unsloth/studio
Daniel Han b35985162f Harden the diffusion memory plan against transient free-VRAM undercounts
A cold FLUX.2-dev int8 load on an idle 183 GB B200 planned offload=model
(companions exceed budget) and silently served the GGUF as-is; the identical
retry went resident and engaged the hosted prequant. The plan arithmetic was
byte-identical across both loads (required 90,228 MiB, resident needs free of
about 124 GB); the only divergent input was torch.cuda.mem_get_info, which is
device-wide and instantaneous: a transient foreign CUDA context briefly held
about 100 GB at the first snapshot, and the planner trusted that single read.

Three changes:
- settled_snapshot_device_memory: on cuda, synchronize + empty_cache
  (best-effort) and take the MAX free over up to 3 spaced reads. A transient
  can only shrink free, so the max rejects transient undercounts while a
  persistent tenant still caps every read. _plan_memory now uses it.
- plan_fits_total_capacity + one replan retry: when the dense/prequant
  candidate fits TOTAL device capacity under the standard reserve and the 0.85
  resident margin, an offload verdict can only stem from the free reading, so
  the loader re-snapshots and replans once before declining the fast path.
  Explicit balanced/low_vram modes skip the retry (they offload by mode).
- diffusion.transformer_quant_declined log line with required/budget/free and
  the plan reasons, so the next decline is diagnosable from the server log
  (previously silent).

Verified: cold FLUX.2-dev int8 first load in a fresh server now engages the
hosted prequant resident (offload=none).
2026-07-17 08:46:12 +00:00
..
backend Harden the diffusion memory plan against transient free-VRAM undercounts 2026-07-17 08:46:12 +00:00
frontend Studio: restore Reapply target on async image/video load errors; recheck training state before dataset commit; reclaim partial sd.cpp installs on retry 2026-07-13 15:27:46 +00:00
src-tauri Speed up Studio startup path (#6899) 2026-07-07 18:08:07 -07:00
__init__.py Final cleanup 2026-03-12 18:28:04 +00:00
install_llama_prebuilt.py Studio: detect Windows Intel GPUs via the registry before WMI (#7064) 2026-07-10 17:59:04 -03:00
install_node_prebuilt.py Pin isolated Node.js installer to committed sha256 digests (#6625) 2026-06-24 05:47:58 -07:00
install_python_stack.py Studio: fix flash-attn and torchao install on Blackwell (sm_100+) GPUs (Closes #6961) (#6970) 2026-07-08 06:38:10 -07:00
install_sd_cpp_prebuilt.py Studio: restore Reapply target on async image/video load errors; recheck training state before dataset commit; reclaim partial sd.cpp installs on retry 2026-07-13 15:27:46 +00:00
LICENSE.AGPL-3.0 Add AGPL-3.0 license to studio folder 2026-03-09 19:36:25 +00:00
node_prebuilt_pins.json Pin isolated Node.js installer to committed sha256 digests (#6625) 2026-06-24 05:47:58 -07:00
package-lock.json ci: advisory lockfile supply-chain audit (no install-script changes) (#5604) 2026-05-19 05:56:56 -07:00
package.json ci: advisory lockfile supply-chain audit (no install-script changes) (#5604) 2026-05-19 05:56:56 -07:00
setup.bat Final cleanup 2026-03-12 18:28:04 +00:00
setup.ps1 Fix Windows installer torch index override (#6972) 2026-07-09 03:46:47 -07:00
setup.sh Studio: source CPU llama.cpp prebuilts from unslothai/llama.cpp (#6311) 2026-07-08 05:34:59 -07:00
Unsloth_Studio_Colab.ipynb Studio Colab: opt-in shareable Cloudflare tunnel link (#6684) 2026-06-26 00:56:23 -07:00