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

Scenario UID	8289e0cf24346aa7 (experiment.tune.compiler.flags.gcc.e)
Data UID	c4c80aecdb23b433

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:c4c80aecdb23b433

Compiler	GCC 4.9
CPU	Samsung GrandPrimePlus LTE LTN OPEN rev04 board based on MT6737T
Objective	min

Improvement key IK1	Main kernel execution time speedup [min]
Improvement key IK2	Code 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

Replay

45758edb8c77f868

1.72

1.03

-O3 -fcaller-saves -fconserve-stack -fno-compare-elim -fno-dse -fno-hoist-adjacent-loads -fipa-pure-const -fno-merge-constants -fsched-spec -fomit-frame-pointer -fno-partial-inlining -freciprocal-math -fsched-spec-load -fno-sched-spec-load-dangerous -fno-signaling-nans -fstrict-aliasing -ftree-bit-ccp -ftree-loop-linear -fno-unsafe-loop-optimizations -falign-functions=0 -falign-jumps=0 -ftree-parallelize-loops=0 --param min-inline-recursive-probability=14 --param min-vect-loop-bound=1 --param max-unroll-times=3 --param hot-bb-frequency-fraction=1093 --param align-threshold=194 --param tracer-min-branch-ratio=28 --param iv-always-prune-cand-set-bound=0 --param scev-max-expr-size=71 --param max-cselib-memory-locations=509 --param max-sched-region-insns=22 --param sched-spec-prob-cutoff=96 --param selsched-max-lookahead=9 --param prefetch-latency=65 --param sccvn-max-alias-queries-per-access=1413 --param ipa-cp-array-index-hint-bonus=81 --param allow-packed-load-data-races=1

-O3

milepost-codelet-mibench-automotive-basicmath-cubic-codelet-3-1

default

1040, 1040, 1040, 1040

SAMSUNG SM-G532M

Android 6.0.1

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