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Estimate adapter memory overhead in choose_num_blocks() #346
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borzunov
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Jul 13, 2023
block, block_index=0, adapter_name=adapter, peft_config=peft_config, peft_state_dict=peft_state_dict | ||
) | ||
adapter_parameters = sum(p.numel() for p in block.parameters()) - base_block_parameters | ||
bytes_per_parameter = torch.finfo(resolve_block_dtype(block_config, torch_dtype)).bits / 8 |
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Doesn't adapters have a different dtype from the base block?
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they should have the same, lest forward pass would cause an error
borzunov
reviewed
Jul 13, 2023
borzunov
reviewed
Jul 13, 2023
borzunov
changed the title
Estimate adapter memory overhead for the purpose of num_blocks
Estimate adapter memory overhead in choose_num_blocks()
Jul 13, 2023
Co-authored-by: Alexander Borzunov <borzunov.alexander@gmail.com>
Co-authored-by: Alexander Borzunov <borzunov.alexander@gmail.com>
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This PR changes the way the server determines how many blocks it can handle if that server has at least one adapter. It does so by including the adapter parameters in the total block size that divides the free GPU memory.
ToDos: