Go言語でシミュレーション用のシンプルなフレームワークStageをつくった/Fukuokago Stage

Fukuoka.go#16 (オンライン開催)
https://fukuokago.connpass.com/event/180414/

Transcript

1. ࡾ୐༔հ / Pepabo R&D Institute, GMO Pepabo, Inc.
   2020.07.14 Fukuoka.go#16
   GoݴޠͰγϛϡϨʔγϣϯ༻ͷ
   γϯϓϧͳϑϨʔϜϫʔΫ
   StageΛͭͬͨ͘
   

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2. 1SJODJQBMFOHJOFFS
   :VTVLF.*:",&!NPOPDISPNFHBOF
   1FQBCP3%*OTUJUVUF (.01FQBCP *OD
   IUUQTCMPHNPOPDISPNFHBOFDPN
   

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3. 1. ͸͡Ίʹ
   2. ίϯϐϡʔλγϛϡϨʔγϣϯ ϑϨʔϜϫʔΫStage
   3. ·ͱΊ
   4. ͓·͚
   3
   ໨࣍
   

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4. 1.
   ͸͡Ίʹ
   

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5. • ঢ়گʹԠͨ͡ΫϦοΫ਺ͷ࠷େԽ΍มԽ఺ݕग़ͷΑ͏ͳɺγεςϜͷదԠతͳ
   ৼΔ෣͍Λݕূ͢ΔͨΊʹɺ࣌ܥྻʹର͢ΔίϯϐϡʔλγϛϡϨʔγϣϯΛ
   ߦ͏͜ͱ͕͋Δɻ
   • → ֬཰తͳৼΔ෣͍΍ɺ࣮؀ڥͰൃੜ͢ΔϥϯμϜͳޡࠩΛදݱ͢Δ৔
   ߹ɺཚ਺Λ༻͍ͨγϛϡϨʔγϣϯٕ๏Ͱ͋ΔϞϯςΧϧϩ๏΋ར༻͢Δ
   5
   ίϯϐϡʔλγϛϡϨʔγϣϯ
   

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6. 6
   ίϯϐϡʔλγϛϡϨʔγϣϯ
   Arm0
   Arm1
   Arm2
   User(s) System
   ଴ͪߦྻ ଟ࿹όϯσ
   Οοτ໰୊
   ౸ணաఔʹϙΞιϯ෼෍ɺαʔϏεաఔʹࢦ਺
   ෼෍Λద༻ͨ͠଴ͪߦྻϞσϧͷγϛϡϨʔ
   γϣϯ
   ར༻ऀͷᅂ޷͔Β੒Δ঎඼ʹର͢Δ൓Ԡʢใ
   ुʣΛ͋Δ֬཰෼෍ʹݟཱͯɺظؒதͷྦྷੵใ
   ुΛ࠷େԽ͢ΔํࡦΛ୳ΔγϛϡϨʔγϣϯ
   

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7. • γϛϡϨʔγϣϯର৅͸ຖճҟͳΔ͕ɺࣅͨΑ͏ͳॲཧ͸ຖճ࣮૷͍ͯ͠Δ
   • Ұ࿈ͷॲཧʢධՁର৅ͷɺ͋Δےॻ͖ʹର͢ΔৼΔ෣͍Λෳ਺ճ؍ଌʣ
   • γϛϡϨʔγϣϯͷฒྻԽ
   • ਐḿͷ؂ࢹʢϓϩάϨεόʔʣ
   • ϩάग़ྗ
   • ཚ਺γʔυͷ؅ཧ
   • →࿦จࠪಡϓϩηεʹ͓͍ͯ࠶࣮ߦͯ͠ಉ݁͡Ռ͕ಘΒΕΔ؀ڥ͸ॏཁ
   • ݁ՌͷՄࢹԽ
   7
   ίϯϐϡʔλγϛϡϨʔγϣϯ࣮૷ͷ՝୊
   

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8. 2.
   Stage
   

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9. • ཚ਺Λ༻͍ͨίϯϐϡʔλγϛϡϨʔγϣϯʹ൐͏Ұ࿈͔ͭ൥ࡶͳॲཧΛ։ൃ
   ऀ͔ΒӅṭ͢ΔγϯϓϧͳϑϨʔϜϫʔΫ
   • Goݴޠ੡
   9
   monochromegane/stage
   https://github.com/monochromegane/stage
   

