CHARACTERIZATION BASED BOTTLENECK ANALYSIS OF PARALLEL SYSTEMS
UNSPECIFIED. (1995) CHARACTERIZATION BASED BOTTLENECK ANALYSIS OF PARALLEL SYSTEMS. SUPERCOMPUTER, 11 (4). pp. 89-101. ISSN 0168-7875Full text not available from this repository.
Bottleneck analysis plays an important role in the early design of parallel computers and programs. In this paper a methodology for bottleneck analysis based on an instruction level characterisation technique is presented. The methodology is based on the assumption that a bottleneck is caused by the slowest component of a computing system, These components are: memory (internal, external), processor (CPU, FPU), communication and I/O. Three metrics were used to identify bottlenecks in the system components. These are the B-ratio, the communication-computation ratio and the memory-processing ratio. These ratios are dimensionless and indicate the presence of a bottleneck when their values exceed unity. The methodology is illustrated and validated using a communication intensive linear solver algorithm (Gauss-Jordan elimination) which was implemented on a mesh connected distributed memory parallel computer (128 T800 Parsytec SuperCluster).
|Item Type:||Journal Article|
|Subjects:||Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software|
|Journal or Publication Title:||SUPERCOMPUTER|
|Official Date:||September 1995|
|Number of Pages:||13|
|Page Range:||pp. 89-101|
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