlog processor chain now runs format_exc_info before
  filter_sensitive_data so traceback strings are produced (and then
  redacted) rather than passed through as untouched (type, value, tb)
  tuples that the JSON or console renderer formats after the redaction
  filter has already finished.
- native_path_secret_removed_for_child_start clears _CACHED_LEASE_SECRET
  in addition to popping the env var, so a fork during the scrub window
  cannot inherit the cached bytes via the parent's heap. Parent verify
  calls during the window keep working through the existing scrub-aware
  fallback in _decode_secret.
- load_model's except ValueError handler now redacts native paths and
  uses the native model log label when native_grant_backed is true.
  Previously a ValueError raised after lease verification (e.g. from
  ModelConfig.from_identifier or downstream GGUF parsing) returned the
  raw exception string in the HTTP response body.
- llama_cpp_backend now records the native display label at GGUF load
  time, and /api/inference/status prefers it over the redaction store.
  After a Python backend restart the redaction store is empty; the
  attribute keeps the friendly label, and an absolute model_identifier
  with no other label source falls back to the basename so the canonical
  path no longer appears in active_model.
- reveal_path_token uses native "reveal and select" commands on macOS
  (open -R) and Windows (explorer /select,) so the file is highlighted
  in the file manager. Linux keeps the existing parent-directory open.
- Native model rollback that fails because the previous token cannot be
  consumed now throws a rollback-specific Error, and the outer empty
  catch was replaced with one that re-throws the rollback error. The
  rollback-specific message now reaches the user instead of being
  overwritten by the original load error message.
- NativeModelChip tracks the Rust token's expiresAtMs on a single
  setTimeout, disables the Load button at expiry, and relabels it
  "Select again" with an explanatory tooltip so users do not click into
  a guaranteed-failure path after the 15-minute TTL elapses.

* Studio: tighten native artifact policy, mmproj sibling check, and intake UX

- is_open_safe_artifact no longer grants Open for directories. Reveal
  already handles directory navigation, so the change closes the
  attack surface where a macOS .app artifact could be launched via
  open_path_token + open::that_detached.
- Display labels are sanitized in classify_existing_path. Control
  characters in filenames (newlines, tabs, NUL et al.) are replaced
  with spaces and the label is trimmed and capped, so a file named
  with embedded newlines cannot inject forged log lines or scramble
  the UI status panel.
- validate_entry_path skips the size_bytes/modified_ms equality check
  when the operation is Reveal or Open. Cloud-sync agents (Dropbox,
  iCloud Drive, OneDrive) routinely rewrite extended-attribute
  metadata which bumps mtime, and the user expects Reveal/Open to
  remain available for files in synced folders.
- llama_cpp_backend gains a _native_grant_backed flag at GGUF load
  success. /api/inference/status only applies the absolute-path
  basename fallback when that flag is true, so a non-native absolute
  local GGUF still reports its canonical model_identifier and unload
  by identifier keeps working.
- Native vision GGUFs now run through _validate_native_mmproj_companion
  before llama-server starts: the companion mmproj must be a regular
  file, not a symlink, and must live in the same resolved directory as
  the granted GGUF. This stops a hostile sibling or symlinked mmproj
  from being loaded under a single-file lease.
- Chained native rollback restructured: the rollback loadModel + state
  + refresh runs inside its own try/catch that swallows so the outer
  throw error surfaces the ORIGINAL load failure. The native-token
  consume-failure case still throws the rollback-specific message
  early, before the inner block runs, so its actionable guidance is
  preserved.
- Loading-model state and the duplicate-load guard in the chat runtime
  hook now compare both the model id and the native path token. Two
  drops or picks with the same basename in different folders no longer
  silently dedup; the second token is honored.
- chat-page loadNativeModelIntent awaits selectModel before clearing
  the pending intent. If selectModel returns early via dedup or
  throws, the chip and its token stay so the user can retry instead
  of losing the selection.
- NativeModelChip's Reveal button is disabled when the lease has
  expired (Rust would reject it anyway), and the Load button label
  reads "Expired" instead of "Select again" so the disabled element
  no longer promises an action it cannot perform.

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2026-05-04 11:46:18 +02:00
Lee Jackson
2de17c0a96
Studio: Add checkpoint resume for stopped training runs (#5255)
* feat: add checkpoint resume for stopped training runs

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* fix:add resume checkpoint helpers

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* fix: use checkpoint parent as resume output dir

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* fix: save optimizer and scheduler state on stop-and-save

Use Trainer._save_checkpoint instead of save_state so resume restores
optimizer momentum and LR-schedule position via the checkpoint-NNN/
subdir written by HF's official path.

* fix: clean up resume training history and startup progress

* fix: preserve resume output dirs

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* fix: tighten resume run lookup

* fix: remove stale output-dir lookup

* fix: preserve startup download progress

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Co-authored-by: Roland Tannous <115670425+rolandtannous@users.noreply.github.com>
2026-05-04 00:34:46 +04:00
Wasim Yousef Said
a5eb2e3d50
Add tauri (#5144)
* add unsloth studio desktop app

