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Distinct solutions after online classification (auto/crowd-tune GCC compiler flags (minimize execution time))

Scenario UID8289e0cf24346aa7 (experiment.tune.compiler.flags.gcc.e)
Data UID8e82265e4eb94302
Discuss (optimizations to improve compilers,
semantic/data set/hardware features
to improve predictions
, etc):
GitHub wiki, Google group
Download:[ All solutions in JSON ], [ Solutions' classification in JSON ]
Reproduce all (with reactions):ck replay 8289e0cf24346aa7:8e82265e4eb94302
CompilerGCC 4.9
Improvement key IK1Main kernel execution time speedup [min]
Improvement key IK2Code size improvement

Improvements (<4% variation) Distinct workload for highest improvement
# Solution UID IK1 IK2 New distinct optimization choices Ref Best species Worst species Touched Iters Program CMD Dataset Dataset file CPU freq (MHz) Cores Platform OS Replay
S1 e054808b4668cd79 1.59 0.25 -O3 -fcombine-stack-adjustments -fno-compare-elim -fcx-limited-range -fno-fat-lto-objects -fno-if-conversion -fno-inline-functions-called-once -fipa-cp -fira-hoist-pressure -fno-ira-loop-pressure -fivopts -flto -fno-modulo-sched -fno-peel-loops -freciprocal-math -fno-reorder-blocks -fno-sched-spec-load-dangerous -fsched-group-heuristic -fno-section-anchors -fno-selective-scheduling -ftracer -ftree-copyrename -fno-tree-dce -ftree-forwprop -ftree-pre -ftree-slsr -fuse-linker-plugin --param max-delay-slot-live-search=481 --param max-modulo-backtrack-attempts=62 --param max-peeled-insns=72 --param tracer-min-branch-probability=5 --param scev-max-expr-size=194 --param vect-max-version-for-alias-checks=10 --param max-sched-insn-conflict-delay=8 --param simultaneous-prefetches=2 --param max-vartrack-expr-depth=17 --param ipa-cp-value-list-size=13 --param case-values-threshold=0 --param max-tail-merge-comparisons=11 --param asan-stack=1 --param asan-instrument-reads=1 -O3 1 0 2 1 milepost-codelet-mibench-telecomm-adpcm-d-src-adpcm-codelet-1-1 default 1 XIAOMI MI PAD Android 4.4.4

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