Parallel database extension software

Database
The Teradata Database channel includes discussions around advanced Teradata features such as high-performance parallel database technology, the optimizer, mixed workload management solutions, and other related technologies.
Enthusiast

Parallel database extension software

Can someone please help me to understand how PDE enables parallel behaviour for OS

Tags (1)
2 REPLIES
Teradata Employee

Re: Parallel database extension software

PDE is a parallel operating system. It utilizes services in each node's local OS for normal OS functions (memory management, scheduling, IO,...). PDE implements a virtualizing environment on top of those services called VProcs which allow many AMPs to be run on each node and manages the configuration. On top of that it provides parallel services such as global addressing for AMPs, point to point, broadcast and AMP group messaging, global semaphores, system startup and shutdown, failure detection and recovery, ... . Teradata Database only uses PDE services which makes PDE also a portability layer insulating the database from details of the underlying operating system and platform - allowing the database to operate on a wide variety of purpose built and cloud configurations.

Enthusiast

Re: Parallel database extension software

Thanks ToddAWalter.