UPSTREAM PR #18934: ggml-cuda: enable cuda-graphs for n-cpu-moe#971
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UPSTREAM PR #18934: ggml-cuda: enable cuda-graphs for n-cpu-moe#971
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Mirrored from ggml-org/llama.cpp#18934
Add piece-wise cuda graph for the multiple split case. Currently cuda graphs get disabled when there are splits as we only keep 1 cuda graph per device. Multiple updates with different sized splits/shapes triggers the disable.
This PR adds a cuda graph per split (a split is keyed via the first node in the split)
Tested on 2x4090 and 1x 5090