[PATCH] D153925: [AMDGPU] NFC: Add schedule-relaxed-occupancy to relax occupancy targets for wave-limited/membound kernels
Jeffrey Byrnes via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Jun 27 14:54:51 PDT 2023
jrbyrnes created this revision.
jrbyrnes added reviewers: kerbowa, rampitec, nhaehnle.
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Default scheduling behavior for these types of kernels is to chase high occupancy goals with scheduling heuristics, but allow occupancy drops if we are unable to reach the target.
This (experimental, off-by-default) feature relaxes occupancy target from the beginning, which enables scheduler to produce better ILP schedules.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D153925
Files:
llvm/lib/Target/AMDGPU/GCNSchedStrategy.cpp
llvm/test/CodeGen/AMDGPU/schedule-relaxed-occupancy.ll
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