How to enable Neural Compute Stick in VMs created by Qemu&KVM?

idata · ‎12-25-2018

hi,

I am using Intel Compute Stick 2. The stick works well on the host. My target is to use the stick in my VM which was created by KVM/QEMU. My host and guest OS are both ubuntu 16.04. By usb passthrough, I already passed the stick to my guest os.

When run "lsusb" in the guest, I can see

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 03e7:2485
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

I tried the sample app "hello_ncs_cpp" included in ncsdk. I got below error

making run
cd cpp; ./hello_ncs_cpp; cd ..
W: [         0] ncDeviceOpen:528        ncDeviceOpen() XLinkBootRemote returned error 3

Error- ncDeviceOpen failed
    ncStatus value: -2

Anybody has some experiences on this? Many thanks!

idata · ‎12-25-2018

I just learned that NCSDK doesn't support NCS2, and OpenVINO does support.

I tried OpenVINO R4, still not work. When I ran a openvino demo. I got below error

 `[ INFO ] Loading model to the plugin`
     E: [ncAPI] [         0] ncDeviceOpen:668        failed to find device

     [ ERROR ] Can not init USB device: NC_DEVICE_NOT_FOUND

A strange phenomenon is at host side

by dmesg, I found the stick was unplugged and plunged again.

by lsusb, I found the usb device was change from "ID 03e7:2485" to "ID 03e7:f63b"

who know the reasons?