TY - JOUR
T1 - Comparison of two methods for building astronomical image mosaics on a grid
AU - Katz, Daniel S.
AU - Jacob, Joseph C.
AU - Bruce Berriman, G.
AU - Good, John
AU - Laity, Anastasia C.
AU - Deelman, Ewa
AU - Kesselman, Carl
AU - Singh, Gurmeet
AU - Su, Mei Hui
AU - Prince, Thomas A.
PY - 2005
Y1 - 2005
N2 - This paper compares two methods for running an application composed of a set of modules on a grid. The set of modules (collectively called Montage) generates large astronomical image mosaics by composing multiple small images. The workflow that describes a particular run of Montage can be expressed as a directed acyclic graph (DAG), or as a short sequence of parallel (MPI) and sequential programs. In the first case, Pegasus can be used to run the work/low. In the second case, a short shell script that calls each program can be run. In this paper, we discuss the Montage modules, the workflow run for a sample job, and the two methods of actually running the workflow. We examine the run time for each method and compare the portions that differ between the two methods.
AB - This paper compares two methods for running an application composed of a set of modules on a grid. The set of modules (collectively called Montage) generates large astronomical image mosaics by composing multiple small images. The workflow that describes a particular run of Montage can be expressed as a directed acyclic graph (DAG), or as a short sequence of parallel (MPI) and sequential programs. In the first case, Pegasus can be used to run the work/low. In the second case, a short shell script that calls each program can be run. In this paper, we discuss the Montage modules, the workflow run for a sample job, and the two methods of actually running the workflow. We examine the run time for each method and compare the portions that differ between the two methods.
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U2 - 10.1109/ICPPW.2005.6
DO - 10.1109/ICPPW.2005.6
M3 - Conference article
AN - SCOPUS:33745192302
SN - 1530-2016
VL - 2005
SP - 85
EP - 94
JO - Proceedings of the International Conference on Parallel Processing Workshops
JF - Proceedings of the International Conference on Parallel Processing Workshops
M1 - 1488681
T2 - International Conference on Parallel Processing Workshops 2005, ICPP 2005
Y2 - 14 June 2005 through 17 June 2005
ER -