73 citations · 250 across the 39 of their papers we have counts for
5 papers · 1 filter
A Robust Hierarchical Solver for Ill-conditioned Systems with Applications to Ice Sheet Modeling
Chao Chen, Leopold Cambier, Erik G. Boman +3
A hierarchical solver is proposed for solving sparse ill-conditioned linear systems in parallel. The solver is based on a modification of the LoRaSp method, but employs a deferred-…
Asynchronous One-Level and Two-Level Domain Decomposition Solvers
Christian Glusa, Paritosh Ramanan, Erik G. Boman +2
Parallel implementations of linear iterative solvers generally alternate between phases of data exchange and phases of local computation. Increasingly large problem sizes on more h…
Geometric Partitioning and Ordering Strategies for Task Mapping on Parallel Computers
Mehmet Deveci, Karen D. Devine, Kevin Pedretti +3
We present a new method for mapping applications' MPI tasks to cores of a parallel computer such that applications' communication time is reduced. We address the case of sparse nod…
Sparse Matrix-Matrix Multiplication on Multilevel Memory Architectures : Algorithms and Experiments
Mehmet Deveci, Simon D. Hammond, Michael M. Wolf +1
Architectures with multiple classes of memory media are becoming a common part of mainstream supercomputer deployments. So called multi-level memories offer differing characteristi…
Multi-threaded Sparse Matrix-Matrix Multiplication for Many-Core and GPU Architectures
Mehmet Deveci, Christian Trott, Sivasankaran Rajamanickam
Sparse Matrix-Matrix multiplication is a key kernel that has applications in several domains such as scientific computing and graph analysis. Several algorithms have been studied i…