Câu 6: NCP-AII: NCP-AI Infrastructure

An engineer needs to verify NVLink isolation on a single node with 8 GPUs. Which NCCL test configuration stresses switch bisection bandwidth?

1. A. Use NCCL_TESTS_SPLIT= “DIV 8” with point-to-point tests
2. B. Use all_reduce_perf –b 8 –e 16G –f2 –g 8 with NCCL_TESTS_SPLIT= “AND 0x1” — đáp án hiện tại
3. C. Use all_reduce_perf –b 8 –e 16G –f2 –g 8 without splits
4. D. Use reduce_scatter_pref –b 8 –e 16G –f2 –g 4