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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 UIDd009470da7df67fb
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:d009470da7df67fb
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 607ad9f43080ff33 2.15 1.00 -O3 -fconserve-stack -fcrossjumping -fdce -fno-hoist-adjacent-loads -fno-ipa-pure-const -fmath-errno -fno-optimize-sibling-calls -free -fno-sched-spec-load -fsplit-wide-types -ftree-loop-if-convert-stores -funit-at-a-time -fno-unswitch-loops -fsched-stalled-insns-dep=0 --param max-inline-recursive-depth=9 --param max-inline-recursive-depth-auto=4 --param large-unit-insns=3836 --param max-completely-peel-times=15 --param tracer-min-branch-probability=58 --param iv-consider-all-candidates-bound=47 --param iv-always-prune-cand-set-bound=20 --param omega-max-wild-cards=1 --param vect-max-version-for-alias-checks=4 --param max-sched-insn-conflict-delay=3 --param selsched-insns-to-rename=3 --param max-vartrack-size=221718 --param lto-min-partition=1657 --param allow-load-data-races=1 --param asan-globals=1 -O3 1 0 2 1 milepost-codelet-mibench-security-pgp-d-src-mpilib-codelet-1-1 default 1 XIAOMI REDMI NOTE 4 Android 6.0
S2 ee8e2bb1e9dc0ea0 1.81 1.00 -O3 -fno-check-data-deps -fno-crossjumping -fno-cx-fortran-rules -fdelete-null-pointer-checks -fhoist-adjacent-loads -fipa-pure-const -fno-modulo-sched-allow-regmoves -frounding-math -fno-sched-critical-path-heuristic -fno-selective-scheduling2 -fno-tree-copyrename -ftree-fre -ftree-loop-distribute-patterns -ftree-loop-optimize -fno-tree-ter -fuse-linker-plugin -fsched-stalled-insns-dep=0 -fsched-stalled-insns=0 --param max-inline-insns-single=305 --param large-function-growth=166 --param max-peel-times=7 --param sms-min-sc=3 --param hot-bb-count-ws-permille=875 --param max-cse-path-length=7 --param vect-max-peeling-for-alignment=21 --param max-sched-insn-conflict-delay=3 --param sched-mem-true-dep-cost=0 --param max-dse-active-local-stores=1082 --param slp-max-insns-in-bb=1531 --param max-vartrack-size=97662996 --param tm-max-aggregate-size=7 --param ipa-cp-value-list-size=13 -O3 1 0 2 1 milepost-codelet-mibench-consumer-jpeg-c-src-jfdctint-codelet-2-1 default 1 XIAOMI REDMI NOTE 4 Android 6.0

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