Coarray Fortran 32-bit doesn't work on 64-bit Microsoft Windows*

By Igor Vorobtsov,

Published:08/31/2017   Last Updated:08/31/2017

Version : Intel® Visual Fortran Compiler 17.0, 18.0

Operating System : Microsoft Windows* 10 64-bit, Microsoft Windows Server 2012 R2 64-bit

Problem Description : Coarray Fortran 32-bit doesn't work on Microsoft Windows 10 or Microsoft Windows Server 2012 R2 (only on 64-bit OS)  due to required utilities “mpiexec.exe” and “smpd.exe” not working properly.

Resolution Status :

It is a compatibility issue. You need to change the compatibility properties in order to run “mpiexec.exe” and “smpd.exe” correctly. Following workaround should resolve the problem:

1. Go to folder where your “mpiexec.exe” and “smpd.exe” files are located.
2. For both files follow these steps:

  • Right click > Properties > Compatibility Tab
  • Make sure the “Run this program in compatibility mode for:” box is checked and Windows Vista (Service Pack 2) is chosen.
  • Click Apply and close the Properties window.

Coarray Fortran 32-bit application should work fine if all steps followed carefully.

Product and Performance Information


Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804