Lecture (Other) FZJ-2022-05791

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Directive-based GPU programming with OpenACC

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2022

Lecture at PRACE Training Course at JSC (online, Germany), 26 Oct 2022 - 28 Oct 20222022-10-262022-10-28

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Abstract: GPU-accelerated computing drives current scientific research. Writing fast numeric algorithms for GPUs offers high application performance by offloading compute-intensive portions of the code to the GPU. The course covered basic aspects of GPU architectures and programming. Focus was on the usage of the directive-based OpenACC programming model, which allows for portable application development. Examples of increasing complexity were used to demonstrate optimization and tuning of scientific applications. Topics covered: Introduction to GPU/Parallel computing, Programming model OpenACC, Interoperability of OpenACC with GPU libraries (like cuBLAS and cuFFT) and CUDA, Multi-GPU Programming with MPI and OpenACC, Tools for debugging and profiling, Performance optimization. The course consists of lectures and interactive hands-on sessions in C or Fortran (the attendee’s choice).


Contributing Institute(s):
  1. Jülich Supercomputing Center (JSC)
Research Program(s):
  1. 5122 - Future Computing & Big Data Systems (POF4-512) (POF4-512)
  2. 5111 - Domain-Specific Simulation & Data Life Cycle Labs (SDLs) and Research Groups (POF4-511) (POF4-511)
  3. ATML-X-DEV - ATML Accelerating Devices (ATML-X-DEV) (ATML-X-DEV)

Appears in the scientific report 2022
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 Record created 2022-12-13, last modified 2025-08-22


OpenAccess:
1-aherten-gpu-intro - Download fulltext PDF
3-hater-debugging - Download fulltext PDF
0-aherten-overview - Download fulltext PDF
6-kraus-Multi-GPU-Programming-with-MPI_and_OpenACC - Download fulltext PDF
2-aherten-openacc-intro - Download fulltext PDF
4-hrywniak-OpenACC_Performance_Optimization - Download fulltext PDF
5-haghighi-interoperability - Download fulltext PDF
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