How do I modify serial UDF to parallel?

nago · September 8, 2020, 05:21

hi.

I have serial UDF.
and i wanna use this to parallel calculation.
but I cannot understand the method of parallelization.

my UDF have function

DEFINE_ON_DEMAND
DEFINE_ADJUST
DEFINE_PROFILE
DEFINE_EXECUTE_AFTER_DATA

Anyone can tell me how to parallelization , or hint.
(So i am weak at UDF programming, I don't know what should I open info. sorry.)

nago

p.b+cfd · September 18, 2020, 10:38

This depends on the UDF you are using.

Basically parallel means there is a host and compute nodes. The nodes do the calculation and the host is connected to the cortex (gui) and otherwise mainly does IO. So everytime you interact with the gui or do IO, you need to transfer data between host/nodes.

For example if you read a rp-variable (on the host) you need to broadcast the retrieved value to the nodes, etc.

So depending on what exactly you are doing it might get complicated or not...

September 8, 2020, 05:21	How do I modify serial UDF to parallel?	#1
nago New Member Join Date: Aug 2018 Posts: 18 Rep Power: 9	hi. I have serial UDF. and i wanna use this to parallel calculation. but I cannot understand the method of parallelization. my UDF have function DEFINE_ON_DEMAND DEFINE_ADJUST DEFINE_PROFILE DEFINE_EXECUTE_AFTER_DATA Anyone can tell me how to parallelization , or hint. (So i am weak at UDF programming, I don't know what should I open info. sorry.) nago

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September 18, 2020, 10:38		#2
p.b+cfd New Member Join Date: Sep 2020 Posts: 8 Rep Power: 7	This depends on the UDF you are using. Basically parallel means there is a host and compute nodes. The nodes do the calculation and the host is connected to the cortex (gui) and otherwise mainly does IO. So everytime you interact with the gui or do IO, you need to transfer data between host/nodes. For example if you read a rp-variable (on the host) you need to broadcast the retrieved value to the nodes, etc. So depending on what exactly you are doing it might get complicated or not...