[mina shakeri]

hi
how can i write a udf for pitching motion with free oscillations?
my udf is:
#include "udf.h"
FILE *fout;
DIFINE_ZONE_MOTION(fmotion,omega,axis,origin,veloc ity,time,dtime)
{
Domain *d;
Thread *t;
face_t f;
cell_t c;
real Drag;
real Lift;
real M;
real FC[2];
real A[2];

d = Get_Domain(1);
t = Lookup_Thread(d, 6);
begin_f_loop(f, t)
{
F_CENTROID(FC,f,t);
F_AREA(A,f,t);
Drag += F_P(f,t) * A[0];
Lift += F_P(f,t) * A[1];
M+=Drag*FC[0]+Lift*FC[1];
fprintf(fout,"D = %f L = %f", Drag, Lift);
}
end_f_loop(f,t)
}

but i have an error " The UDF library you are trying to load (libudf) is not compiled for parallel, 2ddp use on the current platform (win64).
The operation completed successfully."
please help me.
thanks