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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	8fb4562f7e77ba1a

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 8289e0cf24346aa7:8fb4562f7e77ba1a

Compiler	GCC 4.9
CPU	MT6735M
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

45064b11a7f50a11

1.32

1.03

-O3 -fcompare-elim -fcse-skip-blocks -fcx-limited-range -fno-devirtualize -fno-hoist-adjacent-loads -fno-guess-branch-probability -fno-inline -ftoplevel-reorder -fno-partial-inlining -fno-peel-loops -fno-sched-critical-path-heuristic -fsingle-precision-constant -fthread-jumps -fno-tree-dce -fno-tree-dominator-opts -ftree-phiprop -fno-tree-sra -funsafe-loop-optimizations -fsched-stalled-insns-dep=0 --param max-pending-list-length=54 --param gcse-after-reload-critical-fraction=10 --param gcse-unrestricted-cost=4 --param max-unroll-times=1 --param max-unswitch-level=4 --param tracer-min-branch-probability=95 --param max-goto-duplication-insns=16 --param omega-max-vars=27 --param omega-hash-table-size=327 --param max-sched-insn-conflict-delay=1 --param selsched-insns-to-rename=2 --param simultaneous-prefetches=0 --param graphite-max-bbs-per-function=198 --param max-vartrack-expr-depth=3 --param ipa-cp-value-list-size=2 --param lto-partitions=10 --param max-tail-merge-comparisons=3

-O3

milepost-codelet-mibench-office-rsynth-src-nsynth-codelet-5-1

default

4GOOD S450M 4G

Android 5.1

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