Pull requests

• [MPS] Raise on mixed-dtype linalg.cross instead of silently misreading the second operand

  ciflow/mpsopen sourcerelease notes: mps
  #201631·he-yufeng opened Oct 21, 2026Contributor·

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• [inductor] Recognize npu in Triton TMA / tensor descriptor detection

  bot-triagedciflow/inductorciflow/torchtitanmissing actionable issuemodule: inductoropen sourcetriaged
  #201625·zhoushaowen69 opened Oct 21, 2026·

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• refactor FSDPTest and FSDPTestMininx to be device-agnostic

  open source
  #201623·fffrog opened Oct 21, 2026Collaborator·

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• [DCP] Add opt-in mmap loading for local FileSystemReader

  bot-triage-errorciflow/torchtitanopen sourcerelease notes: distributed (checkpoint)
  #201621·AWWWOLF opened Oct 21, 2026·

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• [2/3][Test] Reorder two flash varlen tests ahead of the cuDNN class split

  ci-no-tdciflow/trunkopen sourcetopic: not user facing
  #201620·tszulist-hbn opened Oct 21, 2026Contributor·

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• [Dynamo] Mint the correct stream for current_stream of an untracked device index

  bot-triagedciflow/inductorciflow/torchtitanmissing actionable issuemodule: dynamoopen sourcetriaged
  #201619·AAYESLY opened Oct 21, 2026·

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• Skip shared-memory manager lookup on Emscripten

  bot-triagedmissing actionable issueopen sourcetriaged
  #201618·anutosh491 opened Oct 21, 2026·

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• [CUDA] Make native CTC loss backward deterministic

  bot-triagedmissing actionable issueopen sourcerelease notes: nntriaged
  #201617·shuo-ouyang opened Oct 21, 2026Contributor·

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• Fix test_sdpa_rewriter_stacked_layers_with_mask on XPU by asserting the pattern of the last run

  ciflow/inductormodule: inductoropen sourcetopic: not user facing
  #201614·CuiYifeng opened Oct 21, 2026Contributor·

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• Limit ResourceTracker imports to macOS

  bot-triagedmissing actionable issueopen sourcetriaged
  #201613·anutosh491 opened Oct 21, 2026·

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• Fix processName() on windows and align it with modern c++

  open sourcetopic: not user facing
  #201610·kdrozd-dev opened Oct 21, 2026Contributor·

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• [dynamo] Preserve product inputs when repeat is zero

  bot-triage-errorci-refresh-hf-cacheciflow/b200ciflow/dockerciflow/h100ciflow/inductorciflow/inductor-pallasciflow/mpsciflow/rocm-mi300ciflow/torchtitanciflow/trunkmodule: amp (automated mixed precision)module: cpumodule: dynamoopen sourcerelease notes: quantizationrelease notes: releng
  #201609·mottopanikeiku opened Oct 21, 2026Contributor·

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• [dynamo] Reuse the initial iterator in itertools.cycle

  bot-triage-errorci-refresh-hf-cacheciflow/b200ciflow/dockerciflow/h100ciflow/inductorciflow/inductor-pallasciflow/mpsciflow/rocm-mi300ciflow/torchtitanciflow/trunkmodule: amp (automated mixed precision)module: cpumodule: dynamoopen sourcerelease notes: quantizationrelease notes: relengtopic: not user facing
  #201608·mottopanikeiku opened Oct 21, 2026Contributor·

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• [c10d] FakeProcessGroup: leave output version counters alone, as real backends do

  in progressmeta-exportedrelease notes: distributed (c10d)
  #201606·stanley-shi opened Oct 21, 2026·

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• Fix int narrowing in deterministic index_put_ grid size on CUDA

  open source
  #201605·JonSnow1807 opened Oct 21, 2026Contributor·

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• [Testcase Refactoring] Add TestQuantizedTensorCUDA and hardware classification labels

  module: tests/othersopen sourcerelease notes: quantizationtopic: not user facing
  #201603·syg1996419 opened Oct 21, 2026Contributor·

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• [Testcase Refactoring] Migrate device tests to TestQuantizedTensorDevice

  module: tests/othersopen sourcerelease notes: quantizationtopic: not user facing
  #201602·syg1996419 opened Oct 21, 2026Contributor·

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• [inductor] Enable mix-order reduction tests on npu

  bot-triagedciflow/inductorciflow/torchtitanmissing actionable issuemodule: inductoropen sourcetriaged
  #201601·zhoushaowen69 opened Oct 21, 2026·

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• [inductor] Clamp explicit mix-order split size to a power of two on npu

  bot-triagedciflow/inductorciflow/torchtitanmissing actionable issuemodule: inductoropen sourcetopic: not user facingtriaged
  #201600·zhoushaowen69 opened Oct 21, 2026·

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• [inductor] Normalize namedtuple packed metadata to dict for launcher stubs that require it

  bot-triagedciflow/inductorciflow/torchtitanmissing actionable issuemodule: inductoropen sourcetriaged
  #201599·zhoushaowen69 opened Oct 21, 2026·

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• [Testcase Refactoring] Migrate device tests to TestQuantizedTensorDevice

  module: tests/othersopen sourcerelease notes: quantizationtopic: not user facing
  #201598·syg1996419 opened Oct 21, 2026Contributor·

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• [Testcase Refactoring] Add TestQuantizedTensorDevice and migrate device tests

  module: tests/othersopen sourcerelease notes: quantizationtopic: not user facing
  #201597·syg1996419 opened Oct 21, 2026Contributor·

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• [Testcase Refactoring] Extract TestQuantizedTensorBase helper methods

  module: tests/othersopen sourcerelease notes: quantizationtopic: not user facing
  #201596·syg1996419 opened Oct 21, 2026Contributor·

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• [CRCR] Demote pytorch/crcr-test from L3 to L2

  bot-triagedcrcr-auto-demotionopen sourcetopic: not user facingtriaged
  #201595·pytorchbot opened Oct 21, 2026Collaborator·

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• [Testcase Refactoring] Split TestQuantizedLinearCUDA and add hardware classification labels

  module: tests/othersopen sourcerelease notes: quantizationtopic: not user facing
  #201594·syg1996419 opened Oct 21, 2026Contributor·

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