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10. • ཚ਺Λ༻͍ͨίϯϐϡʔλγϛϡϨʔγϣϯʹ൐͏Ұ࿈͔ͭ൥ࡶͳॲཧΛ։ൃ
    ऀ͔ΒӅṭ͢ΔγϯϓϧͳϑϨʔϜϫʔΫ
    10
    monochromegane/stage
    • Ұ࿈ͷॲཧʢධՁର৅ͷɺ͋Δےॻ͖ʹର͢ΔৼΔ෣͍Λෳ਺ճ؍ଌʣ
    • γϛϡϨʔγϣϯͷฒྻԽ
    • ਐḿͷ؂ࢹʢϓϩάϨεόʔʣ
    • ϩάग़ྗ
    • ཚ਺γʔυͷ؅ཧ
    • ݁ՌͷՄࢹԽ
    4UBHF͕ର৅ͱ͢Δൣғ
    ˎ౎౓ҟͳΔɺධՁର৅ͱےॻ͖ͷΈ
    Λ࣮૷͢Δ
    4UBHF͕ର৅ͱ͠ͳ͍ൣғ
    ˎγϛϡϨʔγϣϯʹΑͬͯޮՌతͳՄࢹԽ͕ҟͳΔͷͰϩάग़ྗҎ߱͸౎౓࣮૷͕ྑ͍ͱ൑அ
    

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11. 11
    γφϦΦͱΞΫλʔ
    • StageͰ͸γϛϡϨʔγϣϯΛܶʹྫ͑ͨϝλϑΝʔΛ࠾༻
    • Stage = ܶ৔ɺScenario = ୆ຊʢγφϦΦʣɺActor = ԋऀ
    • ։ൃऀ͸ɺҰճͷγϛϡϨʔγϣϯͷ؀ڥͷมԽΛγφϦΦͱɺͦͷ؀ڥʹԠ
    ͨ͡ԋऀͷৼΔ෣͍ΛίʔυͰ࣮૷͢Δ
    

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12. 12
    StageϑϨʔϜϫʔΫͷϝΠϯॲཧʢٙࣅίʔυʣ
    γφϦΦ͔ΒηϦϑΛಡΈग़͢
    ԋऀ͕ηϦϑʹै͍ԋٕ
    ԋٕͷ݁ՌΛॻ͖ग़͢
    

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13. 13
    StageϑϨʔϜϫʔΫͷϝΠϯॲཧʢٙࣅίʔυʣ
    ܶ৔Ͱ͸͕ܶԿ౓΋։࠵͞ΕΔɻ
    HPSPVUJOFͰͰ͖Δ͚ͩಉ্࣌өʹʂ
    

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14. • Scenarioͷ࣮૷
    14
    StageͰίϯϐϡʔλγϛϡϨʔγϣϯʢ1/3ʣ
    γφϦΦΛಡΈਐΊΔɻ
    Χ΢ϯλΛΠϯΫϦϝϯτ͢ΔॲཧͳͲΛ࣮૷
    Χ΢ϯλ࣌఺Ͱͷ؀ڥ৘ใΛ-JOFͰฦ͢
    

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15. • Scenarioͷ࣮૷
    15
    StageͰίϯϐϡʔλγϛϡϨʔγϣϯʢ1/3ʣ
    γφϦΦΛಡΈਐΊΔɻ
    Χ΢ϯλΛΠϯΫϦϝϯτ͢ΔॲཧͳͲΛ࣮૷
    Χ΢ϯλ࣌఺Ͱͷ؀ڥ৘ใΛ-JOFͰฦ͢
    ·͋Ͱ΋JOUFSGBDF\^͸Ͳ͏͔ͳ͋ɻ
    จࣈྻΛѻ͏ͱܾΊͯ4DBOOFS͕
    ͦͷ··࢖͑ΔΑ͏ʹͨ͠΄͏͕ศར͔΋
    

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16. • ActorͱActionͷ࣮૷
    16
    StageͰίϯϐϡʔλγϛϡϨʔγϣϯʢ2/3ʣ
    "DUJPOͷ4USJOH
    ͕ϩάʹग़ྗ͞ΕΔ
    -JOFʹର͢ΔৼΔ෣͍Λ࣮૷ɻ
    ԋٕͷ݁ՌΛ"DUJPOͱͯ͠ฦ͢
    

