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

ICE with -standard-semantics

Hi all,
   I see and ICE when compiling the following code with -standard-semantics :

$  ifort -standard-semantics -c ice.f90  
catastrophic error: **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.
compilation aborted for ice.f90 (code 1)

Recursive function and pass by VALUE optimizations

Hi all,

I have some questions about the recursive functions performance in the compiler.

The code is below, the performance table obtains with the compiler 14.  First column is normal, second column is pass by value.

Ifort is slower than gfortran(4.8.2), and is passing by reference creating more copies in the recursive case ?

I don't know if performance is better with old compiler version.


ifort         3.51  1.151

gfortran  2.027  0.452

Optimization causes array index out of bounds

I'm still testing the ffte benchmark. Running it on the host with -O3 -xAVX -openmp works flawlessly and the performance looks great. Now I wanted to use that code on the Intel Xeon Phi. So I replaced the -xAVX option with -mmic in order to create a native binary. With ulimit and KMP_STACKSIZE I increased the stack to avoid a stack overflow.

ifort 14.0.2 bug prevents scipy tests to pass

I've tried to use Intel MKL with numpy 1.8.0 and scipy 0.13.3 python packages.

When I use -O2 option for ifort scipy tests in scipy.odr subpackage fails everytime.

Using -O1 instead of -O2 results in passing the tests.

Here is detailed description of bug:

MPICH2-1.5 Install problem - help!

I am trying to install mpich2-1.5 on my linux system (RHEL 6.5) but I can't

The configure failed showing

configure error: ***** Incompatible Fortran and C Object File Types! *****

F77 object file type produced by 'ifort' is ::ELF 32-bit LSB relocatable, Intel 80386. version 1 (GNU/Linux). not stripped.

C object file type produced by 'gcc -02' is ::ELF 64-bit LSB relocatable. x86-64. version 1 (SYSV). not striped.


I am using 64 bit system and installed intel parallel studio 2013 (evaluation version)


"Traveling" forrtl: severe(408): fort (2): error

I am using Intel Fortran Compiler

I am compiling with the following flags " -fpp -O0 -check all -traceback -g -vec-report0 -debug all  -heap-arrays -ftrapuv".

I keep on getting errors of the type: "forrtl: severe (408): fort: (2): Subscript #2 of the array XXXXX has value 1 which is greater than the upper bound of 0" where the array XXXX that seems to be the culprit of the error changes as I try to fix the problem.

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