[petsc-dev] Seeking OLCF users complaining about poor build times

[Nathan Collier]

Barry,

> Do you know where /tmp is on the system? Presumably it is fast?

I am not sure about that. There is a /tmp but I am not sure what it is or
if/how I can use it.

Also, I was the only one running anything on the login node when I did the
configure/make. My configure does include the sowing download.

Nate


On Thu, Feb 26, 2015 at 9:53 PM, Satish Balay <balay at mcs.anl.gov> wrote:

> On Thu, 26 Feb 2015, Nathan Collier wrote:
>
> > Ok, so I am not sure I got all that, but here goes some more information
> > (attached log).
> >
> > No packages / master
> >
> > [nate at titan] time python no_packages.py
> > ...
> > real 14m32.169s
> > user 1m51.527s
> > sys 3m40.734s
> >
> > [nate at titan] time make all
> > ...
> > real 15m56.004s
> > user 8m8.971s
> > sys 52m42.734s
>
> BTW: This number for 'make all' looks bizzare [or I don't know how to
> interpret it].
>
> - 'sys' time is 52m?
> - 'user' time is 8m - but 'real' is 15m - so its not a parallel build?
>    But configure sets 'MAKE_NP = 24' (with gnumake build).
>
> Perhaps its all intel compiler license server overhead? :)
>
> Satish
>
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