The output (language-model head) table. More...

Concept definition

        template<typename TPlan>
        concept LanguageModelHeadRole =
        requires { typename TPlan::LanguageModelHead; }
        && WeightQuantPolicy<typename TPlan::LanguageModelHead>

Detailed Description

The output (language-model head) table.

Separate from EmbeddingTable because the two tables only share a policy when they share an allocation. A tied family (Gemma) names one policy twice and loses nothing; an untied one (Qwen 3.8, tie_word_embeddings: false) reads the head every decode step and gathers one row from the table, so the two are priced against different costs and land at different widths.