Parallella error

Hi,
I am using parallaella Epiphany-3 board. While i try to load and initialize it i have got the following errors. Could you please any body help me out.
main: e_init(): Program must be invoked with superuser privilege (sudo).
main: ee_write_esys(): ESYS mmap failure.
main: e_get_platform_info(): Platform was not initialized. Use e_init().
main: e_alloc(): Platform was not initialized. Use e_init().
main: e_open(): Platform was not initialized. Use e_init().
Segmentation fault
Thank you
I am using parallaella Epiphany-3 board. While i try to load and initialize it i have got the following errors. Could you please any body help me out.
main: e_init(): Program must be invoked with superuser privilege (sudo).
main: ee_write_esys(): ESYS mmap failure.
main: e_get_platform_info(): Platform was not initialized. Use e_init().
main: e_alloc(): Platform was not initialized. Use e_init().
main: e_open(): Platform was not initialized. Use e_init().
Segmentation fault
Thank you