DocumentCode :
2062044
Title :
Proposal to solve workload problems in the simulator of the Wolf architecture
Author :
Cavenaghi, Marcos A. ; Martini, Joao A. ; Neto, Alvaro Garcia
Author_Institution :
Dept. of Comput. Sci., State Univ. of Pao Paulo, Brazil
Volume :
1
fYear :
2000
fDate :
14-17 May 2000
Firstpage :
315
Abstract :
Presents an approach that has been proposed in order to investigate the workload balance problems in a simulator of the Wolf parallel architecture, known as Saw (Simulator of Architecture Wolf). This approach can be applied to the simulator in order to eliminate overloaded and underloaded units observed during the first experiments on the Wolf architecture. The unexpected results obtained are well-understood if one considers that the architecture simulated is based on a circular pipeline: if there is only one overloaded (or underloaded) unit in the simulator, it can affect the performance of the entire system, adding latency to it. The first attempt to improve the results obtained with the simulator was to calibrate all of the simulator units. The approach used leads to the necessity of dividing the units into two categories: grouped units and isolated units. These two categories are analyzed separately, resulting in modifications to the original architecture.
Keywords :
parallel architectures; performance evaluation; pipeline processing; resource allocation; virtual machines; Saw simulator; Wolf architecture simulator; architectural modifications; circular pipeline; grouped units; isolated units; latency; overloaded unit elimination; parallel architecture; performance; simulator unit calibration; underloaded unit elimination; workload balance problems;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
High Performance Computing in the Asia-Pacific Region, 2000. Proceedings. The Fourth International Conference/Exhibition on
Conference_Location :
Beijing, China
Print_ISBN :
0-7695-0589-2
Type :
conf
DOI :
10.1109/HPC.2000.846568
Filename :
846568
Link To Document :
بازگشت