Academic Journal
Streamline Integration Using MPI-Hybrid Parallelism on a Large Multicore Architecture
| العنوان: | Streamline Integration Using MPI-Hybrid Parallelism on a Large Multicore Architecture |
|---|---|
| المؤلفون: | David Camp, Christoph Garth, Hank Childs, Dave Pugmire, Kenneth I. Joy |
| المساهمون: | The Pennsylvania State University CiteSeerX Archives |
| المصدر: | http://vis.lbl.gov/Publications/2010/LBNL-4563E.pdf. |
| المجموعة: | CiteSeerX |
| مصطلحات موضوعية: | Ç |
| الوصف: | —Streamline computation in a very large vector field data set represents a significant challenge due to the nonlocal and datadependent nature of streamline integration. In this paper, we conduct a study of the performance characteristics of hybrid parallel programming and execution as applied to streamline integration on a large, multicore platform. With multicore processors now prevalent in clusters and supercomputers, there is a need to understand the impact of these hybrid systems in order to make the best implementation choice. We use two MPI-based distribution approaches based on established parallelization paradigms, parallelize over seeds and parallelize over blocks, and present a novel MPI-hybrid algorithm for each approach to compute streamlines. Our findings indicate that the work sharing between cores in the proposed MPI-hybrid parallel implementation results in much improved performance and consumes less communication and I/O bandwidth than a traditional, nonhybrid distributed implementation. Index Terms—Concurrent programming, parallel programming, modes of computation, parallelism and concurrency, picture/image generation, display algorithms. |
| نوع الوثيقة: | text |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.299.2732; http://vis.lbl.gov/Publications/2010/LBNL-4563E.pdf |
| الاتاحة: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.299.2732 http://vis.lbl.gov/Publications/2010/LBNL-4563E.pdf |
| Rights: | Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
| رقم الانضمام: | edsbas.35931761 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |