Chuang Zhu

Results 4 issues of Chuang Zhu

improvement
non-breaking

Ucx ip port remove mpi dependence based on https://github.com/NVIDIA/TensorRT-LLM/pull/3065 but remove MPI world dependency

## Summary by CodeRabbit * **Bug Fixes** * Improved memory management during KV-cache estimation to prevent potential conflicts and enhance system stability. ✏️ Tip: You can customize this high-level summary...