Method Macro Expander for GPU Work Packet Processing
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Solution Overview
Problem
The existing methods for transmitting state information from a central processing unit (CPU) to a graphics processing unit (GPU) face limitations due to restricted bandwidth and inflexible packet formats, leading to underutilization of bandwidth and increased processing overhead.
Innovation Solution
A computer-implemented method involving a method macro expander (MME) that receives packets of work, executes commands to generate expanded packets, and transmits them for further execution, reducing processing requirements and bandwidth usage by performing expansion operations such as unpacking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If state information is transmitted via fixed-size packets over a limited-bandwidth channel, then the transmission format is simple and standardized, but the bandwidth utilization is inefficient because users do not exhaustively use the entire packet
Solution Approach 1:
The patent segments the fixed-size transmission packets into variable-length state information units based on actual data requirements. The MME extracts only the necessary state information from each packet, allowing the system to maintain simple fixed-size transmission formatting while efficiently utilizing bandwidth by processing only the relevant portion of each packet.
2Reliability
If a transmission format is optimized for highly specialized applications, then the format provides comprehensive state information, but it requires transmission of extra state information for applications with more modest feature sets
Solution Approach 1:
The patent implements a dynamic state information extraction mechanism where the MME adapts the amount of state information transmitted based on the specific application's feature set requirements. The system dynamically determines which state information elements are necessary and transmits only those, rather than using a static format that always includes all possible state information.
3Quantity of substance
If a transmission format is optimized for minimal applications, then the data transmission volume is reduced, but extra processing work is required to pack together various pieces of state set independently
Solution Approach 1:
The patent introduces the MME as an intermediary component between the transmission channel and the processing pipeline. The MME performs the necessary packing and organization of state information from fixed-size packets into the appropriate format for the processing pipeline, eliminating the need for complex packing operations in the application layer while maintaining efficient data transmission.
4Ease of operation
If the device driver performs all expansion operations on packets of work, then the processing is centralized and controlled, but the processing burden on the device driver increases and more bandwidth is needed
Solution Approach 1:
The patent extracts the expansion operation functionality from the device driver and relocates it to the MME component. The device driver simply transmits packets of work to the MME, which then performs the expansion operations and generates the appropriate processing pipeline packets. This extraction reduces the device driver's processing burden while maintaining centralized control over the expansion process.
Data Source
AI summary
One embodiment of the present invention sets forth a method macro expander (MME) coupled to a driver and the processing pipeline of a graphics processing unit. In operation, the MME receives, from the driver, a first packet of work indicating a macro stored in an instruction memory that is to be executed. The MME then executes the commands of the macro in the instruction memory to generate a second packet of work, and the second packet of work is then transmitted to the processing pipeline for further execution.