MAGMA templates for scalable linear algebra on emerging architectures. (November 2020)

• Record Type: Journal Article
• Authors: Al Farhan, Mohammed; Abdelfattah, Ahmad; Tomov, Stanimire; Gates, Mark; Sukkari, Dalal; Haidar, Azzam; Rosenberg, Robert; Dongarra, Jack
• Is Part Of: International journal of high performance computing applications. Volume 34:Number 6(2020)
• Page Start: 645
• Page End: 658
• Publication Date: 2020-11
• Subjects: Accelerator-driven computing -- HPC -- linear algebra -- performance portability -- polymorphism -- programming models; High performance computing -- Periodicals; Supercomputers -- Periodicals; 004.1105
• DOI: 10.1177/1094342020938421
• Languages: English
• ISSNs: 1094-3420

Abstract

With the acquisition and widespread use of more resources that rely on accelerator/wide vector–based computing, there has been a strong demand for science and engineering applications to take advantage of these latest assets. This, however, has been extremely challenging due to the diversity of systems to support their extreme concurrency, complex memory hierarchies, costly data movement, and heterogeneous node architectures. To address these challenges, we design a programming model and describe its ease of use in the development of a new MAGMA Templates library that delivers high-performance scalable linear algebra portable on current and emerging architectures. MAGMA Templates derives its performance and portability by (1) building on existing state-of-the-art linear algebra libraries, like MAGMA, SLATE, Trilinos, and vendor-optimized math libraries, and (2) providing access (seamlessly to the users) to the latest algorithms and architecture-specific optimizations through a single, easy-to-use C++-based API.