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Subject: Re: [OMPI users] Need Performance estimation of MPI_Bcast
From: anas trad (tradat84_at_[hidden])
Date: 2012-04-04 09:11:44


Hi  Envoyé ,
Thanks for the reply but I want to estimate the time of executing MPI_Bcast function by mathmatics. I found that we can achieve this by using LogGP model with this equation:
T = ceil(log2p) . (L + 2 · o + (n − 1) · G
but that does not give good accuracy for time evaluation.

--- On Wed, 4/4/12, Aurélien Bouteiller <bouteill_at_[hidden]> wrote:

From: Aurélien Bouteiller <bouteill_at_[hidden]>
Subject: Re: [OMPI users] Need Performance estimation of MPI_Bcast
To: "Open MPI Users" <users_at_[hidden]>
Cc: "users_at_[hidden]" <users_at_[hidden]>
Date: Wednesday, April 4, 2012, 3:50 PM

You can use the intel mpi benchmark, or skampi. These two programs are designed to evaluate Moi performance.

Envoyé de mon iPad
Le 2012-04-04 à 08:46, anas trad <tradat84_at_[hidden]> a écrit :

Hi all,
I need to know the time estimation of executing MPI_Bcast function on Neolith Cluster. Please, can anyone show me how to achieve that.
Thanks,Anas
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