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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 UID89eafdc0af94642c
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 8289e0cf24346aa7:89eafdc0af94642c
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 e14e0a893b1e2588 1.24 1.00 -O3 -fbranch-target-load-optimize2 -fbtr-bb-exclusive -fno-ipa-sra -fira-share-save-slots -ftrapping-math -fno-rounding-math -fschedule-insns -fno-section-anchors -fno-sel-sched-pipelining-outer-loops -fstrict-aliasing -fstrict-overflow -fno-tree-builtin-call-dce -fno-tree-dse -fno-tree-forwprop -ftree-pre -fno-tree-sink -fno-tree-sra -ftree-switch-conversion -funsafe-math-optimizations --param inline-unit-growth=0 --param max-peel-times=21 --param max-unswitch-insns=88 --param hot-bb-frequency-fraction=1632 --param tracer-max-code-growth=157 --param max-cse-insns=182 --param iv-max-considered-uses=250 --param scev-max-expr-complexity=0 --param integer-share-limit=20 --param l1-cache-line-size=24 --param graphite-max-nb-scop-params=17 --param loop-max-datarefs-for-datadeps=1866 --param ipa-cp-loop-hint-bonus=124 --param lto-partitions=55 --param allow-packed-load-data-races=1 --param max-tail-merge-comparisons=2 --param max-tail-merge-iterations=3 --param asan-stack=0 --param asan-instrument-reads=0 -O3 1 0 2 1 cbench-consumer-jpeg-d decode image-jpeg-dnn-cat cat.jpg 1300, 1300, 1300, 1300 1 SPA CONDOR ELECTRONICS PGN610 Android 7.0

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