Thematic CERN School of Computing 2022

Name: Thematic CERN School of Computing 2022
Start: 2022-05-01T16:00:00+02:00
End: 2022-05-07T09:00:00+02:00
Location: Cargèse, Corsica, France

May 1, 2022, 4:00 PM → May 7, 2022, 9:00 AM Europe/Paris

Cargèse, Corsica, France

Sebastian Lopienski (CERN), Joelma Tolomeo (CERN), Jarek Polok (CERN)

Description

The 10th Thematic CERN School of Computing (tCSC 2022) will take place on May 1-7, 2022. The theme of the school is "Scientific Software for Heterogeneous Architectures" - see the academic programme for more details.

This School is organized by CERN. Assuming a positive evolution of the pandemic, the school will take place in Cargèse, France, and be hosted at the Institut d’Études Scientifiques de Cargèse (IESC). The Institute is located on the west coast of the French island of Corsica, 50 km north of Ajaccio city and its international airport. (However, if the pandemic situation doesn't allow traveling or physical presence, the school will be moved to online format.)

The School is aimed at postgraduate (i.e. minimum of Bachelor degree or equivalent) students, engineers and scientists with a few years' experience in particle physics, in computing, or in related fields. We welcome applications from all countries and nationalities.

Applications are now closed

Important Dates

Thursday December 9, 2021 - applications open
Sunday January 23 - application deadline
Thursday February 10 - invitations sent to the selected participants
Sunday March 20 - registration fee payment deadline
Sunday May 1 to Saturday May 7 - the school

CERN School of Computing

Computing.School@cern.ch

Sunday, May 1
- 4:00 PM
  
  Registration
- 7:30 PM
  
  Dinner (self-organized)
Monday, May 2
- 8:00 AM
  
  Breakfast
- 1
  
  Opening Session
  
  Speakers: Enrica Maria Porcari (CERN), Sebastian Lopienski (CERN)
  
  2022.05 Welcome to the CSC.pdf
  
  2022.05 Welcome to the CSC.pptx
- 2
  
  Self-presentation: 1 minute per person
  
  CSC core team - one slide per person.pdf
  
  tCSC 2022 self-presentations.pdf
- 10:00 AM
  
  Coffee break
- 3
  
  Preparing for the HL-LHC computational challenge
  
  In this talk we will introduce some basic concepts related to HEP data processing and analysis workflows, seeing them in action in the context of LHC experiments. We’ll also talk about the evolution of the LHC accelerator and experiments. We’ll characterise at a high level what are the consequences of those upgrades for the HEP data processing software, in particular in the context of an evolving hardware and computing infrastructure.
  
  Speaker: Danilo Piparo (CERN)
  
  tCSC2022_Intro.pdf
- 4
  Introduction to efficient computing
  Technologies and Platforms - lecture 1
  - The evolution of computing hardware and what it means in practice
  - The seven dimensions of performance
  - Controlling and benchmarking your computer and software
  - Software that scales with the hardware
  - Advanced performance tuning in hardware
  Speaker: Andrzej Nowak
  
  A.Nowak-01 Introduction to Efficient Computing-tCSC2022.pdf
- 12:20 PM
  
  Lunch
- 1:00 PM
  
  Study time and/or daily sports
- 5
  
  Self-presentation: 1 minute per person
- 6
  Hardware evolution and heterogeneity
  Technologies and Platforms - lecture 2
  - Accelerators, co-processors, heterogeneity
  - Memory architectures, hardware caching and NUMA
  - Compute devices: CPU, GPU, FPGA, ASIC etc.
  - The role of compilers
  Speaker: Andrzej Nowak
  
  A.Nowak-02 Hardware Evolution and Heterogeneity-tCSC2022.pdf
- 3:20 PM
  
  Coffee break
- 7
  
  Technologies and Platforms - exercise
  
  Speaker: Andrzej Nowak
- 8
  Data-oriented design
  Technologies and Platforms - lecture 3
  - Hardware vectorization in detail – theory vs. practice
  - Software design for vectorization and smooth data flow
  - How can compilers and other tools help?
  Speaker: Andrzej Nowak
  
