ggml-opt: fix data corruption #1022
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Looking at the code I'm finding small defects which (while not a problem currently) could lead to bugs depending on how the API is used. I think it would make sense to accumulate the resulting small changes into a single PR to reduce the time needed for reviewing and testing. I'll convert this to a draft for now. |
JohannesGaessler
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| graph->grads[igrad_dst] = new_graph->grads[igrad_src]; | ||
| graph->grad_accs[igrad_dst] = new_graph->grad_accs[igrad_src]; |
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This seems to be why the tests were sometimes crashing. The direction of the copy is wrong so garbage could be written to the graph that is supposed to only be copied.
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Can confirm test-opt no longer crashes or fails.
JohannesGaessler
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slaren
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Nov 20, 2024
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Small fixup to #988 .
Since there is now a distinction between statically and dynamically allocated gradients some workarounds for dynamically allocated gradients can be removed. This simplifies the code a bit and reduces the possible causes for the issues in #1020 .