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» Managing the operator ordering problem in parallel databases
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102
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IEEEPACT
2008
IEEE
15 years 7 months ago
Multi-mode energy management for multi-tier server clusters
This paper presents an energy management policy for reconfigurable clusters running a multi-tier application, exploiting DVS together with multiple sleep states. We develop a the...
Tibor Horvath, Kevin Skadron
107
Voted
CCGRID
2009
IEEE
15 years 7 months ago
Improving Parallel Write by Node-Level Request Scheduling
In a cluster of multiple processors or cpu-cores, many processes may run on each compute node. Each process tends to issue contiguous I/O requests for snapshot, checkpointing or s...
Kazuki Ohta, Hiroya Matsuba, Yutaka Ishikawa
112
Voted
SIGMOD
2009
ACM
161views Database» more  SIGMOD 2009»
15 years 7 months ago
Dependency-aware reordering for parallelizing query optimization in multi-core CPUs
The state of the art commercial query optimizers employ cost-based optimization and exploit dynamic programming (DP) to find the optimal query execution plan (QEP) without evalua...
Wook-Shin Han, Jinsoo Lee
89
Voted
IPPS
2000
IEEE
15 years 5 months ago
A Parallel Co-evolutionary Metaheuristic
In order to show that the parallel co-evolution of di erent heuristic methods may lead to an e cient search strategy, we have hybridized three heuristic agents of complementary beh...
Vincent Bachelet, El-Ghazali Talbi
83
Voted
ECIS
2000
15 years 1 months ago
Rapid Knowledge Deployment in an Organizational-Memory-Based Workflow Environment
Abstract-- Knowledge management is becoming a fashion in many organizations. This entails the danger that large investments in knowledge externalization are made with little short-...
Ralf Klamma, Sylvia Schlaphof