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matmul style is still reshape (#11308)

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George Hotz
2025-07-21 11:14:57 -07:00
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@@ -38,7 +38,9 @@ tinygrad can run [LLaMA](/docs/showcase.md#llama) and [Stable Diffusion](/docs/s
Try a matmul. See how, despite the style, it is fused into one kernel with the power of laziness.
```sh
DEBUG=3 python3 -c "from tinygrad import Tensor; N = 1024; a, b = Tensor.empty(N, N), Tensor.empty(N, N); (a @ b).realize()"
DEBUG=3 python3 -c "from tinygrad import Tensor;
N = 1024; a, b = Tensor.empty(N, N), Tensor.empty(N, N);
(a.reshape(N, 1, N) * b.T.reshape(1, N, N)).sum(axis=2).realize()"
```
And we can change `DEBUG` to `4` to see the generated code.