Maintaining throughput while scaling expert count
The post reports that increasing the expert pool from 8 to 128 while selecting only four experts per token kept active parameters per token roughly fixed at ~3.2B; total parameter capacity grew from 4.6B to 47B with less than 5% drop in training throughput.
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Introducing Olmo-core 3: Open, scalable training infrastructure for large MoEs
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In one benchmark, we increased the expert pool from 8 to 128 while still selecting only four experts per token – the small units of text a language model processes – keeping the number of active parameters per token roughly fixed at about 3.2B. Total parameter capacity grew from 4.6B to 47B, while training throughput fell by less than 5%.
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Olmo-core 3 is built to close that gap.
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