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Comp. MPI_Alltoall-short and MPI_Gather-short

\epsfig{file=col_MPI_Alltoall-nodes-short.comp063.eps}
msg. len. latency bandwidth msg. len latency bandwidth
[units] [$\mu$s] [1024 units/s] [units] [$\mu$s] [1024 units/s]
Min. msg. length Max. msg. length
(other params also min.) (other params also max.)
Collective MPI_Alltoall-nodes-short
256 61.2 8169.93 256 616.7 97292
Collective MPI_Gather-nodes-short
256 50.7 4930.97 256 229.3 16354.1

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Next: Comp. MPI_Alltoall-length and MPI_Scatter-length Up: Comparisons Previous: Comp. MPI_Alltoall-long and MPI_Gather-long   Contents
Per Ekman 2002-01-31