* Fix review findings

- studio/src-tauri/tauri.conf.json: retarget updater to staging repo
  (danielhanchen/unsloth-staging-2); switch to unslothai/unsloth on upstream merge.
- studio/src-tauri/linux/postremove.sh: drop the interactive read loop and the
  /home/* iteration. Package maintainer scripts must stay non-interactive and
  must not touch other users' data.
- studio/frontend/src/app/auth-guards.ts: honor tauriAutoAuth() boolean. Failed
  auto-auth now redirects to /login; requireGuest/requirePasswordChangeFlow
  only redirect to /chat when auth succeeds. The new early-return on failed
  auth is intentional so the login / change-password flows remain reachable
  when desktop auth is not yet established.
- studio/frontend/src/config/env.ts: keep fetched=false on health failure so
  later calls retry instead of caching the client-side platform guess.
- studio/src-tauri/src/install.rs: pick the available system package manager
  (apt-get, dnf, zypper, pacman); AppImage bundles run on non-Debian distros.
- studio/frontend/src/lib/open-link.ts + markdown-text/sources callers: return
  boolean from openLink so callers only preventDefault on handled URLs; relative
  hrefs now navigate natively.
- studio/frontend/src/features/settings/tabs/about-tab.tsx: fetch(apiUrl(...))
  so the version request targets the backend port in desktop mode. The bare
  /api/health predates the Tauri webview (blame: the earlier onboarding commit,
  which ran with same-origin frontend/backend); in desktop mode the webview
  origin is tauri://localhost so the bare path fails.
- install.ps1: gate the install_python_stack.py hotfix on a sentinel comment
  instead of a content regex; append the sentinel after applying so reruns
  are unambiguous.
- unsloth_cli/commands/studio.py _write_auth_secret: use the atomic mkstemp +
  os.replace path on Windows too; chmod calls are wrapped in try/except OSError.
- studio/src-tauri/src/preflight.rs probe_existing_backends: fan out the health
  probes concurrently; desktop-auth status still runs sequentially per candidate.
  reqwest::Client is internally Arc-wrapped so the in-loop .clone() is a
  refcount bump, not a deep clone; annotated inline.
- studio/src-tauri/src/preflight.rs run_cli_probe: wait() after kill() to reap
  the child, matching probe_cli_capability.
- studio/src-tauri/src/process.rs + main.rs: add stop_backend_detached and use
  it from the tray quit handler so the 5s graceful-wait does not block the
  Tauri main loop. RunEvent::Exit keeps the synchronous safety-net call.
- studio/backend/main.py: drop the permissive localhost CORS regex in
  api-only mode; the explicit allow_origins list is sufficient.
- .github/workflows/release-desktop.yml: drop max-parallel: 1 so platform
  builds run in parallel, and lift releaseBody to an env var so the three
  tauri-action invocations share one source of truth.

* Fix review findings (loop 2)

- studio/backend/auth/storage.py update_password: clear_desktop_secret()
  alongside clear_bootstrap_password() so rotating the admin password
  also revokes any previously provisioned .desktop_secret. Without this,
  an old local desktop credential keeps minting fresh admin tokens via
  /api/auth/desktop-login after a password rotation.
- studio/src-tauri/src/desktop_auth.rs provision_desktop_auth: wrap
  cmd.output().await in tokio::time::timeout(30s). DESKTOP_AUTH_LOCK is
  held across the whole desktop_auth flow, and previously a hanging
  `unsloth studio provision-desktop-auth` subprocess would pin the lock
  indefinitely and freeze every subsequent desktop_auth call.

* Add review tests

* Consolidate review tests

Merge review-added tests into the existing studio/backend/tests/test_desktop_auth.py
(the PR's authoritative desktop-auth test file). Drops three scaffolding files under
tests/python/ in favor of five focused tests next to the tests they extend:
- test_update_password_clears_desktop_secret (runtime)
- test_update_password_on_unknown_user_leaves_desktop_secret_intact (runtime)
- test_cli_provisioning_delegates_to_storage_create_desktop_secret (source-level)
- test_cli_connect_auth_db_reads_storage_db_path (source-level)
- test_desktop_auth_provision_has_bounded_timeout (Rust source-level)

* Revert auth-guards.ts Tauri branches to unconditional form

The review loop on PR 5144 introduced a regression: the isTauri branch of
requireAuth redirected to /login when tauriAutoAuth() returned false, and
requireGuest / requirePasswordChangeFlow silently fell through on the same
condition. The Tauri desktop app authenticates via a local auto-generated
secret; it must never surface /login or /change-password to the user. A
failed auto-auth should let the startup layer retry, not expose a password
form.

Restore the three Tauri branches to the author's original unconditional
form (requireAuth: return; requireGuest / requirePasswordChangeFlow: throw
redirect({to: '/chat'})). Keep the rest of the review fixes -- the
apiUrl() fetch wrapping, authRedirect helper, and fetchAuthStatus refactor
are all legitimate improvements and are preserved.

* Revert release-desktop.yml to author's version

The review loop's workflow-file tweaks (drop max-parallel: 1, lift releaseBody
to an env var) are cosmetic. OAuth tokens cannot push workflow-file changes,
and fine-grained PATs cannot honor maintainerCanModify on a third-party fork.
Reverting the workflow file to wasimysaid's version lets the push go through
without needing a classic PAT with both repo and workflow scopes.

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Co-authored-by: Lee Jackson <130007945+Imagineer99@users.noreply.github.com>
Co-authored-by: Daniel Han <danielhanchen@gmail.com>
Co-authored-by: Daniel Han <unslothai@gmail.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2026-04-23 04:50:10 -07:00
Roland Tannous
278f462996
[Studio][Optimization]Add vision detection cache to is_vision_model() (#4853)
* Add vision detection cache to is_vision_model() to avoid redundant subprocess spawns

is_vision_model() is called 4-5 times per training run for the same model
with zero caching. For transformers 5.x models, each call spawns a full
subprocess (~6s each). This adds a module-level _vision_detection_cache dict
following the same pattern as the existing _audio_detection_cache used by
detect_audio_type(). The function is refactored into a thin cache wrapper
around _is_vision_model_uncached(), saving ~12s per training run.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Include hf_token in vision cache key for gated model correctness

Cache key is now (model_name, hf_token) instead of just model_name.
This prevents stale False results when an unauthenticated probe for a
gated model is followed by an authenticated call.