  A.Nowak-03 Data Oriented Design-tCSC2022.pdf
- 7:30 PM
  
  Opening dinner
Tuesday, May 3
- 8:00 AM
  
  Breakfast
- 9
  Writing parallel software
  Parallel and Optimised Scientific Software - lecture 1
  - Amdahl's and Gustafson's laws
  - Asynchronous execution
  - Finding concurrency, task vs. data parallelism
  - Using threading in C++ and Python, comparison with multi-process
  - Resource protection and thread safety
  - Locks, thread local storage, atomic operations
  Speaker: Sebastien Ponce (CERN)
  
  Course and exercise sources
  
  WritingParallelSoft-pres.pdf
- 10
  
  Announcements
  
  tCSC 2022 - announcements May 3 Tuesday.pdf
- 10:00 AM
  
  Coffee break
- 11
  Modern programming languages for HEP
  Parallel and Optimised Scientific Software - lecture 2
  - Why Python and C++ ?
  - Recent evolutions: C++ 11/14/17
  - Modern features of C++ related to performance
  - Templating versus inheritance, pros and cons of virtual inheritance
  - Python 3, and switching from Python 2
  Speaker: Sebastien Ponce (CERN)
  
  Course and exercise sources
  
  ModernProgramming-pres.pdf
- 12
  
  Technologies and Platforms - exercise
- 12:20 PM
  
  Lunch
- 1:00 PM
  
  Study time and/or daily sports
- 13
  
  Technologies and Platforms - exercise debriefing
  
  Speaker: Andrzej Nowak
- 14
  Optimizing existing large codebase
  Parallel and Optimised Scientific Software - lecture 3
  - Measuring performance, tools and key indicators
  - Improving memory handling
  - The nightmare of thread safety
  - Code modernization and low level optimizations
  - Data structures for efficient computation in modern C++
  Speaker: Sebastien Ponce (CERN)
  
  Course and exercise sources
  
  LargeCodeOptimization-pres.pdf
- 3:20 PM
  
  Coffee break
- 15
  
  Optimizing existing large codebase - exercise
  
  Optimisation of an existing, production grade large codebase
  
  Speaker: Sebastien Ponce (CERN)
  
  exercise4.pdf
- 7:30 PM
  
  Dinner (self-organized)
Wednesday, May 4
- 8:00 AM
  
  Breakfast
- 16
  Scientific computing on heterogeneous architectures
  Programming for Heterogeneous Architectures - lecture 1
  - Introduction to heterogeneous architectures and the performance challenge
  - From general to specialized: Hardware accelerators and applications
  - Type of workloads ideal for different accelerators
  - Trade-offs between multi-core and many-core architectures
  - Implications of heterogeneous hardware on the design and architecture of scientific software
  - Embarrassingly parallel scientific applications in HPC and CERN
  Speaker: Dorothea Vom Bruch (CPPM/CNRS)
  
  vom_Bruch_scientific_computing_heterogeneous_architectures_2022-05.pdf
- 17
  
  Announcements
  
  tCSC 2022 - announcements May 4 Wednesday.pptx
- 10:00 AM
  
  Coffee break
- 18
  
  Student lightning talks
  
  1-Russo-tCSC_StudentLightning_Russo.pdf
  
  2-Koraka-GPUs-at-CMS_tCSC_2022.pdf
  
  3-Sugunan_CheckboardMetropolis.pdf
  
  4-madlener_podio_edm4hep_tcsc2022.pdf
  
  5-Moravcova_LittleBigBang.pdf
  
  Student lightning talks.pdf
- 19
  Practical vectorization
  Parallel and Optimised Scientific Software - lecture 4
  - Measuring vectorization level
  - What to expect from vectorization
  - Preparing code for vectorization
  - Vectorizing techniques in C++: intrinsics, libraries, autovectorization
  Speaker: Sebastien Ponce (CERN)
  
