[Darshan-users] Alternatives to Darshan for non-MPI applications ?

[Kevin Harms]

  Just for clarification, and you might realize this already, Darshan will record statistics about POSIX calls but yes it does require MPI_Init and MPI_Finalize to start and stop the collection as well as Darshan uses MPI internally to perform collective operations to gather and process all the result data and then write it out.

  If you had a non-MPI application, you could modify to add just MPI_Init/MPI_Finalize and link it to a MPI library and Darshan would still collect statistics about all the POSIX calls.

kevin

On Apr 8, 2013, at 11:05 AM, Maxime Boissonneault <maxime.boissonneault at calculquebec.ca> wrote:

> Hi,
> We are interested in monitoring the IO on our cluster (Colosse @ Laval University, in Quebec). We have been made aware of Darshan last year and started to investigate further. I understand that Darshan is limited to MPI applications only. I suspect the reason for this limitation is the presence of hooks at the beginning and end of each MPI applications (MPI_Init/Finalize). Am I correct with that ?
> 
> If that is the case, is anyone aware of a darshan-like utility that would allow monitoring of non-MPI applications for posix calls ?
> 
> Thank you,
> 
> 
> -- 
> ---------------------------------
> Maxime Boissonneault
> Analyste de calcul - Calcul Québec, Université Laval
> Ph. D. en physique
> 
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