Performance Comparison between Blocking and Non-Blocking Communications for a Three-Dimensional Poisson Problem
| dc.contributor.author | Wang, Guan | |
| dc.contributor.author | Gobbert, Matthias K. | |
| dc.date.accessioned | 2018-10-25T14:52:18Z | |
| dc.date.available | 2018-10-25T14:52:18Z | |
| dc.date.issued | 2009 | |
| dc.description.abstract | The system of linear equations obtained by finite difference discretization of the three-dimensional Poisson problem is solved by a matrix-free parallel implementation of the Jacobi method. After checking the convergence of our implementation, we compare the speed of using blocking MPI_Ssend/MPI_Recv and non-blocking MPI_Isend/MPI_Irecv communications. The comparisons indicate that the non-blocking communications are slightly faster than the blocking ones but show the same speedup and efficiency behavior. The OpenMPI implementation of MPI is used in conjunction with the Portland Group C compiler. | en_US |
| dc.description.sponsorship | The hardware used in the computational studies is part of the UMBC High Performance Computing Facility (HPCF). The facility is supported by the U.S. National Science Foundation through the MRI program (grant no. CNS-0821258) and the SCREMS program (grant no. DMS-0821311), with additional substantial support from the University of Maryland, Baltimore County (UMBC). See www.umbc.edu/hpcf for more information on HPCF and the projects using its resources. | en_US |
| dc.description.uri | https://userpages.umbc.edu/~gobbert/papers/WangGobbertTR2009.pdf | en_US |
| dc.format.extent | 7 pages | en_US |
| dc.genre | technical report | en_US |
| dc.identifier | doi:10.13016/M27S7HW84 | |
| dc.identifier.uri | http://hdl.handle.net/11603/11688 | |
| dc.language.iso | en_US | en_US |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Mathematics Department Collection | |
| dc.relation.ispartof | UMBC Faculty Collection | |
| dc.relation.ispartofseries | HPCF Technical Report, HPCF-2009-5 | |
| dc.rights | This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author. | |
| dc.subject | Performance | en_US |
| dc.subject | Blocking | en_US |
| dc.subject | Non-Blocking | en_US |
| dc.subject | Three-Dimensional Poisson Problem | en_US |
| dc.subject | UMBC High Performance Computing Facility (HPCF) | en_US |
| dc.title | Performance Comparison between Blocking and Non-Blocking Communications for a Three-Dimensional Poisson Problem | en_US |
| dc.type | Text | en_US |