GPU not being used, after enabling gpu=true and index being created

[shashi-netra]

Installed Milvus on Ubuntu 18, GE Force GTX 1080 NVIDIA-SMI 440.100 Driver Version: 440.100 CUDA Version: 10.2
and created an index of ~10MM vectors of dimensionality 512.

When I run a query it seems to use CPUs only and the GPU is dead quiet (verified using nvidia-smi-l1)

I also have enable: true (below). So not sure what I am doing wrong.

gpu:
  enable: true
  cache_size: 1GB
  gpu_search_threshold: 1000
  search_devices:
    - gpu0
  build_index_devices:
    - gpu0

[shiyu22]

Hi,

When you set gpu.enable=true, Milvus will use the GPU to build the index.

And the gpu_search_threshold parameter is related to the search processing, if nq ≥ gpu_search_threshold, the search will be executed on GPUs only.
And if nq < gpu_search_threshold, the search will be executed on both CPUs and GPUs.