Thread: sacio.a for 64 bit Linux

Started: 2009-01-14 22:18:16
Last activity: 2009-01-15 20:26:09
Topics: SAC Help
Steve Gao
sacio.a for 64 bit Linux
2009-01-14 22:18:16
Hi SAC experts,

We have just obtained an X86-64 Redhat Linux server and I would like to install SAC on it. SAC itself works fine on the 64 bit machine but the lib/sacio.a file that came with the package cannot be compiled with FORTRAN codes.

Please help.

Thanks.

Steve

----------------------------

Here is the error message when "make" was typed:

g77 -g readsac.f -o readsac.exe \
/home/sgao/subs/wsac1gao.f \
/home/sgao/soft/sac/lib/sacio.a

/usr/bin/ld: warning: i386 architecture of input file `/home/sgao/soft/sac/lib/sacio.a(getfhv.o)' is incompatible with i386:x86-64 output
/usr/bin/ld: warning: i386 architecture of input file `/home/sgao/soft/sac/lib/sacio.a(rsac1.o)' is incompatible with i386:x86-64 output
....


A *.exe file was created by when I tried to run it, it produced a Segmentation fault.


=======================================
Stephen S. Gao, PhD,
Associate Professor of Geophysics,
Department of Geological Sciences and Engineering,
Missouri University of Science & Technology (MST)
129 McNutt Hall, Rolla, Missouri 65409,
E-mail: sgao<at>mst.edu <sgao<at>mst.edu>
Office Phone: (573)-341-6676, FAX:(573)-341-6935
http://www.mst.edu/~sgao
http://mars.device.mst.edu/GG (Geology & Geophysics at MST)

--------------------------------------------------------------------------------------------
MST History:
1870-1964: Missouri School of Mines and Metallurgy (MSM)
1964-2007: University of Missouri-Rolla (UMR)
2008------: Missouri University of Science & Technology (MST)
++++++++++++++++++++++++++++++++++++++++++++++++++++



  • Brian Savage
    Re: sacio.a for 64 bit Linux
    2009-01-15 00:33:26
    Steve,

    Try compiling the fortran code with the -m32 option.

    Cheers
    Brian Savage
    savage!@uri.edu


    On Jan 14, 2009, at 3:18 PM , Gao, Stephen S. wrote:

    Hi SAC experts,

    We have just obtained an X86-64 Redhat Linux server and I would
    like to install SAC on it. SAC itself works fine on the 64 bit
    machine but the lib/sacio.a file that came with the package cannot
    be compiled with FORTRAN codes.

    Please help.

    Thanks.

    Steve

    ----------------------------

    Here is the error message when "make" was typed:

    g77 -g readsac.f -o readsac.exe \
    /home/sgao/subs/wsac1gao.f \
    /home/sgao/soft/sac/lib/sacio.a

    /usr/bin/ld: warning: i386 architecture of input file `/home/sgao/
    soft/sac/lib/sacio.a(getfhv.o)' is incompatible with i386:x86-64
    output
    /usr/bin/ld: warning: i386 architecture of input file `/home/sgao/
    soft/sac/lib/sacio.a(rsac1.o)' is incompatible with i386:x86-64 output
    ....


    A *.exe file was created by when I tried to run it, it produced a
    Segmentation fault.


    =======================================
    Stephen S. Gao, PhD,
    Associate Professor of Geophysics,
    Department of Geological Sciences and Engineering,
    Missouri University of Science & Technology (MST)
    129 McNutt Hall, Rolla, Missouri 65409,
    E-mail: sgao<at>mst.edu <sgao<at>mst.edu>
    Office Phone: (573)-341-6676, FAX:(573)-341-6935
    http://www.mst.edu/~sgao
    http://mars.device.mst.edu/GG
    (Geology & Geophysics at MST)

    ----------------------------------------------------------------------
    ----------------------
    MST History:
    1870-1964: Missouri School of Mines and Metallurgy (MSM)
    1964-2007: University of Missouri-Rolla (UMR)
    2008------: Missouri University of Science & Technology (MST)
    ++++++++++++++++++++++++++++++++++++++++++++++++++++


    _______________________________________________
    sac-help mailing list
    sac-help<at>iris.washington.edu
    http://www.iris.washington.edu/mailman/listinfo/sac-help


    • Sebastian Heimann
      Re: sacio.a for 64 bit Linux
      2009-01-15 20:26:09
      Hi!

      Try compiling the fortran code with the -m32 option.

      If you are lucky, this might work, but when I had the same problem, I
      had to drop SAC IO support from my application, because of 2 reasons:
      (1) My app uses more memory than I can address on 32 bit systems and (2)
      I would have had to recompile every other library, which my app depends
      on also with -m32. For small programs this is the way to go, but for
      large ones this can lead to much frustration.

      As far as i know, there is at least a SAC input routine in PQL2 which
      compiles on 64 bit Linuxes. I have not tried to use it, but maybe this
      would be a solution until SAC is rewritten for 64 bit.

      Cheers,
      Sebastian

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