numeric stability
Hello, I'm working in a quite complex algorithm. I try to improve the performance using iFort. With gfortran I obtain same numeric results if I use -O0, -O1, -O2 or O3 optimization flags. With a old...
View ArticleInternal compiler error when wrapping intrinsics with "use" renaming
There is a weird error if you wrap an intrinsic function, then rename the wrapper in a use statement to have the same name as the original intrinsic. This is usually something that you would only do if...
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2015 Initial Release vs 2013 SP1 Update 4 Build Dates
Why is the build date for Fortran 2013 SP1 Update 4 (August 5) more recent than 2015 Initial Release (July 23)? I would assume that the 2015 release would be the most current (see attached PDF)...
View ArticleEXECUTE_COMMAND_LINE problem
Hi,With the new version of the compiler, the EXECUTE_COMMAND_LINE intrinsic fails under circumstances the SYSTEM() function didn't.In a particular program, many of the commands I execute have...
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ICE with O2
Hi,the attached example triggers an Internal Compiler Error with ifort 15.0.0. on openSUSE 13.1. It contains the following files:ice/hskinds.f90ice/hsorbit.f90ice/hsdata.f90MakefileTo compile, runmake...
View ArticleStrange behavior of a type-bound procedure
Hello all,In the following code a derived data type is defined holding by a integer allocatable array and two type-bound procedures. One initializes the array and the other adds an element(ind) to the...
View ArticleIntel Debugger Java Error on RHEL 6.5
I am running Red Hat Enterprise Linux 6.5 and am seeing the following java SIGABRT error when running Intel Debugger for applications running on Intel 64 Version 13.0 (2013 SP1 Update 4). The command...
View ArticleRHEL 6.5: 'import site' failed; use -v for traceback
Any idea why I am seeing the following error message when I execute the following command: source /opt/intel/composer_xe_2013_sp1/bin/compilervars.csh intel64'import site' failed; use -v for...
View ArticleXcode config scheme for composer 2015
I'm successfully using composer 2015 Fortran via command line but I'm attempting to integrate into Xcode 5 (Xcode 6.x is not working yet)I'm using one of the demo programs to test compilation and...
View ArticlePractilce help with OPTIONAL
I have a subroutine that call another subroutine. The calling subroutine has this in it: ... REAL(KIND=8), DIMENSION(7) :: CP = RESHAPE((/1.0D0/), SHAPE (/7/), PAD(/0.0D0/) ) REAL(KIND=8), DIMENSION(7)...
View ArticleSegfault due to strange interaction of intrinsic and defined assignment
Here is a case where something very strange seems to be happening with ifort 14 and 15, leading to a run-time segfault. First, the code:module foo_types implicit none type :: foo_alloc integer,...
View ArticleBug in -assume realloc_lhs
Hi,With the latest compiler, and the code below, I get garbage output.program test_lhs_allocate use iso_fortran_env implicit none type :: table character(63) :: name = '' character(63), allocatable ::...
View ArticleICE with polymorphic defined assignment and -assume-realloc
Hi again,For the code below, I get an ICE, caused the interface assignment(=) block.module mod1 type, public :: t1 character(:), allocatable :: chars end type interface assignment(=) module procedure...
View ArticleVery slow compilation
Hello, Recently, the compilation time of our programs has slow down dramatically. For a very simple source :@drhpcmss % time ifort -c -fpp hsbib/normR.f90real 0m12.450s user 0m0.048s sys...
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I got some error to execute ifort
Hi i am in very beginning of fortran language and i got some error to execute ifort in terminalfirst, i typed " source /opt/intel/composer_xe_2015/bin/compilervars.sh intel64"and it was working.but...
View ArticleProblem with nested ASSOCIATE constructs
Hi, I get an error with the attached code which I think is due to a problem within the compiler. The error appears when using two nested associate constructs:$ ifort -c test.f90 test.f90(20): error...
View ArticleFunction returning POINTER as actual argument?
I am having problems with ifort (15.0.0.077) when a function returning a pointer is an actual argument to a function with a pointer dummy argument. If I use a temporary pointer variable, the function...
View ArticleOn default initialization
Hi,Even though, in light of recent threads, the code is not useful, I was wondering: why, in the following code, the compiler reports missing initialization, when the field is already...
View ArticleHow to specify a directory where to store the object files ?
Is there an option to specify a directory where the compiler should store the object files ?I'm looking to something like "-module" but acting on object files.Thanks
View ArticleHow are temp arrays declared in subroutines managed?
I'm just learning Fortran but have not been able to find the definitive answer to the question of how arrays declared in subroutines are managedFor example see below (this is a Fortran question not...
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