Supporting Relative Debugging for Large-scale UPC Programs | Zendy

Minh Ngoc Dinh | Zendy; David Abramson | Zendy; Chao Jin | Zendy; Luiz DeRose | Zendy; Bob Moench | Zendy; Andrew Gontarek | Zendy

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Supporting Relative Debugging for Large-scale UPC Programs

Author(s) -

Minh Ngoc Dinh,

David Abramson,

Chao Jin,

Luiz DeRose,

Bob Moench,

Andrew Gontarek

Publication year - 2014

Publication title -

procedia computer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.334

H-Index - 76

ISSN - 1877-0509

DOI - 10.1016/j.procs.2014.05.135

Subject(s) - computer science , debugging , scale (ratio) , programming language , software engineering , quantum mechanics , physics

Relative debugging is a useful technique for locating errors that emerge from porting existing code to new programming language or to new computing platform. Recent attention on the UPC programming language has resulted in a number of conventional parallel programs, for example MPI programs, being ported to UPC. This paper gives an overview on the data distribution concepts used in UPC and establishes the challenges in supporting relative debugging technique for UPC programs that run on large supercomputers. The proposed solution is implemented on an existing parallel relative debugger CCDB, and the performance is evaluated on a Cray XE6 system with 16,348 cores

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