Comments (1)
After diving deep in the code, look like this line
ColBERT/colbert/indexing/codecs/decompress_residuals.cu
Lines 42 to 50 in 862edcf
restrict cpp method decompress_residuals_cuda
on GPU device 0 only. decompress_residuals_cuda
will crash when running on other GPUs.
After update it to .device(torch::kCUDA, residuals.device().index())
. The crash problem is resolved.
Should we update to .device(torch::kCUDA, residuals.device().index())
? This should also significantly increase the model inferencing efficiency by enabling model inference on multiple GPUs.
Wondering if this is a bug or designed intentionally.
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