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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 UID415e480995159674
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 2aaed4c520956635:415e480995159674
CompilerLLVM 3.9.0
CPUAMD Opteron(tm) Processor 250
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 187f286cbf41fa67 4.09 1.50 -O3 -mno-implicit-float -O3 2 1 416 450 milepost-codelet-mibench-telecomm-gsm-src-rpe-codelet-4-1 default 2388.869, 2388.869 2 Sun Microsystems 00 (Sun Fire V20z) Debian 3.16.7
S2 f33a215445e58bcc 1.90 0.99 -O3 -fslp-vectorize-aggressive -O3 2 1 528 561 cbench-consumer-jpeg-c encode image-ppm-0001 data.ppm 2388.846, 2388.846 2 Sun Microsystems 00 (Sun Fire V20z) Debian 3.16.7
S3 1914b86b96682c19 1.89 1.07 -O3 -fno-unroll-loops -O3 7 2 611 641 cbench-consumer-jpeg-c encode image-ppm-0001 data.ppm 2389.314, 2389.314 2 Sun Microsystems 00 (Sun Fire V20z) Debian 3.16.7
S4 08b6c4407aa91922 1.88 1.01 -O3 -ffast-math -fwrapv -O3 2 4 622 650 cbench-consumer-jpeg-c encode image-ppm-0001 data.ppm 2392.983, 2392.983 2 Sun Microsystems 00 (Sun Fire V20z) Debian 3.16.7
S5 e4eb180efc955acb 1.86 0.98 -O3 -mstackrealign -O3 2 2 598 630 cbench-consumer-jpeg-c encode image-ppm-0001 data.ppm 2393.167, 2393.167 2 Sun Microsystems 00 (Sun Fire V20z) Debian 3.16.7
S6 81bada2383e42d8b 1.82 0.96 -O3 -mrelax-all -O3 2 3 558 591 cbench-consumer-jpeg-c encode image-ppm-0001 data.ppm 2390.295, 2390.295 2 Sun Microsystems 00 (Sun Fire V20z) Debian 3.16.7
S7 a451fb2a82f25de3 1.12 1.07 -O3 -ffinite-math-only -fno-unroll-loops -O3 1 1 50 84 milepost-codelet-mibench-consumer-lame-src-quantize-codelet-7-1 default 2390.276, 2390.276 2 Sun Microsystems 00 (Sun Fire V20z) Debian 3.16.7



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