Practices for Beginners

This section lists some common practices to help you understand and use ModelArts for AI development.

**Table 1** Common best practices
Practice		Description
Assigning permissions for using ModelArts	Assigning Basic Permissions for Using ModelArts	Assign specific ModelArts operation permissions to the IAM users under a Huawei Cloud account. This prevents exceptions from occurring due to permissions when the IAM users access ModelArts.
Training a model	Example: Creating a Custom Image for Training (Horovod-PyTorch and GPUs)	This section describes how to create an image and use it for training on ModelArts. The AI engine used in the image is PyTorch, and the training runs on CPUs or GPUs.
Deploying a service for inference	Creating a Custom Image and Using It to Create an AI Application	If you want to use an AI engine that is not supported by ModelArts, create a custom image, import the image to ModelArts, and use the image to create AI applications. This section describes how to use a custom image to create an AI application and deploy the application as a real-time service.