Intel® Fortran Compiler
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MKL linking, for_main.o error message

Deleted_U_Intel
Employee
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Hi,

I'm trying to run several files using ifort and MKL, written at the beginning in f77. I have followed the procedure outlined in the user guide volume I, this is:

#! /bin/csh
ifort -c filename1.f filename2.f
ifort -c filename3.f
ifort -c filenema4.f
ifort -o filename5 filename1.o filename2.o filename3.o filename3.o

After I add to my script file:

ifort -L/MKLPATH -lmkl_ia32 -lguide -lpthread -lm

in order to link the MKL LAPACK and BLAS libraries, after running the script it shows me that it is not recognizing any of the libraries routines and besides it shows the following error message:

/opt/intel_fc_80/lib/for_main.o(.text+0x1c): In function 'main'
: Undefined reference to 'MAIN_'

How could it be possible to solve this first error message?


Thanks,
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ryofurue
Beginner
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Hi,

Although I don't know what MKL is, I can guess at least what one of the problems is.

> ifort -L/MKLPATH -lmkl_ia32 -lguide -lpthread -lm
> in order to link the MKL LAPACK and BLAS libraries, [. . .]

You need to specify your program to which you
want to link those libraries. Something like

ifort filename1.o filename2.o -L ....

The error message "Undefined reference to 'MAIN_'" usually means that you didn't tell the compiler which file contains your main program.

Hope this is of some help,
Ryo
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