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IPPS
2008
IEEE

Programmability of the HPCS Languages: A case study with a quantum chemistry kernel

14 years 4 months ago
Programmability of the HPCS Languages: A case study with a quantum chemistry kernel
As high-end computer systems present users with rapidly increasing numbers of processors, possibly also incorporating attached co-processors, programmers are increasingly challenged to express the necessary levels of concurrency with the dominant parallel programming model, Fortran+MPI+OpenMP (or minor variations). In this paper, we examine the languages developed under the DARPA High-Productivity Computing Systems (HPCS) program (Chapel, Fortress, and X10) as representatives of a different parallel programming model which might be more effective on emerging high-performance systems. The application used in this study is the Hartree-Fock method from quantum chemistry, which combines access to distributed data with a task-parallel algorithm and is characterized by significant irregularity in the computational tasks. We present several different implementation strategies for load balancing of the task-parallel computation, as well as distributed array operations, in each of the three l...
Aniruddha G. Shet, Wael R. Elwasif, Robert J. Harr
Added 31 May 2010
Updated 31 May 2010
Type Conference
Year 2008
Where IPPS
Authors Aniruddha G. Shet, Wael R. Elwasif, Robert J. Harrison, David E. Bernholdt
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