3 papers
cs.AR2019
Appearances of the Birthday Paradox in High Performance Computing
Victor Eijkhout, Margaret Myers, John McCalpin
We give an elementary statistical analysis of two High Performance Computing issues, processor cache mapping and network port mapping. In both cases we find that, as in the birthda…
cs.DC2018
Task Graph Transformations for Latency Tolerance
Victor Eijkhout
The Integrative Model for Parallelism (IMP) derives a task graph from a higher level description of parallel algorithms. In this note we show how task graph transformations can be…
cs.DC2018
Performance of MPI sends of non-contiguous data
Victor Eijkhout
We present an experimental investigation of the performance of MPI derived datatypes. For messages up to the megabyte range most schemes perform comparably to each other and to man…