computer systems and networks · 2019-01-10 · computer systems and networks lecture 1:...

Computer Systems and Networks

LECTURE 1: INTRODUCTION AUGUST 28TH 2018

Dr.Pallipuram(Section1)([email protected])

University of the Pacific

Our Course Goals

Looks familiar?

How does a computer system execute this game? Let’s take a look at a bottom-up

picture

Bottom Up Picture

Memory cell Transistor

Level0:ElectronicsandCircuits(ECPE41,

131)

Bottom Up Picture


131)

Level1:DigitalDesign(ECPE71,174)

What does it do? Write first few sequences

Bottom Up Picture


131)

Level1:DigitalDesign(ECPE71,174)

How about this one?

Level2:ComputerOrganization(ECPE173)

Level0:ElectronicsandCircuits(ECPE41,131)

Level1:DigitalDesign(ECPE71,ECPE174)


Level3:Machinelevel(forARM,Intel,etc.)ECPE173




Level3:Machinelevel(ARM,Intel,etc.)ECPE173

Level4:OperatingSystemslevel




Level3:Machinelevel(ARM,Intel,etc.)ECPE173

Level4:OperatingSystemslevel

Level5:Assemblyprogramminglevel,humanreadable(MIPSAssembly)Assemblerstranslatethemtomachinelang.

Level6:High-LevelLanguage(C,C++,etc.)

Level7:UserApplication(e.g.:AgeofEmpires)

ECPE 170

Course Goals  Whatdoyou,asaprogrammer,needtoknowabouttheunderlyingsystem(softwareandhardware)towritemoreefficientcode?◦ Roleofthetools◦ Compiler,assembler,linker,profiler

◦ Roleoftheoperatingsystemanditsefficientusage◦ Assemblyprogramming(usingtheCPUefficiently)◦ Memoryhierarchyanditsimpactonperformance

C Programming Language

CWhy not Python, Java, Ruby, Perl, PHP, …?

High-level languages (especially interpreted, managed code…) try to hide the underlying machine from you

ECPE 170 wants to reveal the underlying machine to you!

Bay area companies want more C

Linux

 Coursewillbetaught100%inLinux

Feedback from co-op employers and graduates: “More Linux/Unix skills please!”

Software companies work with some version of Unix. Why?

Virtual Machine

 Coursewillbetaught100%fromavirtualmachinebootingLinuxthatyouinstall! Couldn’tyoujustgiveusremoteaccesstoaserversomeplacethatisalreadyconfigured?

 Yes,but…◦  Byinstallingityourselfyouwillhavetheskillstouseitagaininthefuture

◦  Nomysterious“ProfessorPallipuram”softwareconfiguration

Version Control

 Coursewilluseversioncontrol!◦  Onlywaytogetlabcodeorturninassignments

 DidyouhavetomandateVCSforECPE170?

 No,notreally,but…◦  ToomanyPacificgraduateswereavoidinglearningthisontheirown!

◦  Feedbackfromco-opemployersandgraduates:“Onlyn00bsworkwithoutversioncontrol!”

◦  Usedeverywhere:Sourcecodeofallkinds!(C++,Python,Matlab,VHDL/Verilog,…)

Course Mechanics

Websites

• http://ecs-network.serv.pacific.edu/ecpe-170

Mainwebsite(syllabus,schedule)

• http://canvas.pacific.edu

Canvaswebsite(gradebook)

• http://bitbucket.org

Bitbucket.org(versioncontrol)

Textbook  Noofficialtextbook Optionalreferencebooks(usefulforthisclassandbeyond)◦  TheCProgrammingLanguage,2ndEdition

◦  SeeMIPSRun,2ndEdition

Grading  30%-Exams◦  15%-Mid-termexam◦  15%-Finalexam

 65%-Labs◦  Pointsassignedtoeachlabwillvarybasedoncomplexity◦  Eachlabbeginsasanin-classactivity◦  Unfinishedworkbecomeshomework/project◦  Labsarelarge–assume“theusual”amountofhomework/projectsfora4-creditclass

◦  Tip:Thebeststudentslastsemesterstartedthelabsoutsideofclass,andfinishedthemasanin-classactivity

◦  2%penaltyperlateday.Nomorethan7latedays

 5%-In-classparticipation 

Class Attendance – See schedule on the website

Strong attendance requirement may entail significant portion covered in the lecture and/or in-class participation problem

Moderate attendance requirement entails significant lab activity Must be present for at least one hour of work Skip no more than two consecutive moderate classes

Recommended attendance requirement entails that students have the option of performing their work outside of the class, as long as they are confident in performing the required task on their own.

Honor Code  Allassignmentsaresubmittedindividually EncouragedActivities◦ Collaboratingwithyourclassmates(askingquestions,solvingproblemstogether)

◦ Searchingforsolutionsonline◦  Providedcodecopieddoesnotexceed25%oftotalassignmentlength◦  Providedyouclearlydocumentthiscopyinyoursourcecodeandlabreport◦ Whatdidyoucopy?Wherediditcomefrom?

Honor Code  RiskyActivities◦ Havingyourclassmatestypeonyourcomputerorassignmentfile

 ForbiddenActivities◦  Copyingsomeone’sworkverbatim(classmateorotherwise)◦  Copyingsomeone’sworkandobfuscatingitssource

 NOTE:Yourcodewillbecheckedforsimilaritywithothersubmissions.Morethan30%matchonanon-trivialcodeisaredflag.

Lab Topics 1.  Linux2.  VersionControl3.  CProgramming4.  CProgrammingProject5.  Performance

Measurement6.  PerformanceOptimization

(compilerandprogrammertechniques)

7.  PerformanceOptimization(Memorysystems)

8.  NetworkProgramming1(Python)

9.  NetworkProgramming2

10. AssemblyProgramming1(MIPS)

11. AssemblyProgramming212. AssemblyProgramming3

Lab 1 - Linux

Homework  Beforethenextclass1.  Skim“VirtualMachineSetup”tutorialinstructionsonwebsite◦  http://ecs-network.serv.pacific.edu/ecpe-170/tutorials/vm_setup

2.  Decideonwhatcomputersystemyouwanttouseforthisclass

3.  Downloadallsoftware◦  Virtualmachineinstaller(VMWarePlayer)◦  Linux.isoimage(installer)–64-bitversion

Next Class - Linux Installfest  TutorialDay Objectives◦ Followthe“VirtualMachineSetup”tutorialfromwebsitetoinstallLinux

◦ Debugindividualproblemsifneeded◦ VerifyOSworks◦ Emailmescreenshotasproofofsuccess

Next Class - Linux Installfest  Iwantyoutobecomfortableasprofessionalsworkingindependentlytosolveproblems

 Ifyoucompletethe“VirtualMachineSetup”tutorialindependently(andemailmeascreenshotbyThursdaymorning),youdon’tneedtoattendThursday’sclass.Sleepin!(Orcomehelpout)

 Iwillstillbeheretoanswerallquestionsandsolveproblems

Next Class - Linux Installfest  Warning:Don’tskipclassThursday,andthentellmenextTuesdayatLab#1thatyourOSdoesn’twork!

Lab 1 - Linux  ThefirstlabisnextTuesday◦  Topic:Linux◦  Crashcourseincommand-lineusage

 Lab1:Pre-Lab◦  ShowmetheworkingcommandpromptinyourLinuxinstall.Hopefullyyouwillhavethisdonebyend-of-classThursday

◦  Pre-Labisdueatthestartofthelab

Bring Laptop!

Every class – bring your laptop!

Questions?

computer systems and networks · 2019-01-10 · computer systems and networks lecture 1:...

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