PrimTorch: could we get pure core-aten-ops or prims-ops after aot_autograd

[YellowHCH]

@YellowHCH

But Fx Graph after aot_autograd seems like a mix of both ATen and Prims ops.

Incorrect.
Ref to:

Tracing with Primitives: Update 2

Hey PyTorch developers and community members! The “tracing with primitives” program continues to grow, with over a dozen direct contributors who have added Python reference implementations for more than a quarter of PyTorch’s torch, torch.nn.functional, torch.linalg, torch.fft, and torch.special operations! (To learn more about why we’re writing Python reference implementations of PyTorch operators see “Tracing with Primitives: Update 0”.) As the project expands it uncovers interesting challen…