* Remove test file from main PR - will be submitted separately

* Fix vision cache: normalize model names and skip caching transient failures

- Normalize model names in cache key using resolve_cached_repo_id_case()
  to avoid duplicate entries for different casings of the same HF repo
  (aligns with case normalization from #4822)
- Return None instead of False on transient failures (network errors,
  subprocess timeouts, HF API issues) so the cache layer can distinguish
  "definitely not a vision model" from "failed to check"
- Only cache definitive True/False results; transient failures are retried
  on the next call instead of being permanently locked in as False

* Refine failure handling: cache deterministic failures, guard normalization

- Subprocess non-zero exit, JSON errors, and general exceptions return
  False (deterministic, cached) instead of None (retryable). Only
  subprocess.TimeoutExpired returns None since timeouts are transient.
- Wrap cache key normalization in try/except so resolve_cached_repo_id_case
  or normalize_path failures fall back to raw model_name instead of
  crashing callers.

* Harden vision detection cache: fix transient failure handling, thread safety, token security

- All subprocess failure paths now return None (transient) instead of False,
  preventing permanent misclassification of VLMs after temporary HF/auth/network errors
- Use SHA256 fingerprint for hf_token in cache key instead of raw bearer token
- Add threading.Lock with double-checked locking to prevent thundering herd
  of concurrent subprocess spawns for the same uncached model
- Distinguish permanent failures (RepositoryNotFoundError, GatedRepoError,
  ValueError) from transient ones in _is_vision_model_uncached
- Pass resolved/normalized model name to detection (not just cache key)
- Log normalization fallback at debug level instead of silent swallow
- Thread hf_token through callers in routes/models.py and trainer.py
  that previously omitted it

* Refine lock strategy and token fingerprint

- Move detection computation outside the lock to avoid serializing
  long-running subprocess spawns (60s timeout) and HF API calls across
  all concurrent model checks. Lock is now only held for cache writes.
- Use full SHA256 digest for token fingerprint instead of truncated
  16-char prefix to eliminate collision risk.

* Fix huggingface_hub import fallback and use atomic cache read

- Add fallback import path for RepositoryNotFoundError/GatedRepoError
  from huggingface_hub.utils (older hub versions) when .errors is
  not available
- Use sentinel-based dict.get() for single atomic cache read instead
  of two-step in/[] pattern (future-proof for no-GIL runtimes)

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Co-authored-by: Daniel Han <danielhanchen@gmail.com>
2026-04-06 06:41:20 -07:00
Daniel Han
e164c930ff
fix(studio): correct default weight_decay and learning rate (#4695)
* fix(studio): change default weight_decay from 0.01 to 0.001

The default weight decay across Studio was 0.01 but should be 0.001.
Updated the default in all backend fallbacks, the Pydantic model, the
frontend config, and every YAML preset/model-default config.

* fix(studio): auto-set learning rate based on training method

Default LR should be 2e-4 for LoRA/QLoRA and 2e-5 for full fine-tuning.

Frontend: track whether the user has manually edited the LR field via a
_learningRateManuallySet flag (same pattern as trainOnCompletions).
When switching training method and the user has not touched the LR,
auto-set it to the appropriate default. Reset the flag on model load.

Backend: change trainer.py start_training default from 5e-5 to 2e-4,
update default.yaml fallback from 5e-5 to 2e-4, and fix
full_finetune.yaml from 0.0002 (2e-4) to 2e-5.

* refactor(studio): centralize weight_decay and learning rate defaults

Create studio/backend/core/training/constants.py as the single source of
truth for DEFAULT_WEIGHT_DECAY (0.001), DEFAULT_LEARNING_RATE (2e-4),
DEFAULT_LEARNING_RATE_FULL (2e-5), and DEFAULT_LEARNING_RATE_STR ("2e-4").

All backend modules (trainer.py, training.py, worker.py, models/training.py)
now import from constants.py instead of hardcoding values.

On the frontend, add LR_DEFAULT_LORA and LR_DEFAULT_FULL to
config/training.ts and use them in the store instead of magic numbers.
A comment cross-references the backend constants file.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Fix model-specific LR override, persist migration, and flag resets

- Preserve model-specific learning rates from YAML configs when the
  async autoSelectTrainingMethod callback fires (fixes Qwen2.5-1.5B
  getting 2e-4 instead of its configured 1e-5, etc.)
- Bump zustand persist version to 9 with migration so existing users
  with weightDecay=0.01 get updated to 0.001
- Clear _learningRateManuallySet in reset() and applyConfigPatch()
  for consistency with trainOnCompletions flag behavior
- Add DEFAULT_LEARNING_RATE_FULL_STR to constants.py

* Refine applyConfigPatch to only clear LR flag when patch includes LR

Only reset _learningRateManuallySet when the applied config patch
actually provides a learningRate value. This prevents unrelated config
patches from silently disarming the manual-edit guard, which would
cause a subsequent setTrainingMethod call to overwrite the user's
custom LR.

* Preserve model-specific LR when switching between qlora and lora

Only auto-switch the learning rate when the training category changes
(adapter <-> full fine-tuning). Switching between qlora and lora keeps
the current LR since both methods share the same learning rate range.
This preserves curated per-model defaults (e.g. 1e-5 for
Qwen2.5-1.5B-Instruct) when the user toggles between adapter methods.

