https://community.intel.com/t5/Intel-Fortran-Compiler/Intermittent-Problems-with-Win-7-x64/m-p/901288#M80834 I see this in the ifort cmd window, when the file has been created during run of an ifort application with stdout redirected to a file. The file contents are fine, and it can be over-written without throwing an error. Makes no difference whether I open the window with "run as administrator." I've held back on passing judgment on those things which are different in Win7. Thu, 04 Feb 2010 21:18:04 GMT TimP 2010-02-04T21:18:04Z https://community.intel.com/t5/Intel-Fortran-Compiler/Intermittent-Problems-with-Win-7-x64/m-p/901285#M80831 <P>We have begun to get reports from users of our building engineering design software of intermittent aborts on systems running Win 7 x64. Fortran is returning error 28 (file closing error). The identical engineering problem (that is, input conditions) runs on Win XP and Vista without fault. The identical problem if re-submitted (on the Win 7 systems) will often, though not always, run without aborting. Repeatedly attempting to run the program will often finally run without aborting. This doesn't appear to be an I-forgot-to-initialize-a-variable-problem, or anything like that.</P> <P>We're using 11.1.054, letting the compiler perform heavy optimization.</P> <P>Has anyone seen similar behavior?</P> <P></P> <P>David</P> Thu, 04 Feb 2010 16:02:29 GMT https://community.intel.com/t5/Intel-Fortran-Compiler/Intermittent-Problems-with-Win-7-x64/m-p/901285#M80831 David_DiLaura1 2010-02-04T16:02:29Z https://community.intel.com/t5/Intel-Fortran-Compiler/Intermittent-Problems-with-Win-7-x64/m-p/901286#M80832 An error during CLOSE would be due to Windows returning an error on the CloseHandle call. I can't imagine anything in your code or the compiler generated code would affect this. Is the file in question on a local disk? Is it always the same file? Thu, 04 Feb 2010 16:29:52 GMT https://community.intel.com/t5/Intel-Fortran-Compiler/Intermittent-Problems-with-Win-7-x64/m-p/901286#M80832 Steven_L_Intel1 2010-02-04T16:29:52Z https://community.intel.com/t5/Intel-Fortran-Compiler/Intermittent-Problems-with-Win-7-x64/m-p/901287#M80833 <P>Steve,</P> <P>Agreed, I can' t think of anything that I or compiler-generated code could do that would cause this. I've tried to see if these users have Anti-Whatever software (or some other Windows security stuff) running that might be holding onto or locking the data file that won't close, but that doesn't seem to be the case.</P> <P>This is happening with different files. All are on a local disk.</P> <P></P> <P>David</P> Thu, 04 Feb 2010 18:19:35 GMT https://community.intel.com/t5/Intel-Fortran-Compiler/Intermittent-Problems-with-Win-7-x64/m-p/901287#M80833 David_DiLaura1 2010-02-04T18:19:35Z https://community.intel.com/t5/Intel-Fortran-Compiler/Intermittent-Problems-with-Win-7-x64/m-p/901288#M80834 I see this in the ifort cmd window, when the file has been created during run of an ifort application with stdout redirected to a file. The file contents are fine, and it can be over-written without throwing an error. Makes no difference whether I open the window with "run as administrator." I've held back on passing judgment on those things which are different in Win7. Thu, 04 Feb 2010 21:18:04 GMT https://community.intel.com/t5/Intel-Fortran-Compiler/Intermittent-Problems-with-Win-7-x64/m-p/901288#M80834 TimP 2010-02-04T21:18:04Z