Supervisor Thread Folding for Multithread Race Condition Diagnosis
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Solution Overview
Problem
The complexity of designing dynamic multithreading architectures that effectively utilize multiple processor cores has hindered the adaptation of multi-core processors, with challenges in identifying and diagnosing issues such as race conditions and thread synchronization in multithreaded computer programs.
Innovation Solution
A computer-implemented method for runtime analysis of multithreaded programs, where threads are identified and folded into a single thread for execution, monitored, and their status presented in a user interface, allowing for control and diagnosis of thread behavior, including serialization, priority management, and lock usage tracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multithreaded computer programs are designed to effectively use multiple processor cores, then processing power and execution speed are improved, but the complexity of thread management and diagnosis of execution problems increases
Solution Approach 1:
The patent introduces a supervisor thread as an intermediary that manages and coordinates multiple worker threads. This supervisor thread handles thread creation, task distribution, synchronization, and termination, thereby reducing the complexity of direct thread management and enabling effective multithreaded execution on multiple processor cores
2Productivity
If multiple threads are executed in parallel to increase processing power, then productivity is improved, but the difficulty of detecting and measuring execution problems such as race conditions increases
Solution Approach 1:
The patent implements comprehensive feedback mechanisms where the supervisor thread continuously monitors worker thread execution status, collects performance metrics, and detects execution problems. This feedback system enables real-time identification of race conditions and other thread-related issues, making diagnosis significantly easier while maintaining parallel execution for improved productivity
3Reliability
If threads are monitored and controlled in real-time to identify execution problems, then reliability is improved, but the device complexity increases
Solution Approach 1:
The supervisor thread serves multiple functions simultaneously: it creates worker threads, distributes tasks, monitors execution, collects feedback, detects problems, and terminates threads. This multi-functional design improves execution reliability through comprehensive monitoring while avoiding the complexity of separate dedicated monitoring components
Data Source
AI summary
A computer hardware system configured to perform runtime analysis and runtime control of a multithreaded computer program includes at least one processor. The at least one processor is configured to initiate and/or perform the following. A plurality of the threads are folded, under control of a supervisor thread, together to be executed as a single folded thread. The execution of the folded thread is monitored to determine a status of the threads. At least one indicator corresponding, to the determined status of the threads, is presented in a user interface.