Title:
Data services: bringing I/O processing to petascale
Data services: bringing I/O processing to petascale
Author(s)
Abbasi, Mohammad Hasan
Advisor(s)
Schwan, Karsten
Editor(s)
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Abstract
The increasing size of high performance computing systems and the associated
increase in the volume of generated data, has resulted in an I/O bottleneck for these applications.
This bottleneck is further exacerbated by the imbalance in the growth of processing
capability compared to storage capability, due mainly to the power and cost requirements
of scaling the storage. This thesis introduces data services, a new abstraction which provides
significant benefits for data intensive applications. Data services combine low overhead
data movement with flexible placement of data manipulation operations, to address
the I/O challenges of leadership class scientific applications. The impact of asynchronous
data movement on application runtime is minimized by utilizing novel server side data
movement schedulers to avoid contention related jitter in application communication. Additionally,
the JITStager component is presented. Utilizing dynamic code generation and
flexible code placement, the JITStager allows data services to be executed as a pipeline
extending from the application to storage. It is shown in this thesis that data services can
add new functionality to the application without having an significant negative impact on
performance.
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Date Issued
2011-07-08
Extent
Resource Type
Text
Resource Subtype
Dissertation