I use dclock (with "use ifport") to time my application. It works perfect for a short run, i.e. 300 second. But for a long run, i.e. 1 or 2 days, it gives a negative run time. Could anyone give an explanation for this?
CPU: Intel Core 2 Duo 2.4 GHz
OS: Mac OS X 10.5.8
Linux: Debian 5.0 x86_64
Compiler: Intel Fortran Compiler 11.1 & Intel C++ Compiler 11.1 (with Intel MKL included)