Inefficient code for simple string comparison
The following reproducer exposes an inefficiency with string comparisons. The compiler generates a call to for_cpstr() that consumes substantial compute time for a case I have. Tried with versions 11.1...
View ArticleIfort producing libraries with TEXTREL
Hi, I have a problem similar to the one reported here: http://software.intel.com/en-us/forums/topic/36408 I am using IFORT 13.1.2 with GCC 4.2.1 to compile my project but two of the .so files get...
View ArticleUndefined references
I am having problem linking ansyscust.e145. The main problem is undefined refreences, such as:user03.o: In function `user03_':user03.F:(.text+0x3): undefined reference to...
View Articlecoarray distributed memory library
I've successfully used a coarray library with shared memory and ifort 12. Now I've got licence for distributed memory and ifort 14, but my coarray library doesn't work anymore.I can compile and run...
View Articleifort 13.0, 14.0 coarray extremly slow read/write between nodes
This is my test code: $ cat ca_check.f90 program z implicit none integer :: x(10)[*], img, nimgs, i real :: time1, time2 img = this_image() nimgs = num_images() x = img if (img .eq. 1) then do...
View Articleundefined reference to `_intel_fast_memmove'
Hi,When I'm trying to compile my code using the intel fortran compiler I receive this...
View Articlesyntax error: logical expression in sourced allocation
Hello,today ifort 14.0.1 got me confused with the followign syntax error where I think I wrote legal code: program p implicit none logical, allocatable :: flag ! allocation and assignment...
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bug report- write statement have no idea of some bounds of multi-dim...
hi, I'm using the ifort 14.0.0 20130728I found a possible bug of this version. when some allocatable variable has a non-1 lower bound, for some elements(not all) of this allocated variable, the write()...
View Articleifort 14.0 not vectorizing IVDEP loop
I have the following loop:!DIR$ IVDEP DO 20 J = JBGN, JEND X(IROW) = X(IROW) - L(J)*X(JL(J)) 20 CONTINUEWhen I compile it with ifort 13.1 the vec report shows the loop is vectorized, however when I use...
View ArticleCompiler bug ? Passing explicit/assumed-shape dummy arrays
Hello,I just get confused about ifort behavior.Here is a minimal sample program causing me trouble : program bug implicit none integer,parameter :: nb=1 integer,dimension(5,nb) :: array integer :: n...
View Articleifort crash segmentation fault using DGETRF Lapack
Hello,I am currently developping a code that requires the inversion of a matrix. I use the Lapack function DGETRF to compute LU decomposition of the matrix.I am experiencing a segmentation fault as the...
View ArticleNo runtime error on double allocation (polymorphic)
Hello,here's an example demosntrating that double allocation of polymorphic variables does not cause a runtime error condition, as expected. program p type derived_type integer,...
View ArticleTrouble with polymorphic entities
Hello,I am experiencing several error messages about polymorphic entities with ifort 14.0.1 (Linux) which I find strange.However, I am relatively new to OO Fortran features, so I am not sure if this is...
View ArticleInitialisation of allocated arrays
Hi,I have a f90 code containing a loop. I need to set a relatively large array to zero at the start of the loop. I found that this takes a surprisingly long time (~3 seconds per call and I have ~100000...
View ArticleComposer XE 2013 SP1 Update 1 - Now Supports Mavericks and Xcode 5.0
5 October 2013 - Intel released Intel(R) Composer XE 2013 SP1 for OS* X, Update 1 today, 25 October 2013. This compiler and all subsequent compilers will support Xcode 5 on Mavericks and Mountain...
View ArticleError: additional relocation overflows omitted from the output
Hello, I am currently developing a Fortran77 code for computational fluid dynamics (CFD).Environment: SUSE Linux Enterprise Server 10 SP2 (x86_64), Intel ifort, Fortran77 I do have to use a huge array...
View ArticleDifference between "type" and "data type"?
Dear Intel support,the following program raises an error, as I expect:$ cat test.f90 program test real(kind=8) :: i i = 1.0 call mysub(i) contains subroutine mysub(j) real(kind=4), intent(in) :: j...
View ArticleCorrect include?
I am using composer_xe_2013_sp1.0.080 on Ubuntu 12.04 LTS. When introducing use ifqwin in a source file, I get errot #7002: Error in opening the compiled modue file. Check INCLUDE paths. echo $CPATH...
View ArticleVariables and Functions in floating point calculations
I have been working on optimizing some code and I my issue is a FORTRAN function of a constant in a loop. My issue is that my answers are different when I pull the FUNCTION out of the loop and assign...
View ArticleRuntime determination of procedure pointer name.
I confess I did not study at length the subject, but it seems that what I want here is not possible.I wrote a module with a set of procedures all with the same abstract interface. The procedure is to...
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