Concurrent Number Cruncher : An Efficient Sparse Linear Solver on the GPU
in: High Performance Computation Conference - HPCC'07, University of Houston, pages 358-371, Springer Berlin / Heidelberg
Abstract
A wide class of geometry processing and PDE resolution methods needs to solve a linear system, where the non-zero pattern of the matrix is dictated by the connectivity matrix of the mesh. The advent of GPUs with their ever-growing amount of parallel horsepower makes them a tempting resource for such numerical computations. This can be helped by new APIs (CTM from ATI and CUDA from NVIDIA) which give a direct access to the multithreaded computational resources and associated memory bandwidth of GPUs; CUDA even provides a BLAS implementation but only for dense matrices (CuBLAS). However, existing GPU linear solvers are restricted to specific types of matrices, or use non-optimal compressed row storage strategies. By combining recent GPU programming techniques with supercomputing strategies (namely block compressed row storage and register blocking), we implement a sparse generalpurpose linear solver which outperforms leading-edge CPU counterparts (MKL / ACML).
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BibTeX Reference
@inproceedings{buatois:inria-00186833, abstract = {A wide class of geometry processing and PDE resolution methods needs to solve a linear system, where the non-zero pattern of the matrix is dictated by the connectivity matrix of the mesh. The advent of GPUs with their ever-growing amount of parallel horsepower makes them a tempting resource for such numerical computations. This can be helped by new APIs (CTM from ATI and CUDA from NVIDIA) which give a direct access to the multithreaded computational resources and associated memory bandwidth of GPUs; CUDA even provides a BLAS implementation but only for dense matrices (CuBLAS). However, existing GPU linear solvers are restricted to specific types of matrices, or use non-optimal compressed row storage strategies. By combining recent GPU programming techniques with supercomputing strategies (namely block compressed row storage and register blocking), we implement a sparse generalpurpose linear solver which outperforms leading-edge CPU counterparts (MKL / ACML).}, address = {Houston, United States}, author = {Buatois, Luc and Caumon, Guillaume and L{\'e}vy, Bruno}, booktitle = {{High Performance Computation Conference - HPCC'07}}, doi = {10.1007/978-3-540-75444-2\_37}, editor = {Ronald Perrott and Barbara M. Chapman and Jaspal Subhlok and Rodrigo Fernandes de Mello and Laurence T. Yang}, hal_id = {inria-00186833}, hal_version = {v1}, month = {September}, note = {The original publication is available at www.springerlink.com}, organization = {{University of Houston}}, pages = {358-371}, pdf = {https://inria.hal.science/inria-00186833v1/file/HPCC_number_cruncher.pdf}, publisher = {{Springer Berlin / Heidelberg}}, series = {Lecture Notes in Computer Science}, title = {{Concurrent Number Cruncher : An Efficient Sparse Linear Solver on the GPU}}, url = {https://inria.hal.science/inria-00186833}, volume = {4782}, year = {2007} }