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Physical Sciences and Mathematics Commons™
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Articles 1 - 3 of 3
Full-Text Articles in Physical Sciences and Mathematics
Supporting Irregular Distributions Using Data-Parallel Languages, Ravi Ponnusamy, Yuan-Shin Hwang, Raja Das, Alok Choudhary, Geoffrey Fox
Supporting Irregular Distributions Using Data-Parallel Languages, Ravi Ponnusamy, Yuan-Shin Hwang, Raja Das, Alok Choudhary, Geoffrey Fox
Northeast Parallel Architecture Center
Languages such as Fortran D provide irregular distribution schemes that can efficiently support irregular problems. Irregular distributions can also be emulated in HPF. Compilers can incorporate runtime procedures to automatically support these distributions.
High Performance Fortran And Possible Extensions To Support Conjugate Gradient Algorithms, K. Dincer, Ken Hawick, Alok Choudhary, Geoffrey C. Fox
High Performance Fortran And Possible Extensions To Support Conjugate Gradient Algorithms, K. Dincer, Ken Hawick, Alok Choudhary, Geoffrey C. Fox
Northeast Parallel Architecture Center
We evaluate the High-Performance Fortran (HPF) language for the compact expression and efficient implementation of conjugate gradient iterative matrix-solvers on High Performance Computing and Communications(HPCC) platforms. We discuss the use of intrinsic functions, data distribution directives and explicitly parallel constructs to optimize performance by minimizing communications requirements in a portable manner. We focus on implementations using the existing HPF definitions but also discuss issues arising that may influence a revised definition for HPF-2. Some of the codes discussed are available on the World Wide Web at http://www.npac.syr.edu/hpfa/ alongwith other educational and discussion material related to applications in HPF.
Passion Runtime Library For The Intel Paragon, Alok Choudhary, Rajesh Bordawekar, Sachin More, K. Sivaram, Rajeev Thakur
Passion Runtime Library For The Intel Paragon, Alok Choudhary, Rajesh Bordawekar, Sachin More, K. Sivaram, Rajeev Thakur
Electrical Engineering and Computer Science - All Scholarship
We are developing a runtime library which provides a number of routines to perform the I/O required in parallel applications in an efficient and convenient manner. This is part of a project called PASSION, which aims to provide software support for high-performance parallel I/O at the compiler, runtime and file system levels. The PASSION Runtime Library uses a high-level interface which makes it easy for the user to specify the I/O required in the program. The user only needs to specify what portion of the data structure needs to read from or written to the file, and the PASSION routines …