[hpct] Summary of the issues: Sept 4, 2008

[Vitali A. Morozov]

Hi Guojing;

Thank you very much for a quick response. I am also copying this message 
to the list so that everybody know we have been working on some 
mentioned issues.

1) I confirm, 5 is fixed. Great job!
2) I confirm, 6 is fixed. Very good!

A related question is how to search for a second occurrence?

3) We had the histogram capability in previous releases, so why cannot 
we continue having it? What has changed since, say, March?

4) Please take a look at the picture you sent me in the next message: 
there are two scroll bars: internal, which is what you are looking at, 
and external, which never scrolls.

Issue 1) Agree - difficult to repeat. But there is second part - broken 
PostScript output.
Issue 2) Open
Issue 3) In discussion
Issue 4) Open
Issue 5) Fixed
Issue 6) Fixed

Basically we have 3 issues, and one discussion.

Thanks again,

Vitali






Guojing Cong wrote:
>
> hi Vitali,
>
>
> I believe I fixed 5, 6, and 3.  Note that the histogram capability 
> would have to depend on another software that we (IBM) do not own. 
>  Besides, the original Xprofiler on AIX does not have this capability 
> either.  If you insist on having that, we can open another chanel for 
> discussion, and see how we might get that for you.  There is no 
> technical problem, the issue I believe is purely legal.
>
> Now for 1,  as it is sporadic, we will need to find a way to reproduce 
> that in a repeatable manner.  It might take more time to fix.  For 4, 
> there is a partial fix, and we are working to get it in there.  For 2, 
> I am investigating.  I remember the scroll bar is used when there are 
> many function calls.  I will send you a separte note with the 
> xprofiler attached.
>
> Regards
> Guojing
>
>
>
>
>
>
>
>        
>
>
> *"Vitali A. Morozov" <morozov at anl.gov>*
> Sent by: hpct-bounces at lists.alcf.anl.gov
>
> 09/03/2008 04:18 PM
>
> 	
> To
> 	HPCT Mailing list <hpct at alcf.anl.gov>
> cc
> 	
> Subject
> 	[hpct] Summary of the issues: Sept 4, 2008
>
>
>
> 	
>
>
>
>
>
> Sept 4, 2008: HPCT: Summary of the issues
>
> 1) We want to be able to reduce statistics, generated in mpi_profile.* 
> files, by some sort of MPI_Start_Statistics()/MPI_Stop_Statistics() 
> function calls. As we know from I-hsin, 
> MPI_trace_start()/MPI_trace_stop() calls control tracing part only.
>
> 2) According to I-hsin, "mpi_profile.<rank number> are generated per 
> each MPI rank." We do not see this behavior: 4 files are generated 
> instead with minimal, maximal, mean communication time, and collective 
> over all tasks statistics file called mpi_profile.0. Please clarify 1) 
> what is printed at the end of the run, 2) how to print statistics from 
> a particular MPI task. Examples of the test run would be very useful 
> to have.
>
> 3) What is IHPCT_BASE env. variable? When I should use it?
>
> 4) peekperf does not show sources for Fortran program.
>
> 5) Fortran instrumented program generates "Error getting the 
> executable name, line number information will not be available" message.
>
> 6) peekview single_trace gives the node 0, 8, and 15. Example program 
> was sent to the list already and contains 2 Sends and 2 Recvs. Where 
> are the other communications? See attached screenshot.
>
> 7) peekview on selective instrumentation does not show correct number 
> of calls. From 1 Send and 1 Recv, we see nothing on peekview screen.
>
> 8) HPM part does not work: core file at runtime. Please, give us 
> example of 1) how to compile HPM-instrumented program, 2) what is the 
> result of the run.
>
> 9) Xprofiler has 6 open issues:
> 1.        Load Files, Filter -> Uncluster functions, File -> Screen 
> Dump -> Select Target Window,
> 1.        clicking now on the main window may occasionally cause crach
> 2.        resulting file Xprofiler_screenDump.ps.0 is a balack-box 
> Postscript
> 2.        The meaning on exterior scroll bars in not clear, they never 
> scroll.
> 3.        *Removing Histogram functionality is unacceptable* A more 
> complicated multistep example
> 1.        Load Files
> 2.        Report -> Flat Profile
> 3.        Code Display -> Show Source Code
> 4.        File -> Save as; File -> Close
> 5.        Code Display -> Show Histogram w/Source Code
> 6.        crash
> 4.        Load Files, Report -> Flat Profile, Code Display -> Show 
> Source Code, File -> Save as
> 1.        Close the window by clicking X (not File -> Close)
> 2.        Select another function in Flat Profile
> 3.        Code Display -> Show Source Code; File -> Save as; crush
> 5.        Load Files, Report -> Flat profile, Show Source Code, search 
> anything non-existent, press enter, crash
> 6.        Load Files, Report -> Flat Profile, try to search anything 
> like 'asfsafd', once not found press Enter, crash
>
> Vitali
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