Learning Forum

[MohammadUT]

Hello, I have two questions  and I would be very thankful if you take time and answer them.

1-Does host is executed when reading a DEFINE_PROFILE UDF? because these same lines on this type of udf doesn't show the same result as an ONDEMAND UDF:

	#if RP_HOST

	Message("n I am in the host processn");

	#endif /* RP_HOST */

	#if RP_NODE

	Message("I am in the node process with ID %dn",myid);

	/* myid is a global variable which is set to the multiport ID for

	each node */

	#endif /* RP_NODE */ 

result of DEFINE_PROFILE:

I am in the node process with ID 0

I am in the node process with ID 1

I am in the node process with ID 2

I am in the node process with ID 3

I am in the node process with ID 4

result of DEFINE_ON_DEMAND:

 I am in the host process

I am in the node process with ID 0

I am in the node process with ID 1

I am in the node process with ID 2

I am in the node process with ID 3

I am in the node process with ID 4

---

2-Do we need Host to set an RP-Variable in udf or it is node's job? If we need host for that considering question 1, what should I do to get this UDF that works fine in parallel with zero nodes, does the same with more nodes?

DEFINE_PROFILE(udftransient,t,i)

{

.

	begin_f_loop(f,t)

	{

		F_PROFILE(f,t,i) = massfr;

	}

	end_f_loop(f,t)

.

RP_Set_Real("qintudf",(massfr/998.2)); // this line does nothing in parallel with 2 or more nodes

---

thank you in adavance.

[DrAmine]

You did the test and it shows that is not executed. I will try to sync host with node processes. Perhaps this is not required with you to your variable.

For further debugging start Gluent with zero cpu: that is the old serial solver.