Performance Modeling
Latency and Bandwidth
Interpreting Latency and Bandwidth
Including Contention
Synchronization Delays
Polling Mode MPI
Interrupt Mode MPI
Example of the effect of Polling
Observing Synchronization Delays
Other Impacts on Performance
Contention
Effect of contention
Memory copies
Example: Performance Impact of Memory Copies
Example: Why MPI Datatypes
Performance of MPI Datatypes
Packet sizes
Example of Packetization
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Home Page: http://www.mcs.anl.gov/~gropp
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