Intel® Fortran Compiler 8.x, 9.x and 10.0 for Linux*
The Intel® Debugger (idb) is distributed along with the Intel® Compilers for Linux*. To debug a program with idb, compile it with -g to generate symbolic debug info. Please refer to the idb release notes and manual located under the <install-dir. /docs subdirectory under your Intel® Fortran Compiler for Linux installation. Other options to debug Fortran programs can be found at the gdb*† and Totalview*† websites.
Intel® Fortran Compiler for Linux* - How to debug a fortran program