Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/26069

TitleA (ir)regularity-aware task scheduler for heterogeneous platforms
Author(s)Mariano, Artur Miguel Matos
Alves, Ricardo
Barbosa, João
Santos, Luís Paulo
Proença, Alberto José
KeywordsHeterogeneous systems
Irregular applications
Scheduling
CPU+GPU
Irregularity
Heterogeneous
Performance-portability
Issue dateOct-2012
Abstract(s)This paper addresses the design, implementation and validation of an e ective scheduling scheme for both regular and irregular applications on heterogeneous platforms. The scheduler uses an empirical performance model to dynamically schedule the workload, organized into a given number of chunks, and follows the Heterogeneous Earliest Finish Time (HEFT) scheduling algorithm, which ranks the tasks based on both their computation and communication costs. The evaluation of the proposed approach is based on three case studies { the SAXPY, the FFT and the Barnes-Hut algorithms { two regular and one irregular application. The scheduler was evaluated on a heterogeneous platform with one quad-core CPU-chip accelerated by one or two GPU devices, embedded in the GAMA framework. The evaluation runs measured the e ectiveness, the e ciency and the scalability of the proposed method. Results show that the proposed model was e active in addressing both regular and irregular applications, on heterogeneous platforms, while achieving ideal ( 100%) levels of e ciency in the irregular Barnes-Hut algorithm.
TypeConference paper
URIhttp://hdl.handle.net/1822/26069
Publisher versionhttp://hpc-ua.org/hpc-ua-12/files/proceedings/8.pdf
Peer-Reviewedyes
AccessOpen access
Appears in Collections:DI/CCTC - Artigos (papers)

Files in This Item:
File Description SizeFormat 
HPCUA-final.pdfDocumento Principal879,89 kBAdobe PDFView/Open

Partilhe no FacebookPartilhe no TwitterPartilhe no DeliciousPartilhe no LinkedInPartilhe no DiggAdicionar ao Google BookmarksPartilhe no MySpacePartilhe no Orkut
Exporte no formato BibTex mendeley Exporte no formato Endnote Adicione ao seu ORCID