Intel® Fortran Compiler for Linux* and Mac OS X*

How to download IFORT using FTP under SSH?

I am trying to download the Fortran Compiler for Linux using FTP. I am
using a secure conection (SSH) to one of our remote Linux machines and
from there I would like to download the zip/tar file. The procedure
should be also the same from Windows.

In your web page the FTP address of the file is:

Hence, I try:

Floating Point Calculation output changes from ifort 9.0 to 9.1.039

I am compiling using

ifort -O3 -save -r8 -mp -fp-port -std95 -CB -traceback -fpstkchk

This is a very complex calculation and I cannot include the code (over 50 files). When I change between ifort 9.0.021 to 9.1.039, I get differences in the 7th or 8th significant digit. I either need to know what change would have caused this, or a flag to enable to get the original output.


forrtl: error (78): process killed (SIGTERM)


I get the following runtime error on our Beowulf cluster with an parallel MPI Code compiled with ifort:

forrtl: error (78): process killed (SIGTERM)
PSIlogger: Child with rank 0 exited with status 1.

PSIlogger: done

How can I find out more about this error, where and why it
occurs? Debugging works not for the parallel code for some reason.

Thanks in advance,


Intel fortran 50% slower than g77?

I'm new to intel fortran and after installing ifort (9.1.029) on my brand new imac 24" (2.33GHz) I wanted to see how much faster it is than gnu fortran (g77) on the following trivial program:

do i=1,10**9



end do

print*, s


To my horror I found the following results:

$ g77 1.f

$ time a.out


real 1m3.011s

user 1m2.828s

sys 0m0.055s

ifc kdevelop


I am trying to setup ifc to work with kdevelop.

So far I have managed to create the default hello world and compile and run it with ifort.

I have full debugging working for other Linux projects like gimp using gdb-6.5

I have spent several days searching for info on using either idb or gdb but have found precious little info on this subject.

Can you point me to some help on doing this?

It also seems this I do not have idb installed in /opt/intel , is this not supplied with ifc Linux or have I missed a step?

fortcom: Severe: **Internal compiler error: internal abort**

Hi all,
I uncountered an internal compile error using ifort v9.1.036 (but the same error shows up also with v9.0.031) . The code compiles fine with g95 or pgf90.

The error:

ifort -O3 -c ./kiva3d/timstp.f


fortcom: Severe: **Internal compiler error: internal abort** Please report this error along with the circumstances in which it occurred in a Software Problem Report. Note: File and line given may not be explicit cause of this error.
in file ./kiva3d/timstp.f, line 97, column 27

poor parallel speedup of sample program: jacobi.f


I am trying to run the "jacobi.f" sample program provided on the website:

have not been able to achieve any kind of parallel speedup when I
compile and run this program with intel fortran compiler for linux.

Has anyone had sucess with this program using intel fortran linux compiler ? Any explicit ode solver ?
What is necessary to achieve parallel speedup with the openmp "jacobi.f" sample program ?

Subscribe to Intel® Fortran Compiler for Linux* and Mac OS X*