Parallel I/O from the User's Perspective
نویسندگان
چکیده
Parallel I/O systems are gaining popularity as a means for providing scalable high bandwidth I/O. In this paper we develop abstract models of parallel I/O systems and provide empirical results that show how I/O intensive applications interact with the elements of parallel I/O systems. The abstract models are useful for explaining parallel I/O performance to developers of applications requiring high performance I/O and the experimental results provide insight into the I/O performance of present generation parallel machines. We also identify optimizations for improving I/O performance, which should be useful for developers of applications and I/O libraries.
منابع مشابه
User Experience and HCI
but I prefer to use needs and desires because I feel these terms better frame discussions from the user's perspective, and work better when discussing the parallel between an organization's perspective and that of the user of its products.
متن کاملThe Effect of Technological Changes on Employment: Regional I-O SDA Approach
I n this study, the Regional Input- Output Structural Decomposition Analysis (I-O SDA) is used to investigate the effects of technological changes on employment in Sistan and Baluchestan Province of Iran during 2006-2011. This paper develops the SDA method to decompose the technological change from two viewpoints of supply and demand for intermediate inputs in each sector. These chan...
متن کاملA Performance Monitoring Environment and its Use for the Study of Paging and I/O Activity of Parallel Programs
We present a suite Df tools the Musketeers for monitoring and analysis of paging, I/O and communication activity of parallel programs. The tools support automatic instrumentation and allow the user to select the statements to be instrumented and to define the format of a trace record, and to include data from kernel structures and from the user's address space. We discuss a methodology to corre...
متن کاملAn Intelligent Computer Interface Utilizing Parallel Picocontrollers (TECHNICAL NOTE)
The design of an interface unit is described, in which RS232 serial data is converted to latched parallel data on 22 independent lines. The data direction of each line is programmable through the serial port. Two picocontrollers are employed in a parallel processing mode to give the required number of I/O pins, and data on the shared serial line is coded to separate data streams to the individu...
متن کاملExploiting Mapped Files for Parallel I/O
Harnessing the full I/O capabilities of a large-scale multiprocessor is difficult and requires a great deal of cooperation between the application programmer, the compiler and the operating (/file) system. Hence, the parallel I/O interface used by the application to communicate with the system is crucial in achieving good performance. We present a set of properties we believe that a good I/O in...
متن کامل