Control Crossbar Dedicated Channels Reduce Main Load
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In computing systems, the inefficiency in data transport mechanisms leads to wasted bandwidth due to the use of a single physical channel for transmitting different types of data, where the design is optimized for the majority data traffic type, resulting in suboptimal performance for other types of data traffic.
Innovation Solution
A parallel processing unit with a control crossbar unit that implements dedicated transmission channels optimized for different types of control information, reducing the load on the main crossbar unit and minimizing bandwidth waste by using one-to-one, one-to-many, valid-to-one, valid-to-many, wire-to-one, and wire-to-many connections with optional flow control mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single physical channel is used to transmit different types of data, then device complexity is reduced, but bandwidth is wasted due to suboptimal performance for certain data types
Solution Approach 1:
The patent divides the data transport mechanism into separate physical channels for different data types (control data, vertex data, fragment data, etc.). Each channel is dedicated to transmitting specific types of data, eliminating the need to share bandwidth across multiple data types and thus reducing bandwidth waste while maintaining manageable system complexity through structured segmentation.
2Productivity
If the physical channel is optimized for the majority data traffic type, then productivity for that data type is improved, but performance deteriorates for other data types
Solution Approach 1:
The patent implements local quality by optimizing each dedicated physical channel for its specific data type. For example, control data channels are optimized for low latency and flow control requirements, while vertex and fragment data channels are optimized for their specific transmission patterns. This allows each channel to achieve optimal performance for its designated data type without compromising other types, thereby maintaining high adaptability across diverse data transmission needs.
3Loss of energy
If dedicated transmission channels are implemented for different control information types, then bandwidth waste is reduced, but device complexity increases
Solution Approach 1:
The patent applies universality by designing a unified control crossbar unit that manages multiple dedicated transmission channels for different control information types (one-to-one, one-to-many, valid-to-one, valid-to-many connections). This control crossbar unit serves multiple functions: it routes control data, manages flow control, and coordinates between different channel types, thereby reducing overall system complexity despite the presence of multiple dedicated channels.
Data Source
AI summary
One embodiment of the invention sets forth a control crossbar unit that is designed to transmit control information from control information generators to destination components within the computer system. The control information may belong to various traffic paradigms, such as short-latency data traffic, narrow-width data traffic or broadcast data traffic. The physical connections within the control crossbar unit are categorized based on the different types of control information being transmitted through the control crossbar unit. The physical connections belong to the following categories: one-to-one (OTO) connections, one-to-many (OTM) connections, valid-to-one (VTO) connections, valid-to-many (VTM) connections wire-to-one (WTO) connections and wire-to-many (WTM) connections.