Open Communication Manager for Parallel Thread Termination
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Solution Overview
Problem
Massively parallel computing applications face significant challenges in transitioning between modes or applications due to lengthy initialization and shutdown sequences, which reduce operational capability in real-time environments, particularly in systems like multi-mode radar systems.
Innovation Solution
A system and method that utilize an open communication manager to track and complete open communications between threads of a process and other processes, allowing for fast and graceful termination of threads without leaving incomplete communications, thereby minimizing transition time and maintaining system stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If threads are terminated using traditional shutdown sequences, then system stability is maintained through proper communication completion, but transition time becomes excessively long
Solution Approach 1:
The system performs preliminary actions by maintaining information about open communications between threads and other processes before termination. When a thread termination command is received, the system proactively completes these open communications on behalf of the threads, ensuring proper shutdown protocols are followed without requiring the threads to actively participate in the completion process.
Solution Approach 2:
The system acts as an intermediary by taking over the communication completion task from the threads themselves. Instead of requiring threads to gracefully close their communications with other processes, the system intercepts the termination command, identifies pending communications, and completes them on behalf of the threads, thereby decoupling the termination trigger from the communication completion process.
2Loss of time
If fast thread termination is implemented without completing open communications, then transition time is reduced, but incomplete communications are left hanging causing system instability
Solution Approach 1:
The system extracts the communication completion task from the thread termination process. By separating these two operations, the system can terminate threads immediately while independently handling the completion of their open communications, thus eliminating the coupling that previously forced a choice between speed and stability.
Solution Approach 2:
The system provides self-service by automatically completing open communications without requiring external intervention or thread participation. When termination is commanded, the system autonomously identifies and completes pending communications, ensuring proper shutdown behavior occurs automatically as part of the termination process.
Data Source
AI summary
Embodiments relate to facilitating quick and graceful transitions for massively parallel computing applications. A computer-implemented method for facilitating termination of a plurality of threads of a process is provided. The method maintains information about open communications between one or more of the threads of the process and one or more of other processes. In response to receiving a command to terminate one or more of the threads of the process, the method completes the open communications on behalf of the threads after terminating the threads.