Open MPI logo

Open MPI Development Mailing List Archives

  |   Home   |   Support   |   FAQ   |  

This web mail archive is frozen.

This page is part of a frozen web archive of this mailing list.

You can still navigate around this archive, but know that no new mails have been added to it since July of 2016.

Click here to be taken to the new web archives of this list; it includes all the mails that are in this frozen archive plus all new mails that have been sent to the list since it was migrated to the new archives.

Subject: Re: [OMPI devel] Restarting and Pipes
From: Ralph Castain (rhc_at_[hidden])
Date: 2014-04-10 11:14:53


We hold an extra pipe to capture the output for diagnostic output generated by opal_output statements so it can be separated from the app's stdout/stderr streams

On Apr 10, 2014, at 8:03 AM, Adrian Reber <adrian_at_[hidden]> wrote:

> Trying to restart a process I see that orterun has three pipes connected
> to the processes running under its control (-np 1).
>
> orterun:
>
>
> orterun 11562 adrian 15w FIFO 0,8 0t0 5304173 pipe
> orterun 11562 adrian 16r FIFO 0,8 0t0 5304174 pipe
> orterun 11562 adrian 18r FIFO 0,8 0t0 5304175 pipe
>
>
> test-case (orte-test):
>
> orte-test 11565 adrian 0r FIFO 0,8 0t0 5304173 pipe
> orte-test 11565 adrian 1u CHR 136,15 0t0 18 /dev/pts/15
> orte-test 11565 adrian 2w FIFO 0,8 0t0 5304174 pipe
> [...]
> orte-test 11565 adrian 19w FIFO 0,8 0t0 5304175 pipe
>
> So fd 0 and fd 2 is clear why they are connected from orterun to the test-case
> but what is fd 19?
>
>
> Adrian
> _______________________________________________
> devel mailing list
> devel_at_[hidden]
> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/devel
> Link to this post: http://www.open-mpi.org/community/lists/devel/2014/04/14488.php