Title :
Parallel commutation of sparse linear systems on many core processor
Author :
Rahaman, Abu Sayed Md Mostazur ; Akhter, Jesmin ; Rahman, Mohammad Touhidur
Author_Institution :
Dept. of Comput. Sci. & Eng., Jahangirnagar Univ., Dhaka, Bangladesh
Abstract :
In this paper, the authors describe the parallel implementation of a conjugate gradient method in a many-core system specially for solving the sparse linear systems. The new version of algorithm implementation differs from the one applied earlier [1], because it uses a special method for storing sparse coefficient matrices: only non-zero elements are stored and taken into account during computations, so that the sparsity of the coefficient matrix is taken full advantage of. Finally, A speedup of the parallel algorithm has been examined for different coefficient sparse matrices resulting in solving different physical problems.
Keywords :
conjugate gradient methods; linear systems; multiprocessing systems; parallel algorithms; sparse matrices; algorithm implementation; coefficient matrix sparsity; conjugate gradient method; many core processor; parallel algorithm; parallel commutation; sparse coefficient matrices; sparse linear systems; Equations; Graphics processing unit; Linear systems; Mathematical model; Sparse matrices; Symmetric matrices; Vectors; Conjugate gradient; PCGA; linear system; manycore; sparse matrix;
Conference_Titel :
Computer and Information Technology (ICCIT), 2011 14th International Conference on
Conference_Location :
Dhaka
Print_ISBN :
978-1-61284-907-2
DOI :
10.1109/ICCITechn.2011.6164861