Sparse matrices in Matlab*P: Design and implementation

Abstract. Matlab*P is a flexible interactive system that enables com-putational scientists and engineers to use a high-level language to pro-gram cluster computers. The Matlab*P user writes code in the Mat-lab language. Parallelism is available via data-parallel operations on distributed objects and via task-parallel operations on multiple objects. Matlab*P can store distributed matrices in either full or sparse for-mat. As in Matlab, most matrix operations apply equally to full or sparse operands. Here, we describe the design and implementation of Matlab*P’s sparse matrix support, and an application to a problem in computational fluid dynamics