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Massive performance issue with code on Haswell-EP (E5-1650v3)
Dear all, it's maybe off topic, but I know no other place to address this issue to. And it is Fortran related. I got a new workstation (E5-1650v3, 64GB ram, SSD, Win7 64 bits) from a big global player...
View ArticleQuestion: Reading a large column (1D-array) and writing slices of this array...
I am trying to read a large single column (which I am trying to read in as a 1-D array), and then to write slices of this array as rows until the end of the data. Please suggest me the best way to...
View ArticleOptimization flags documentation
Hi,Where can I get the documentation of the optimization flags and explanation for ifort and mpiifor 15.0.1.Thx.
View Articleparameter in dlls
Hi to all, When I linking my program with a compiled dll which is also written in Fortran and contains lots of modules with some integer and real parameters defind within, I recognized that a write...
View ArticleConvenience libraries, ipo, and unresolved references
I am attempting to recompile code that was written using GNU tools, including autotools. In the makefiles, I make a lot of use of so-called convenience libraries, or local static libraries that are...
View ArticleIncorrect result with COUNT in initialization expression
I found that Intel Fortran 15 gives incorrect results with the COUNT intrinsic in initialization expressions. Consider the following program:program count_bug implicit none integer, parameter ::...
View Articlecompilervars.sh destabilizes my linux environment
I have tried to install Intel Composer XE 2015.0.090 in both OpenSuse 13.1 and Ubuntu 14.04 LTS environments. In both cases I have followed the instructions here...
View ArticleIntel Ifort 15 + OpenMPI 1.8.4 + OpenMP= instantaneous segfault
Hi,using Intel ifort 15, I compiled OpenMPI 1.8.4 using the following configure line:../configure --prefix=<path to installdir> --with-openib --with-sge CC=icc FC=ifort CXX=icpcUnfortunately,...
View ArticleError: Stack around the variable 'x' was corrupted.
Dear Experts,Thank you for your time to see this post. First of all, I am not a software professional, but have been using Fortran with IMSL for my data analysis for years. I appreciate your...
View ArticleAssociate and intent(in) and deallocate and pointer components and a spurious...
I get a complaint about an INTENT(IN) violation with the attached. I would like to complain about the complaint. PROGRAM p IMPLICIT NONE TYPE :: reference TYPE(ta), POINTER :: ta_ptr(:) END TYPE...
View Articlefatal error LNK1201: error writing to program database ...konkar.pdb...
I am still getting the error message 'fatal error LNK1201: error writing to program database 'D:\Konkar\Konkar___Win32_Debug\Konkar.pdb'; check for insufficient disk space, invalid path, or...
View ArticleVisual Studio 2013 Integration
Hi,I've a minor problem with Intel Fortran Composer integration and Visual Studio 2013.As far as I can see it is not possible to access the text properties from Fortan document using Visual Studio...
View ArticleLOC of pointer argument
Hi,I have a problem taking the LOC of a pointer argument within a subroutine. It works fine on Mac and Linux with older versions of ifort (12). I am trying now on Windows with ifort 15 and it fails...
View ArticleNew Fortran triggers fatal linker errors (?)
When I installed the most recent Fortran, I get this:1>LINK : fatal error LNK1104: cannot open file 'libmmdd.lib'This was with a program that always linked before.Do I have to go back one step? I am...
View Article64bit slower than 32bit
HiI want to switch my Fortran-program from a 32-bit-executable to a 64-bit-executable. Surprisinglythe 64-bit-executable is about 20% slower than the 32 bit executable.ifort /fpp /O2 /Qoffload- /Qip...
View ArticlePoint of confusion: LOC() page in IFort 15 manual
The documentation for the non-standard LOC() function in the IFort 15 manual at https://software.intel.com/en-us/compiler_15.0_ug_f contains example code containing Cray pointers, and readers who may...
View Article-qopt-matmul with -mkl=sequential
For ifort 15.0.1.133, it appears that when -qopt-matmul is specified, the multi-threaded MKL will be used regardless if -mkl=sequential is also specified.Consider the following MATMUL benchmark code,...
View ArticleVS2013 Power Tools: Margin Code Structure
I've been searching to find if there's a way to view the code structure in the margin for Intel Fortran in the same way C++ displays it.For reference: C++ displays an arc that goes from the start to...
View ArticleIMSL LIBRARIES 6.0 openmp
Hi,I'm trying to parallelize, with openmp style, my code (invel fortran 11.0 on visual studio 2005): # of loops (omp do) in which I use DLCONF (IMSL math libraries 6.0)The fuction to be minimized in...
View ArticleRun-time error when opening/reading an ASCII file
I am compiling a large program, which depends on several external Fortran and C libraries, on a Mac OS X 10.9.5 with Intel Fortran Compiler 15.0.1. I get a run-time error when opening an external...
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