* Remove constants.py, use YAML configs as the source of truth

The YAML config files (model-specific + default.yaml) are the intended
config layer for training defaults. The Python backend fallbacks now use
inline values that match the YAML configs, rather than importing from a
separate constants module. This keeps the config architecture simple:
YAML files are the single source of truth, and the inline Python
fallbacks are just safety nets that mirror them.

* fix(studio): preserve model-specific LR when switching training method

Stash YAML-provided learning rate and use it to restore the correct
value when switching between adapter and full fine-tune modes.

- qlora <-> lora no longer overwrites the model's LR
- full -> adapter restores the YAML LR instead of a hardcoded constant
- selecting a model while on full fine-tune uses LR_DEFAULT_FULL
  instead of applying the YAML adapter LR

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Co-authored-by: Daniel Han <danielhanchen@users.noreply.github.com>
Co-authored-by: Roland Tannous <rolandtannous@gravityq.ai>
2026-03-31 13:50:25 +04:00
Datta Nimmaturi
9311df2b29
[Studio] multi gpu finetuning/inference via "balanced_low0/sequential" device_map (#4602)
* [WIP] balanced device map for studio

* gpus as a request parameter

* API for multi GPU stuff

* return multi gpu util in new API

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* Use balanced_low0 instead of balanced

* Use balanced_low0 instead of balanced

* Fix device_map typo, UUID parsing crash, set() filter bug, and broken tests

- balanced_low0 -> balanced_low_0 (transformers/accelerate rejects the old string)
- get_parent_visible_gpu_ids() now handles UUID/MIG CUDA_VISIBLE_DEVICES
  gracefully instead of crashing on int() parse
- _get_backend_visible_gpu_info() set() or None bug: empty set is falsy so
  CUDA_VISIBLE_DEVICES=-1 would disable filtering and report all GPUs
- test_gpu_selection.py: add missing get_visible_gpu_utilization import and
  add required job_id arg to start_training() calls

* Smart GPU determinism using estimates

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* disallow gpu selection for gguf for now

* cleanup

* Slightly larger baseline

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* Treat empty list as auto

* Verbose logging/debug

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Cleanup and revert unnecessary deletions

* Cleanup excessive logs and guard against disk/cpu offload

* auth for visibility API. cleanup redundant imports. Adjust QLoRA estimate

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* support for non cuda gpus

* Fix multi-GPU auto-selection memory accounting

The multi_gpu_factor was applied uniformly to all GPUs including the
first one, which unfairly penalizes single-GPU capacity when
transitioning to multi-GPU. This created a discontinuity where a model
that barely fits 1 GPU would suddenly require 2 GPUs because the first
GPU's free memory was discounted by 20%.

Now the first GPU keeps its full free memory, and only additional GPUs
have an overhead factor (0.85) applied to account for inter-GPU
communication and sharding overhead. This gives more accurate
auto-selection and avoids unnecessary multi-GPU for models that
comfortably fit on one device.

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* Add sandbox tests for multi-GPU selection logic

24 tests covering model size estimation, memory requirements, automatic
GPU selection, device map generation, GPU ID validation, and multi-GPU
overhead accounting. All tests use mocks so they run without GPUs on
Linux, macOS, and Windows.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Fix reviewer findings: 4bit inference estimate, fallback, GGUF gpu_ids, retry

1. 4-bit inference now uses reduced memory estimate (model_size/3 + buffer)
   instead of the FP16 1.3x multiplier. This prevents over-sharding
   quantized models across unnecessary GPUs.

2. When model size estimation fails, auto_select_gpu_ids now falls back to
   all visible GPUs instead of returning None (which could default to
   single-GPU loading for an unknown-size model).

3. GGUF inference route now treats gpu_ids=[] as auto-selection (same as
   None) instead of rejecting it as an unsupported explicit request.

4. Training retry path for "could not get source code" now preserves the
   gpu_ids parameter so the retry lands on the same GPUs.

5. Updated sandbox tests to cover the new 4-bit inference estimate branch.

* Remove accidentally added unsloth-zoo submodule

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Fix UUID/MIG visibility and update test expectations

1. nvidia.py: When CUDA_VISIBLE_DEVICES uses UUID/MIG tokens, the
   visibility APIs now return "unresolved" with empty device lists instead
   of exposing all physical GPUs. This prevents the UI from showing GPUs
   that the backend process cannot actually use.

2. test_gpu_selection.py: Updated test expectations to match the new
   multi-GPU overhead accounting (first GPU at full capacity, 0.85x for
   additional GPUs) and 4-bit inference memory estimation formula.
   All 60 tests now pass.

* Add CPU/disk offload guard to audio inference path

The audio model loading branch returned before the common
get_offloaded_device_map_entries() check, so audio models loaded with a
multi-GPU device_map that spilled layers to CPU/disk would be accepted
instead of rejected. Now audio loads also verify no modules are offloaded.

* Improve VRAM requirement estimates

* Replace balanced_low_0 with balanced

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* refine calculations for slightly easier nums

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* adjust estimates

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Use nums instead of obj to avoid seralisation error

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Harden nvidia-smi parsing and fix fallback GPU list

1. nvidia.py: Wrap int() casts for GPU index and memory in try/except
   so MIG slices, N/A values, or unexpected nvidia-smi output skip the
   unparseable row instead of aborting the entire GPU list.

2. nvidia.py: Handle GPU names containing commas by using the last
   field as memory instead of a fixed positional index.

3. hardware.py: fallback_all now uses gpu_candidates (GPUs with verified
   VRAM data) instead of raw devices list, which could include GPUs
   with null VRAM that were excluded from the ranking.

