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Computer Science > Distributed, Parallel, and Cluster Computing

arXiv:2405.00436 (cs)
[Submitted on 1 May 2024]

Title:Porting HPC Applications to AMD Instinct$^\text{TM}$ MI300A
Using Unified Memory and OpenMP

Authors:Suyash Tandon, Leopold Grinberg, Gheorghe-Teodor Bercea,
Carlo Bertolli, Mark Olesen, Simone Bna, Nicholas Malaya
View a PDF of the paper titled Porting HPC Applications to AMD
Instinct$^\text{TM}$ MI300A Using Unified Memory and OpenMP, by
Suyash Tandon and 5 other authors
View PDF

    Abstract:AMD Instinct$^\text{TM}$ MI300A is the world's first
    data center accelerated processing unit (APU) with memory shared
    between the AMD "Zen 4" EPYC$^\text{TM}$ cores and third
    generation CDNA$^\text{TM}$ compute units. A single memory space
    offers several advantages: i) it eliminates the need for data
    replication and costly data transfers, ii) it substantially
    simplifies application development and allows an incremental
    acceleration of applications, iii) is easy to maintain, and iv)
    its potential can be well realized via the abstractions in the
    OpenMP 5.2 standard, where the host and the device data
    environments can be unified in a more performant way. In this
    article, we provide a blueprint of the APU programming model
    leveraging unified memory and highlight key distinctions compared
    to the conventional approach with discrete GPUs. OpenFOAM, an
    open-source C++ library for computational fluid dynamics, is
    presented as a case study to emphasize the flexibility and ease
    of offloading a full-scale production-ready application on MI300
    APUs using directive-based OpenMP programming.

Comments: Accepted paper at ISC High Performance 2024
Subjects: Distributed, Parallel, and Cluster Computing (cs.DC)
Cite as:  arXiv:2405.00436 [cs.DC]
          (or arXiv:2405.00436v1 [cs.DC] for this version)
          https://doi.org/10.48550/arXiv.2405.00436
          Focus to learn more
          arXiv-issued DOI via DataCite

Submission history

From: Suyash Tandon [view email]
[v1] Wed, 1 May 2024 10:38:06 UTC (955 KB)
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    View a PDF of the paper titled Porting HPC Applications to AMD
    Instinct$^\text{TM}$ MI300A Using Unified Memory and OpenMP, by
    Suyash Tandon and 5 other authors
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