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The VA Face Recognition Pack add-on (see see Installing DetectorPack add-ons) includes a utility that allows that allows you to create GPU neural network caches without using Axxon One.  The The presence of the cache speeds up the initialization, optimizes video memory consumption, and ensures the start and correct operation of the Face Detection VA on GPUdetector VA on the GPU.

To optimize the operation of the of the Face Detection detector VA on GPU, do the following:

1. Stop the

Server

2. server (see

Shutting down a Server

3. Stop the server).
   

   Note
   title Attention!
   If the system

has

4. uses the software that is running on the GPU,

it is necessary to

5. you must stop its operation.

6. Create the GPU_CACHE_DIR system variable (see

Appendix 9.

7. Creating system variable). In the Variable value field,

specify the

8. specify the path to the cache location in Latin characters only. For example, D:\GPU_cache. The specified directory will store the cache for all used

detection tools

9. detectors and neural networks.
   

10. Run the command line as administrator.

11. Starting with Detector Pack 3.

To call the utility, enter in the command line:

12. 14:

    1. Call the utility, specifying the required video stream resolutions in the XxX or XxX XxX format via the -r key. In this case you must not further specify the video stream resolution.
       Example:
       

       Code Block
       language shell
       C:\Program Files\Common Files\AxxonSoft\DetectorPack\VaFaceGpuCacheGenerator.exe -r 3840x2160 2688x1520

       If you don't specify the resolution explicitly, the utility uses the default 1920x1080 resolution for creating the cache.
       

       Info
       title Note
       To get help information, you can enter the query in the command line: Code Block C:\Program Files\Common Files\AxxonSoft\DetectorPack\VaFaceGpuCacheGenerator.exe --help

    2. Press Enter.

    3. Specify the ID of the required GPU (see Selecting Nvidia GPU when configuring detectors).

    4. Press Enter. As a result, the process of creating the cache starts. If you get the "0" value, it means that the cache is created successfully.
       

13. For Detector Pack 3.13 and older:
    1. In the command line, enter the C:\Program Files\Common Files\AxxonSoft\DetectorPack\VaFaceGpuCacheGenerator.exe query to call the utility.

    2. Press Enter.

    3. Specify the ID of the required GPU (

see 

14. 1. see Selecting Nvidia GPU when configuring detectors).

    2. Press Enter.

    3. If you want to change the resolution of the video stream

for the Face Detection VA

15. 1. :

Enter y.
16. 1. 1. Enter y. If you don't want to change the resolution of the video stream, enter n. 

       2. Specify the required resolution. For example,

 3840×2160 2688×1520.

17. 1. 1. 3840x2160 2688x1520. The GPU uses the

default

18. 1. 1. default 1920x1080 video stream

resolutions

19. 1. 1. resolution.

Changing

20. 1. 1. If you change the resolution of the video stream from

1920*1080

21. 1. 1. 1920x1080 and higher, it increases the percentage of face detection

.
If you don't want to change the resolution of the video stream for the Face Detection VA, enter n

22. 1. 1. .

 

24. Press Enter.

The cache creation process starts. The cache creation is successful if the result value is "0"

25. As a result, the process of creating the cache starts. If you get the 0 value, it means that the cache is created successfully.
    

The cache must be recreated in the following cases:

...

Optimizing the operation of the of the Face Detection detector VA on the GPU is complete.

...

.