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Issue No.06 - June (2003 vol.14)
pp: 581-592
<p><b>Abstract</b>—Conventional gang scheduling has the disadvantage that when processes perform I/O or blocking communication, their processors remain idle because alternative processes cannot be run independently of their own gangs. To alleviate this problem, we suggest a slight relaxation of this rule: match gangs that make heavy use of the CPU with gangs that make light use of the CPU (presumably due to I/O or communication activity), and schedule such pairs together, allowing the local scheduler on each node to select either of the two processes at any instant. As I/O-intensive gangs make light use of the CPU, this only causes a minor degradation in the service to compute-bound jobs. This degradation is more than offset by the overall improvement in system performance due to the better utilization of the resources.</p>
Gang scheduling, job mix, flexible resource management.
Yair Wiseman, Dror G. Feitelson, "Paired Gang Scheduling", IEEE Transactions on Parallel & Distributed Systems, vol.14, no. 6, pp. 581-592, June 2003, doi:10.1109/TPDS.2003.1206505
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