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Collective-pattern

We want to use the following pattern to measure collective operations:
$\begin{spacing}{1} \begin{verbatim}/* server-code */MPI_Barrier; for i := 1 ... ... answer for routine_to_be_measured */ MPI_Barrier();\end{verbatim}\end{spacing}$

Subsections

MPI_Barrier-nodes
MPI_Bcast-length
MPI_Bcast-nodes-long
MPI_Bcast-nodes-short

Per Ekman 2002-10-03