Hailo Emulation Failing

General
1

Has anyone been able to successfully run the emulator? I am getting a similar result to @user59 in this topic.

Basically, after build hailortcli with HAILO_BUILD_EMULATOR set to ON it fails with a HAILO_DRIVER_NOT_INSTALLED(64) error.

Steps to reproduce:

  1. On a clean ubuntu 22.04 system with no physical hailo card installed git clone the latest release: git clone --branch v4.21.0 https://github.com/hailo-ai/hailort.git (note the master branch seems to be broken - does not build)

  2. Run cmake with emulation set on: cmake -H. -Bbuild -DCMAKE_BUILD_TYPE=Release -DHAILO_BUILD_EMULATOR=ON -DHAILO_BUILD_EXAMPLES=ON

  3. Install hailortcli with: sudo cmake --build build --config release --target install

  4. Run hailortcli scan or execute any of the examples e.g. ./build/hailort/libhailort/examples/cpp/vstreams_example/cpp_vstreams_example

Result is:

[HailoRT] [error] Can't find hailort driver class. Can happen if the driver is not installed, if the kernel was updated or on some driver failure (then read driver dmesg log)
[HailoRT] [error] CHECK_SUCCESS failed with status=HAILO_DRIVER_NOT_INSTALLED(64) - Failed listing hailo devices
[HailoRT] [error] CHECK_SUCCESS failed with status=HAILO_DRIVER_NOT_INSTALLED(64)
[HailoRT] [error] CHECK_SUCCESS failed with status=HAILO_DRIVER_NOT_INSTALLED(64)
[HailoRT] [error] CHECK_SUCCESS failed with status=HAILO_DRIVER_NOT_INSTALLED(64)
[HailoRT] [error] CHECK_SUCCESS failed with status=HAILO_DRIVER_NOT_INSTALLED(64)
Failed create vdevice, status = 64

Anyone manage to get either CPU or GPU emulation working?

We want to be able to run CI release tests for Hailo without our build systems needing to have a physical chip in them, which is not practical in some cases.

2

Also worth noting I tried to rebuild the hailo drivers from source with the “for internal use only” EMULATION flag set. This gets you a little bit further: instead of the driver error it now gets an HAILO_OUT_OF_PHYSICAL_DEVICES error …