Inadequate Communication Pattern
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[edit] Fault Description
In a distributed architecture, an inadequate communication patern leads to a performance overhead. For example:
- Using a star pattern for a nearest-neighbor problem makes the root process a bottleneck.
- Using point-to-point communication functions such as send/recv for collective communication is not as efficient as the functions specialized for collective operations such as join/reduce.
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[edit] Other Findings and Contexts
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