extended-abstract

Experiences Supporting DPC++ in AMReX

Authors:

Christopher LishkaAuthors Info & Claims

IWOCL '21: Proceedings of the 9th International Workshop on OpenCL

Article No.: 9, Page 1

https://doi.org/10.1145/3456669.3456673

Published: 27 April 2021 Publication History

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Abstract

AMReX is a software framework for massively parallel, block-structured adaptive mesh refinement (AMR) applications. AMReX is developed as part of the United States Department Of Energy’s Exascale Computing Project (ECP). Besides AMR capabilities, AMReX also provides a parallel programming framework for numerous applications including six ECP projects, and it implements several backends for CPU-GPU heterogeneous computing.

In this talk, we present our experiences supporting DPC++, a language based on the SYCL specification as a backend for AMReX. We will demonstrate how AMReX provides an abstraction layer for its users so that they can write performance portable code for a variety of heterogeneous platforms. We will discuss key DPC++ features that allow AMReX to implement the abstractions and our contributions to the oneAPI specification and Intel’s implementation. We will also highlight some features missing in SYCL/DPC++ that limits its efficiency and our future plans.

Index Terms

Experiences Supporting DPC++ in AMReX
1. Computing methodologies
  1. Parallel computing methodologies
    1. Parallel programming languages
2. Software and its engineering
  1. Software notations and tools
    1. General programming languages
      1. Language types
        Concurrent programming languages
        Distributed programming languages
        Parallel programming languages

Index terms have been assigned to the content through auto-classification.

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IWOCL '21: Proceedings of the 9th International Workshop on OpenCL

April 2021

112 pages

ISBN:9781450390330

DOI:10.1145/3456669

Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Association for Computing Machinery

New York, NY, United States

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Published: 27 April 2021

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IWOCL'21

IWOCL'21: International Workshop on OpenCL

April 27 - 29, 2021

Munich, Germany

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AMReX: Block-structured adaptive mesh refinement for multiphysics applications

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AMReX and pyAMReX: Looking beyond the exascale computing project

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