User&DeveloperSurvey2019

ViralB.ShahAndrewClaster

Abhijith Chandraprabhu

2

Methodology

Weconducted1,834interviewsonlineamongJuliausersanddevelopersJune12-24,2019

Marginoferroris+/- 2.3percentagepoints

WerecruitedrespondentsonlineusingSlack,Discourse,Twitter,email,JuliaLang.organdJuliaComputing.com

ThesurveywasadministeredonlyinEnglish,butmorethanhalfofrespondentscomefromnon-Englishspeakingcountries

3

56%ofRespondentsUseJuliaa‘GreatDeal’While38%UseJulia‘Some’PythonandBash/Shell/PowerShellare2nd and3rd amongJuliaUsersandDevelopers

Howfrequentlydoyouuseeachofthefollowinglanguages?

1%

2%

5%

6%

11%

15%

8%

11%

16%

23%

39%

56%

5%

6%

13%

21%

23%

23%

32%

29%

27%

46%

42%

38%

6%

8%

18%

27%

34%

38%

40%

40%

43%

69%

81%

94%

Scala

C#

Java

JavaScript

SQL

R

C

C++

MATLAB

Bash/Shell/PowerShell

Python

Julia

Greatdeal Some

4

93%ofRespondentsLikeJuliaorSayJuliaIsOneofTheirFavoriteLanguagesPythonComesSecondAmongJuliaUsersandDevelopers

Howmuchdoyoulikeeachofthefollowinglanguages?

2%

2%

2%

2%

3%

4%

6%

8%

9%

6%

26%

73%

5%

7%

8%

9%

13%

18%

17%

15%

14%

21%

35%

20%

7%

9%

10%

11%

16%

22%

23%

23%

23%

27%

61%

93%

Scala

C#

Java

JavaScript

SQL

Bash/Shell/PowerShell

C++

Matlab

R

C

Python

Julia

Oneofmyfavoritelanguages Like

5

TheMOSTPopularTECHNICALFeaturesofJuliaAreSpeed/Performance,EaseofUse,OpenSource,MultipleDispatchandSolvingtheTwoLanguageProblem

ThinkingonlyabouttheTECHNICALaspectsorfeaturesofJulia,whataretheTECHNICALaspectsorfeaturesyoulikeMOSTaboutJulia?

20%

21%

21%

21%

50%

52%

67%

71%

85%

One-basedindexing

Specificpackage(s)

Integrateswellwithotherlanguage(s)

EditorandIDEsupport(Emacs,Vi,Juno,VSCode)

Solvesthetwolanguageproblem

Multipledispatch

Opensourcecodeisavailableandcanbe

modified

Easeofuse

Speed,performance

6

TheMOSTPopularNON-TECHNICALFeaturesofJuliaAreFree(Don’tHavetoPay)andActiveandTalentedCommunityofJuliaDevelopers

ThinkingonlyabouttheNON-TECHNICALaspectsorfeaturesofJulia,whataretheNON-TECHNICALaspectsorfeaturesyoulikeMOST aboutJulia?

18%

29%

36%

37%

37%

41%

41%

56%

83%

Lotsofgreatteachingandlearningresourcesavailableonline

Easytocontributetothelanguage

Learninganewlanguage,Ilikelearningnewlanguages

Juliacommunityofdevelopersiswarmand

welcoming

Easytogethelpandinformationonline

MITlicense

Easytocreatepackages

Juliacommunityofdevelopersistalentedand

active

Free- don'thavetopaytouseJulia

7

TheBiggestTECHNICALPROBLEMSwithJuliaArethatPackagesAren’tAsMatureorWell-MaintainedasNeededandItTakesTooLongtoGeneratetheFirstPlot

ThinkingonlyabouttheTECHNICALaspectsorfeaturesofJulia,whataretheTECHNICALaspectsorfeaturesyoulikeLEASTaboutJulia?

3%

6%

8%

12%

13%

17%

21%

24%

25%

28%

33%

35%

41%

42%

Doesnotintegratewellwithotherlanguages

IdonotfeelJuliaiswell-suitedtocertaintasks

One-basedindexing

Bugs

Irequirepackages,librariesortoolsthatareonlyavailableoraremorecompletein

anotherlanguage

Notstableenough

Thedebuggeristooslowand/ornotfullyfeatured

Immature

PooreditorandIDEsupport

Doesn'thaveallthepackagesIneed

Slowcompiletimes

Cannotgenerateself-containedbinariesorlibrariessuchas.exe,.dll,.so,etc.

Ittakestoolongtogeneratethefirstplot

Packagesaren'tasmatureoraswell-maintainedasIneed

8

TheBiggestNON-TECHNICALPROBLEMSwithJuliaAreRelatedtoAdoption:TooManyColleagues,CollaboratorsandOthersDon’tUseJulia

ThinkingonlyabouttheNON-TECHNICALaspectsorfeaturesofJulia,whataretheNON-TECHNICALaspectsorfeaturesyoulikeLEASTaboutJulia?

