Re: [ptp-user] Problems with current PTP

[Beth Tibbitts <tibbitts@xxxxxxxxxx>]

Sorry you're having problems, Michele.
Updating: If you installed the "Eclipse IDE for Parallel Application Developers" ("package") and then did a Help > Check for Updates there probably aren't any updates to *that package.*
But then if you install PTP 5.0.7, from the PTP-specific update site, "already installed and will perform an update instead" is what it should say, yes.
So you did the right thing if you installed the package then updated by installing the most recent PTP.
(Described here: http://wiki.eclipse.org/PTP/release_notes/5.0#Updating_from_the_Parallel_Package_to_a_more_recent_release)

>Then I separately downloaded the "proxy" package (v. 5.0.7) and built the sdm.
Sounds like you correctly did what's described here: http://wiki.eclipse.org/PTP/release_notes/5.0#Install_optional_PTP_server_components

You're running locally (eclipse and the mpi program on the same box) right?
Can you launch and run from PTP/Eclipse?
Can you debug a simple MPI 'hello world' program with the PTP Debugger?
I see you have OpenMPI 1.6
Greg may have other insights....



...Beth

Beth Tibbitts
Eclipse Parallel Tools Platform  http://eclipse.org/ptp
IBM STG - High Performance Computing Tools
Mailing Address:  IBM Corp., 745 West New Circle Road, Lexington, KY 40511

Michele De Stefano ---06/16/2012 09:30:52 AM---Yes, I've updated it. A strange thing that happened was that when I tried to update the PTP from

From:	Michele De Stefano <micdestefano@xxxxxxxxx>
To:	PTP User list <ptp-user@xxxxxxxxxxx>,
Date:	06/16/2012 09:30 AM
Subject:	Re: [ptp-user] Problems with current PTP
Sent by:	ptp-user-bounces@xxxxxxxxxxx

---

Yes, I've updated it.

A strange thing that happened was that when I tried to update the PTP from the Eclipse GUI, it did not update anything.
Then I tried to install PTP 5.0.7 and the installer told me that it was already installed and that it would have performed an update instead.

Then I separately downloaded the "proxy" package (v. 5.0.7) and built the sdm.

And I had the problem I described. Some more details. I'm using a Linux CentOS 5.x OS, on a x86_64 machine. I'm using Open MPI 1.6.

Thanks,
Best regards.

Michele

2012/6/16 Rodrigo Fraxino Araujo <rfaraujo@xxxxxxxxxxxxxxxxxx>

Hi Michelle,

I am not the best person to answer, but a problem I've already had was
not updating the SDM binary. Have you updated it along with PTP?

Best regards,
Rodrigo.

On Fri, 15 Jun 2012 23:02:51 +0200
Michele De Stefano <micdestefano@xxxxxxxxx> wrote:

> Hello to everybody.
>
> Today I've tried the latest PTP together with the latest "Eclipse
> distribution for parallel development".
> I had serious problems caused by the debugger (sdm).
>
> Basically, the problem is that an MPI program that runs normally
> without any problem, crashes when debugged through PTP and sdm.
>
> I cannot share the source code (because it's proprietary) but the
> crash happens on a "cout" call (I'm debugging C++ code). Precisely, I
> have pieces of code like this:
>
> if (rank == 0) {
>    cout << "Bla bla bla" << endl;
> }
>
> and when the debugger arrives at the cout call, PTP crashes saying
> something like:
>
> Write: broken pipe.
>
> And then follow some errors saying that one of the processes exited
> abnormally.
>
> If I don't debug the program, or even if I debug it attaching an
> instance of gdb to each process, the crash never happens.
>
> Is there a particular setting that I have to use, or is this a PTP
> bug?
>
> Thank you in advance.
> Best regards.
>

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-- 
Michele De Stefano
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