  Course and exercise sources
  
  PracticalVectorization-pres.pdf
- 12:20 PM
  
  Lunch
- 20
  
  School photo
- 3:00 PM
  
  Outdoor excursion
- 7:30 PM
  
  Excursion dinner
Thursday, May 5
- 8:00 AM
  
  Breakfast
- 21
  Programming for GPUs
  Programming for Heterogeneous Architectures - lecture 2
  - From SIMD to SPMD, a programming model transition
  - Thread and memory organization
  - Basic building blocks of a GPU program
  - Control flow, synchronization, atomics
  Speaker: Dorothea Vom Bruch (CPPM/CNRS)
  
  vom_Bruch_programming_for_GPUs_2022-05.pdf
- 22
  
  Announcements
- 10:00 AM
  
  Coffee break
- 23
  Performant programming for GPUs
  Programming for Heterogeneous Architectures - lecture 3
  - Data locality, coalesced memory accesses, tiled data processing
  - GPU streams, pipelined memory transfers
  - Under the hood: branchless, warps, masked execution
  - Debugging and profiling a GPU application
  Speaker: Daniel Campora (University of Maastricht)
  
  dcampora_performant_programming_for_gpus_presentation.pdf
- 24
  
  Practical vectorization - exercise
  
  Speaker: Sebastien Ponce (CERN)
  
  exercise5.pdf
- 12:20 PM
  
  Lunch
- 1:00 PM
  
  Study time and/or daily sports
- 25
  
  Optimisation + vectorization - exercise debriefing
  
  Speaker: Sebastien Ponce (CERN)
- 26
  Design patterns and best practices
  Programming for Heterogeneous Architectures - lecture 4
  - Good practices: single precision, floating point rounding, avoid register spilling, prefer single source
  - Other standards: SYCL, HIP, OpenCL
  - Middleware libraries and cross-architecture compatibility
  - Reusable parallel design patterns with real-life applications
  Speaker: Daniel Campora (University of Maastricht)
  
  dcampora_design_patterns_and_best_practices.pdf
- 3:40 PM
  
  Coffee break
- 27
  
  Programming for heterogeneous architectures - exercise
  
  Speakers: Daniel Campora (University of Maastricht), Dorothea Vom Bruch (CPPM/CNRS)
  
  instructions_to_start_gpu_lab.pdf
  
  Where-to-find-GPUs-at-CERN.pdf
- 7:00 PM
  
  Barbecue dinner
  
  IESC
Friday, May 6
- 8:00 AM
  
  Breakfast
- 28
  
  Programming for heterogeneous architectures - exercise
- 10:00 AM
  
  Coffee break
- 29
  
  Programming for heterogeneous architectures - exercise
- 30
  
  Announcements
  
  tCSC 2022 - announcements May 6 Friday.pdf
  
  tCSC 2022 - announcements May 6 Friday.pptx
- 31
  
  Programming for heterogeneous architectures - exercise debriefing
  
  Speakers: Daniel Hugo Campora Perez (University of Maastricht), Dorothea Vom Bruch (CPPM/CNRS)
- 12:20 PM
  
  Lunch
- 1:00 PM
  
  Study time and/or daily sports
- 32
  Summary and future technologies overview
  Technologies and Platforms - lecture 4
  - Teaching program summary and wrap-up
  - Next-generation memory technologies and interconnect
  - Future computing evolution
  Speaker: Andrzej Nowak
  
  A.Nowak-04 Future Directions and Wrap-up-tCSC2022.pdf
- 3:20 PM
  
  Coffee break
- 33
  
  Exam
  
  Exam logistics.pdf
  
  Exam results
- 4:30 PM
  
  Free time
- 34
  
  Closing Session
  
  Speaker: Sebastian Lopienski (CERN)
- 7:30 PM
  
  Closing dinner
  
  Cargèse
Saturday, May 7
- 8:00 AM
  
  Breakfast
- 8:30 AM
  
  Departure - bus leaves at 8:30

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Thematic CERN School of Computing 2022

Cargèse, Corsica, France

Applications are now closed

Important Dates