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get_memory_bytes() — pytorch Function Reference

Architecture documentation for the get_memory_bytes() function in kernels.py from the pytorch codebase.

Function python DynamoBenchmarks Configuration

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benchmarks/dynamo/genai_layers/kernels.py lines 470–475

    def get_memory_bytes(self, args, kwargs) -> int:
        x, w, dy = args
        # x, dy: [M, N], w: [N]
        M, N = x.shape
        # Read x, w, dy, write dx, dw
        return 3 * M * N * x.dtype.itemsize + 2 * N * w.dtype.itemsize

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