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* cleanup

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* consolidate raise_if_offload

* Improve MoE support. Guard against nvidia-smi failures

* Improve MoE support. Guard against nvidia-smi failures

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Fix shared-expert LoRA undercount, torch VRAM fallback, and apply_gpu_ids edge case

1. vram_estimation.py: compute_lora_params now includes shared experts
   (n_shared_experts) alongside routed experts when computing MoE LoRA
   adapter parameters. Previously only n_experts were counted, causing
   the estimator to undercount adapter, optimizer, and gradient memory
   for DeepSeek/GLM-style models with shared experts.

2. hardware.py: _torch_get_per_device_info now uses mem_get_info (which
   reports system-wide VRAM usage) instead of memory_allocated (which
   only reports this process's PyTorch allocations). This prevents
   auto-selection from treating a GPU as mostly free when another
   process is consuming VRAM. Falls back to memory_allocated when
   mem_get_info is unavailable.

3. hardware.py: apply_gpu_ids([]) now returns early instead of setting
   CUDA_VISIBLE_DEVICES="" which would disable CUDA entirely. Empty
   list inherits the parent visibility, same as None.

4. hardware.py: Upgraded fallback_all GPU selection log from debug to
   warning so operators are notified when the model likely will not fit
   in available VRAM.

* Guard nvidia-smi subprocess calls against OSError and TimeoutExpired

get_visible_gpu_utilization and get_backend_visible_gpu_info now catch
OSError (nvidia-smi not found) and TimeoutExpired internally instead
of relying on callers to wrap every invocation. Returns the standard
available=False sentinel on failure so the torch-based fallback in
hardware.py can take over.

* Guard get_primary_gpu_utilization and reset GPU caches between tests

1. nvidia.py: get_primary_gpu_utilization now catches OSError and
   TimeoutExpired internally, matching the pattern already used in
   get_visible_gpu_utilization and get_backend_visible_gpu_info. All
   three nvidia-smi callers are now self-contained.

2. test_gpu_selection.py: Added _GpuCacheResetMixin that resets the
   module-level _physical_gpu_count and _visible_gpu_count caches in
   tearDown. Applied to all test classes that exercise GPU selection,
   device map, or visibility functions. This prevents stale cache
   values from leaking between tests and causing flaky results on
   machines with real GPUs.

* Fix nvidia-smi fallback regression and physical GPU count validation

1. hardware.py: get_gpu_utilization, get_visible_gpu_utilization, and
   get_backend_visible_gpu_info now check result.get("available") before
   returning the nvidia-smi result. When nvidia-smi is unavailable or
   returns no data (e.g., containers without nvidia-smi, UUID/MIG masks),
   the functions fall through to the torch-based fallback instead of
   returning an empty result. This fixes a regression where the internal
   exception handling in nvidia.py prevented the caller's except block
   from triggering the fallback.

2. hardware.py: resolve_requested_gpu_ids now separates negative-ID
   validation from physical upper-bound validation. The physical count
   check is only enforced when it is plausibly a true physical count
   (i.e., higher than the largest parent-visible ID), since
   torch.cuda.device_count() under CUDA_VISIBLE_DEVICES returns the
   visible count, not the physical total. The parent-visible-set check
   remains authoritative in all cases. This prevents valid physical IDs
   like [2, 3] from being rejected as "out of range" when nvidia-smi is
   unavailable and CUDA_VISIBLE_DEVICES="2,3" makes torch report only
   2 devices.

* Fix UUID/MIG torch fallback to enumerate devices by ordinal

When CUDA_VISIBLE_DEVICES uses UUID or MIG identifiers,
get_parent_visible_gpu_ids() returns [] because the tokens are
non-numeric. The torch fallback in get_visible_gpu_utilization() and
get_backend_visible_gpu_info() previously passed that empty list to
_torch_get_per_device_info(), getting nothing back.

Now both functions detect the empty-list case and fall back to
enumerating torch-visible ordinals (0..device_count-1) with
index_kind="relative". This means the UI and auto-selection still
see real device data in Kubernetes, MIG, and Slurm-style UUID
environments where nvidia-smi output cannot be mapped to physical
indices.

Updated test_uuid_parent_visibility to verify the new torch fallback
path returns available=True with relative ordinals.

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* Add type hint for gpu_ids parameter in InferenceOrchestrator.load_model

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Daniel Han <danielhanchen@gmail.com>
2026-03-30 02:33:15 -07:00
Wasim Yousef Said
208862218d
feat(studio): training history persistence and past runs viewer (#4501)
* feat(db): add SQLite storage layer for training history

* feat(api): add training history endpoints and response models

* feat(training): integrate DB persistence into training event loop

* feat(ui): add training history views and card grid

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* fix(studio): address review issues in training history persistence

- Strip hf_token/wandb_token from config before SQLite storage
- Add UUID suffix to job_id for collision resistance
- Use isfinite() for 0.0 metric handling throughout
- Respect _should_stop in error event finalization
- Run schema DDL once per process, not per connection
- Close connection on schema init failure
- Guard cleanup_orphaned_runs at startup
- Cap _metric_buffer at 500 entries
- Make FLUSH_THRESHOLD a class constant
- Map 'running' to 'training' phase in historical view
- Derive LR/GradNorm from history arrays in historical view
- Fix nested button with div[role=button] in history cards
- Guard String(value) against null/undefined in config popover
- Clear selectedHistoryRunId on auto tab switch

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* fix(studio): address round-2 review findings across training backend and frontend

