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- Johannes Langguth, Fredrik Manne, Peter Sanders
- ACM Journal of Experimental Algorithmics
- 2010

It is a well-established result that improved pivoting in linear solvers can be achieved by computing a bipartite matching between matrix entries and positions on the main diagonal. With theâ€¦ (More)

- Johannes Langguth, Ariful Azad, Mahantesh Halappanavar, Fredrik Manne
- Parallel Computing
- 2014

- Johannes Langguth, Nan Wu, Jun Chai, Xing Cai
- IA3@SC
- 2013

Finite volume methods are widely used numerical strategies for solving partial differential equations. This paper aims at obtaining a quantitative understanding of the achievable GPU performance ofâ€¦ (More)

- Johannes Langguth, Xing Cai
- 2014 20th IEEE International Conference onâ€¦
- 2014

A recent trend in modern high-performance computing environments is the introduction of accelerators such as GPU and Xeon Phi, i.e. specialized computing devices that are optimized for highlyâ€¦ (More)

We present a new graph clustering algorithm aimed at obtaining clusterings of high modularity. The algorithm pursues a divisive clustering approach and uses established graph partitioning algorithmsâ€¦ (More)

- Ariful Azad, Johannes Langguth, Youhan Fang, Alan Qi, Alex Pothen
- WABI
- 2010

Multi-channel, high throughput experimental methodologies for flow cytometry are transforming clinical immunology and hematology, and require the development of algorithms to analyze theâ€¦ (More)

- Kamer Kaya, Johannes Langguth, Fredrik Manne, Bora UÃ§ar
- Computers & OR
- 2013

We investigate the push-relabel algorithm for solving the problem of finding a maximum cardinality matching in a bipartite graph in the context of the maximum transversal problem. We describe inâ€¦ (More)

- Johannes Langguth, Md. Mostofa Ali Patwary, Fredrik Manne
- Parallel Computing
- 2011

- Ãœmit V. Ã‡atalyÃ¼rek, Kamer Kaya, Johannes Langguth, Bora UÃ§ar
- Graph Partitioning and Graph Clustering
- 2012

We present a new graph clustering algorithm aimed at obtaining clusterings of high modularity. The algorithm pursues a divisive clustering approach and uses established graph partitioning algorithmsâ€¦ (More)

- Johannes Langguth, Mohammed Sourouri, Glenn Terje Lines, Scott B. Baden, Xing Cai
- IEEE Micro
- 2015

A recent trend in modern high-performance computing environments is the introduction of powerful, energy-efficient hardware accelerators such as GPUs and Xeon Phi coprocessors. These specializedâ€¦ (More)