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Daily bookmarks: relevant news, facts and discoveries.

Engineering

Triton: understanding `tl.make_block_ptr`

A post introduces how tensors are arranged in GPU memory and explains strides, offsets, and `tl.make_block_ptr`, using visual resources to help reason about data access in Triton kernels.

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Engineering

CUDA: 256-bit operations on the GPU

A tutorial published on September 22, 2025 covers implementing 256-bit multiplication and addition on a GPU with CUDA; the full code is said to be in the comments.

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Engineering

MIT study tests theory-based prompts for social agents

Published on September 22, 2025, the post describes a study using behavioral theory and small human datasets to create prompts. Agents were evaluated in related but distinct scenarios and reportedly had lower prediction error on new game variants than language models and baselines.

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Engineering

Penny: a development diary for GPUs

The first installment in a series follows the manual creation of Penny, a GPU communication library, offering context for engineers interested in this kind of development.

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Engineering

GPU and AI performance reading list

Published on September 18, 2025, this bookmark collects material on CUDA, H100 and cuBLAS matmul optimization, nondeterminism in LLM inference, transformers, scaling, and hardware-model co-design.

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Engineering

Graphcore IPU: architecture and parallelism

A post published on September 18, 2025 describes an IPU with 1,472 processing cores, nearly 9,000 parallel threads, and 900 MB of in-processor memory, aimed at graph-based computing and irregular, sparse workloads.

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Engineering

FireRedTTS 2: an open text-to-speech model

Published on September 17, 2025, the announcement describes an open text-to-speech model supporting long conversational speech, multilingual and cross-lingual voice cloning, low latency, and random timbre generation.

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