Large File Merge Instructions

Overview

Some large files have been split into 1GB chunks for easier upload/download. The split files are stored in dedicated *_files/ directories alongside the original file location.

Files that need merging

kb_index.faiss (25.3 GB)
- Split into ~26 parts in 2M_kb_eval/echosight_evqa_2M_kb/kb_index_files/

How to Merge

After downloading this dataset, navigate to the specific *_files/ directory and run the merge script:

cd annotation/2M_kb_eval/echosight_evqa_2M_kb/kb_index_files/
python merge_chunks.py

This will automatically:

Detect all .part* files in current directory
Merge them back into the complete file (e.g., kb_index.faiss)
Place the merged file in the parent directory (../)
Optionally delete the .part files after successful merge

Requirements

Python 3.6+
Sufficient disk space (at least 2x the size of the largest file during merge)

Verification

After merging, verify the file exists in the parent directory:

ls -lh ../kb_index.faiss

Expected size: ~25.3 GB