110 http://isa.epfl.ch/imoniteur_ISAP/ itffichecours.txt?path=EPFL.Etu.FicheCours.HeaderFR itffichecours.txt?path=EPFL.Etu.FicheCours.GlobalNav_js fr 2026 946228 6683147 946228 2840683608 2840683608 0 0 Systemes de communication SC IC Faculté informatique et communications School of Computer and Communication Sciences !itffichecours.htm?ww_i_matiere=3520381054&ww_x_anneeAcad=2840683608&ww_i_section=946228&ww_i_niveau=6683147 1696552884 1696552963 2025-2026 COURSE BOOKLET CS-453 Concurrent computing Concurrent computing Lecturers Guerraoui Rachid Language of teaching English Cursus Communication Systems - master program(2025-2026, SC - Master EPFL 2024)
Communication Systems - master program(2025-2026, SC - Master EPFL 2025)
Computer Science - Cybersecurity(2025-2026, IN-CS - Master 2024)
Computer Science - Cybersecurity(2025-2026, IN-CS - Master 2025)
Computer Science(2025-2026, IN - Master 2024)
Computer Science(2025-2026, IN - Master 2025)
Data Science(2025-2026, SC_DS - Master 2024)
Data Science(2025-2026, SC_DS - Master 2025)
SemesterMand.OptionFilières
MA1, MA3x
MA1, MA3xC G I L M
MA1, MA3xC G I
 Credits 6 Session Winter Workload 180h Exam Written Number of positions Semester Fall Weeks 14 Hours 5 weekly
Courses 2 weekly
Exercises 1 weekly
Lab 2 weekly
Study planSemesterMand.OptionFilières
Cyber security 2025-26MA1x
Cyber security 2025-26MA3x
Data Science 2025-26MA1x
Data Science 2025-26MA3x
Informatique 2025-26MA1xC G I L M
Informatique 2025-26MA3xC G I L M
Systèmes de communication 2025-26MA1xC G I
Systèmes de communication 2025-26MA3xC G I
Cursus Sem. Type
Computer science MA1, MA3 Opt.
Cybersecurity MA1, MA3 Opt.
Data Science MA1, MA3 Opt.
SC master EPFL MA1, MA3 Opt.
Summary With the advent of modern architectures, it becomes crucial to master the underlying algorithmics of concurrency. The objective of this course is to study the foundations of concurrent algorithms and in particular the techniques that enable the construction of robust such algorithms. Content

Model of a parallel system


Multicore and multiprocessors architecture

 


Processes and objects

 


Safety and liveness

 

Parallel programming


Automatic parallelism


Mutual exclusion and locks


Non-blocking data structures

 

Register Implementations


Safe, regular and atomic registers

Counters General and limited operations

Atomic counters and snapshots

 

Hierarchy of objects


The FLP impossibility


The consensus number


Universal constructions

 

Transactional memories


Transactional algorithms


Opacity and obstruction-freedom

 

Anonymous computing

 

Fault-tolerant shared-memory computing

 

 Keywords

Concurrency, parallelism, algorithms, data structures

 Learning Prerequisites Required courses

ICC, Operating systems

 Recommended courses

This course is complementary to the Distributed Algorithms course

 Important concepts to start the course

Processes, threads, datas structures

 Learning Outcomes By the end of the course, the student must be able to:
  • Reason in a precise manner about concurrency
  • Design a concurrent algorithm
  • Prove a concurrent algorithm
  • Implement a concurrent system
 Teaching methods

Lectures, exercises and practical work

 Expected student activities

Final exam

Project

 Assessment methods

Final exam (theory) and project (practice)

