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This PR adds support for prune_configs_by in the @triton.autotune decorator [docs](https://triton-lang.org/main/python-api/generated/triton.autotune.html#triton.autotune). Supporting this lets users reduce autotuning time by running user-supplied code (early_config_prune, perf_model) to prune the provided list of configs. We implement this by realizing args/kwargs in call_triton_kernel(...), and then calling kernel.prune_configs(...). Pull Request resolved: https://github.com/pytorch/pytorch/pull/142207 Approved by: https://github.com/zou3519, https://github.com/aakhundov