optimize-for-gpu

optimize-for-gpu is a skill for Claude Code, Codex from dralkh/iktinah. It costs 184 tokens per session (8,436 once invoked), scanned A, original, MIT.

A guide for speeding up Python workloads on NVIDIA GPUs using libraries for arrays, data frames, machine learning, graphs, images, and scientific computing.

In plain words
What is it for?
Use it to adapt NumPy, pandas, scikit-learn, graph, image, vector-search, and RAG code for NVIDIA GPU execution.
Why use it?
It helps move suitable CPU-based Python work to GPU hardware when large datasets or numerical calculations take too long.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/dralkh/iktinah/optimize-for-gpu
Any agent
npx skills add dralkh/iktinah --skill optimize-for-gpu
Clone the repo
git clone --depth 1 https://github.com/dralkh/iktinah

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for optimize-for-gpu

README.md
[![agentmods](https://agentmods.dev/badge/skills/dralkh/iktinah/optimize-for-gpu.svg)](https://agentmods.dev/skills/dralkh/iktinah/optimize-for-gpu)
Your own site
<a href="https://agentmods.dev/skills/dralkh/iktinah/optimize-for-gpu"><img src="https://agentmods.dev/badge/skills/dralkh/iktinah/optimize-for-gpu.svg" alt="Measured on agentmods" height="20"></a>
Per session 184 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 8,436 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00184 $0.08436
Opus 5 $0.00092 $0.04218
Sonnet 5 $0.00037 $0.01687
Haiku 4.5 $0.00018 $0.00844

Measured 2d ago against content hash 393e4e661759, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

optimize-for-gpu scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

Copies of this mod

3 near-identical copies found in the catalogue:

skills/optimize-for-gpu/SKILL.md · 700 lines

How it starts

The opening of the file, as written. The whole thing — 700 lines — stays where its author put it; the contents beside it link to each section on GitHub.

GPU Optimization for Python with NVIDIA

You are an expert GPU optimization engineer. Your job is to help users write new GPU-accelerated code or transform their existing CPU-bound Python code to run on NVIDIA GPUs for dramatic speedups — often 10x to 1000x for suitable workloads.

When This Skill Applies

  • User wants to speed up numerical/scientific Python code
  • User is working with large arrays, matrices, or dataframes
  • User mentions CUDA, GPU, NVIDIA, or parallel computing
  • User has NumPy, pandas, SciPy, scikit-learn, NetworkX, or scipy.sparse.linalg code that processes large datasets
  • User needs low-level GPU primitives (sparse eigensolvers, device memory management, multi-GPU communication)
  • User is doing machine learning (training, inference, hyperparameter tuning, preprocessing)
  • User is doing graph analytics (centrality, community detection, shortest paths, PageRank, etc.)
  • User is doing vector search, nearest neighbor search, similarity search, or building a RAG pipeline
  • User has Faiss, Annoy, ScaNN, or sklearn NearestNeighbors code that could be GPU-accelerated
  • User wants GPU-accelerated interactive dashboards, cross-filtering, or exploratory data analysis on large datasets
  • User is doing geospatial analysis (point-in-polygon, spatial joins, trajectory analysis, distance calculations) with GeoPandas or shapely
  • User is doing image processing, computer vision, or medical imaging (filtering, segmentation, morphology, feature detection) with scikit-image or OpenCV
  • User is working with whole-slide images (WSI), digital pathology, microscopy, or remote sensing imagery
  • User is loading large binary data files into GPU memory (numpy.fromfile → cupy, or Python open() → GPU array)
  • User needs to read files from S3, HTTP, or WebHDFS directly into GPU memory
  • User mentions GPUDirect Storage (GDS) or wants to bypass CPU-memory staging for file IO
  • User is doing physics simulation (particles, cloth, fluids, rigid bodies) or differentiable simulation
  • User needs mesh operations (ray casting, closest-point queries, signed distance fields) or geometry processing on GPU
  • User is doing robotics (kinematics, dynamics, control) with transforms and quaternions
  • User has Python simulation loops that could be JIT-compiled to GPU kernels
  • User mentions NVIDIA Warp or wants differentiable GPU simulation integrated with PyTorch/JAX
  • User is doing simulations, signal processing, financial modeling, bioinformatics, physics, or any compute-intensive work
  • User wants to optimize existing code and GPU acceleration is the right answer

Read the full file on GitHub · 700 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 700 lines · 184 tokens per session scan A 393e4e661759

Subscribe to this mod's changes

optimize-for-gpu is a skill published in the GitHub repository dralkh/iktinah (77 stars, last pushed 1mo ago), licensed MIT. It adds 184 tokens to every session and 8,436 once invoked, about $0.0009 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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