 Resources Notes/Handbook

Algorithms for Concurrent Systems, R. Guerraoui and P. Kouznetsov

 Moodle Link Informatique, 2025-2026, Master semestre 1 Computer Science, 2025-2026, Master semester 1 Ecole polytechnique fédérale de Lausanne EPFL Ecole polytechnique fédérale de Lausanne EPFL 2025-2026 Master semestre 1 MA1 HIVER Master semester 1 MA1 Informatique IN Computer Science IN
Informatique IN Computer Science IN
C G I L M optionnel optional
2 Cours Courses Heure(s) hebdo x 14 semaines Hour(s) per week x 14 weeks H hebdo H hebdo Guerraoui Rachid 105326
Systèmes de communication SC Communication Systems SC
1 Exercices Exercises Heure(s) hebdo x 14 semaines Hour(s) per week x 14 weeks H hebdo H hebdo Guerraoui Rachid 105326
Systèmes de communication SC Communication Systems SC
2 Labo Lab Heure(s) hebdo x 14 semaines Hour(s) per week x 14 weeks H hebdo H hebdo Guerraoui Rachid 105326
Systèmes de communication SC Communication Systems SC
3520381054 Concurrent computing Concurrent computing 6
Ecrit Written Crédit Credits 6 Session hiver Session winter HIV HIV
Informatique, 2025-2026, Master semestre 3 Computer Science, 2025-2026, Master semester 3 Ecole polytechnique fédérale de Lausanne EPFL Ecole polytechnique fédérale de Lausanne EPFL 2025-2026 Master semestre 3 MA3 HIVER Master semester 3 MA3 Informatique IN Computer Science IN
Informatique IN Computer Science IN
C G I L M optionnel optional
2 Cours Courses Heure(s) hebdo x 14 semaines Hour(s) per week x 14 weeks H hebdo H hebdo Guerraoui Rachid 105326
Systèmes de communication SC Communication Systems SC
1 Exercices Exercises Heure(s) hebdo x 14 semaines Hour(s) per week x 14 weeks H hebdo H hebdo Guerraoui Rachid 105326
Systèmes de communication SC Communication Systems SC
2 Labo Lab Heure(s) hebdo x 14 semaines Hour(s) per week x 14 weeks H hebdo H hebdo Guerraoui Rachid 105326
Systèmes de communication SC Communication Systems SC
3520381054 Concurrent computing Concurrent computing 6
Ecrit Written Crédit Credits 6 Session hiver Session winter HIV HIV
Data Science, 2025-2026, Master semestre 1 Data Science, 2025-2026, Master semester 1 Ecole polytechnique fédérale de Lausanne EPFL Ecole polytechnique fédérale de Lausanne EPFL 2025-2026 Master semestre 1 MA1 HIVER Master semester 1 MA1 Data Science SC_DS Data Science SC_DS
Systèmes de communication SC Communication Systems SC
optionnel optional
2 Cours Courses Heure(s) hebdo x 14 semaines Hour(s) per week x 14 weeks H hebdo H hebdo Guerraoui Rachid 105326
Systèmes de communication SC Communication Systems SC
1 Exercices Exercises Heure(s) hebdo x 14 semaines Hour(s) per week x 14 weeks H hebdo H hebdo Guerraoui Rachid 105326
Systèmes de communication SC Communication Systems SC
2 Labo Lab Heure(s) hebdo x 14 semaines Hour(s) per week x 14 weeks H hebdo H hebdo Guerraoui Rachid 105326
Systèmes de communication SC Communication Systems SC
3520381054 Concurrent computing Concurrent computing 6
Ecrit Written Crédit Credits 6 Session hiver Session winter HIV HIV
Data Science, 2025-2026, Master semestre 3 Data Science, 2025-2026, Master semester 3 Ecole polytechnique fédérale de Lausanne EPFL Ecole polytechnique fédérale de Lausanne EPFL 2025-2026 Master semestre 3 MA3 HIVER Master semester 3 MA3 Data Science SC_DS Data Science SC_DS
Systèmes de communication SC Communication Systems SC
optionnel optional
2 Cours Courses Heure(s) hebdo x 14 semaines Hour(s) per week x 14 weeks H hebdo H hebdo Guerraoui Rachid 105326
Systèmes de communication SC Communication Systems SC
1 Exercices Exercises Heure(s) hebdo x 14 semaines Hour(s) per week x 14 weeks H hebdo H hebdo Guerraoui Rachid 105326
Systèmes de communication SC Communication Systems SC
2 Labo Lab Heure(s) hebdo x 14 semaines Hour(s) per week x 14 weeks H hebdo H hebdo Guerraoui Rachid 105326
Systèmes de communication SC Communication Systems SC
3520381054 Concurrent computing Concurrent computing 6
Ecrit Written Crédit Credits 6 Session hiver Session winter HIV HIV
Informatique - Cybersecurity, 2025-2026, Master semestre 1 Computer Science - Cybersecurity, 2025-2026, Master semester 1 Ecole polytechnique fédérale de Lausanne EPFL Ecole polytechnique fédérale de Lausanne EPFL 2025-2026 Master semestre 1 MA1 HIVER Master semester 1 MA1 Informatique - Cybersecurity IN_CS Computer Science - Cybersecurity IN_CS
Informatique IN Computer Science IN
optionnel optional
2 Cours Courses Heure(s) hebdo x 14 semaines Hour(s) per week x 14 weeks H hebdo H hebdo Guerraoui Rachid 105326
Systèmes de communication SC Communication Systems SC
1 Exercices Exercises Heure(s) hebdo x 14 semaines Hour(s) per week x 14 weeks H hebdo H hebdo Guerraoui Rachid 105326
