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Yamazaki, Ichitaro Y. ; Hoemmen, Mark F. ; Boman, Erik G. ; Dongarra, Jack D.
Boman, Erik G.
Boman, Erik G. ; Chow, Edmond C.; Dongarra, Jack D.; Glusa, Christian A. ; Rajamanickam, Sivasankaran R. ; Szyld, Daniel B.; Yamazaki, Ichitaro Y.
Boman, Erik G. ; Rajamanickam, Sivasankaran R. ; Acer, Seher A.
Boman, Erik G.
Devine, Karen D. ; Boman, Erik G. ; Dunlavy, Daniel D. ; Kolda, Tamara G. ; Wolf, Michael W.
Cambier, Leopold C.; Chen, Chao C.; Darve, Eric D.; Boman, Erik G. ; Rajamanickam, Sivasankaran R. ; Tuminaro, Raymond S.
Thornquist, Heidi K. ; Loe, Jennifer A.; Thornquist, Heidi K. ; Boman, Erik G.
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.
Deveci, Mehmet D. ; Wolf, Michael W. ; Berry, Jonathan W. ; Rajamanickam, Sivasankaran R. ; Boman, Erik G. ; Trott, Christian R. ; Hammond, Simon D. ; Olivier, Stephen L.
Boman, Erik G. ; Deveci, Mehmet D.; Devine, Karen D. ; Rajamanickam, Sivasankaran R. ; Wolf, Michael W.
Boman, Erik G. ; Chen, Chao C.; Darve, Eric D.; Rajamanickam, Sivasankaran R. ; Tuminaro, Raymond S.
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.
Boman, Erik G. ; Hoemmen, Mark F. ; Anzt, Hartwig A.; Dongarra, Jack D.; Yamazaki, Ichitaro Y.
Boman, Erik G. ; Chen, Chao C. ; Darve, Eric D.; Rajamanickam, Sivasankaran R. ; Tuminaro, Raymond S.
Boman, Erik G. ; Chen, Chao C.; Darve, Eric D.; Rajamanickam, Sivasankaran R. ; Tuminaro, Raymond S.
Boman, Erik G. ; Rajamanickam, Sivasankaran R. ; Glusa, Christian A. ; Chow, Edmond C.; Ramanan, Paritosh R.
Lehoucq, Richard B. ; Boman, Erik G. ; Devine, Karen D. ; Berry, Jonathan W. ; Dunlavy, Daniel D. ; Wolf, Michael W. ; Henson, Van H.; Sanders, Geoff S.
Boman, Erik G. ; Chen, Chao C.; Darve, Eric D.; Pouransari, Hadi P.; Rajamanickam, Sivasankaran R.
Rajamanickam, Sivasankaran R. ; Bradley, Andrew M. ; Kim, Kyungjoo K. ; Boman, Erik G. ; Deveci, Mehmet D.
Boman, Erik G. ; Chen, Chao C.; Darve, Eric D.; Rajamanickam, Sivasankaran R. ; Tuminaro, Raymond S.
Deveci, Mehmet D. ; Rajamanickam, Sivasankaran R. ; Boman, Erik G.
Boman, Erik G. ; Patel, Aftab P.; Chow, Edmond C.; Rajamanickam, Sivasankaran R.
Devine, Karen D. ; Boman, Erik G. ; Rajamanickam, Sivasankaran R.
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