Heterogeneous Processor Workload Offloading via Service Call Analysis
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Solution Overview
Problem
Existing methods require recompiling source code to move work units between processors of different architectures, which is inefficient and limiting in heterogeneous computing environments.
Innovation Solution
A method to determine whether work units, specifically those containing service call or program call instructions, are eligible for offloading to a processor with a different architecture by examining these instructions and ensuring they are supported by the target processor, allowing offloading without recompilation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If work units are moved between processors of different architectures, then workload distribution and processing efficiency are improved, but recompiling source code is required which increases complexity and time consumption
Solution Approach 1:
The system performs preliminary analysis of work units to identify service call instructions and determine compatibility with target processors before actual offloading occurs. This advance preparation eliminates the need for recompilation by pre-verifying instruction compatibility, thus resolving the contradiction between improved workload distribution and reduced compilation complexity
Solution Approach 2:
The invention introduces an intermediary compatibility determination process that acts as a mediator between the source processor and target processor. This intermediary analysis of service call instructions verifies whether the target processor can execute the work unit without modification, enabling direct offloading without recompilation and thereby improving productivity while maintaining simplicity
2Adaptability or versatility
If work units are offloaded to heterogeneous processors, then processing capacity and flexibility are enhanced, but determining eligibility requires examining service call instructions which increases analysis time
Solution Approach 1:
The system extracts and specifically examines only the service call instructions from work units to determine processor compatibility, rather than analyzing the entire work unit. This selective extraction approach enables the system to achieve comprehensive compatibility verification while minimizing analysis time, thus resolving the contradiction between enhanced adaptability and reduced time loss
3Measurement precision
If service call instructions are examined to determine offloading eligibility, then accurate compatibility assessment is achieved, but the process becomes more complex compared to simple architecture matching
Solution Approach 1:
The compatibility assessment process is segmented into distinct steps: identifying service call instructions, extracting them from the work unit, and comparing them against the target processor's supported instruction set. This segmentation transforms a complex monolithic process into manageable discrete operations, achieving high measurement precision while controlling complexity through structured analysis
Data Source
AI summary
A work unit (e.g., a load module) to be executed on one processor may be eligible to be offloaded and executed on another processor that is heterogeneous from the one processor. The other processor is heterogeneous in that is has a different computing architecture and/or different instruction set from the one processor. A determination is made as to whether the work unit is eligible for offloading. The determination is based, for instance, on the particular type of instructions (e.g., particular type of service call and/or program call instructions) included in the work unit and whether those types of instructions are supported by the other processor. If the instructions of the work unit are supported by the other processor, then the work unit is eligible for offloading.