2 Replies Latest reply on May 4, 2017 1:58 PM by Intel Corporation

    Intel Fortran (ParallelStudio XE Composer Fortran) takes 3 times more time than GNU compilers ???

    jcmendez

      Dear community. We got the license for ParallelStudio XE Composer Fortran for Windows, but it turned out that the codes we were running in GNU FORTRAN are three or even 4 times slower when we use the Intel compilers for fortran. I know that there has to be something that I am overlooking, because It has been demonstrated that Intel compilers are faster and more efficient that GNU compilers.

      I have read the manuals but I have not found anything yet. I also found something similar on the web another user reporting the same issue. He needed to use different flags when compiling. However, I am user Visual Studio and all these compiling options are difficult to find.

      I will greatly appreciate your contribution in this problem. !!!

       

      Thanks!