[Darshan-users] Computation and I/O Modelling

[Ruchi Pandey]

Hello Phil,

Thank you for the reply.
Is there any relation among the log files that I could use in defining an
I/O Model?

Best
Ruchi


On Mon, Jul 15, 2019 at 3:25 PM Carns, Philip H. <carns at mcs.anl.gov> wrote:

> Hi Ruchi,
>
> Unfortunately Darshan doesn't directly capture computation effort.  The
> only thing it can really tell you is how much time was spent *not* doing
> I/O.  You could assume that is computation time, but really it could
> include communication, synchronization, or any other non-I/O tasks that
> Darshan might be doing.
>
> The module infrastructure in Darshan now would be a possible vehicle to
> add a mechanism for tracking compute effort, but that hasn't been done (and
> wouldn't apply to previously collected logs anyway).
>
> thanks,
> -Phil
> ------------------------------
> *From:* Darshan-users <darshan-users-bounces at lists.mcs.anl.gov> on behalf
> of Ruchi Pandey via Darshan-users <darshan-users at lists.mcs.anl.gov>
> *Sent:* Friday, July 12, 2019 5:47 AM
> *To:* darshan-users at lists.mcs.anl.gov
> *Subject:* [Darshan-users] Computation and I/O Modelling
>
> Hello,
>
> I am student at TU Darmstadt,Germany and currently doing my master thesis.
> For the same I am trying to derive a statistical model from the data from
> Darshan published in the The ALCF I/O Data Repository.
> Could someone point me as to how to extract the computation effort from
> the darshan-parser output from the above logs?
>
> Best
> Ruchi
>
>
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