Open MPI User's Mailing List Archives

Subject: [OMPI users] Does OpenMPI's MPI_Barrier automatically call the tuned version?
From: Shanyuan Gao (sygao.research_at_[hidden])
Date: 2009-03-23 06:02:03

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• Reply: Jeff Squyres: "Re: [OMPI users] Does OpenMPI's MPI_Barrier automatically call thetuned version?"

HI,

Here I am again with questions about MPI_Barrier. I did some
benchmark on MPI_Barrier and wondered if OpenMPI's
implementation automatically calls the tuned version of MPI_Barrier,
e.g. tree algorithm, when the number of nodes exceeds 4?

Any thoughts are welcomed. :D

Shan

• Next message: Olaf Lenz: "[OMPI users] mpirun/exec requires ssh?"
• Previous message: Ethan Mallove: "Re: [OMPI users] Compiling Open MPI with PGI compilers in 32-bit mode"
• Next in thread: Jeff Squyres: "Re: [OMPI users] Does OpenMPI's MPI_Barrier automatically call thetuned version?"
• Reply: Jeff Squyres: "Re: [OMPI users] Does OpenMPI's MPI_Barrier automatically call thetuned version?"