RVC-Project/Retrieval-based-Voice-Conversion-WebUI
Auf GitHub ansehenSlower Multi-GPU training with 2x the number of GPUs and 4x the amount of VRAM
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#244 geöffnet am 7. Mai 2023
help wantedquestion
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Beschreibung
I have two systems training on identical datasets
System A has 4 x NVIDIA RTX A5000 (24GB VRAM per GPU), and a batch size of 12 per GPU.
System B has 7 x NVIDIA RTX A6000 (48GB VRAM per GPU), and a batch size of 18 per GPU.
I would expect System B to train much faster. However...
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System A (96GB total VRAM, batch size 12) takes 11 seconds per epoch.
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System B (336GB total VRAM, batch size 18) takes 13 seconds per epoch.
I'm wondering if this is down to the overhead of multi-GPU training, or if there's something I'm missing here?
Thank you