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Fix FLOPs calculation description in lecture_02.py #41

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Fix FLOPs calculation description in lecture_02.py #41

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2 changes: 1 addition & 1 deletion lecture_02.py
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Original file line number Diff line number Diff line change
Expand Up @@ -62,7 +62,7 @@ def main():
text("Summary:")
text("- Everything is operations on tensors (parameters, gradients, activations, optimizer states, data)")
text("- einops: better way to think about tensor operations")
text("- 6 (# data points) (# parameters) FLOPs per training step")
text("- 6 (# batch size) (# sequnce length) (# parameters) FLOPs per training step")
text("- Arithmetic intensity / roofline analysis: compute-bound or memory-bound?")
text("- Matrix multiplications are compute-bound, elementwise operations are memory-bound")
text("- Gradient accumulation, activation checkpointing: reduce memory to use bigger batch sizes")
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