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feat(statevector): sample on Apple GPUs through Metal - #290

Merged

rafaelha merged 42 commits into

mainfrom

feat/metal-statevector

Nov 12, 2026

Merged

feat(statevector): sample on Apple GPUs through Metal#290
rafaelha merged 42 commits into
mainfrom
feat/metal-statevector

Commits on Nov 10, 2026
- feat(statevector): add the host code that GPU backends share
  
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- fix(statevector): bound the GPU noise tables, chunk sizes and shot-work model
  
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- fix(statevector): draw noise of tiny probabilities from 48-bit skips
  
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Commits on Nov 11, 2026
- refactor(statevector): assert the tape dialects' chunk size
  
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  0bff456
- refactor(statevector): drop rows.pieces
  
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  710ddf2
- refactor(statevector): share the noise split and screen pass rate
  
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  df60b74
- refactor(statevector): share the tape kernel's glue and limits
  
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- refactor(statevector): share the GPU samplers' fork warning
  
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  f25fcfc
- feat(statevector): sample on Apple GPUs through Metal
  
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  c9b6ed6
- fix(metal): make GPU samplers safe to share, interrupt, fork and pickle
  
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  f3ab670
- fix(metal): let pyright pass where PyObjC's Metal is not installed
  
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  cfbd2fc
- feat(metal): sample on Apple GPUs by default, and say where a sampler samples
  
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  a8896a1
- docs(skills): say how to benchmark Tsim on Apple-silicon Macs
  
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  3d6ad1a
- refactor(metal): pack whole shot words, without piece tables
  
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- refactor(metal): drop write-only timers and unused kernel arguments
  
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- refactor(metal): use the shared GPU helpers
  
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  f4c848d
- refactor(metal): name the counts words and the dispatch sizes
  
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  d61bad2
- refactor(metal): share the noise kernels' signature and queue code
  
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  ec61a39
- refactor(metal): move the kernels' MSL to metal/kernels.py
  
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  b0b32e7
- refactor(metal): pass a call's shared state as one _Call
  
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  1d88e5c
- refactor(metal): let the Metal package choose its sampler
  
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  d5c48c8
- test(metal): parametrize the tests that repeated one body
  
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  9aa1cf3
- docs(metal): shorten the changelog entry and the strategy docstrings
  
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  82d3ed1
- perf(metal): screen a noise block's shots in parallel
  
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  ec5d77c
- perf(metal): give wide tapes 16 amplitudes per thread
  
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  5f77544
- ci: do not fail the build when the Codecov upload fails
  
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  c7a825d
- fix(metal): check that SIMD lanes follow thread order before using the GPU
  
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  4462319
- fix(metal): sample on the CPU when a kernel does not compile
  
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  f6b0336
- fix(metal): hash each noise block's stream
  
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  a796624
- test(metal): check that noise of tiny probabilities fires at its rate
  
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  981a694
- docs(metal): say that the GPU never draws outcomes below about 1e-11
  
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  b17457c
- Merge remote-tracking branch 'origin/main' into simplify/gpu-shared
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- Merge remote-tracking branch 'origin/feat/gpu-shared' into feat/metal-statevector
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  58471a3
- Revert "ci: do not fail the build when the Codecov upload fails"
  
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  3923b44
- test(statevector): run looping and unrolled GPU tapes against the CPU executor
  
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Commits on Nov 12, 2026
- ci: leave the Metal executor out of Codecov
  
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  4d15b33
- fix(statevector): keep rare outcomes of a GPU noise channel
  
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  94cb838
- fix(statevector): keep rotations with rare branches off the GPU
  
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  1da9703
- Merge branch 'feat/gpu-shared' into fix/metal-review
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  a54cce4
- fix(metal): draw a noise outcome from 40-bit keep thresholds
  
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  97fd0b4
- Merge remote-tracking branch 'origin/main' into fix/metal-review
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  8e4167f
- fix(metal): honor batch_size for component-free boolean samples
  
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  02e24ac

Commits

Commits on Nov 10, 2026

Commits on Nov 11, 2026

Commits on Nov 12, 2026