viable/strict/1788510868: Rename the CUPTI monitor to Cuspy (#195881)
The rename affects the in-process CUPTI activity collection engine used by torch.profiler's experimental backend. The component formerly known as the CUPTI monitor is now called Cuspy, with corresponding changes to file structures, modules, and pybind surfaces.
CuptiMonitor becomes Cuspy, and the surrounding CUPTI prefixes in C++ types, Python bindings, and configuration strings are updated accordingly. The old terms are retained only as deprecated aliases; the backend remains private and experimental, emphasizing a clean break from prior naming.
Why it matters: Standardizes naming to align with the new Cuspy component. Helps avoid ambiguity between CUPTI (NVIDIA) and the Cuspy monitoring engine, clarifying usage for users and contributors.
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