rapidsai/cudf

[FEA] write a grep utility with cuDF

Open

#21078 opened on Jan 16, 2026

View on GitHub
 (4 comments) (0 reactions) (0 assignees)C++ (6,000 stars) (735 forks)batch import
feature requestgood first issueproposalstrings

Description

Is your feature request related to a problem? Please describe. Regex features are available in cudf string APIs and nvtext APIs. grep is widely used utility. It would cool to try creating cudfgrep with cudf/nvtext and document the throughput.

Describe the solution you'd like Create cudfgrep utility in our python codebase or a C++ example with libcudf APIs.

Additional context Benchmark it without GDS (most common usecase). Benchmark on GPU in PCIE, and on Grace systems with fast C2C.

Contributor guide

Tech stack
cpppython
Domain
dataperformance
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
cuDF basicsregexPython or C++
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60
Research direction
Examine cuDF string API documentation for regex functions. Look at existing nvtext examples for reference. Study similar utilities in the repository for code structure. Consider implementing a simple prototype in Python first, then possibly in C++. Benchmark on relevant hardware.