HackerNews Summary (2023-05-22 02AM)

Source: NVIDIA, Rolls-Royce and Classiq Announce Quantum Computing Breakthrough for Computational Fluid Dynamics in Jet Engines

Summary
Rolls-Royce, NVIDIA, and Classiq have designed and simulated the world’s largest quantum circuit for computational fluid dynamics. With 39 qubits and measuring 10 million layers deep, the circuit will help Rolls-Royce in designing more efficient jet engines. Meanwhile, NVIDIA offers a unified computing platform for speeding up quantum research and development with NVIDIA Grace Hopper Superchip.

Fact

✈️ Rolls-Royce, NVIDIA, and Classiq designed and simulated the world’s largest quantum circuit for computational fluid dynamics, measuring 10 million layers deep with 39 qubits

🔬 NVIDIA Grace Hopper Superchip combines the groundbreaking performance of NVIDIA GPUs with the versatility of NVIDIA Grace CPUs, which is ideally designed for giant-scale quantum simulation workloads

💻 NVIDIA offers a unified computing platform for speeding up quantum research and development with the help of the high-speed, low-latency NVIDIA NVLink-C2C interconnect and the NVIDIA CUDA Quantum programming model

Source: Debugging a FUSE deadlock in the Linux kernel

Summary
Tycho Andersen, part of the Compute team at Netflix, solved a stuck Docker API call and a zombie process issue. He poked at /proc to understand the matter and got schooled on how the kernel’s wait code works.

Fact

🐛 Tycho Andersen fixed a stuck Docker API call and resolved a zombie process issue.

Source: Why your team doesn’t need to use pull requests

Summary
Github introduced pull requests for accepting contributions from untrusted people, but many teams use it for team members as well. However, this practice sacrifices performance, including delivery time and quality. The practice of continuous integration can optimize flow and quality by frequently merging and testing everyone’s code as they work on it, providing immediate feedback and avoiding delays.

Facts

👥 Pull requests were introduced by Github to accept contributions from outside a team of trusted committers.

🛑 Using pull requests for code changes by your own team members can sacrifice performance, including delivery time and quality.

🚀 Continuous integration (CI) is the practice of frequently merging and testing everyone’s code as they work on it to optimize flow and quality.

🕒 Pull requests introduce a delay to integration and may lead to discovering major problems after investing significant time.

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