Re: [ptp-user] parallel application run failure

[Dave Wootton <dwootton@xxxxxxxxxx>]

Brett
I have a small MPI program, two tasks,
I ran that outputs a single line of text, about 100 bytes long to stdout.
If the program runs for a few seconds, then I see the output appear in
the console view, assuming I have checked the  'Display combined output
in a console view'.

A few questions for you

Is your program writing to stdout using
stdio functions (printf, etc) or writing to file descriptor 1 using write()
system calls, assuming C/C++ code. If it's Fortran code are you using write/print
statements?

With the PTP runtime jobs view open,
normal behavior should be seeing is that a blue job icon briefly appears
in the left hand pane of teh jobs view. After a couple seconds, it should
turn into a green triangle and green diamond icons appear in the right
hand pane of the jobs view, 1 per task. When the job completes, the job
icon and the diamond icons should turn red. Are you seeing this sequence
or something else?

Once the job completes, if you double
click on the leftmost red diamond icon, which represents task 0, a 'Process
details' window should appear in the editor pane of the perspective, with
the job output appearing there. You should also be able to do this when
the icon is green and watch stdout in real time. Do you see anything there?

If you open the error log view, do you
see any errors (red icons) logged related to the run?

Does it appear that the program is otherwise
running to completion (other data files it writes other than stdout/stderr
get created correctly)?

I'm seeing the output almost immediately
after I start the program. If you change your test program so that it runs
for something like 10 seconds instead of running quickly, or an infinite
loop, does that affect the output?
Dave

Re: [ptp-user] parallel application run failure

Brett Bode

to:

PTP User list

08/11/2009 03:09 PM

Sent by:

ptp-user-bounces@xxxxxxxxxxx

Please respond to PTP User list

---

It can be a short running job, but I have modified
it to go into an  
infinite loop as well. When it's setup as a short running task the  
second console window does not open at all. The traceback shows up for
 
both cases. In any event I would hope that I would be able to see the  
output of even something as trivial as hostname.

Brett
On Aug 11, 2009, at 2:05 PM, Greg Watson wrote:

> Brett,
>
> Is this a short running job (e.g. hello world)? If so, it's possible
 
> the program is exiting before any output can be displayed. You could
 
> test this by adding a sleep(1) at the end of the program.
>
> Greg
>
> On Aug 11, 2009, at 2:32 PM, Brett Bode wrote:
>
>> Hello all,
>>  I am having a problem where I am attempting to run a simple
MPI  
>> application remotely on an AIX 6.1 system utilizing the PE RM
proxy  
>> (this is with the 8/5 PTP 3.0 build and corresponding RDT server,
 
>> etc). It appears that the application launches and runs  
>> successfully, but I do not receive any output back to the console
 
>> in eclipse. I have tried several things including specifying a
file  
>> for the output and error (that does appear to work), but have
had  
>> no luck getting output back to the eclipse console.
>>
>> If I set the app up to go into a loop I see a console list the
 
>> build results (that works fine) and then a new console opens up
but  
>> remains empty. If I set the app up to run (quickly) to termination
 
>> the 2nd console doesn't open at all. The only clue I see is a
 
>> traceback on the server side in the window running the RDT server
 
>> process:
>>
>>                
  java.io.IOException: Pipe closed
>>      at java.io.PipedInputStream.read(PipedInputStream.java:263)
>>      at  
>> com.ibm.jvm.io.ProcessInputStream.read(ProcessInputStream.java:92)
>>      at java.io.FilterInputStream.read(FilterInputStream.java:89)
>>      at  
>> org 
>> .eclipse 
>> .rse 
>> .internal 
>> .dstore 
>> .universal 
>> .miners.command.OutputHandler.readLines(OutputHandler.java:168)
>>      at  
>> org 
>> .eclipse 
>> .rse 
>> .internal 
>> .dstore 
>> .universal.miners.command.OutputHandler.handle(OutputHandler.java:91)
>>      at org.eclipse.dstore.core.model.Handler.finish(Handler.java:
>> 102)
>>      at  
>> org 
>> .eclipse 
>> .rse 
>> .internal 
>> .dstore 
>> .universal.miners.command.OutputHandler.handle(OutputHandler.java:
>> 110)
>>      at org.eclipse.dstore.core.model.Handler.run(Handler.java:135)
>>
>> I do have the "Display combined output in console view"
box  
>> checked, though I have also tried it without it checked.
>>
>> Brett
>>
>>
>> _______________________________________________
>> ptp-user mailing list
>> ptp-user@xxxxxxxxxxx
>> https://dev.eclipse.org/mailman/listinfo/ptp-user
>
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