pytorch

3b6a7f4d - [MPS] Fix index_put with deterministic algorithm enabled (#97660)

[MPS] Fix index_put with deterministic algorithm enabled (#97660) Prevent using parallel computing when deterministic algorithm is set. Fixes #97574 Benchmark: ``` [--------------- index_put_ Deterministic Algorithm Enabled ---------------] | cpu | mps 1 threads: ----------------------------------------------------------------- Dtype: torch.float32 Features: 1024; Num Indices: 512 | 37 | 49 Dtype: torch.float32 Features: 1024; Num Indices: 1024 | 54 | 50 Dtype: torch.float32 Features: 1024; Num Indices: 2048 | 86 | 50 Dtype: torch.float32 Features: 1024; Num Indices: 4096 | 150 | 49 Times are in microseconds (us). [-------------- index_put_ Deterministic Algorithm Disabled ---------------] | cpu | mps 1 threads: ----------------------------------------------------------------- DType: torch.float32 Features: 1024; Num Indices: 512 | 37 | 49 DType: torch.float32 Features: 1024; Num Indices: 1024 | 53 | 49 DType: torch.float32 Features: 1024; Num Indices: 2048 | 86 | 49 DType: torch.float32 Features: 1024; Num Indices: 4096 | 147 | 50 Times are in microseconds (us). ``` <!-- copilot:summary --> ### <samp>🤖 Generated by Copilot at ebf2ff3</samp> Added a deterministic version of `index_put` for MPS tensors that runs on a single thread and can be enabled by a global context flag. Refactored the existing `index_put` function and the kernel selection logic to support both parallel and serial modes. Added a test function to verify the deterministic behavior of `index_put` under different conditions. Pull Request resolved: https://github.com/pytorch/pytorch/pull/97660 Approved by: https://github.com/kulinseth