Tutorial Python Node: CPU/GPU Extended Attributes

This is a tutorial node. It exercises functionality for accessing data in extended attributes that are on the GPU as well as those whose CPU/GPU location is decided at runtime. The compute adds the two inputs ‘gpuData’ and ‘cpuData’ together, placing the result in cpuGpuSum, whose memory location is determined by the ‘gpu’ flag. This node is identical to OgnTutorialCpuGpuExtended.ogn, except is is implemented in Python.

Installation

To use this node enable omni.graph.tutorials in the Extension Manager.

Inputs

Name	Type	Descripton	Default
CPU Input Attribute (inputs:cpuData)	any	Input attribute whose data always lives on the CPU	None
Results To GPU (inputs:gpu)	bool	If true then put the sum on the GPU, otherwise put it on the CPU	False
GPU Input Attribute (inputs:gpuData)	any	Input attribute whose data always lives on the GPU	None

Outputs

Name	Type	Descripton	Default
Sum (outputs:cpuGpuSum)	any	This is the attribute with the selected data. If the ‘gpu’ attribute is set to true then this attribute’s contents will be entirely on the GPU, otherwise it will be on the CPU.	None

Metadata

Name	Value
Unique ID	omni.graph.tutorials.CpuGpuExtendedPy
Version	1
Extension	omni.graph.tutorials
Icon	ogn/icons/omni.graph.tutorials.CpuGpuExtendedPy.svg
Has State?	False
Implementation Language	Python
Default Memory Type	cpu
Generated Code Exclusions	None
tags	tutorial,extended,gpu
uiName	Tutorial Python Node: CPU/GPU Extended Attributes
Categories	tutorials
Generated Class Name	OgnTutorialCpuGpuExtendedPyDatabase
Python Module	omni.graph.tutorials

See the accompanying tutorial and annotated code at Tutorial 23 - Extended Attributes On The GPU