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C_DUDX segmentation fault

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Old   January 16, 2015, 13:39
Default C_DUDX segmentation fault
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Dear colleagues!
Here is a UDF which use:

#include "udf.h"
#include "mem.h"

DEFINE_ON_DEMAND(flux)
{
Domain *domain = Get_Domain(1);
int count, massflow_zone;
real At, A[ ND_ND ], cx0[ND_ND];
cell_t c0, c1;
Thread *t, *ct0, *ct1;
face_t f;

massflow_zone = 1; // interior BC
t = Lookup_Thread(domain, massflow_zone);
begin_f_loop(f, t)
{
F_AREA(A, f, t);
At = NV_MAG(A);
c0 = F_C0(f, t);
ct0 = F_C0_THREAD(f, t);
C_CENTROID(cx0, c0, ct0);
Message("C_U(c0, t0): %f \n", C_W(c0, ct0));
Message("C_DUDX(c0, t0): %f \n", C_DUDX(c0, ct0));

}
end_f_loop(f, t);
}

After several iteration I executed this UDF and I got first message and on the second one I got segmentation fault. Any idea why?

Best regards!
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Old   November 20, 2015, 19:55
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Hi, Could you solve the problem? I'd really appreciate if you could share
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