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17. • ࣮ߦ
    17
    StageͰίϯϐϡʔλγϛϡϨʔγϣϯʢ3/3ʣ
    ࣮ߦճ਺ͱฒྻ਺ɺॳظ
    ཚ਺γʔυΛࢦఆ
    ։࢝࣌ࠁ୯ҐͰ࣮ߦ͝ͱͷϩάͱཚ਺γʔυΛه࿥
    

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18. • ΠςϨʔγϣϯ׬ྃ͝ͱʹݺ͹ΕΔίʔϧόοΫͷ࢓૊ΈΛ༻ҙͯ͠㽂
    18
    StageͰίϯϐϡʔλγϛϡϨʔγϣϯʢਐḿ؂ࢹʣ
    

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19. ෳ਺ͷγφϦΦΛ࣋ͭ
    γϛϡϨʔγϣϯͷྫ
    

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20. γϛϡϨʔγϣϯͷྫ
    20
    • มԽݕग़ͷΞϧΰϦζϜʢADWINʣʹର͢ΔγϛϡϨʔγϣϯ
    • ࣌ܥྻͷมԽͷ౓߹͍ʢٸܹɺΏͬ͘Γʣʹରͯ͠ΞϧΰϦζϜΛධՁ
    γφϦΦͰهड़
    γφϦΦʹର͢Δԋٕ
    

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21. γϛϡϨʔγϣϯͷྫ
    21
    Scenario (Abrupt change) Scenario (Gradual change)
    Actor (ADWIN)
    Action ({x, mu, sum, W})
    • มԽݕग़ͷΞϧΰϦζϜʢADWINʣʹର͢ΔγϛϡϨʔγϣϯ
    • ࣌ܥྻͷมԽͷ౓߹͍ʢٸܹɺΏͬ͘Γʣʹରͯ͠ΞϧΰϦζϜΛධՁ
    

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22. γϛϡϨʔγϣϯͷྫ
    22
    Scenario (Abrupt change) Scenario (Gradual change)
    

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23. γϛϡϨʔγϣϯͷྫʢΞϧΰϦζϜͷ௥Ճʣ
    23
    Scenario (Abrupt change) Scenario (Gradual change)
    Actor (ADWIN) Actor (ADWIN2)
    Action ({x, mu, sum, W})
    • มԽݕग़ͷΞϧΰϦζϜʢADWINʣʹର͢ΔγϛϡϨʔγϣϯ
    • ࣌ܥྻͷมԽͷ౓߹͍ʢٸܹɺΏͬ͘Γʣʹରͯ͠ΞϧΰϦζϜΛධՁ
    

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24. 3.
    ·ͱΊ
    

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25. • ࣌ܥྻΛѻ͏ίϯϐϡʔλγϛϡϨʔγϣϯ༻ͷγϯϓϧͳϑϨʔϜϫʔΫ
    StageΛGoݴޠͰ࣮૷ͨ͠
    • ֤γϛϡϨʔγϣϯʹ͓͍ͯγφϦΦͱΞΫλʔͱ͍͏ཁૉͷΈΛҙࣝ͢Ε͹
    Α͘ͳΓ࣮૷ͷޮ཰͕֨ஈʹ্͕Γίʔυͷݟ௨͠΋Α͘ͳͬͨ
    • GoݴޠΛ࢖͏͜ͱͰฒྻԽ͕༰қʹ࣮૷Ͱ͖γϯϓϧͳϑϨʔϜϫʔΫͰ͋
    Γͳ͕Βे෼ʹ҆ఆͯ͠ߴ଎ԽΛୡ੒Ͱ͖ͨ
    • ෇Ճతͳར఺ͱͯ͠ɺϩάߏ੒ͳͲ͕౷Ұ͞Εͨ͜ͱͰޙஈͷղੳ΍άϥϑԽ
    ͷεΫϦϓτ΋ڞ௨Խ͕ਐΜͰ͍Δ
    25
    ·ͱΊ
    

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26. 4.
    ͓·͚
    

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27. • γφϦΦɺΞΫλʔ͚࣮ͩ૷ͯ͠΋ͦΕΛ੾Γସ͑ΔίϚϯυϥΠϯΦϓγϣ
    ϯΛॻ͍ͯɺՄࢹԽ༻ͷεΫϦϓτʹΦϓγϣϯ௥Ճͯ͠ɺͦΕΛ·ͱΊΔ
    γΣϧεΫϦϓτʹ΋Φϓγϣϯ౉ͤΔΑ͏ʹͯ͠…
    27
    ίϚϯυϥΠϯΦϓγϣϯʹΑΔڍಈมߋͷ࣮૷
    ֤ݴޠͰͷίϚϯυϥΠϯύʔαʔͷॻ֮ࣜ͑ͯͳ͍໰୊
    

