8000 Startup times are slow · Issue #384 · volcengine/verl · GitHub
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Startup times are slow #384

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casper-hansen opened this issue Feb 25, 2025 · 4 comments
Open

Startup times are slow #384

casper-hansen opened this issue Feb 25, 2025 · 4 comments

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@casper-hansen
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The time it takes to startup a training using veRL with vLLM is quite extensive.

In my estimation, it takes 3.7 minutes to startup veRL, excluding the time to spinup Ray on multiple nodes.

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@casper-hansen casper-hansen mentioned this issue Feb 25, 2025
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@vermouth1992
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Yeah, this is a known problem. What's the model size are you using?

@casper-hansen
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This is with Qwen 2 7B

@casper-hansen
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Today with 4x nodes and Qwen 2.5 7B, I logged 6.7 minutes until step 1. @vermouth1992 Do you have any idea of which process in the init is taking so long and if we can optimize it?

@dddraxxx
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same

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@vermouth1992 @casper-hansen @dddraxxx
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