1%

1%

2%

3%

8%

11%

15%

16%

23%

27%

28%

36%

40%

Don'tlikelearninganewlanguage

Ienjoyexploringotherlanguages

Juliacommunityistooclosedandnotwelcomingenough

Juliacommunityisnotactiveenough

Iammorecomfortableinanotherlanguage

Ihavemoreexperiencewithanotherlanguage

TherearetoomanythingsIdon'tknowhowtodoinJulia

Therearenotenoughteachingandlearningresourcesavailableonline

Insufficientdocumentation

Mycompany,university,clientsorotherorganizationsIworkwithdonotuseor

supportJulia

TherearenotenoughJuliausersingeneral

TherearenotenoughJuliausersinmyfieldorindustry

Mycolleagues,companyorcollaboratorsuseotherlanguages

9

IfNotforJulia,MostWouldBeUsingPython,FollowedbyC/C++/C#,MATLABandR

ThinkingaboutthetasksforwhichyouuseJulia,ifyouweren’tusingJuliaforthesetasks,whatprogramminglanguagewould youbeusing?

3%

4%

4%

6%

9%

27%

35%

42%

73%

Scala

SQL

JavaScript

Fortran

Bash/Shell

R

MATLAB

C,C++,C#

Python

10

RespondentsStartedUsingJuliaBecauseofSpeedandBecauseJuliaSeemsLiketheLanguageoftheFuture

WhydidyoustartusingJulia?

6%

6%

7%

9%

26%

36%

40%

43%

52%

MyinstructororacourseIwantedtotakeusesJulia

ColleaguesinmyfielduseJuliaandIwanttocollaboratewiththem

Ineedorwantaspecificfeature

BetterpackagesfortheworkIamdoing

Preferablesyntaxtootherlanguages

IheardaboutJuliafromfriendsorcolleaguesandIwantedtotryitout

Ilikelearningnewlanguages

FasterfortheworkIamdoing

Juliaseemslikethelanguageofthefuture

11

MostUseJuliaforResearchandIndividualWork

WhichofthefollowingbestdescribeyouruseofJulia?

2%

10%

15%

16%

54%

73%

IuseJuliabecauseitisrequiredforclassesatmy

university

IuseJuliainproductionforabusinesscriticaltask

IuseJuliafordevelopmentaspartofateam

IuseJuliaforteaching

IuseJuliaforworkindividually

IuseJuliaforresearch

12

MostStartedUsingJuliaintheLast1-5Years

WhendidyoufirststartusingJulia?

1% 2%

5%

10%

14% 13%

17%

23%

9%

2011 2012 2013 2014 2015 2016 2017 2018 2019

13

NearlyHalfDoAtLeastHalfTheirProgramminginJulia

WhatpercentageoftheprogrammingworkyoudoisinJulia?ROUNDEDTONEAREST5%

8%

9% 10%

2%

5% 5% 4%

1%

2%

0%

11%

0%

2%

1%

2%

4%

8%

1%

8%

4% 4%

0% 5% 10% 15% 20% 25% 30% 35% 40% 45% 50% 55% 60% 65% 70% 75% 80% 85% 90% 95% 100%

45%UseJuliaForAtLeastHalfTheirWork

14

TheMostPopularJuliaPackagesArePlots.jl,DataFrames.jl andIJulia.jl

WhataresomeofyourfavoriteJuliapackages?

4% 4% 4%

5% 6% 6% 6% 6%

7% 7% 7%

8% 8% 8% 8%

9% 10% 10% 10%

12% 12% 12%

15% 17%

19% 20%

22% 24%

26% 34%

38% 47%

Turing.jlKnet.jlCxx.jl

Convex.jlUnicodePlots.jlTensorFlow.jlStatsFuns.jl

PackageCompiler.jlGLM.jl

Zygote.jlRCall.jl

LightGraphs.jlCUDAnative.jl

JuliaDB.jlMakie.jl

Documenter.jlCuArrays.jlImages.jl

StatsPlots.jlFFTW.jlGadfly.jl

ForwardDiff.jlOptim.jlRevise.jlJuMP.jlFlux.jl

PyCall.jlDifferentialEquations.jl

Distributions.jlIJulia.jl

DataFrames.jlPlots.jl

15

MostSaytheCurrentJuliaPackageEnvironmentIs‘Somewhat’Robust

HowrobustisthecurrentJuliapackageenvironment?

14%

55%

14%

2%

10%

Very Somewhat Notvery Notatall Don'tknow

16

AtomandVSCodeAretheMostPopularEditorsorIDEs

WhicheditorsorIDEsdoyouusefrequently?

