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Old   May 23, 2008, 06:37
Default Parall UDF
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Hello everybody,

I am having problem running a simple UDF in parallel. I posted the UDF here before:

#include "udf.h"

DEFINE_PROPERTY(cell_viscosity,c,t) {

real mu_lam;

Domain *domain;

domain = Get_Domain(3);

if (t == Lookup_Thread(domain,4)){

mu_lam = 10.; }

if (t == Lookup_Thread(domain,3)){

mu_lam = 20.; }

if (t == Lookup_Thread(domain,2)){

mu_lam = 30.; }

return mu_lam;


In single mode it works perfectly, but in parallel the viscosity doesn't change. I read the "parallel UDF usage" in the UDF manual but I still don't know what I have to change.

I hope anybody can help me. Thanks in advance

Greetings Dennis

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