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andygrove/README.md

Hi there 👋

I'm Andy Grove, a software engineer specializing in distributed systems and query engines. I am the author of the book How Query Engines Work.

Career

I work for NVIDIA where I contribute to the RAPIDS Accelerator for Apache Spark, which is an open source plugin that provides GPU-acceleration for ETL workloads, leveraging the RAPIDS cuDF GPU DataFrame library.

Open Source

I am a PMC member of Apache Arrow, where I have made the following donations:

I now work on Arrow in my spare time to help drive these projects forward.

Hobbies

I occasionally work on hobby projects involving digital electronics, microcontrollers, woodworking, and similar skills. Some of my projects have been featured on popular "maker" web sites.

Social Media

Pinned

  1. Spark RAPIDS plugin - accelerate Apache Spark with GPUs

    Scala 297 83

  2. Apache Arrow DataFusion and Ballista query engines

    Rust 400 43

  3. Official Rust implementation of Apache Arrow

    Rust 280 43

  4. Apache Spark - A unified analytics engine for large-scale data processing

    Scala 29.7k 23.9k

2,208 contributions in the last year

May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Mon Wed Fri
Activity overview
Contributed to ballista-compute/ballista, apache/arrow, NVIDIA/spark-rapids and 5 other repositories

Contribution activity

May 2021

Created 2 repositories

Created a pull request in NVIDIA/spark-rapids that received 18 comments

Update CBO to use fixed cost model and to respect estimated row counts

Changes in this PR: Switch from relative cost per operator to absolute cost that takes estimated row count into account CPU and GPU have separate …

+158 −73 18 comments

Created an issue in apache/arrow-datafusion that received 5 comments

test_string_expressions test failure on Raspberry Pi (32-bit OS)

Describe the bug ---- test_string_expressions stdout ---- thread 'test_string_expressions' panicked at 'called `Option::unwrap()` on a `None` value…

5 comments