Enable greedy scheduler by default

[naoyam]

Make the greedy scheduler enabled by default. Removed NVFUSER_ENABLE=greedy_scheduler and added NVFUSER_DISABLE=greedy_scheduler just in case.

[naoyam]

!test --diff

[github-actions]

Review updated until commit 3a79735

Description

• Enable greedy scheduler by default

• Remove explicit enable flags in tests

• Add disable option for greedy scheduler

• Update scheduler activation logic

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Changes walkthrough 📝

	Relevant files
Enhancement	options.cpp Move greedy scheduler to disable options                                  csrc/options.cpp Removed greedy_scheduler from enable options Added greedy_scheduler to disable options +1/-1      options.h Update option enums                                                                            csrc/options.h Removed GreedyScheduler from EnableOption Added GreedyScheduler to DisableOption +1/-1
Bug fix	greedy.cpp Update scheduler enable logic                                                        csrc/scheduler/greedy.cpp Changed check from enable to disable option Updated rejection reason message Added comment about current op support +8/-5
Tests	test_greedy.cpp Clean up test setup                                                                            tests/cpp/test_greedy.cpp Removed explicit greedy scheduler enable Removed temporary test case +0/-34    test_moe.cpp Remove redundant scheduler enable                                                tests/cpp/test_moe.cpp Removed explicit greedy scheduler enable Simplified test conditions +0/-4      test_scatter.cpp Clean up test setup                                                                            tests/cpp/test_scatter.cpp Removed explicit greedy scheduler enable +0/-1

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PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

🧪 PR contains tests

⚡ Recommended focus areas for review Logic Change The condition for enabling the greedy scheduler has been changed from checking an enable option to checking a disable option. This alters the default behavior and may affect existing workflows that rely on the previous enable/disable logic. bool GreedyScheduler::canScheduleCompileTime(Fusion* fusion) { if (isOptionDisabled(DisableOption::GreedyScheduler)) { scheduler_debug_utils::canScheduleRejectReason( SchedulerType::Greedy, "Disabled"); return false; } Option Removal The "greedy_scheduler" option has been removed from the enable options and added to the disable options. This change in configuration management should be validated for consistency with the project's option handling design. const std::unordered_map<std::string, EnableOption>& getEnableOptions() { static const std::unordered_map<std::string, EnableOption> available_options = { {"cutlass_scheduler", EnableOption::CutlassScheduler}, {"fuse_matmul", EnableOption::FuseMatmul}, {"fuse_multiple_matmuls", EnableOption::FuseMultipleMatmuls}, {"id_model", EnableOption::IdModel}, {"id_model_extra_validation", EnableOption::IdModelExtraValidation}, {"io_to_lower_precision", EnableOption::IoToLowerPrecision}, {"kernel_db", EnableOption::KernelDb}, Test Removal A test case named TMP has been removed, which might have been used for temporary testing or debugging. The impact of removing this test should be assessed to ensure no functionality is left untested. INSTANTIATE_TEST_SUITE_P( , GreedySchedulerTestShmemSize, testing::Values(128, 256, 512, 1024, 2048, 4096), [](const auto& info) { std::ostringstream os; os << info.param; return os.str(); }); } // namespace nvfuser

[naoyam]

!test --diff

[naoyam]

Small adjustment. Since the scheduler is not yet capable of optimization such as vectorization, it's only enabled for ops that are not supported by any other schedulers.

[naoyam]

Accidentally added