# ashhart/MCDMA

> Experimental native macOS RDMA driver and userspace verbs provider for Mellanox ConnectX-5 Ex, enabling low-latency data exchange between a Mac Studio and an NVIDIA DGX Spark without TCP.

- Magnitude: 0.9 out of 10 — Steady
- Stars: 143 total · +3 stars on 2026-09-30 (UTC)
- Star trust: star growth looks organic
- Category: DevOps & infrastructure · Language: C++ · License: Apache-2.0 · Created: 2026-09-14 · Last push: 2026-09-29
- GitHub: https://github.com/ashhart/MCDMA · Page: https://gitnova.dev/en/r/ashhart/MCDMA

## Useful for

- Build and install the MCDMA driver on a Mac Studio with a Thunderbolt-attached ConnectX-5 Ex NIC
- Benchmark RDMA WRITE and READ latency between a Mac Studio and a DGX Spark using the included tests
- Run fabric-keepalive to test how Metal GPU activity affects RDMA latency

## Why it’s here

- 3 stars today.
- The repository is 16 days old and already has 143 stars.
- Recent forks include notable developers: @alexdolbun (706 followers).

## Star trust

Star growth looks organic.

Star-trust labels are heuristics based on the repository’s behavior, not a check of every stargazer.

## Numbers

- Forks: 9
- Issues and pull requests: 11
- Watchers: 3
- Average over the last week: 3 per day
- Usual pace: 6 per day

## Stars per day, last 30 days (oldest → newest, today is partial)

2026-10-04 … 2026-11-02: None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None

## Magnitude by day, last 14 days

09-17 2.1, 09-18 1.3, 09-19 1.6, 09-20 1.4, 09-21 1.8, 09-22 1.8, 09-23 1.3, 09-24 1.7, 09-25 1.4, 09-26 1.7, 09-27 1.6, 09-28 1.2, 09-29 0.7, 09-30 1.0

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Magnitude (0–10) measures how fast and how unusually interest in a repository is growing right now. It is not a quality score.
Days are UTC. “So far today” is a fact; “expected by the end of the day” is a forecast.
Summaries and use cases are written by an LLM (DeepSeek V4.1 Flash) from the README and may be inaccurate: verify specific claims (benchmarks, speed, hardware) in the repository itself.
Data as of 2026-09-30 23:58 UTC, updated every 30 minutes.