title: error LNK2019: unresolved external symbol MPI_INIT referenced in function
body: <p>I am trying to compile a software package called FDMNES for X-ray Absorption Spectra Modelling with MPI for the first time in Windows, using Visual Studio 2010 and a trial version of the Intel Composer XE 2011 SP1, ifort visual fortran compiler in conjunction with Intel Parrelel Studio 2011.  I have managed to get all the object files compiled using the 64-bit version of ifort, but when it comes dime to link the files I recieve the followed error:</p>
  
  <pre><code>1&gt;------ Build started: Project: Console2, Configuration: Release x64 ------
  1&gt;Linking...
  1&gt;main.obj : error LNK2019: unresolved external symbol MPI_INIT referenced in function MAIN__
  1&gt;main.obj : error LNK2019: unresolved external symbol MPI_COMM_SIZE referenced in function MAIN__
  1&gt;main.obj : error LNK2019: unresolved external symbol MPI_COMM_RANK referenced in function MAIN__
  1&gt;general.obj : error LNK2019: unresolved external symbol MPI_BCAST referenced in function RESEAU
  1&gt;potential.obj : error LNK2001: unresolved external symbol MPI_BCAST
  1&gt;main.obj : error LNK2001: unresolved external symbol MPI_BCAST
  ......etc
  1&gt;x64\Release\Console2.exe : fatal error LNK1120: 7 unresolved externals
  1&gt;
  1&gt;Build log written to  "file://C:\Users\Arturo\Documents\Visual Studio 2010\Projects\Console2\Console2\x64\Release\BuildLog.htm"
  1&gt;Console2 - 18 error(s), 0 warning(s)
  ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
  </code></pre>
  
  <p>I've tried linking to the  64bit Intel MPI libraries, as well as MPICH2 64bit libraries by adding the command /L"C:\PathtoMPILibrary\" but to no avail.  I have also tried using this makefile, running with gmake from a mingw32 package:</p>
  
  <pre><code>#Make file for the fdmnes package
  objects = main.obj clemf0.obj coabs.obj convolution.obj dirac.obj fdm.obj fprime.obj general.obj hubbard.obj lecture.obj mat.obj metric.obj minim.obj potential.obj scf.obj selec.obj spgroup.obj sphere.obj sub_util.obj tab_data.obj tddft.obj tensor.obj
  compiler = mpif90 -O3 -c
  fdmnes_mpi : $(objects)
      mpif90 -o fdmnes_mpi $(objects)
  main.obj : main.f
      $(compiler) main.f 
  clemf0.obj : clemf0.f
      $(compiler) clemf0.f
  .....etc
  </code></pre>
  
  <p>But when I run gmake, I get the following error:</p>
  
  <pre><code>Intel(R) Visual Fortran Intel(R) 64 Compiler XE for applications running on Intel(R) 64,
  Version 12.1.0.233 Build 20110811
  Copyright (C) 1985-2011 Intel Corporation. All rights reserved.
  
  ifort: error #10037: could not find 'link'
  </code></pre>
  
  <p>I've exhausted forums, and I need this to be compiled with MPI under 64bit windows. Any help would be very much appreciated! Thanks.</p>