Charm++ parallel programming system

[Ronak Buch <ronakbuch AT gmail.com>]

Hi Jozsef,

As described in the manual (http://charm.cs.illinois.edu/manuals/html/projections/manual-1p.html), idle time is time that the scheduler has nothing to run.  There is also overhead, which is time spent in uninstrumented code, such as the runtime system.

A user event should show up in the timeline graph by default.  Double check, if you could, that the appropriate boxes are ticked in the View -> Show & Hide User Events menu item.

Thanks,

Ronak

On Wed, Jan 6, 2016 at 4:56 PM, Jozsef Bakosi <jbakosi AT gmail.com> wrote:

Hi folks,

If I understand correctly, the projections tool collects information on entry methods only by default. If that is the case, how can I add timing of a non-entry method?

Also, what is the definition of "idle time" and how can I find out the reason for it? Does idle time include simply a CPU waiting for work or does it include some work that is not timed, i.e., not in the projections database?

I have added a user event for a section that I *think* ought to show up on the timeline but I don't see it on the timeline graph, only on the user events list.

Can someone please explain?

Thanks in advance,

Jozsef