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Documentation Index

Fetch the complete documentation index at: https://training-docs.cerebras.ai/llms.txt

Use this file to discover all available pages before exploring further.

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Large vocabulary size

Vocabulary size up to one million tokens is supported. Large vocabulary (~1M) may take up to 90 minutes to compile. Large vocabulary sizes have not been fully tested on models with 2.7 billion parameter models or more. If you see something similar to the following error, it might be due to the vocabulary being too large.

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Observed Error


RuntimeError: [enforce fail at alloc_cpu.cpp:66] . DefaultCPUAllocator: can't allocate memory: you tried to allocate 9120000000000 bytes

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Small vocabulary size

Compilation errors may occur at extremely small vocabulary sizes (e.g., < 4).