6%

9%

11%

14%

24%

25%

25%

31%

41%

IntelliJ

Notepad++

SublimeText

Emacs

Vi/Vim

JupyterLab

Juno

VSCode

Atom

17

MostDoNotUseJuliawithCloudSolutions- ThoseWhoDoUseJuliaBox orAWS

Whichcloudsolutions,ifany,doyouusetogetherwithJulia?

2%

3%

3%

4%

10%

15%

56%

REPL.it

GoogleColab

Azure

GoogleCloud

AWS

JuliaBox

None

18

MostSaytheJuliaCommunityIs‘Very’or‘Somewhat’HelpfulandCollaborative

HowhelpfulandcollaborativeistheJuliacommunity?

47%

29%

2% 0%

16%

Very Somewhat Notvery Notatall Don'tknow

19

MostHaveAttendedJuliaCon,WillLikelyAttendorWouldLiketoAttend

HaveyouattendedordoyouplantoattendJuliaCon?

1% 2% 3% 4% 6% 6%

14%

50%

23%

2014- Chicago 2015- Boston 2016- Boston 2017- Berkeley 2018- London 2019- Baltimore Willlikelyattendinfuture

Wouldliketoattendiffunds,scheduleandlocationpermit

Unlikelytoattendinfuture

20

MostDownloadedorInstalledBinariesfromJuliaLang.org

HowdidyoudownloadorinstalltheJuliaversionyouusemostfrequently?

2%

4%

7%

12%

12%

17%

70%

OfficialDockercontainer

JuliaBox

FromHomebrewcaskonMac

JuliaPro

FrommyLinuxdistribution

IcompileJuliafromsource

BinariesfromJuliaLang.org

21

MostUseJuliawithLinux/x86

Withwhichoperatingsystem(s)doyouuseJulia?

4%

36%

40%

62%

Linux/ARM

macOS

Windows

Linux/x86

22

MostDoNotUseJuliawithHardwareAccelerators– ThoseWhoDoUseNvidiaGPUs

Whichhardwareaccelerators,ifany,doyouusetogetherwithJulia?

2%

3%

4%

5%

13%

20%

54%

GoogleTPU

Distributedcluster

MultipleNvidiaGPUs

AMDGPU

NvidiaGPU- released2+yearsago

NvidiaGPU- releasedinlast2years

None

23

MostRespondentsAreAcademics(60%)

Whichofthefollowingbestdescribesyou?

60%

43%

Academic Professional

24

AmongAcademics,MostRespondentsAreGraduateorPostgraduateStudentsorResearchers

AMONGACADEMICS:Areyoua(n):

56%

34%

11%

Graduateorpostgraduatestudentorresearcher Instructor Undergraduatestudentorresearcher

25

AmongProfessionals,MostRespondentsAreEngineersorDevelopers

AMONGPROFESSIONALS:Areyoua(n):

61%

45%

20%

11%

4%

Engineer,developer Researcher Analyst Manager Productmanager

26

TheMostPopularFieldsAreStatistics,DataScience,Engineering,MachineLearning,ComputerScience,Physics,Mathematics,ArtificialIntelligence,OptimizationandSignalandImageProcessing

Whatisyourprimaryfield?

1% 1%

2% 2% 2% 2%

3% 3%

4% 4%

5% 5%

6% 7% 7%

11% 11%

14% 16% 16%

17% 19%

20% 24%

GeneticsPharmaceuticals

AstronomyChemistry

ClimatescienceManufacturing

MedicineSupercomputing

EnergyRobotics

ComputervisionGeoscience

FinanceBiology

EconomicsOptimization

SignalandimageprocessingArtificialintelligence

MathematicsPhysics

ComputerscienceMachinelearning

EngineeringStatistics,datascience

27

MostProfessionalRespondentsHave10YearsProfessionalExperienceorLess

AMONGPROFESSIONALS:Howmanyyearsofprofessionalexperiencedoyouhave?ROUNDEDTONEAREST5YEARS

17%

28%

14%

9% 9%

5% 5% 3%

2%

0 5 10 15 20 25 30 35 40

28

MostAreAge25-45,butManyAreAge60+

Whatisyourage?ROUNDEDTONEAREST5YEARS

5%

18% 20%

14%

9% 8%

6% 4% 4%

2% 1%

20 25 30 35 40 45 50 55 60 65 70

29

RespondentsComefromMorethan90Countries

Whatisthecountrywhereyouareoriginallyfrom?