Backend (training.py):
- Move state mutation after proc.start() so a failed spawn does not wedge
  the backend with is_training=True
- Create DB run row eagerly after proc.start() so runs appear in history
  during model loading, not after first metric event
- Rewrite _flush_metrics_to_db() with snapshot-before-insert pattern to
  preserve metrics arriving during the write and retain buffer on failure
- Guard eval_loss with float() coercion and math.isfinite(), matching the
  existing grad_norm guard
- Increase pump thread join timeout from 3s to 8s to cover SQLite's
  default 5s lock timeout

Frontend (studio-page.tsx):
- Fix history navigation: check isTrainingRunning instead of
  showTrainingView in onSelectRun so completed runs are not misrouted
- Replace activeTab state + auto-switch useEffect with derived tab to
  eliminate react-hooks/set-state-in-effect lint violation

Frontend (historical-training-view.tsx):
- Add explicit "running" branch to message ternary so running runs no
  longer fall through to "Training errored"
- Derive loading from detail/error state and move cleanup to effect
  return to eliminate react-hooks/set-state-in-effect lint violation

Frontend (progress-section.tsx):
- Derive stopRequested from isTrainingRunning && stopRequestedLocal to
  eliminate react-hooks/set-state-in-effect lint violation and remove
  unused useEffect import

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* fix(studio): resolve 3 remaining bugs from round-2 review

1. Stuck on Current Run tab [12/20]: Only force "current-run" tab when
   isTrainingRunning is true, not when stale completed-run data exists.
   After training ends, users can freely navigate to Configure.

2. Incomplete metric sanitization [7/20]: Apply float() coercion and
   isfinite() guards to loss and learning_rate, matching the existing
   pattern used by grad_norm and eval_loss. Prevents TypeError from
   string values and NaN leaks into history arrays.

3. Stop button state leak across runs [10/20]: Add key={runtime.jobId}
   to ProgressSection so React remounts it when a new run starts,
   resetting stopRequestedLocal state.

* fix(studio): deduplicate loss/lr sanitization in training event handler

Reuse _safe_loss/_safe_lr from the progress update block instead of
re-sanitizing the same raw event values for metric history.

* fix(studio): restore loss > 0 guard to prevent eval steps injecting 0.0 into metric histories

Round-2/3 fixes relaxed the history append guard from `loss > 0` to
`loss is not None`, which let eval-only log events (where loss defaults
to 0.0) append fake zeros into loss_history and lr_history. Restore the
`loss > 0` check to match the worker's own has_train_loss gate. The
float() coercion and isfinite() sanitization from round-3 remain intact.

* fix(studio): resolve training history bugs — nullable loss/lr, tab nav, sparkline

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Co-authored-by: Daniel Han <danielhanchen@gmail.com>
2026-03-25 00:58:55 -07:00
NuoFang
4cedeba8c2
fix(studio): prevent ModuleNotFoundError in dataset.map() on Windows (#4473)
* fix(studio): prevent ModuleNotFoundError in dataset.map() on Windows

On Windows, dataset.map() uses "spawn", which requires workers to
import compiled modules from disk. Previously, clear_unsloth_compiled_cache()
deleted the entire directory, causing workers to crash when looking for
UnslothSFTTrainer.py.

Changes:
1. Added `preserve_patterns` to cache cleanup to keep `Unsloth*Trainer.py`
   on Windows while clearing model-specific files.
2. Added the cache directory to PYTHONPATH for spawn workers.
Linux/macOS behavior is unchanged.

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* Fix spawn-platform coverage, CWD path mismatch, and race condition for PR #4473

- Extend platform guard from win32-only to include macOS (also uses spawn
  since Python 3.8, same ModuleNotFoundError would occur)
- Replace fragile CWD-based PYTHONPATH registration with centralized
  register_compiled_cache_on_path() that uses the same __file__-relative
  _CACHE_DIRS already used by cache_cleanup -- fixes path mismatch when
  studio is launched from a directory other than the repo root
- Move PYTHONPATH registration to the top of _train_worker(), before any
  dataset.map() call (previously it ran late in config assembly, after
  dataset formatting which also calls dataset.map())
- Update inference.py model-unload to preserve trainer files on spawn
  platforms, preventing a race where unloading a model via inference tab
  would delete UnslothSFTTrainer.py while training workers are importing it

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* Fix cache-dir precedence reversal in register_compiled_cache_on_path()

Iterating _CACHE_DIRS in forward order while calling insert(0) each time
reverses the declared priority: later entries shadow earlier ones. When
multiple compiled-cache directories exist, spawned workers could import a
stale trainer from the wrong cache.

Fix: iterate in reverse so that the highest-priority entry (first in
_CACHE_DIRS) is inserted last and ends up at position 0 in sys.path and
PYTHONPATH.

* fix: harden worker-count helpers against cpu_count=None and desired<=0

- safe_num_proc: guard os.cpu_count() with `or 1`, clamp multi-GPU
  path with max(1, min(4, desired)), clamp return with max(1, desired)
- safe_thread_num_proc: same os.cpu_count() guard and return clamp
- Add regression tests (31 L1 unit + 10 sandbox edge-case tests)

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* remove regression tests from PR

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Co-authored-by: Daniel Han <danielhanchen@gmail.com>
2026-03-22 06:11:24 -07:00
Andrew Barnes
2c5d3c48ec
fix: subprocess crash during map operation on Windows (#4507)
* fix: handle Windows subprocess crash during dataset.map()

Windows uses spawn (not fork) for multiprocessing. Spawned workers
cannot resolve Unsloth's dynamically compiled cache modules from
unsloth_compiled_cache/, causing ModuleNotFoundError and RuntimeError
during dataset.map() tokenization.

