NCP-AII Question 42
Select 3You are tasked with configuring an NVIDIA NVLink™ Switch in a multi-GPU system. Which of the following steps are essential to ensure the NVLink connections are correctly installed and configured for optimal performance?
- A
Verify that all GPUs in the system support NVLink and are compatible with the switch.
- B
Ensure that the NVLink Switch firmware is updated to the latest version.
- C
Connect all GPUs to the NVLink Switch in a random order to allow dynamic link allocation.
- D
Verify the NVLink topology using the NVIDIA System Management Interface (nvidia-smi).
- E
Manually adjust the GPU clock speeds to align with NVLink bandwidth.
Show answer and explanation
Correct answers: A, B, D
Explanation
To properly install and configure an NVIDIA NVLink™ Switch, it is essential to verify GPU compatibility, ensure the NVLink Switch firmware is up to date, and confirm the correct NVLink topology using tools like nvidia-smi. These steps ensure that the NVLink connections are functioning optimally and that the system is ready to leverage the high-speed interconnect for GPU communication.
- A. Correct.
Verifying GPU compatibility is critical because not all GPUs support NVLink or may be compatible with the specific NVLink Switch being used.
- B. Correct.
Keeping the NVLink Switch firmware updated ensures support for the latest features, bug fixes, and compatibility improvements.
- C. Incorrect.
Connecting GPUs in a random order is incorrect, as NVLink requires a specific topology configuration to ensure proper communication between GPUs.
- D. Correct.
Using the NVIDIA System Management Interface (nvidia-smi) to verify the NVLink topology is essential to confirm that the connections are correctly established and functioning as expected.
- E. Incorrect.
Manually adjusting GPU clock speeds is not required for NVLink configuration, as NVLink operates independently of manual clock speed settings.