GGUF Alignment and Quantization Block Matrix
Parent: Local Inference Acceleration: Memory Architectures, Metal Kernels, and Latency Optimization · Published reference · snapshot 2026-09-30
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Facts and statements
- GGUF binary layout enforces 32-byte alignment for all tensor weight arrays, ensuring zero-copy vector instructions (NEON and AVX) execute without unaligned memory access penalties. (high confidence) [source]
- K-quants (Q4_K_M) partition weights into super-blocks of 256 weights containing sub-blocks with independent scales and offsets, preserving perplexity comparable to unquantized FP16 at a fraction of memory bandwidth. (high confidence) [source]
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