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WBAP-TV (Television station : Fort Worth, Tex.)
1954-12-31
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Work by the University of Wisconsin as part of the DOE SciDAC CScADS includes the following accomplishments: � Research on tool componentization, with concentration on the: � InstructionAPI and InstructionSemanticsAPI � ParseAPI � DataflowAPI � Co-organized a series of high successful workshops with Prof. John Mellor-Crummey, Rice University, on Performance Tools for Petascale Computing, held in Snowbird, Utah and Lake Tahoe, California in July or August of 2007 through 2012. � Investigated the use of multicore in numerical libraries � Dyninst porting to 32- and 64bit Power/PowerPC (including BlueGene) and 32- and 64-bit Pentium platforms. � Applying our toolkits to advanced problems in binary code parsing associated with dealing with legacy and malicious code.
Our research includes work on infrastructure for extreme scale tools and applications, and techniques for binary code analysis, instrumentation, and control.
Given the exponential increase in the complexity of modern parallel systems, parallel
applications often fail to exploit the full power of the underlying hardware. At scale, it is not
uncommon for applications to run at parallel efficiencies in the low single digits. Moreover,
their optimization is extremely difficult due to the inherent complexity of the systems and the applications themselves. Therefore, a variety of projects have been developing tools and
techniques for the measurement, analysis, and visualization of parallel program performance
in order to help guide users in the optimization process.
This meeting was the third in a series of seminars related to the topic ââ¬ÅPerformance Analysis
of Parallel and Distributed Programsââ¬Â, with previous meetings being the Dagstuhl Seminar
02341 on ââ¬ÅPerformance Analysis ...
From 20th to 24th August 2007, the Dagstuhl Seminar 07341 ``Code Instrumentation and Modeling for Parallel Performance Analysis'' was held in the International Conference and Research Center (IBFI), Schloss Dagstuhl.
During the seminar, several participants presented their current
research, and ongoing work and open problems were discussed. Abstracts of
the presentations given during the seminar as well as abstracts of
seminar results and ideas are put together in this paper. The first section
describes the seminar topics and goals in general.
Links to extended abstracts or full papers are provided, if available.
In this project, we cast distributed resource access as operations on files in a global name space and developed a common, scalable solution for group operations on distributed processes and files. The resulting solution enables tool and middleware developers to quickly create new scalable software or easily improve the scalability of existing software. The cornerstone of the project was the design of a new programming idiom called group file operations that eliminates iterative behavior when a single process must apply the same set of file operations to a group of related files. To demonstrate our novel and scalable ideas for group file operations and global name space composition, we developed a group file system called TBON-FS that leverages a tree-based overlay network (TBON), specifically MRNet, for logarithmic communication and d...
The Workshop on Automatic Performance Analysis (WAPA 2005, Dagstuhl Seminar 05501), held December 13-16, 2005, brought together performance researchers, developers, and practitioners with the goal
of better understanding the methods, techniques, and tools that are needed for the automation of performance
analysis for high performance computing.
From May 2nd to May 7th, 2010, the Dagstuhl Seminar 10181
``Program Development for Extreme-Scale Computing ''
was held in Schloss Dagstuhl~--~Leibniz Center for Informatics.
During the seminar, several participants presented their current
research, and ongoing work and open problems were discussed. Abstracts of
the presentations given during the seminar as well as abstracts of
seminar results and ideas are put together in this paper.
Links to extended abstracts or full papers are provided, if available.
From 12.12.05 to 16.12.05, the Dagstuhl Seminar 05501 ``Automatic Performance Analysis'' was held in the International Conference and Research Center (IBFI),
Schloss Dagstuhl.
During the seminar, several participants presented their current
research, and ongoing work and open problems were discussed. Abstracts of
the presentations given during the seminar as well as abstracts of
seminar results and ideas are put together in this paper. The first section
describes the seminar topics and goals in general.
Links to extended abstracts or full papers are provided, if available.
From May 2nd to May 7th, 2010, the Dagstuhl Seminar 10181
``Program Development for Extreme-Scale Computing ''
was held in Schloss Dagstuhl~--~Leibniz Center for Informatics.
During the seminar, several participants presented their current
research, and ongoing work and open problems were discussed.
This paper provides an executive summary of the seminar.
