Support Python 3.14 free-threaded CUDA wheels - #897

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tpn wants to merge 24 commits into

NVIDIA:mainfrom

tpn:feature/add-314-free-threading-support

Commits on Jun 12, 2026

Support free-threaded Python in native extensions
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be07770
Enable cp314t wheel builds
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798a02e
Use importlib pytest mode for CUDA tests
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a124cc4
Ignore Windows extension build outputs
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ab22e9e
Address free-threading review comments
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fcd0a40

Commits on Jun 13, 2026

Guard concurrent CUDA specialization
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9582e37
Guard launch-config races
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62df131
Serialize lazy CUDA driver initialization

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claude
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7f5da0e
Make pending-deallocation queue thread-safe

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claude
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355d91c
Use version hex for Python API guard
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8be5c73
Report concurrent init join timeouts
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3c20ec3
Clarify pytest import-mode comment
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9e223f7
Defer launch-config default without active launch
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2308a11
Initialize driver recursion guard once

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claude
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10cce1b
Guard driver init fields independently
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abe06cd
Lock pending-dealloc read accessors
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6886ca8
Move mviewbuf item declaration before statements
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484f6fa
Respect Py_GIL_DISABLED macro value
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50421f1

Commits on Jun 14, 2026

Add free-threading stress regression tests
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38cf185
Document free-threading stress controls
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2816f4f
Bound free-threading dispatch stress hangs
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194600e
Fix no-launch LCS cache compile
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fc4c9c8
Avoid full-GC loop in dispatch stress
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7bf53d4

Commits on Jun 15, 2026

Format CI matrix filters
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2953b48