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

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To optimize the operation of the Face detector VL on GPU, Configuring Face detection (VL)), do the following:

Request EID and ProductID from technical support

1. Stop the server (see Stop the server).
   

   Note
   title Attention!

EID and ProductID are linked with the MAC address of the Server. If the MAC address changes, you need to request EID and ProductID again.

2. Open the following file in a text editor: C:\Program Files\Common Files\AxxonSoft\DetectorPack\VLSdk\gpu\data\license.conf.

3. Enter the received EID and ProductID.

   Code Block
   <param name="EID" type="Value::String" text="received EID"/> <param name="ProductID" type="Value::String" text="received ProductID"/>

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4. Save the file: C:\Program Files\Common Files\AxxonSoft\DetectorPack\VLSdk\gpu\data\license.conf.
5. In the command line, run the following file as administrator: C:\Program Files\Common Files\AxxonSoft\DetectorPack\VLSdk\gpu\FingerprintViewer.exe. You will receive the FingerPrint data.
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Go to the website.

Note
title Attention!
If you fail to log in to the website, please contact technical support.

6. If the system uses the software that is running on the GPU, you must stop its operation.

7. Create the GPU_CACHE_DIR system variable (see Creating system variable). In the Variable value field, 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 detectors and neural networks.
   

8. Run the command line as administrator.

9. Starting with Detector Pack 3.14:

   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\VlFaceGpuCacheGenerator.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\VlFaceGpuCacheGenerator.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.
      

10. Log in using the received EID.
11. Fill in the user registration data.
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12. Click the Save button .
13. Click the Activate button to activate the license.
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14. In the Activatee Email Address, specify the email address to confirm the license activation. The licenseFile.v2c file with license data will be sent to the specified email address.
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15. In the Device FingerPrint field, specify the FingerPrint data.
16. Click the Activate button.
Place the downloaded licenseFile.v2c file on the Server in the folder:
17. For Detector Pack 3.13 and older:
    1. In the command line, enter the
18. 1. C:\Program Files\Common Files\AxxonSoft\DetectorPack\
VLSdk\.
19. Make sure the license is successfully activated.
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Face detection (VL) license is activated.

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If the Server is connected to the Internet, the license will be checked automatically on the license server.

If the Server doesn't have an Internet connection, do the following:

1. Do steps 2–5, 14 on the Server where the license will be used.
2. Do steps 1, 6–13, 15 on any computer connected to the Internet.
3. Click the View License button.
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4. Download the license file by clicking the Save To File button.
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1. 1. VlFaceGpuCacheGenerator.exe query to call the utility.

   2. Press Enter.

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

   4. Press Enter.

   5. If you want to change the resolution of the video stream:

      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, 3840x2160 2688x1520. The GPU uses the default 1920x1080 video stream resolution. If you change the resolution of the video stream from 1920x1080 and higher, it increases the percentage of face detection.

2. 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.
   

Optimizing the operation of the Face detector Vl on the GPU is complete

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