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- Seher Acer, Enver Kayaaslan, Cevdet Aykanat
- SIAM J. Scientific Computing
- 2013

We investigate the problem of symmetrically permuting a square sparse matrix into a block diagonal form with overlap. This permutation problem arises in the parallelization of an explicit formulation of the multiplicative Schwarz preconditioner and a more recent block overlapping banded linear solver as well as its application to general sparse linear… (More)

- Oguz Selvitopi, Seher Acer, Cevdet Aykanat
- IEEE Transactions on Parallel and Distributed…
- 2017

Intelligent partitioning models are commonly used for efficient parallelization of irregular applications on distributed systems. These models usually aim to minimize a single communication cost metric, which is either related to communication volume or message count. However, both volume- and message-related metrics should be taken into account during… (More)

- Seher Acer, R. Oguz Selvitopi, Cevdet Aykanat
- Parallel Computing
- 2016

In this whitepaper, we describe the problem of permuting sparse square matrices into block diagonal form with overlap (BDO) and propose a graph partitioning algorithm for solving this problem. A block diagonal matrix with overlap is a block diagonal matrix whose consecutive diagonal blocks may overlap. The objective in this permutation problem is to… (More)

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