1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1%

2% 2% 2% 2% 2%

3% 3% 3% 3% 3% 3%

4% 4%

9% 22%

TaiwanRomaniaTurkey

IranHungary

ArgentinaNewZealand

PortugalCzechRepublic

NorwayGreece

ColombiaIsrael

SouthAfricaDenmark

SwitzerlandAustriaSpain

NetherlandsPolandBelgiumMexicoJapanRussia

SwedenChinaItaly

AustraliaCanadaIndia

UnitedKingdomFranceBrazil

GermanyUnitedStates

Respondentsalsocomefrom:Philippines,Chile,Slovakia,HongKong,Indonesia,Ukraine,SouthKorea,Venezuela,Luxembourg,Finland,Ireland,Bangladesh,Nigeria,Singapore,Slovenia,Peru,Nepal,Lithuania,SouthKorea,Malaysia,Bolivia,Georgia,Lebanon,Egypt,Bulgaria,Algeria,WestBankandGaza,Estonia,Iceland,Vietnam,Cyprus,Kazakhstan,Uganda,Monaco,Uruguay,Serbia,Togo,Timor-Leste,CapeVerde,Ecuador,DominicanRepublic,Cuba,Thailand,Morocco,BosniaandHerzegovina,Kenya,Macedonia,Guinea-Bissau,Belarus,SriLanka,Moldova,Kuwait,Zimbabwe,Croatia,SaudiArabia,CostaRica

30

RespondentsLiveinMorethan80Countries

Whatisthecountrywhereyoucurrentlive?

1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1%

2% 2% 2% 2% 2% 2% 2% 2% 2%

3% 3%

4% 4%

5% 9% 30%

SingaporeColombia

IsraelNewZealand

PortugalCzechRepublic

SouthAfricaPolandNorwayChina

DenmarkAustriaBelgium

ItalyNetherlands

MexicoSpainIndia

RussiaSweden

SwitzerlandJapanBrazil

AustraliaCanadaFrance

UnitedKingdomGermany

UnitedStates

Respondentsalsolivein:Sudan,Algeria,Swaziland,Qatar,Uganda,Belarus,Malta,Croatia,Georgia,Morocco,Kenya,Vietnam,Burundi,Nigeria,Iran,Cyprus,Greece,SriLanka,CostaRica,Ecuador,Venezuela,Estonia,Thailand,Uruguay,Bolivia,Bulgaria,Kuwait,Iceland,Egypt,Malaysia,UnitedArabEmirates,Kazakhstan,Slovenia,SouthKorea,Ukraine,Peru,Lithuania,Luxembourg,Bangladesh,HongKong,Taiwan,Romania,Slovakia,Finland,Indonesia,Hungary,Argentina,Philippines,Chile,Ireland,Turkey

31

RespondentsAreFluentInMorethan60Languages

Inwhatlanguage(s)areyoufluent?

1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 2% 2% 2% 3% 3% 3% 4% 4% 5% 6%

11% 15%

17% 90%

TamilGreek

AfrikaansRomanianHebrew

FarsiTurkishKoreanBengaliTeluguArabicCzech

HungarianNorwegian

HindiPolish

SwedishJapanese

DutchChinese(Mandarin)

RussianPortuguese

ItalianSpanishFrench

GermanEnglish

Respondentsarealsofluentin:Kannada,Lithuanian,Estonian,Nepali,Swahili,Marathi,Luxembourgish,Cantonese,Ukrainian,Finnish,Tagalog,Georgian,Swabian,Catalan,Indonesian,Korean,Vietnamese,Danish,Thai,Slovenian,Slovakian,Serbian,Urdu,Bosnian,Croatian,Udmurt,Icelandic,Latin,Malayalam,Kazakh,Gujarati,Oriya,Esperanto,Punjabi,Macedonian,AmericanSignLanguage

32

66%IdentifyasWhite,13%asAsian,7%Hispanic,2%MiddleEasternand1%Black

Whichofthefollowingbestdescribesyourraceorethnicity?

66%

13%

7% 2% 1%

13%

White Asian Hispanic MiddleEastern Black Declinetoanswer

33

85%IdentifyasMen,3%IdentifyasWomenand12%DeclinetoAnswer

Areyoua:

85%

3%

12%

Man Woman Declinetoanswer

34

4%IdentifyasLGBTQ

DoyouidentifyasLGBTQ?

4%

79%

17%

Yes No Declinetoanswer

35

AmongThoseWhoAnsweredthisQuestion(81%ofRespondents),20%IdentifyasUnderrepresentedinScienceorComputing

Doyouidentifyasunderrepresentedinscienceorcomputingbecauseofyour:

5% 4% 3% 3% 2% 2% 1% 1% 1%

65%

19%

Race,ethnicityornaturalorigin

Parents'educationlevel

Incomeorsocioeconomic

status

Age Educationlevel Gender Disability Sexualidentity Religion Idonotidentifyasunderrepresented

inscienceorcomputing

Declinetoanswer

36

Howtoimprovediversity?

DiversityandInclusioninJuliaCommunityWednesday,14:30–15:30,BOF

RaisingDiversity&InclusionamongJuliausersWednesday,15:45–17:45,ElmB