The problem is that you set the build and the host to the -same- architecture - that indicates it isn't a cross-compile situation. The --host flag should indicate the arch of the machines that will run the code - in your case, that would be i386-pc-linux-gnu
On Oct 25, 2010, at 12:30 PM, saahil...@gmail.com wrote: > I also tried by adding > > --host=i686-pc-linux-gnu > > alongwith the --build option. Same error :( > > On Oct 25, 2010 11:59pm, saahil...@gmail.com wrote: > > Ralph, > > As you suggested, I configured with the following options - > > > > ./configure --prefix=/home/wolf/openmpi/ CFLAGS=-m32 CXXFLAGS=-m32 > > FFLAGS=-m32 FCFLAGS=-m32 --build=i686-pc-linux-gnu LDFLAGS=-m32 > > > > I'm afraid I am still getting the same error messages while making as I did > > last time. Did I fail to understand what you said? Am I doing something > > wrong here? > > > > Regards, > > Saahil > > > > On Oct 25, 2010 11:35pm, Ralph Castain r...@open-mpi.org> wrote: > > > Do ./configure --help and you'll see options for specifying the host and > > > build target. You need to do that when cross-compiling. > > > > > > > > > > > > > > > > > > On Oct 25, 2010, at 12:01 PM, saahil...@gmail.com wrote: > > > > > > > > > > > > > ---------- Forwarded message ---------- > > > > > > > From: saahil...@gmail.com > > > > > > > Date: Oct 25, 2010 11:26pm > > > > > > > Subject: Cross compiling for 32 bit from a 64 bit machine > > > > > > > To: us...@open-mpi.org > > > > > > > CC: > > > > > > > > > > > > > > > > > > > > > > Hello, > > > > > > > > I am a beginner using Open MPI to set up a simple Beowulf cluster of > > > > > PCs for my Distributed Systems lab. My head node is my x86_64 > > > > > architecture Fedora 12 machine. The rest of my nodes are i386 Fedora > > > > > 13 machines. I understand that I need to compile Open MPI with > > > > > CFLAGS=-m32 so that I can use -m32 flag to create a 32 bit compatible > > > > > binary. I could not do this using yum install. So I am using the > > > > > tarball for Open MPI 1.5. > > > > > > > > my configure command is as follows - > > > > > > > > > > > > > > > > ./configure --prefix=/home/wolf/openmpi/ CFLAGS=-m32 CXXFLAGS=-m32 > > > > > FFLAGS=-m32 FCFLAGS=-m32 > > > > > > > > > > > > > > > > This works fine. However, while doing make I get the following errors > > > > > - > > > > > > > > > > > > > > > > /usr/bin/ld: i386:x86-64 architecture of input file > > > > > `../opal/libltdl/.libs/libltdlc.a(libltdlc_la-preopen.o)' is > > > > > incompatible with i386 output > > > > > > > > /usr/bin/ld: i386:x86-64 architecture of input file > > > > > `../opal/libltdl/.libs/libltdlc.a(libltdlc_la-lt__alloc.o)' is > > > > > incompatible with i386 output > > > > > > > > /usr/bin/ld: i386:x86-64 architecture of input file > > > > > `../opal/libltdl/.libs/libltdlc.a(libltdlc_la-lt_dlloader.o)' is > > > > > incompatible with i386 output > > > > > > > > /usr/bin/ld: i386:x86-64 architecture of input file > > > > > `../opal/libltdl/.libs/libltdlc.a(libltdlc_la-lt_error.o)' is > > > > > incompatible with i386 output > > > > > > > > /usr/bin/ld: i386:x86-64 architecture of input file > > > > > `../opal/libltdl/.libs/libltdlc.a(libltdlc_la-ltdl.o)' is > > > > > incompatible with i386 output > > > > > > > > /usr/bin/ld: i386:x86-64 architecture of input file > > > > > `../opal/libltdl/.libs/libltdlc.a(libltdlc_la-slist.o)' is > > > > > incompatible with i386 output > > > > > > > > /usr/bin/ld: i386:x86-64 architecture of input file > > > > > `../opal/libltdl/.libs/libltdlc.a(lt__strl.o)' is incompatible with > > > > > i386 output > > > > > > > > /usr/bin/ld: i386:x86-64 architecture of input file > > > > > `../opal/libltdl/.libs/libltdlc.a(libltdlcS.o)' is incompatible with > > > > > i386 output > > > > > > > > /usr/bin/ld: i386:x86-64 architecture of input file > > > > > `../opal/libltdl/.libs/libltdlc.a(dlopen.o)' is incompatible with > > > > > i386 output > > > > > > > > /usr/bin/ld: i386:x86-64 architecture of input file > > > > > `asm/.libs/libasm.a(atomic-asm.o)' is incompatible with i386 output > > > > > > > > /usr/bin/ld: i386:x86-64 architecture of input file > > > > > `event/.libs/libevent.a(signal.o)' is incompatible with i386 output > > > > > > > > /usr/bin/ld: i386:x86-64 architecture of input file > > > > > `event/.libs/libevent.a(epoll.o)' is incompatible with i386 output > > > > > > > > /usr/bin/ld: i386:x86-64 architecture of input file > > > > > `event/.libs/libevent.a(poll.o)' is incompatible with i386 output > > > > > > > > /usr/bin/ld: i386:x86-64 architecture of input file > > > > > `event/.libs/libevent.a(select.o)' is incompatible with i386 output > > > > > > > > /usr/bin/ld: final link failed: Invalid operation > > > > > > > > collect2: ld returned 1 exit status > > > > > > > > make[2]: *** [libopen-pal.la] Error 1 > > > > > > > > make[2]: Leaving directory `/home/wolf/Downloads/openmpi-1.5/opal' > > > > > > > > make[1]: *** [all-recursive] Error 1 > > > > > > > > make[1]: Leaving directory `/home/wolf/Downloads/openmpi-1.5/opal' > > > > > > > > make: *** [all-recursive] Error 1 > > > > > > > > > > > > > > > > > > > > > > > > Any idea as to how to go around fixing this? Any help would be > > > > > greatly regarded, since I'm supposed to meet a deadline, and half of > > > > > my semester has been spent trying to get either LAM-MPI or Open MPI > > > > > (which I was suggested I shift to) to work. > > > > > > > > Thank you very much. > > > > > > > > > > > > > > > > Regards, > > > > > > > > Saahil_______________________________________________ > > > > > > > users mailing list > > > > > > > us...@open-mpi.org > > > > > > > http://www.open-mpi.org/mailman/listinfo.cgi/users > > > > > > > > > > > > > > > > > > _______________________________________________ > > > > > > users mailing list > > > > > > us...@open-mpi.org > > > > > > http://www.open-mpi.org/mailman/listinfo.cgi/users > > >_______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