Add two platform-guarded patches for sys.platform == "win32":
1. Force HF_DATASETS_MULTITHREADING_MAX_WORKERS=1 and set spawn method
2. Monkey-patch Dataset.map() to force num_proc=None

Fixes #4490

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

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* address review: extend spawn fix to macOS, add multiprocess fallback

- Change platform checks from sys.platform == "win32" to
  sys.platform != "linux" so macOS (also spawn-based) is covered
- Wrap multiprocess import in try/except falling back to stdlib
  multiprocessing when the multiprocess package isn't installed
- Rename _win32_safe_map to _spawn_safe_map to reflect broader scope

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

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* fix: replace global Dataset.map monkey-patch with targeted num_proc routing

The previous approach had issues: Patch 1 set HF_DATASETS_MULTITHREADING_MAX_WORKERS
and forced set_start_method (dead code on platforms already using spawn), and Patch 2
globally monkey-patched Dataset.map() (too broad, missed Dataset.filter()).

Replace with a two-layer fix:

1. Studio layer: Add dataset_map_num_proc() that returns None on spawn platforms
   (Windows, macOS). Unlike num_proc=1 which still creates Pool(1) and spawns a
   worker, num_proc=None runs Dataset.map()/filter() truly in-process.
   Update all dataset.map() callsites to use it. ThreadPoolExecutor callers
   (format_conversion.py) keep using safe_num_proc() since threads are unaffected.

2. Root-cause layer: Propagate UNSLOTH_COMPILE_LOCATION via PYTHONPATH on spawn
   platforms so spawned workers can import compiled modules. Mirrors the .venv_t5
   pattern in worker.py. Does not import unsloth_zoo.compiler (heavy torch/triton
   imports). Completely skipped on Linux.

Also extend safe_num_proc() to return 1 on macOS (was only guarding Windows),
and narrow the transformers 5.x dataloader guard from != "linux" to explicit
("win32", "darwin").

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* fix: add safe_thread_num_proc() for ThreadPoolExecutor callsites

safe_num_proc() correctly caps to 1 on macOS/Windows for process-based
multiprocessing, but format_conversion.py reuses it for ThreadPoolExecutor
workers. Threads share address space and are unaffected by spawn, so
capping to 1 makes image URL downloads sequential -- a real regression.

Add safe_thread_num_proc() that skips the platform guard but keeps the
cpu_count heuristic, and switch both ThreadPoolExecutor callsites in
format_conversion.py to use it.

* fix: remove double-wrap in dataset_num_proc + fix num_proc=1 in datasets route

- trainer.py:3009: Replace safe_num_proc(max(1, os.cpu_count() // 4))
  with max(1, (os.cpu_count() or 1) // 4) to avoid double-wrapping
  inside dataset_map_num_proc which already calls safe_num_proc
- trainer.py:15-20: Clarify comment on PYTHONPATH propagation
- datasets.py:445: Change num_proc=1 to num_proc=None for 10-row
  preview slice (avoids unnecessary multiprocessing overhead)

* fix: guard os.cpu_count() against None in worker-count helpers

os.cpu_count() can return None on some platforms. Use (os.cpu_count() or 1)
to prevent TypeError in safe_num_proc() and safe_thread_num_proc().

---------

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Daniel Han <danielhanchen@gmail.com>
2026-03-22 05:21:09 -07:00
Datta Nimmaturi
729a0cb0ae
[studio] full finetuning studio (#4461)
* full finetuning studio

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Update studio/backend/core/training/trainer.py

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Daniel Han <danielhanchen@gmail.com>
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
2026-03-19 02:18:46 -07:00
DoubleMathew
fd72376a7e
Fix/studio full finetuning (#4391)
* Wire Studio full finetuning into training loaders

* Preserve load_model positional compatibility
2026-03-17 20:47:26 -07:00
Roland Tannous
a0aba96ebd
fix: comment out debug print statements (#4357) 2026-03-17 15:43:27 +04:00
Daniel Han
eeffa4c065
studio: web search, KV cache dtype, training progress, inference fixes
## Summary
- Add web search tool calling for GGUF models (Search toggle, DuckDuckGo via ddgs)
- Add KV cache dtype dropdown (f16/bf16/q8_0/q5_1/q4_1) in Chat Settings
- Fix Qwen3/3.5 inference defaults per official docs (thinking on/off params)
- Enable reasoning by default for Qwen3.5 4B and 9B
- Replace "Generating" toast with inline spinner
- Fix stop button via asyncio.to_thread (event loop no longer blocked)
- Fix CUDA 12 compat lib paths for llama-server on CUDA 13 systems
- Fix auto-load model name not appearing in selector
- Training progress messages + dataset_num_proc fix

Integrated PRs:
- #4327 (imagineer99): BETA badge alignment (already in tree)
- #4340 (Manan Shah): prioritize training models in model selection
- #4344 (Roland Tannous): setup.sh macOS python version compatibility
- #4345 (Manan Shah): revamp model+dataset checking logic
2026-03-17 00:30:01 -07:00
Manan Shah
164b5a5b06
[Feature] studio: user can upload eval dataset (#4307)
* user can upload eval dataset, removed bugs

