[mpich-discuss] undefined symbol: MPIR_Thread

Anthony Chan chan at mcs.anl.gov
Mon Feb 7 11:34:47 CST 2011


The simplest way is probably to use "nm" to see if ccsm.exe has MPI_Comm_spawn
symbol, e.g. 

nm ccsm.exe | grep -i mpi_comm_spawn

Or you can use "find" command to search for the source code, e.g.

find <path_to_ccsm> -name \*.f -exec grep -Hi MPI_Comm_spawn {} \;

The above command should be repeated with ".f" replaced by ".f90", or even ".c"
or other suffixes that are used in CCSM.  Using find will tell you what the
executable names used in MPI_Comm_spawn().

A.Chan

----- Original Message -----
> Could you please help me how to check whether MPI_Comm_spawn is used?
> Thanks!
> 
> On 02/07/2011 05:57 PM, Anthony Chan wrote:
> > Does ccsm.exe use MPI_Comm_spawn ? If so, can you check if any of
> > the spawned executables with ldd ?
> >
> > A.Chan
> >
> > ----- Original Message -----
> >> I now removed all ubuntu mpich2 components from my system, so there
> >> are
> >> ni more references to this library as well...
> >>
> >> --
> >>
> >>
> >> -------------------------------------------------------------
> >> FWO Post-doctoral Research Fellow
> >> Department of Earth& Environmental Sciences
> >> Physical and Regional Geography Research Group
> >> Regional climate studies
> >>
> >> Celestijnenlaan 200E
> >> 3001 Heverlee (Leuven)
> >> BELGIUM
> >>
> >> Tel: + 32 16 326424
> >> Fax: + 32 16 322980
> >>
> >> http://geo.kuleuven.be/aow/
> >> www.kuleuven.be/geography
> >> -------------------------------------------------------------
> 
> --
> 
> 
> -------------------------------------------------------------
> FWO Post-doctoral Research Fellow
> Department of Earth& Environmental Sciences
> Physical and Regional Geography Research Group
> Regional climate studies
> 
> Celestijnenlaan 200E
> 3001 Heverlee (Leuven)
> BELGIUM
> 
> Tel: + 32 16 326424
> Fax: + 32 16 322980
> 
> http://geo.kuleuven.be/aow/
> www.kuleuven.be/geography
> -------------------------------------------------------------


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