norm2 for complex vectors
dear all,I usually use NORM2 to compute the error in a while cycle.However, I have complex vector now and NORM2 does not work.Is there any norm2 function for complex vectors?Thanks
View ArticleClik here to view.
catastrophic error: Internal compiler error
The attached subroutine (old Fortran) generates the following error:crash2.f: catastrophic error: **Internal compiler error: segmentation violation signal raised** Please report this error along with...
View Articlelinux compiler
Hi, Question One: I just purchased a student version of the intel fortran compiler for Linux. Knowing that there is three different versions of the compilers, "composer", "profession", "cluster", on...
View Articlememory usage - print it out
Dear all,I find very useful to print out the CPU time in a Fortran program.I would like to know if is possible to print out also the RAM or memory usage.Thanks a lot
View ArticleRunning program freezes after a while
Hi,I compiled my program with ifort (with ifort -parallel -O3). The program runs for a while, but the computations finally stop and the program is in the state "S" (interruptible sleep) according to...
View Articlerelative ordering of LOGICAL and LOGICAL*1 in common blocks
As I've started several posts: "I've got this legacy application . . ."Among its many "remarkable" features is the use of LOGICAL*1 to store characters on occasion. I will change those to CHARACTER...
View ArticleBehavior of FPUTC() with newline
Howdy. One more trip into Legacyland. I have reduced my issue to a small test case that works with "ye olde" g77 compiler, but does not work with Intel Fortran, even if I "USE IFPORT" to invoke the...
View ArticleStructure versus TYPE
I stumbled upon this a couple of weeks ago...I have a lot of reused code (via INCLUDE) which uses the STRUCTURE and then RECORD in the routines. I am not aware that RECORD can make use of the INTENT()...
View ArticleUnititialized and SAVE
Stumbled upon an odd situation last week.It is likely that the complier setting on the RedHat5 were using "-save" and the RedHat6 I was porting to was not.The code looks something like this: PROGRAM...
View Articleeliminating g77 intrinsic function
In the applications that I have ported from g77 to Intel Fortran, many of the remaining run-time bugs are due to use of g77 intrinsic functions. I am trying to come up with a way to track them down...
View ArticleProblems Installing Intel® Parallel Studio XE Professional Edition for...
I'm trying to install Intel(R) Parallel Studio XE 2015 Update 1 for Linux. I have 64-bit Red Hat Enterprise Linux Release 6.6. I have more than a TB of disk space free. I can install software as...
View ArticleA feature in Fortran can make a computer down
What I mean is that I can use the feature of allocate to stop the system running.For example, my machine has 62G memory. Then I define an array allocatable in fortran. If i allocate the array for 62G,...
View ArticleClik here to view.
Is any difference for type real and complex in memory?
I write a program to allocate memory, like ffree 10. Then the ffree will allocate 10G memory.This is my codeprogram ffree character :: buf * 255 integer :: size, info integer(8) :: num, i...
View ArticleOpenmp allocatable type private bug
Hi all,I think there is a bug , when using an allocatable type in a private list, like the small example below. For this program , I get "allocatable array is already allocated" , without openmp it...
View ArticleOpenmp task bug
Hi all ,I got a weird behavior with the following code, looks like the variables are not correctly shared. No problem with gfortran, I'm using 15.1. module pp type qq double...
View Articlememmove vectorization opt-report
Hi all,I am looking at the vectorization report of this instruction a(ipos+1:m+1)=a(ipos:m) where a is a character(20) array. The optimization report look like that :LOOP BEGIN at remark #15382:...
View Articlehow I can use fgsl by intel compiler
I’m OS X user. I installed fgsl by homebrew. I succeed to compile fgsl example file by gnu compiler. but, fail to do by intel compiler. error message: error #7013: This module file was not generated by...
View ArticleNo progress on coarray access until synchronization
With ifort 15.0.0 for Linux, I've encountered an issue where images >= 2 are unable to access (read) a coarray with cosubscript 1 until image 1 encounters a subsequent image control statement. Since...
View ArticleQSORT Segmentation Fault
The following code is generating a segmentation fault during the call to QSORT. It appears QSORT is calling the routine COMPARE without assigning a value to arg1. I tried adding USE IFPORT to the main...
View Articleintel® fortran composer xe for linux* for non-commercial use
Hi all,Is there any intel® fortran composer xe for linux* for non-commercial use available for registration and download now? I am a graduate student and have recently installed my new computer with...
View Article