[MPICH] problems linking with mpe

[Anthony Chan]

None of the released MPE versions has thread support ? What thread library
are you using, e.g. pthread ?

A.Chan

On Sun, 14 Jan 2007, David Minor wrote:

> Hi Anthony,
> The linking seems to be fine. I turned the dll's into static libs, still no logs.  Perhaps mpe doesn't override MPI_Init_thread?  I'd like to set a break point at the first place an mpe call should be made. What would you recommend?
> Regards,
> David
>
> -----Original Message-----
> From: Anthony Chan [mailto:chan at mcs.anl.gov]
> Sent: Monday, January 08, 2007 12:46 PM
> To: David Minor
> Cc: mpich-discuss at mcs.anl.gov
> Subject: Re: [MPICH] problems linking with mpe
>
>
> Hi David,
>
> On Mon, 8 Jan 2007, David Minor wrote:
>
> > I agree the problem is not with mpe. I'm clearly doing something wrong
> > with linking or perhaps the run-time linker isn't linking things in the
> > proper order. I use the term dll as a generic term for "dynamic linked
> > library", on linux they have a .so suffix and on windows .dll. I'm
> > working in linux. I have a dll and an executable. The executable is
> > launched by mpiexec, run from another program, all environemnt variables
> > are passed in and the program runs correctly. There are simply no log
> > files created either in /tmp or in the working directory. if I do nm
> > [binary file] | c++filt | grep -i mpe | wc -l, I get 50 on both the dll
> > and the executable file (same results for cpi as well), meaning there
> > are 50 symbols with MPE_ in them. I'm also using c++ not c, if that
> > makes a difference. What could be preventing the logging from taking
> > place?
>
> I actually don't know what exactly went wrong in your app.  Since MPE
> logging is enabled through a specific linking order, my guess is that
> some(if not all) of your .so files may not have their symbols resolved
> correctly with liblmpe.a and libmpe.a.  Having MPE symbols does not
> necessarily mean that linking order is done correctly.  Since you are
> using C++, I would think that you need to resolve all MPI C++ binding
> first, i.e. that is the linking order should
> ...  -lmpichcxx -llmpe -lmpe -lmpich ...
> Is it what you did ?
>
> A.Chan
>
>