romaLzhih/pab-tree-data

PaB-tree datasets

The inputs of the experiments in Parallel B+-trees: Theory and Practice (PPoPP 2027), 329 GB in 82 files. The code is at ucrparlay/pab-tree; see docs/ARTIFACT_EVALUATION.md there. Its scripts download real_world/, checked against scripts_ae/datasets.sha256, and generate the synthetic data.

The paths here are the paths the scripts expect under --data-path.

Real-world data, 88 GB

Dataset	Figure	Path	Size	Rows
OSM (Asia)	5	real_world/osm/asia_year_zcode.bin	27.6 GB	1.72 B records
RED	6	real_world/temporal_graph/signal/redd/0.bin	9.0 GB	747 M edges, 17 years
REF	6	real_world/temporal_graph/signal/ref/0.bin	13.7 GB	1.14 B edges, 27 years
SEM	6	real_world/temporal_graph/signal/sem/0.bin	29.9 GB	2.49 B edges, 229 years
PLANET	6, 8	real_world/temporal_graph/osm/planet_year/<i>_{insert,delete}.bin, i = 0 to 20	8.1 GB	745 M inserts, 266 M deletes

• OSM: key = 64-bit Morton code of the location, value = year.
• RED, REF, SEM: source, destination, and the year as a label from 1 up, ascending. Duplicate edges are removed and edges are shuffled within a year (tests/temporal_graph_signal.cpp).
• PLANET: source, destination; one file per year and operation (tests/temporal_graph_osm.cpp).

Synthetic data, 240 GB

10^9 entries each, 32-bit keys and values. The artifact does not read these copies: scripts_ae/ae_data_generate.sh generates the same data, about an hour on 64 threads with 106 GB of memory. incre/norm, incre/seg, single/uni and single/seg come out as these bytes. incre/uni is another permutation of the same distribution, as these files predate the generator's last change, and single/norm is a new sample of its distribution on every run.

Set	Figure	Path	Size
incre	4, 7	synthetic/incre/<dis>/1000000000_1/{ins,del}/<x>/1.batch.bin, x = 10, 100, 1000, 10000	192 GB
single	9	synthetic/single/<dis>/1000000000_1/{ins,del}/100/1.{base,batch}.bin	48.5 GB

• incre: one stream of batches of n/x per file; ins and del hold the same stream.
• single: a tree and one batch of n/100.
• <dis>: uni is uniform; norm (Skewed) draws each batch from normal(0.5, 0.1) over the keys left; seg (Adversarial) draws a batch of m uniformly from the leading 2m keys left.

Format

Little-endian: a uint64 header {N, dim, width}, then N rows of dim values of width bytes each, 4 or 8 (tests/binary_io.h).

License

MIT, except the data built from OpenStreetMap, which has to stay under the Open Database License: real_world/osm/ and real_world/temporal_graph/osm/. © OpenStreetMap contributors.

Sources

• real_world/osm/ comes from the OpenStreetMap extract asia-latest.osm.pbf of Geofabrik, fetched on 2026-04-14.
• real_world/temporal_graph/ comes from GraphTide: Brian Wheatman, Quinten De Man, Xiangyun Ding, Zhongqi Wang, Randal Burns, Laxman Dhulipala, Xiaojun Dong, Yan Gu, Yihan Sun and Letong Wang, Use Your Time(stamp) Wisely: The GraphTide Real-World Dynamic Graph Datasets, 2026, manuscript under review. PLANET is built from OpenStreetMap.
• synthetic/ is generated by the code in the repository above.