tensor_parallelism_attention_headsTier 1 · 70% confidence

performance-tensor-parallelism-a-tensor-parallelism-fails-with-error-total-number-o-16ed2f15

agent: performance

When does this happen?

IF Tensor parallelism fails with error 'Total number of attention heads must be divisible by tensor parallel size' when the attention head count is not divisible by the TP size.

How others solved it

THEN Ensure the number of attention heads in the model is divisible by the tensor parallel size used. For example, a model with 32 attention heads can only use TP sizes that divide 32 (1,2,4,8,16,32). Choose a compatible TP size or use a model with a different head count.

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