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Subject: Re: [OMPI devel] libtool issue with crs/self
From: Jeff Squyres (jsquyres) (jsquyres_at_[hidden])
Date: 2009-07-28 19:57:53


Josh - this is almost certainly what happened. Yoibks. Unfortunately, there's good reasons for it. :(

What about if we proxy calls to lt_dlopen through an opal function call?

-jms
Sent from my PDA. No type good.

----- Original Message -----
From: devel-bounces_at_[hidden] <devel-bounces_at_[hidden]>
To: Open MPI Developers <devel_at_[hidden]>
Sent: Tue Jul 28 16:39:42 2009
Subject: Re: [OMPI devel] libtool issue with crs/self

It was mentioned to me that r21731 might have caused this problem by
restricting the visibility of the libltdl library.
   https://svn.open-mpi.org/trac/ompi/changeset/21731

Brian,
Do you have any thoughts on how we might extend the visibility so that
MCA components could also use the libtool in opal?
I can try to initialize libtool in the Self CRS component and use it
directly, but since it is already opened by OPAL, I think it might be
better to use the instantiation in OPAL.

Cheers,
Josh

On Jul 28, 2009, at 3:06 PM, Josh Hursey wrote:

> Once upon a time, the Self CRS module worked correctly, but I admit
> that I have not tested it in a long time.
>
> The Self CRS component uses dl_open and friends to inspect the
> running process for a particular set of functions. When I try to run
> an MPI program that contains these signatures I get the following
> error when it tries to resolve lt_dlopen() in
> opal_crs_self_component_query():
> ------------------
> my-app: symbol lookup error: /path/to/install/lib/openmpi/
> mca_crs_self.so: undefined symbol: lt_dlopen
> ------------------
>
> I am configuring with the following:
> ------------------
> ./configure --prefix=/path/to/install \
> --enable-binaries \
> --with-devel-headers \
> --enable-debug \
> --enable-mpi-threads \
> --with-ft=cr \
> --without-memory-manager \
> --enable-ft-thread \
> CC=gcc CXX=g++ \
> F77=gfortran FC=gfortran
> ------------------
>
> The source code is at the link below:
> https://svn.open-mpi.org/trac/ompi/browser/trunk/opal/mca/crs/self
>
>
> Does anyone have any thoughts on what might be going wrong here?
>
> Thanks,
> Josh
>
> _______________________________________________
> devel mailing list
> devel_at_[hidden]
> http://www.open-mpi.org/mailman/listinfo.cgi/devel

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