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by chewxy
2551 days ago
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Not numpy, but Gorgonia tensors are just pointers. The reason: it's cheaper to pass around one word than the absolute minimum "fatness" to pass around a multidimensional array. The absolute minimum meta info required for a multidim array is shape, stride. Numpy implements them as a [HUGENUMBER] array of integers for both. Gorgonia implements them as slices. Both of these incur a lot of additional movement of memory. More here: https://youtu.be/fd4EPh2tYrk?t=654 |
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