Diagnostic 15015: loop was not vectorized: unsupported data type (Fortran)
Cause:The vectorizer does not support certain data types because there is no corresponding SIMD instruction. For example, the compiler supports REAL(16) arithmetic (quad precision) through a software...
View ArticleUnderstanding Gather-Scatter instructions and the -gather-scatter-unroll...
Gather-Scatter instructions may not be the optimal choice of instructions when you are trying to achieve superior performance on the Intel® Xeon Phi™ coprocessor. However, if your code uses indirect...
View ArticleStatic linking with -mkl, -ipp or -tbb may give unresolved references
Reference Number : dpd200252274Version : Intel® C++ Compiler and Intel® Fortran Compiler versions 13.0.1, 13.1.any, 14.0.0 and 14.0.1Operating System : Linux*, OS X*Problem Description : When an...
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Program Optimization through Loop Vectorization
Download ArticleDownload Program Optimization through Loop Vectorization [PDF 617KB]OverviewIn this white paper, we will use a very simplified finite difference stencil computation of the following...
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Upgrade Your Fortran Compiler
Still using an old version of Intel® Fortran Compiler or Intel® MKL? You're probably leaving performance on the table. You have an opportunity to increase your application's performance by taking...
View Article'distributed' (-coarray) warning for Cluster Studio install
When I try to compile a Fortran coarrays program using ifort -coarray=distributed, I get the message:ifort: warning #10341: argument 'distributed' is not supported for option '-coarray'. Use requires...
View ArticleLAPACK integration
I'm working to integrate LAPACK and BLAS libraries with a Fortran project in Visual Studio, and I can't seem to get things to work. I have downloaded liblapack.lib and libblas.lib and included their...
View ArticlePassing arrays in subroutines
Hello! I am interesting, in wich cases the compiler will force to allocate any of used array from the memory Case 1: subroutine VolFracToMassFrac(VolFrac, MassFrac) real, intent(in) :: VolFrac(:)...
View ArticleNon-floating license move to another machine
Hello,is it possible to move non-floating license of Fortran Compiler from one Linux machine to another? I've searched Registration FAQ and Center, but all the answers were relevant to floating license...
View ArticleVisual Studio macros
This is perhaps going to be a red herring, but I'm rather suspicious that the recent installation of the ifort update broke user defined macros in VS 2010.My macros on two separate machines have...
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Fortran UEL on Windows
Hi everybody,I'm about writing a UEL on ABAQUS.When I'm trying to run it, I'm getting an error message. I've attached the error messages and my code to this message so you can find them easily.Would...
View Articlearch: Undefined variable message
I am running Intel Fortran Composer XE for Linux 2013 SP1 Update 2 on Red Hat Enterprise Linux 6.5. When I execute the following command: source /opt/intel/bin/compilervars.csh intel64I get the error:...
View ArticleHow to Access a C++ lib that is linked into a Fortran dll from C#
Hi,this one sounds more complicated then it is.I have a C++ lib that is linked into a Fortran dll. Now I want to access some functions of this C++ lib from a C# program. But the program doesn´t find...
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Problem with processing multidimensional arrays via nested loops
Hello, we are frustrating with a weird problem caused by the latest Intel's compiler suites (ifort/icc v14.0.2.144, Linux x86_64/EM64T). Depending on the optimization level, the following code...
View ArticleExamining the parent fields of an extended derived type in VS: New...
While reviewing the Release Notes for the recent compiler update (Intel Fortran Compiler 14, SP1, Update 2) to see what I'm missing out on, I found the following very interesting:Quote:3.3.1.4 New...
View ArticleWhen a run-time error occurs the debugger is not stopping on a Fortran code line
When there is a run time error while I am debugging my application via Visual Studio 2013, I expect that the debugger should stop on the line that is causing the problem. However, the debugger...
View ArticleUpon reinstall attempt to "open" causes crash
Out of the Dark Ages I come with Compaq Visual Studio 6.1 on a desk top using Windows XP Home Edition. Reinstalled program after installation of new hard drive, power supply, and video card. Can access...
View ArticleDependency analysis of mild insanity in Fortran
For those who want to have a bit of a giggle...A while back, as a bit of a F2003 learning exercise I started writing a little Fortran parser in Fortran that lets you do dependency analysis - "tell me...
View ArticleHigh RAM usage in IVF
Hi,I am running a large project with 50 subroutines in it. The problem is three-dimensional with lots of array allocation/deallocation.When I run the project, the iteration ends in 2 to 3 days. During...
View ArticleUsing Visual Studio Debug Execute Immediate: how to reference a variable in...
In debugging a Fortran routine which does not have direct access to a variable in a calling routine which I would like to use in Execute Immediate for debugging purposes. I want to know when a special...
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