Publications

Yamazaki, Ichitaro Y.; Hoemmen, Mark F.; Boman, Erik G.; Dongarra, Jack D.

Abstract not provided.

Boman, Erik G.

Abstract not provided.

Boman, Erik G.; Chow, Edmond C.; Dongarra, Jack D.; Glusa, Christian A.; Rajamanickam, Sivasankaran R.; Szyld, Daniel B.; Yamazaki, Ichitaro Y.

Abstract not provided.

Boman, Erik G.; Rajamanickam, Sivasankaran R.; Acer, Seher A.

Abstract not provided.

Boman, Erik G.

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Devine, Karen D.; Boman, Erik G.; Dunlavy, Daniel D.; Kolda, Tamara G.; Wolf, Michael W.

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Cambier, Leopold C.; Chen, Chao C.; Darve, Eric D.; Boman, Erik G.; Rajamanickam, Sivasankaran R.; Tuminaro, Raymond S.

Abstract not provided.

Thornquist, Heidi K.; Loe, Jennifer A.; Thornquist, Heidi K.; Boman, Erik G.

Abstract not provided.

Parallel Computing

Chen, Chao; Pouransari, Hadi; Rajamanickam, Sivasankaran R.; Boman, Erik G.; Darve, Eric

We present a parallel hierarchical solver for general sparse linear systems on distributed-memory machines. For large-scale problems, this fully algebraic algorithm is faster and more memory-efficient than sparse direct solvers because it exploits the low-rank structure of fill-in blocks. Depending on the accuracy of low-rank approximations, the hierarchical solver can be used either as a direct solver or as a preconditioner. The parallel algorithm is based on data decomposition and requires only local communication for updating boundary data on every processor. Moreover, the computation-to-communication ratio of the parallel algorithm is approximately the volume-to-surface-area ratio of the subdomain owned by every processor. We present various numerical results to demonstrate the versatility and scalability of the parallel algorithm.

Boman, Erik G.; Chen, Chao C.; Rajamanickam, Sivasankaran R.

Abstract not provided.

Deveci, Mehmet D.; Wolf, Michael W.; Berry, Jonathan W.; Rajamanickam, Sivasankaran R.; Boman, Erik G.; Trott, Christian R.; Hammond, Simon D.; Olivier, Stephen L.

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Boman, Erik G.; Deveci, Mehmet D.; Devine, Karen D.; Rajamanickam, Sivasankaran R.; Wolf, Michael W.

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Boman, Erik G.; Chen, Chao C.; Darve, Eric D.; Rajamanickam, Sivasankaran R.; Tuminaro, Raymond S.

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Author, No A.; Halappanavar, Mahantesh H.; Buluc, Aydin B.; Boman, Erik G.; pothen, alex p.; Tumeo, Antonino T.; Azad, Ariful A.; Khan, Arif K.; Ferdous, SM F.; Rajamanickam, Sivasankaran R.; Wolf, Michael W.; Deveci, Mehmet D.; Devine, Karen D.

Abstract not provided.

Boman, Erik G.; Hoemmen, Mark F.; Anzt, Hartwig A.; Dongarra, Jack D.; Yamazaki, Ichitaro Y.

Abstract not provided.

Boman, Erik G.; Chen, Chao C.; Darve, Eric D.; Rajamanickam, Sivasankaran R.; Tuminaro, Raymond S.

Abstract not provided.

Boman, Erik G.; Chen, Chao C.; Darve, Eric D.; Rajamanickam, Sivasankaran R.; Tuminaro, Raymond S.

Abstract not provided.

Boman, Erik G.; Rajamanickam, Sivasankaran R.; Glusa, Christian A.; Chow, Edmond C.; Ramanan, Paritosh R.

Abstract not provided.

Lehoucq, Richard B.; Boman, Erik G.; Devine, Karen D.; Berry, Jonathan W.; Dunlavy, Daniel D.; Wolf, Michael W.; Henson, Van H.; Sanders, Geoff S.

Abstract not provided.

Boman, Erik G.; Chen, Chao C.; Darve, Eric D.; Pouransari, Hadi P.; Rajamanickam, Sivasankaran R.

Abstract not provided.

Rajamanickam, Sivasankaran R.; Bradley, Andrew M.; Kim, Kyungjoo K.; Boman, Erik G.; Deveci, Mehmet D.

Abstract not provided.

Boman, Erik G.; Chen, Chao C.; Darve, Eric D.; Rajamanickam, Sivasankaran R.; Tuminaro, Raymond S.

Abstract not provided.

Deveci, Mehmet D.; Rajamanickam, Sivasankaran R.; Boman, Erik G.

Abstract not provided.

Boman, Erik G.; Patel, Aftab P.; Chow, Edmond C.; Rajamanickam, Sivasankaran R.

Abstract not provided.

Devine, Karen D.; Boman, Erik G.; Rajamanickam, Sivasankaran R.

Abstract not provided.