P2P on GTX 1050 Ti

I am having three GTX 1050Ti in my workstation with an octacore AMD Ryzen processor. CUDA 11.2 with latest NVIDIA driver is installed on Ubuntu 20.04 LTS.

When I run tools like nvidia-smi, simpleP2P and p2pBandwidthLatencyTest, they all show that the three GPUs could not communicate by P2P over PCIe.

Do these GPUs support P2P? If so, how to activate P2P on them?

Thanks in advance.