Hacker News: p_m_c

New comment by p_m_c in "Show HN: sllm – Split a GPU node with other developers, unlimited tokens"

p_m_c — Sat, 04 Apr 2026 18:52:57 +0000

Do you own the GPUs or are you multiplexing on a 3rd party GPU cloud?

New comment by p_m_c in "Unlocking Python's Cores:Energy Implications of Removing the GIL"

p_m_c — Mon, 09 Mar 2026 15:06:13 +0000

> Similarly, workloads where threads frequently access and modify the same objects show reduced improvements or even degradation due to lock contention.

Perhaps I'm stating the obvious, but you deal with this with lock-free data structures, immutable data, siloing data per thread, fine-grain locks, etc.

Basically you avoid locks as much as possible.

New comment by p_m_c in "Ask HN: What Are You Working On? (March 2026)"

p_m_c — Mon, 09 Mar 2026 05:01:33 +0000

I've been working a light-weight API gateway for dev use that supports auth and RBAC

https://github.com/paul-callahan/tiny-gateway

New comment by p_m_c in "Ask HN: Programmers who aren't front/back end/web developers, what is your job?"

p_m_c — Fri, 31 Jan 2025 00:50:53 +0000

I have worked on bond pricing and inventory systems, systems for options and credit default swaps, security agents for runtimes like java, python, industrial control software (SCADA).

New comment by p_m_c in "The matrix calculus you need for deep learning (2018)"

p_m_c — Sat, 03 Apr 2021 03:08:04 +0000

Calculus Made Easy - 1910. It is even entertaining.

"What One Fool Can Do, Another Can. (Ancient Simian Proverb.)"

https://calculusmadeeasy.org/

New comment by p_m_c in "Show HN: Simplenetes – I replaced Kubernetes with 17k lines of shell script"

p_m_c — Fri, 02 Apr 2021 02:40:35 +0000

great job! looks like a fun project.