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28. • Fukuoka.go#14Ͱ΋঺հͨ͠
    • ίϚϯυϥΠϯΦϓγϣϯΛύʔε͢ΔίʔυΛίϚϯυϥΠϯΦϓγϣϯ͔
    Βੜ੒͢Δπʔϧ
    28
    monochromegane/flagen
    https://github.com/monochromegane/flagen
    

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29. Example of Go (preset template)
    29
    $ flagen go --dist erlang -e k/l --lambda 1.5 -k 1 -v
    var (
    dist string
    e string
    lambda float64
    k int
    v bool
    )
    func init() {
    flag.StringVar(&dist, "dist", "erlang", "usage of dist")
    flag.StringVar(&e, "e", "k/l", "usage of e")
    flag.Float64Var(&lambda, "lambda", 1.5, "usage of lambda")
    flag.IntVar(&k, "k", 1, "usage of k")
    flag.BoolVar(&v, "v", false, "usage of v")
    }
    ίϚϯυϥΠϯΦϓγϣϯ໊͔Βม਺໊Λੜ੒
    ίϚϯυϥΠϯΦϓγϣϯ஋͔ΒܕΛਪଌ
    ࣮ࡍʹ࢖༻͢ΔίϚϯυϥΠϯΦϓγϣϯ͔Β
    ίϚϯυϥΠϯͷղੳॲཧΛੜ੒
    

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30. Example of Python (preset template)
    30
    $ flagen py --dist erlang -e k/l --lambda 1.5 -k 1 -v
    import argparse
    parser = argparse.ArgumentParser()
    parser.add_argument("--dist", default="erlang", help="Help of dist")
    parser.add_argument("-e", default="k/l", help="Help of e")
    parser.add_argument("--lambda", type=float, default=1.5, help="Help of lambda")
    parser.add_argument("-k", type=int, default=1, help="Help of k")
    parser.add_argument("-v", action="store_false", help="Help of v")
    args = parser.parse_args()
    ϋϚΓ͕ͪͳ1ZUIPOͷCPPMͷσϑΥϧτ஋ͷઃఆ΋
    ϘΠϥʔςϯϓϨʔτͳͷͰେৎ෉
    

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31. Example of Ruby (preset template)
    31
    $ flagen rb --dist erlang -e k/l --lambda 1.5 -k 1 -v
    require 'optparse'
    opts = {
    dist: 'erlang',
    e: 'k/l',
    lambda: 1.5,
    k: 1,
    v: false,
    }
    OptionParser.new do |op|
    op.on('--dist [VALUE]', 'Desc of dist') {|v| opts[:dist] = v }
    op.on('-e [VALUE]', 'Desc of e') {|v| opts[:e] = v }
    op.on('--lambda [VALUE]', 'Desc of lambda') {|v| opts[:lambda] = v.to_f }
    op.on('-k [VALUE]', 'Desc of k') {|v| opts[:k] = v.to_i }
    op.on('-v', 'Desc of v') {|v| opts[:v] = v }
    op.parse!(ARGV)
    end
    

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32. Example of Shell (preset template)
    32
    $ flagen sh --dist erlang -e k/l --lambda 1.5 -k 1 -v
    E="k/l"
    K="1"
    V="FALSE"
    while getopts e:k:v OPT
    do
    case $OPT in
    "e" ) E="$OPTARG";;
    "k" ) K="$OPTARG";;
    "v" ) V="TRUE";;
    esac
    done
    shift `expr $OPTIND - 1`
    HFUPQUT͸ҰจࣈͷҾ਺͚ͩѻ͑ΔͷͰ௕͍Φϓγϣϯ͸ແࢹ
    

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33. • flagenΛΤσΟλͱ࿈ܞ͢Δ
    • ྫ͑͹VimͰ͸ҎԼʹΑΓɺΧʔιϧҐஔʹ݁ՌΛૠೖ͢Δ͜ͱ͕Ͱ͖Δɻ
    ʢಈతͳίʔυεχϖοτͱͯ͠ͷར༻ʣ
    33
    Collaboration
    :r!flagen YOUR_TEMPLATE YOUR_COMMAND_LINE_OPTIONS...
    

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