[Nek5000-users] SFD error message from p66

[nek5000-users at lists.mcs.anl.gov]

Dear Nek's,

I'm trying to program a Selective Frequency Damping following the 
article of Akervik et. al (Physics of Fluids, 2006) and some Nek5000 
posts.

I'm able to compile the code, however, when I try to run my simulation, 
I find the following error message:

         0  0.0000E+00 Write checkpoint:

         0  0.0000E+00 OPEN:
At line 335 of file User/nek5_svn/trunk/nek/prepost.f (unit = 24, file = 
'')
Fortran runtime error: File '' does not exist

It seems to be something related to param 66. I've tried with p66=6, 0, 
1, -1, but I always get the same error.

Do you know what happens?

Thanks
SL