This *usually* means that you are linking against the "wrong" libmpi
(e.g., the libmpi that belongs to another MPI implementation).
Ensure that some other MPI didn't also get installed to /usr/local
and overwrite LAM's libmpi, for example.
On Aug 26, 2007, at 5:23 PM, YFang wrote:
> Dear All,
>
>
> After I install lam/mpi, I am trying to build the examples in
> that directory. But whenever, I typed, cd example; make ; I got
> the following error message,
>
>
>
> .............................
> yfang_at_YFANG:~/download/lam-7.1.3/examples$ make
> Making all in alltoall
> make[1]: Entering directory `/home/yfang/download/lam-7.1.3/
> examples/alltoall'
> mpicc -O3 -pthread -o alltoall alltoall.o
> alltoall.o : In function `main':
> alltoall.c:(.text+0x31): undefined reference to `lam_mpi_comm_world'
> alltoall.c:(.text+0x41): undefined reference to `lam_mpi_comm_world'
> alltoall.c:(.text+0x7c): undefined reference to `lam_mpi_comm_world'
> alltoall.c:(.text+0x90): undefined reference to `lam_mpi_int'
> alltoall.c:(.text+0xb3): undefined reference to `lam_mpi_comm_world'
> alltoall.c:(.text+0xc7): undefined reference to `lam_mpi_int'
> alltoall.c: (.text+0x129): undefined reference to `lam_mpi_comm_world'
> alltoall.c:(.text+0x139): undefined reference to `lam_mpi_int'
> alltoall.c:(.text+0x191): undefined reference to `lam_mpi_comm_world'
> alltoall.c: (.text+0x1a1): undefined reference to `lam_mpi_int'
>
>
> what's wrong with this?
>
> I run laminfo, get the following message,
> yfang_at_YFANG:~/download/lam-7.1.3/examples$ laminfo
> LAM/MPI: 7.1.3
> Prefix: /usr/local
> Architecture: i686-pc-linux-gnu
> Configured by: root
> Configured on: Sun Aug 26 14:26:59 EDT 2007
> Configure host: YFANG
> Memory manager: ptmalloc2
> C bindings: yes
> C++ bindings: yes
> Fortran bindings: yes
> C compiler: gcc
> C++ compiler: g++
> Fortran compiler: g77
> Fortran symbols: double_underscore
> C profiling: yes
> C++ profiling: yes
> Fortran profiling: yes
> C++ exceptions: no
> Thread support: yes
> ROMIO support: yes
> IMPI support: no
> Debug support: no
> Purify clean: no
> SSI boot: globus (API v1.1, Module v0.6)
> SSI boot: rsh (API v1.1, Module v1.1)
> SSI boot: slurm (API v1.1, Module v1.0)
> SSI coll: lam_basic (API v1.1, Module v7.1)
> SSI coll: shmem (API v1.1, Module v1.0)
> SSI coll: smp (API v1.1, Module v1.2)
> SSI rpi: crtcp (API v1.1, Module v1.1)
> SSI rpi: lamd (API v1.0 , Module v7.1)
> SSI rpi: sysv (API v1.0, Module v7.1)
> SSI rpi: tcp (API v1.0, Module v7.1)
> SSI rpi: usysv (API v1.0, Module v7.1)
> SSI cr: self (API v1.0, Module v1.0)
>
>
>
> thanks, appreciate ur answer
>
>
>
>
>
>
> _______________________________________________
> This list is archived at http://www.lam-mpi.org/MailArchives/lam/
--
Jeff Squyres
Cisco Systems
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