Systèmes de communication SC Communication Systems SC
2 Labo Lab Heure(s) hebdo x 14 semaines Hour(s) per week x 14 weeks H hebdo H hebdo Guerraoui Rachid 105326
Systèmes de communication SC Communication Systems SC
3520381054 Concurrent computing Concurrent computing 6
Ecrit Written Crédit Credits 6 Session hiver Session winter HIV HIV
Informatique - Cybersecurity, 2025-2026, Master semestre 3 Computer Science - Cybersecurity, 2025-2026, Master semester 3 Ecole polytechnique fédérale de Lausanne EPFL Ecole polytechnique fédérale de Lausanne EPFL 2025-2026 Master semestre 3 MA3 HIVER Master semester 3 MA3 Informatique - Cybersecurity IN_CS Computer Science - Cybersecurity IN_CS
Informatique IN Computer Science IN
optionnel optional
2 Cours Courses Heure(s) hebdo x 14 semaines Hour(s) per week x 14 weeks H hebdo H hebdo Guerraoui Rachid 105326
Systèmes de communication SC Communication Systems SC
1 Exercices Exercises Heure(s) hebdo x 14 semaines Hour(s) per week x 14 weeks H hebdo H hebdo Guerraoui Rachid 105326
Systèmes de communication SC Communication Systems SC
2 Labo Lab Heure(s) hebdo x 14 semaines Hour(s) per week x 14 weeks H hebdo H hebdo Guerraoui Rachid 105326
Systèmes de communication SC Communication Systems SC
3520381054 Concurrent computing Concurrent computing 6
Ecrit Written Crédit Credits 6 Session hiver Session winter HIV HIV
Systèmes de communication - master, 2025-2026, Master semestre 1 Communication Systems - master program, 2025-2026, Master semester 1 Ecole polytechnique fédérale de Lausanne EPFL Ecole polytechnique fédérale de Lausanne EPFL 2025-2026 Master semestre 1 MA1 HIVER Master semester 1 MA1 Systèmes de communication - master SC_EPFL Communication Systems - master program SC_EPFL
Systèmes de communication SC Communication Systems SC
C G I optionnel optional
2 Cours Courses Heure(s) hebdo x 14 semaines Hour(s) per week x 14 weeks H hebdo H hebdo Guerraoui Rachid 105326
Systèmes de communication SC Communication Systems SC
1 Exercices Exercises Heure(s) hebdo x 14 semaines Hour(s) per week x 14 weeks H hebdo H hebdo Guerraoui Rachid 105326
Systèmes de communication SC Communication Systems SC
2 Labo Lab Heure(s) hebdo x 14 semaines Hour(s) per week x 14 weeks H hebdo H hebdo Guerraoui Rachid 105326
Systèmes de communication SC Communication Systems SC
3520381054 Concurrent computing Concurrent computing 6
Ecrit Written Crédit Credits 6 Session hiver Session winter HIV HIV
Systèmes de communication - master, 2025-2026, Master semestre 3 Communication Systems - master program, 2025-2026, Master semester 3 Ecole polytechnique fédérale de Lausanne EPFL Ecole polytechnique fédérale de Lausanne EPFL 2025-2026 Master semestre 3 MA3 HIVER Master semester 3 MA3 Systèmes de communication - master SC_EPFL Communication Systems - master program SC_EPFL
Systèmes de communication SC Communication Systems SC
C G I optionnel optional
2 Cours Courses Heure(s) hebdo x 14 semaines Hour(s) per week x 14 weeks H hebdo H hebdo Guerraoui Rachid 105326
Systèmes de communication SC Communication Systems SC
1 Exercices Exercises Heure(s) hebdo x 14 semaines Hour(s) per week x 14 weeks H hebdo H hebdo Guerraoui Rachid 105326
Systèmes de communication SC Communication Systems SC
2 Labo Lab Heure(s) hebdo x 14 semaines Hour(s) per week x 14 weeks H hebdo H hebdo Guerraoui Rachid 105326
Systèmes de communication SC Communication Systems SC
3520381054 Concurrent computing Concurrent computing 6
Ecrit Written Crédit Credits 6 Session hiver Session winter HIV HIV
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HTML_fin JS_debut \x26#961; JS_fin CODE140504636 BOOLEAN_Symbol 1 BaliseJS_debut \x5bRHO\x5d BaliseJS_fin Balise_debut [RHO] Balise_fin FO_debut [inline]=&#929; FO_fin HTML_debut &#929; HTML_fin JS_debut \x26#929; JS_fin CODE148292791 BOOLEAN_Symbol BaliseJS_debut \x5bepsilon\x5d BaliseJS_fin Balise_debut [epsilon] Balise_fin FO_debut [inline]=&#949; FO_fin HTML_debut &#949; HTML_fin JS_debut \x26#949; JS_fin CODE169976220 BOOLEAN_Symbol BaliseJS_debut \x5blig\x5d BaliseJS_fin Balise_debut [lig] Balise_fin FO_debut [inline]=&#x203A;&#160;&#160; FO_fin HTML_debut &#x203A;&#160;&#160; HTML_fin JS_debut \x26#x203A;\x26#160;\x26#160; JS_fin CODE148292899 BOOLEAN_Symbol BaliseJS_debut \x5bEPSILON\x5d BaliseJS_fin Balise_debut [EPSILON] Balise_fin FO_debut [inline]=&#917; FO_fin HTML_debut &#917; HTML_fin JS_debut \x26#917; JS_fin BALISETXT_SAUT BOOLEAN_Symbol BaliseJS_debut \x5bbr\x2f\x5d BaliseJS_fin Balise_debut [br/] Balise_fin FO_debut FO_fin HTML_debut <br/> HTML_fin JS_debut \x3cbr\x2f\x3e JS_fin 3520381054 Concurrent computing Concurrent computing anglais Guerraoui Rachid 105326 950840