-check , -warn and -diag-enable=all
All three of those compiler flags seem to do similar things. Can someone explain the differences, and whether it would be a good idea to use them all together whenever I make changes, and review my...
View ArticleRandom_number
HiI use ifort compiler. in my code i need random integer number between 1<= i <=64.i used random_number(x) and it is between 0<x<1. then for my purpose i use this transformationi =...
View Articlelibmpifort.so incompatible error during compile
Hi,I hit link issue when compiling the program, thank you for the helpld: skipping incompatible /opt/intel/compilers_and_libraries_2017.4.196/linux/mpi/mic/lib/libmpifort.so when searching for...
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Error extending extended types
I am trying to use the object orientated features of Fortran (Essentially, what I want to be able to do is to get an array of arraies, where each element of the outer array has a different size), and I...
View ArticleShared object run time error when built with OpenMP
I have a Fortran shared object (*.so) that has a run time error when a routine in the shared object is called from the GUI; the shared object is built using the -qopenmp option. Without OpenMP...
View ArticleI/O Bug? (32 vs 64-bit Compile)
I'm curious if others would consider the following to be a bug.Given the following code:program test845887 character(12) :: input real(8) :: value input = ' 8.45887E-01' read(input,"(d12.5)") value...
View ArticleSegmentation fault when running code compiled with O2 option. Code using...
We are developing a solver based on several structured grids which are connected.For this reason some information is needed only in grid boundaries (face edges vertex).To reduce the memory consumed we...
View ArticleWebinar on Accelerate Application Performance with OpenMP* and SIMD Parallelism
We welcome you all for the webinar tomorrow morning at 9am PST where Martyn Corden is going to show you how to tune a SAD kernel using Intel Software Tools. He will walk thru the steps on how to look...
View ArticleFaster compilation with Intel® Compiler 18.0 Beta
18.0 beta includes several improvements which may result in compile-time reduction for part of your application. In several cases, such a reduction may be significant, and cut compile time by more than...
View ArticleExample with kmp_malloc in Fortran
I am running the my fortran code across two NUMA nodes equipped by Xeon(R) CPU E5-2690v4 processors in Linux under SLURM. The part which uses MKL functions scales very good but my OpenMP code does not....
View ArticleLinking C++ with Fortran Co-arrays
Has anyone tried mixing C++ with Fortran co-arrays. I am trying to do so at the moment however it seems the "this_image()" and "num_images()" routines return a 0 for all cores, The main program is in...
View ArticleKMP_AFFINITY
Hi,Does anyone know I can internally change KMP_AFFINITY in the sub-process invoked from my program? My experiment shows it does not work with intel compiler but however it is under gcc compiler.here...
View ArticleWarning when -qopenmp is used
Dear,I got the following warning when using ifort on a Linux computer, and I am wondering what it means, and how I can avoid it. I googled it, but I am not sure that I fully understood the problem.The...
View Articleifort command not found
I am working on ubuntu 14.04. I have ifort installed and works in bash. i have set environment. when i swtich to csh/ tcsh, i get ifort not installed. though i am not an expert, but i now its related...
View ArticleEquivalence
Hello,I`m trying replace the equivalence in my code. Example: SUBROUTINE SPA88 (...
View Articleerror #7068: The characteristics of a dummy argument
I have a CFS code which was developed at NCEP. Code was able to compile with intel 13, when I was trying to compile the same code with Intel 17.0, I am getting error #7068: The characteristics of a...
View ArticleCompiler bug in version 17
I think there may be an obscure bug in Intel Fortran Version 17 which breaks our electronic structure code (http://elk.sourceforge.net/).It's a bit tricky to reproduce but I've simplified it as far as...
View Articleundefined reference to `_intel_fast_memmove'
I have installed the fortran_studio_xe_2013_update4_intel64 and Roguewave_IMSL library. after installing it I ran the setup files before compiling the fortran code.source /opt/intel/bin/compilervars.sh...
View Article-coarray=shared on KNL, hangs if num_images>=16
Hi,I have a coarray program which runs fine on a small 4-core desktop, also runs oversubscribed well beyond the number of cores; this is using parallel_studio_xe_2017.0.035. On a KNL single node (64...
View ArticleError when Optimization used in code
Hi,I have a code which uses the PETSc library. When optimization is turned off, the code runs fine. However, when I turn on optimization, I got:[0]PETSC ERROR:...
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