BLASPP BLAS C++ API
BLASPP Documentation

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C++ API for the Basic Linear Algebra Subroutines

Innovative Computing Laboratory

University of Tennessee

The Basic Linear Algebra Subprograms (BLAS) have been around for many decades and serve as the de facto standard for performance-portable and numerically robust implementation of essential linear algebra functionality. Originally, they were written in Fortran, and later furnished with a C API (CBLAS).

The objective of BLAS++ is to provide a convenient, performance oriented API for development in the C++ language, that, for the most part, preserves established conventions, while, at the same time, takes advantages of modern C++ features, such as: namespaces, templates, exceptions, etc.

BLAS++ is part of the project Software for Linear Algebra Targeting Exascale (SLATE), which is funded by the Department of Energy as part of its Exascale Computing Initiative (ECP).

Closely related to BLAS++ are the BBLAS++ and LAPACK++ projects, which aim at providing C++ APIs for the batch BLAS and LAPACK, respectively.

# Resources

• Visit the ECP website to find out more about the DOE Exascale Computing Initiative.
• Visit the SLATE Working Notes to find out more about ongoing SLATE developments.

# Getting Help

Need assistance with the SLATE software? Join the SLATE User Google group by going to https://groups.google.com/a/icl.utk.edu/forum/#!forum/slate-user and clicking Apply to join group. Upon acceptance, email your questions and comments to *slate-user.utk.edu*.

# Acknowledgments

This research was supported by the Exascale Computing Project (17-SC-20-SC), a collaborative effort of two U.S. Department of Energy organizations (Office of Science and the National Nuclear Security Administration) responsible for the planning and preparation of a capable exascale ecosystem, including software, applications, hardware, advanced system engineering and early testbed platforms, in support of the nation's exascale computing imperative.

This research uses resources of the Oak Ridge Leadership Computing Facility, which is a DOE Office of Science User Facility supported under Contract DE-AC05-00OR22725.

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