Unusual OpenMP behavior on Intel 2017/2018
Dear All,I have a parallelized fortran code which has unusual behavior when compiled using latest intel compiler, with OpenMP enabled. The code can be compiled, but when I run the code, it is extreme...
View ArticleCases where a temporary array is created
Hi,According to the ifort developer guide:Fortran language semantics sometimes require the compiler to make a temporary copy of an array or array slice. Situations where this can occur include:Passing...
View Articletrack memory allocation
Dear all,I would like to know if there is sum function in FORTRAN in order to track the memory allocation, something like call CPU_TIME but for the memory.This because I would like to show how the...
View Articleifort16: internal error using elemental intrinsics in dimension specifier
There seems to be a problem with the use of elemental intrinsic functions in the dimension specification of an derived type. The following code compiles with an internal error when an instance of a...
View ArticleProblem with -O3 optimization level
Hello everybody. I found a reproducible problem which appears only for level 3 optimization.I have an array, where N_lay is a defined constant integer somewhere in a module: real ::...
View ArticleFile extension overwrite at install
On future releases can you please give the option to NOT have the installer change default actions for file extensions. Every time I install an update I have to spend an hour fixing my file extension...
View Articleclarification on the -fp-speculation safe
Hi,According to the documentation:Tells the compiler to disable speculation if there is a possibility that the speculation may cause a floating-point exceptionAccording to my tests it looks as if the...
View Articlecatastrophic error related to coarray and user-defined type assignment that...
The following code use to work on Version 17.0.4.196 Build 20170411 but get catastrophic error on Version 18.0.1.163 Build 20171018module test implicit none type t_b integer, allocatable :: i(:) end...
View ArticleIntel MKL support for largest/smallest Eigenvalues
Dear all,According to Intel there is a new support in MKL for largest eigenvalues.I have upgraded to the latest Fortran compiler with MKL. I can compile the example folder for the largest eigenvalues...
View ArticleFloating Point Exception in vectorized pow function
Hi,The following code fails with a Floating Point (Inavlid) Exception in __svml_powf4_l9 () program powtest real s(1601) real power integer iz integer nz real dz character*16 out integer i power =...
View ArticleIntel software manager with 2019?
I just upgraded to the 2019 version of PS XE cluster studio on a centOS cluster, and while I see the directory for the intel software manager (ism), it doesn't look like the gui is there anymore. I...
View Articledo concurrent: Bug in code or in compiler?
Hi,I've started to substitute "forall" statements with "do concurrent" loops and found an unexpected behavior when compiling with -Ox, x>1 and openMP and autoparallelization, i.e. ifort test.f90 -O2...
View Articlemerge statement for scalars
Hi,I found the merge statement as a ternary operator quite useful even when using it outside of its original scope of array assignments. One pitfall I've realized is the fact that even the code that is...
View ArticleInstability in fortran code, when compile with new version of ifort
New Version of ifort:$ ifort -v ifort version 18.0.3Old Version:$ ifort -v ifort version 14.0.3I'm running a numerical model of tsunamis. The same computer with the same setting of the run and the old...
View Articlesvml for gfortran
hi, now i'm compiling a fortran program using svml, my compiler is gfortran and the options is ftree-vectorize -funsafe-math-optimizations -mveclibabi=svml. but it does not work well, it shows that:...
View ArticleLicense with expired support ownership transfer to a user from a different...
How can I transfer the ownership of a Intel Parallel Studio XE Cluster Edition floating license with expired support to a user from a different domain?
View ArticleIntegrating Intel Fortran Compiler with Microsoft Visual studio in mac
I have installed both Intell parallel Studio XE composer 2019 and Microsoft Visual Studio Community 2017 on my mac. I do not know how to integrate the compiler into the IDE and generate a project. I...
View Articlepath length of executable causes a hang
HiWe are running into the following behavior:An executable, say, "om" is built into a directory.I copy this executable into a directory with absolute path such as: /home/eng/abhi/test/binThen from a...
View ArticleClik here to view.
Getting complete traceback with intel compiler
I installed a software for computational physics Quantum Espresso, one, using intel compiler/libraries and another using gnu compiler/libraries. My gnu compiled code is working fine but the intel...
View ArticlePointer created with c_f_pointer gives segfault when accessed
Hello,I am having a problem with a code that is trying to use c_f_pointer. It has a C routine which gets shared memory space and returns the C pointer to Fortran which creates a Fortran pointer to the...
View Article