Re: [bgl-discuss] A working BGL Makefile for C code

[Chad Glendenin <chad@xxxxxxxxxxx>]

Thanks. I'll try that too.

K.M. Riley pointed out one mistake I was making:  I needed to put the RTS
libraries at the end of the linker command. At least the code compiles now
without complaint. I just have to wait for my turn in the job queue to see
if it runs.

ccg


On Wed, 25 May 2005, Kazutomo Yoshii wrote:

>
> I'm using mpicc which is located at /bgl/BlueLight/ppcfloor/bglsys/bin/.
> It's a shell script to provide necessary options for compiler.
>
> >Could somebody post or mail me the relevant parts of a Makefile that
> >successfully compiles C code with MPI on BGL using XLC (or GCC, if it
> >still works)? Thanks.
> >
> >I tried following the earlier discussion about xlc, but I've had no luck
> >using it. I also tried using what I found on the BGL Wiki
> >(http://www.bgl.mcs.anl.gov/wiki/index.php/ApplicationWorkshop), but I
> >can't seem to link with MPI. I'm trying to use blrts_xlc from the $PATH
> >(which is /opt/ibmcmp/vac/7.0/bin/blrts_xlc), and everything else from
> >/bgl/BlueLight/ppcfloor. Is this correct? Could there be something missing
> >in my environment (since I'm using bash instead of csh)?
> >
> >chad@login2:~/src/vol> make
> >blrts_xlc -g -O -qarch=440 -qmaxmem=64000
> >-I/bgl/BlueLight/ppcfloor/bglsys/include -L.
> >-L/bgl/BlueLight/ppcfloor/bglsys/lib -lmpich.rts -lmsglayer.rts -lrts.rts
> >-ldevices.rts  -c vol.c
> >
> >[ similarly for util.c, vector.c, file.c, and render.c ]
> >
> >blrts_xlc -L/bgl/BlueLight/ppcfloor/bglsys/lib -lmpich.rts -lmsglayer.rts
> >-lrts.rts -ldevices.rts  vol.o util.o vector.o file.o render.o -o vol
> >vol.o: In function `main':
> >/bgl/home1/chad/src/vol/vol.c:573: undefined reference to `MPI_Init'
> >vol.o: In function `finalize':
> >/bgl/home1/chad/src/vol/vol.c:526: undefined reference to `MPI_Finalize'
> >vol.o: In function `init':
> >/bgl/home1/chad/src/vol/vol.c:63: undefined reference to `MPI_Comm_size'
> >/bgl/home1/chad/src/vol/vol.c:66: undefined reference to `MPI_Comm_rank'
> >/bgl/home1/chad/src/vol/vol.c:102: undefined reference to
> >`MPI_Cart_create'
> >/bgl/home1/chad/src/vol/vol.c:105: undefined reference to `MPI_Comm_rank'
> >/bgl/home1/chad/src/vol/vol.c:106: undefined reference to
> >`MPI_Cart_coords'
> >
> >[ et cetera ]
> >
> >Thanks,
> >ccg
> >
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> >
> >
>
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