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* resolving merge conflicts

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* resolving gpt comments

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Roland Tannous <115670425+rolandtannous@users.noreply.github.com>
2026-03-16 11:15:50 +04:00
Roland Tannous
47654cb91c Final cleanup 2026-03-12 18:28:04 +00:00
Roland Tannous
a2baf80511 Update license headers 2026-03-12 17:23:10 +00:00
Shine1i
904e440513 feat(studio): studio storage roots path utilities 2026-03-11 20:19:52 +00:00
Roland Tannous
9dac1bedf9 Merge remote-tracking branch 'origin/nightly' into feature/llm-assist-detection 2026-03-11 16:23:09 +00:00
Roland Tannous
817f2e8dcc feat: integrate structlog, configure workers for prod logging, and migrate print statements 2026-03-11 12:33:16 +00:00
Manan17
5ca623a166 fixing gguf export for gemma with text 2026-03-11 00:58:22 +00:00
Roland Tannous
21ef22a9ff fix: skip streaming when dataset_slice_start > dataset_slice_end
Prevents training on the wrong row range when start exceeds end by
falling back to full download where existing clamping handles it.
2026-03-10 20:21:34 +00:00
Roland Tannous
226f251589 fix: guard against negative dataset_slice_end before streaming
Fall back to full download when dataset_slice_end is negative,
avoiding an empty stream.take(0) that would produce a broken dataset.
2026-03-10 20:12:42 +00:00
Roland Tannous
970a029108 fix: stream HF dataset when manual slice is specified
Instead of downloading the full dataset and then slicing, use
streaming mode to only fetch the rows needed (up to slice_end + 1)
when a manual dataset slice is configured.
2026-03-10 19:50:53 +00:00
Roland Tannous
7f1fd28acd debug: decode first sample after train_on_completions masking 2026-03-10 14:08:14 +00:00
Roland Tannous
f7ca361c5c feat: add LLM-assisted dataset detection using ephemeral GGUF helper
Uses Qwen2.5-3B-Instruct Q8_0 via LlamaCppBackend to complement
heuristic-based dataset detection when heuristics are uncertain.

- New llm_assist.py: VLM instruction generation, column classification,
  and user-friendly warning generation for dataset issues
- Pre-cache helper GGUF on FastAPI startup (background thread)
- Reorder training pipeline: dataset processing runs BEFORE model load
  to avoid VRAM contention (detect → dataset → model → train)
- Add pre_detect_and_load_tokenizer() for lightweight detection
- LLM warnings on VLM conversion failures (broken URLs, missing images)
- LLM column classification fallback when heuristics return unknown
- Graceful degradation: all paths unchanged when helper unavailable
2026-03-10 09:20:45 +00:00
Roland Tannous
daa50d0756 Revert "Merge pull request #347 from unslothai/feature/studio-storage-roots"
This reverts commit 6b43e33ff1, reversing
changes made to 9edadaf21f.
2026-03-10 01:52:47 +00:00
Shine1i
5301514775 feat(studio): studio storage roots path utilities 2026-03-09 23:48:31 +00:00
Roland Tannous
d882678fe4 Add AGPL-3.0 SPDX headers to all source files 2026-03-09 20:17:45 +00:00
Roland Tannous
b6811bc5c4 Merge pull request #342 from unslothai/local-dataset
dataset upload
2026-03-09 21:22:23 +04:00
Roland Tannous
41351e1566 fix: split dataset 80/20 when eval split matches train split 2026-03-09 16:36:44 +00:00
Roland Tannous
56412f2362 include all candidate files when scanning a directory, not just the first 2026-03-09 13:52:45 +00:00
Roland Tannous
91dd7fc762 merge nightly, resolve conflict in use-chat-model-runtime 2026-03-09 13:19:17 +00:00
Manan17
a49638c504 dataset upload 2026-03-09 05:50:18 +00:00
Shine1i
3b1663b1e9 feat(recipe-studio, datasets): improve dataset handling and update metadata logic 2026-03-09 02:47:32 +01:00
Shine1i
a2dde15367 merge nightly 2026-03-09 00:32:33 +01:00
samit
86e94b5844 exposed trust_remote_code through the UI 2026-03-08 16:28:56 -07:00
Roland Tannous
1435dbaf59 merge nightly into audio branch (mock test) 2026-03-08 10:23:44 +00:00
Manan17
6487f81113 check fir gated repo 2026-03-07 21:32:50 +00:00
Roland Tannous
8454e6dd2b fix: scope dataloader_num_workers=0 to Windows + transformers 5.x only 2026-03-07 17:55:59 +00:00
Roland Tannous
ef9184c731 fix: prevent training hang on Windows by adding triton-windows support 2026-03-07 17:53:36 +00:00
Roland Tannous
e25705a211 fix: propagate PYTHONPATH to child subprocesses, revert tokenizer patching 2026-03-07 11:28:24 +00:00
Roland Tannous
76c78afb8f fix: patch TokenizersBackend by model name - Qwen3.5→Qwen2Tokenizer, GLM→PreTrainedTokenizer 2026-03-07 10:29:59 +00:00
Roland Tannous
d60cd2843f fix: patch Qwen3.5 broken tokenizer_class TokenizersBackend across all backends 2026-03-07 09:43:25 +00:00
Shine1i
b277308b7e merge: nightly into feature/data-reciper-enchansments 2026-03-05 14:51:08 +01:00
Shine1i
e30fc87187 refactor(studio): add local data-recipe dataset selection + training wiring 2026-03-05 12:25:51 +01:00
Manan17
9909111982 resolved merge conflicts 2026-03-05 07:59:43 +00:00
Manan17
c723f8d4da fix SNAC training crash on variable-length sequences with DataCollatorForSeq2Seq 2026-03-05 07:04:53 +00:00
Roland Tannous
81b4928e99 Merge nightly into feature/transformers-v5-support 2026-03-05 06:49:44 +00:00