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Choudhary, Alok
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Multicollective I/O: a technique for exploiting inter-file access patterns
Memik G., Kandemir M., Liao W., Choudhary A. ACM Transactions on Storage 2(3): 349-369, 2006. Type: Article
Memik et al. propose a concept called multicollective input/output, which expands an existing technique for accessing data from multiple files in a single request. This approach has applications in parallel systems where more than one ...
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Apr 9 2007
Scalable design and implementations for MPI parallel overlapping I/O
Liao W., Coloma K., Choudhary A., Ward L., Russell E., Pundit N. IEEE Transactions on Parallel and Distributed Systems 17(11): 1264-1276, 2006. Type: Article
A well-known problem in distributed file systems is data consistency in the face of multiple simultaneous overlapping reads and writes. We want this set of operations to produce consistent results. Two writers to the same regions of a ...
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Feb 5 2007
A distributed multi-storage I/O system for data intensive scientific computing
Shen X., Choudhary A. Parallel Computing 29(11-12): 1623-1643, 2003. Type: Article
Shen and Choudhary’s paper further supports the need for having multiple storage systems, but fails to do so with reference to some of the latest media technologies available, such as solid state disk (SSD) devices. The solut...
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Sep 14 2004
Design and implementation of a parallel I/O runtime system for irregular applications
No J., Park S., Perez J., Choudhary A. Journal of Parallel and Distributed Computing 62(2): 193-220, 2002. Type: Article
In a group of scientific and engineering applications (teraflop applications included), data should be rearranged into a canonical form for processing. An example of structural practice in such applications is indirection arrays that f...
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Apr 23 2003
An Experimental Evaluation of I/O Optimizations on Different Applications
Kandaswamy M., Kandemir M., Choudhary A., Bernholdt D. IEEE Transactions on Parallel and Distributed Systems 13(7): 728-744, 2002. Type: Article
The authors’ stated aim is twofold: first, to understand the behavior of large-scale, data intensive applications and the impact of I/O subsystems on their performance, and second, to improve the performance of such applicat...
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Oct 9 2002
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