Fortran Wiki
Debugging tools

Useful compiling options

Unfortunately, compiling options depend on the used compiler

g95

-g -fbounds-check -Wall -ftrace=full

Additional useful environment variables :

On LINUX/UNIX with bourne shell :

export G95_FPU_INVALID=1

export G95_FPU_ZERODIV=1

export G95_FPU_OVERFLOW=1

export G95_MEM_INIT=NAN

gfortran

-g -fbounds-check -Wall -fbacktrace -finit-real=nan

ifort

-g -check -fpe0 -warn -traceback

nag95

-g -C=all -nan

Sun F95

-g -xcheck=%all -fnonstd

lf95

-g –ap –chk

Debuggers

• gdb
• idb
• ddd
• totalview

Other tools

• valgrind