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- Kadir Akbudak, Enver Kayaaslan, Cevdet Aykanat
- SIAM J. Scientific Computing
- 2013

Sparse matrix-vector multiplication (SpMxV) is a kernel operation widely used in iterative linear solvers. The same sparse matrix is multiplied by a dense vector repeatedly in these solvers. Matrices with irregular sparsity patterns make it difficult to utilize cache locality effectively in SpMxV computations. In this work, we investigate single-and… (More)

- Kadir Akbudak, Cevdet Aykanat
- SIAM J. Scientific Computing
- 2014

For outer-product–parallel sparse matrix-matrix multiplication (SpGEMM) of the form C=A×B, we propose three hypergraph models that achieve simultaneous partitioning of input and output matrices without any replication of input data. All three hypergraph models perform conformable one-dimensional (1D) columnwise and 1D rowwise partitioning of the input… (More)

- M. Ozan Karsavuran, Kadir Akbudak, Cevdet Aykanat
- IEEE Transactions on Parallel and Distributed…
- 2016

Sparse matrix-vector and matrix-transpose-vector multiplication (SpMM<sup>T</sup>V) repeatedly performed as z←A<sup>T</sup><sub>x</sub> and y← A z (or y A w) for the same sparse matrix A is a kernel operation widely used in various iterative solvers. One important optimization for serial SpMM<sup>T</sup>V is reusing A-matrix nonzeros, which… (More)

- Kadir Akbudak, Cevdet Aykanat
- IEEE Transactions on Parallel and Distributed…
- 2017

Exploiting spatial and temporal localities is investigated for efficient row-by-row parallelization of general sparse matrix-matrix multiplication (SpGEMM) operation of the form <inline-formula><tex-math notation="LaTeX">$C=A\,B$ </tex-math><alternatives><inline-graphic xlink:href="aykanat-ieq1-2656893.gif"/></alternatives></inline-formula> on many-core… (More)

- Kadir Akbudak, Enver Kayaaslan, Cevdet Aykanat
- ArXiv
- 2012

The sparse matrix-vector multiplication (SpMxV) is a kernel operation widely used in iterative linear solvers. The same sparse matrix is multiplied by a dense vector repeatedly in these solvers. Matrices with irregular sparsity patterns make it difficult to utilize cache locality effectively in SpMxV computations. In this work, we investigate single-and… (More)

We acknowledge PRACE for the Preparatory Access Call Type B (resource) awards for our applications numbered 2010PA0930 and 2010PA2149. The library presented in this work has been developed and tested using these awarded resources, JUQUEEN at Jülich Supercomputing Centre and SuperMUC at Leibniz Supercomputing Center, all of which are based in Germany.

The sparse matrix-vector multiplication (SpMxV) is a kernel operation widely used in iterative linear solvers. The same sparse matrix is multiplied by a dense vector repeatedly in these solvers. Matrices with irregular sparsity patterns make it difficult to utilize cache locality effectively in SpMxV computations. In this work, we investigate single-and… (More)

- Kadir Akbudak, Enver Kayaaslan, Cevdet Aykanat
- ArXiv
- 2012

- R. Oguz Selvitopi, Kadir Akbudak, Cevdet Aykanat
- Resource Management for Big Data Platforms
- 2016