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

Scenario UID2aaed4c520956635 (experiment.tune.compiler.flags.llvm.e)
Data UIDfb4809bc49ad817d
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 2aaed4c520956635:fb4809bc49ad817d
CompilerLLVM 3.6
CPUIntel(R) Atom(TM) CPU Z3580 @ 1.33GHz
Objectivemin
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 51cbbbfbc34507b4 1.96 1.00 -O3 -fvectorize -fshort-wchar -fmodules-prune-after=85 -O3 1 0 2 1 cbench-telecom-crc32 default image-pgm-from-pamela-100 data.pgm 1 ASUS Z00A Android 5.0
S2 0c0b0475d4c8691a 1.72 1.05 -O3 -msoft-float -mno-implicit-float -O3 1 0 2 1 cbench-consumer-jpeg-c encode image-ppm-0001 data.ppm 1 ASUS Z00A Android 5.0
S3 b58f17f04cc1bed3 1.42 1.00 -O3 -fshort-enums -O3 1 0 2 1 cbench-consumer-jpeg-d decode image-jpeg-carp-3970203935-2be6dbb13e-o 3970203935_2be6dbb13e_o.jpg 1 ASUS Z00A Android 5.0
S4 e3b37f895de91f12 1.16 1.01 -O3 -fno-signed-char -fno-unroll-loops -fno-reroll-loops -fwrapv -mno-global-merge -O3 1 0 2 1 cbench-automotive-susan smoothing image-pgm-from-pamela-100 data.pgm 1 ASUS Z00A Android 5.0



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