COSMA: Distributed Communication-Optimal Matrix-Matrix Multiplication Library

Contents

1. Overview of package
   1. General usage
2. Availability of package by cluster

Overview of package

General information about package

Package:	COSMA
Description:	Distributed Communication-Optimal Matrix-Matrix Multiplication Library
For more information:	https://github.com/eth-cscs/COSMA
Categories:	SoftwareDevelopment NumericalMethods
License:	OpenSource (BSD 3-clause)

General usage information

COSMA is a parallel, high-performance, GPU-accelerated, matrix-matrix multiplication algorithm that is communication-optimal for all combinations of matrix dimensions, number of processors and memory sizes, without the need for any parameter tuning.

The following environmental variables have been defined:

• \$COSMA_ROOT has been set to the root of the cosma installation
• \$COSMA_LIBDIR points to the directory containing the libraries
• \$COSMA_INCDIR points to the directory containing the header files

You will probably wish to use these by adding the following flags to your compilation command (e.g. to CFLAGS in your Makefile):

• -I\$COSMA_INCDIR

and the following flags to your link command (e.g. LDFLAGS in your Makefile):

• -L\$COSMA_LIBDIR -Wl,-rpath,\$COSMA_LIBDIR

Available versions of the package COSMA, by cluster

This section lists the available versions of the package COSMAon the different clusters.

Available versions of COSMA on the Zaratab cluster

Available versions of COSMA on the Zaratab cluster

Version	Module tags	CPU(s) optimized for	GPU ready?
2.6.6	cosma/2.6.6	icelake, x86_64, zen2	Y
2.5.1	cosma/2.5.1	zen2	Y

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