Deploying CPU Load Balancing in the Linux Cluster Using Non-Repetitive CPU Selection

Balancing CPU Load for Irregular MPI Applications

MPI applications typically are designed to be run on a parallel machine with one process per core. If processes exhibit different computational load, either the code must be rewritten for load balancing, with negative side-effects on readability and maintainability, or the one-process-per-core philosophy leads to a low utilization of many processor cores. If several processes are mapped per cor...

Understanding the Linux 2.6.8.1 CPU Scheduler

Cpu Cpu 1 Cpu 2 Cpu

Coherent-cache shared-memory architectures often give disappointing performance which can be alleviated by manual tuning. We describe a new trace analysis tool, clarissa, which helps diagnose problems and pinpoint their causes. Unusually, clarissa works by analysing potential contention, instead of measuring predicted contention by simulating a speciic memory system design. This is important be...

6 - change 7 - changeIter . Excess CPU Excess CPU Excess CPU Excess CPU Excess CPU

Energy-efficient CPU frequency control for the Linux system