N-Prolog ver4.71 Release Notes

N-Prolog ver4.71 Release Notes
Release Date

August 31, 2025

Major Updates

1. Bug Fixes

• dp_and / dp_or

Fixed cases where control would not return in distributed parallel computations.

Resolved race conditions caused by the timing of child process responses.

Control now reliably returns to the parent process even when all child tasks fail.

2. New Features

• dp_trace / dp_notrace

Enables the parent process to monitor child processes in real-time.

Allows checking the progress and response status of parallel computations.

3. Internal Improvements

Buffers are now cleared before sending messages to child processes.

Ensures correct control return even in high-speed execution environments.

Stability and reliability of distributed parallel processing have been improved.

Recommendations

Users who need stable distributed parallel execution should use ver4.71 or later.

Use dp_trace to monitor and debug parallel computations effectively.