topic Re: bug in ifort? in Intel® Fortran Compiler

bug in ifort?

MR — Thu, 11 Jan 2007 21:32:41 GMT

Hi,
not sure this is the right place, however
I would like to report what seems to me a bug
in ifort.

The attached code works when compiled with

ifort ib.f90 -o ib

but does not when compiled with

ifort ib.f90 -r8 -o ib

My compiler:
ifort -V
Intel Fortran Compiler for Intel EM64T-based applications, Version 9.1 Build 20061101 Package ID:
Copyright (C) 1985-2006 Intel Corporation. All rights reserved.
FOR NON-COMMERCIAL USE ONLY

Thanks, Best Regards
Marco Restelli

Re: bug in ifort?

Steven_L_Intel1 — Fri, 12 Jan 2007 02:31:36 GMT

The "right place" is Intel Premier Support.

You don't say how it doesn't work. I'm going to guess that you're seeing a segv or stack overflow based on my trying the application though I don't understand why the compiler is creating a stack temp here. I'll look into that.

If that is the problem, raise your stack limit (ulimit -s) or compile with -heap-arrays.

Re: bug in ifort?

MR — Mon, 15 Jan 2007 16:44:44 GMT

Steve,
thank you.

Indeed, the error was:

./ib
A
Segmentation fault

and raising the stack limit or compiling with -heap-arrays
solves the problem.

Best Regards
Marco Restelli