Tensorflow.js tf.enableProdMode()用法及代碼示例

Tensorflow.js是由Google開發的開源庫，用於在瀏覽器或節點環境中運行機器學習模型以及深度學習神經網絡。

.enableProdMode() 函數用於啟用生產模式，該生產模式停用支持生產的精確性限製。

用法:

tf.enableProdMode()

參數：該方法不持有任何參數。

返回值：它返回void。

範例1：

// Importing the tensorflow.js library
import * as tf from "@tensorflow/tfjs"
  
// Calling enableProdMode() method
await tf.enableProdMode();
  
// Setting debug mode of the
// environment
tf.env().set('DEBUG', false);
  
// Printing output
console.log(tf.env().flags);

輸出：

{
  "IS_BROWSER":true,
  "IS_NODE":false,
  "DEBUG":false,
  "CPU_HANDOFF_SIZE_THRESHOLD":128,
  "PROD":true,
  "WEBGL_VERSION":2,
  "HAS_WEBGL":true,
  "WEBGL_CHECK_NUMERICAL_PROBLEMS":false,
  "IS_TEST":false,
  "WEBGL_CPU_FORWARD":true,
  "WEBGL_MAX_TEXTURE_SIZE":16384,
  "WEBGL_FORCE_F16_TEXTURES":true,
  "WEBGL_RENDER_FLOAT32_CAPABLE":true,
  "WEBGL_RENDER_FLOAT32_ENABLED":true,
  "WEBGL_FLUSH_THRESHOLD":-1,
  "WEBGL_PACK":true,
  "WEBGL_LAZILY_UNPACK":true,
  "WEBGL_DELETE_TEXTURE_THRESHOLD":-1,
  "WEBGL_PACK_BINARY_OPERATIONS":true,
  "WEBGL_USE_SHAPES_UNIFORMS":false,
  "WEBGL_PACK_UNARY_OPERATIONS":true,
  "WEBGL_DOWNLOAD_FLOAT_ENABLED":true,
  "WEBGL_CONV_IM2COL":true,
  "WEBGL_PACK_DEPTHWISECONV":true,
  "WEBGL_MAX_TEXTURES_IN_SHADER":16,
  "WEBGL_PACK_ARRAY_OPERATIONS":true
}

範例2：

// Importing the tensorflow.js library
import * as tf from "@tensorflow/tfjs"
  
// Calling enableProdMode() method
await tf.enableProdMode();
  
// Setting prod mode of the environment
tf.env().set("PROD", !0)
  
// Setting textures of the environment
tf.env().set('WEBGL_FORCE_F16_TEXTURES', false);
  
// Calling ready() method
await tf.ready();
  
// Printing output
console.log(tf.env().features);

輸出：

{
  "IS_BROWSER":true,
  "IS_NODE":false,
  "DEBUG":false,
  "CPU_HANDOFF_SIZE_THRESHOLD":128,
  "PROD":true,
  "WEBGL_VERSION":2,
  "HAS_WEBGL":true,
  "WEBGL_CHECK_NUMERICAL_PROBLEMS":false,
  "IS_TEST":false,
  "WEBGL_CPU_FORWARD":true,
  "WEBGL_MAX_TEXTURE_SIZE":16384,
  "WEBGL_FORCE_F16_TEXTURES":false,
  "WEBGL_RENDER_FLOAT32_CAPABLE":true,
  "WEBGL_RENDER_FLOAT32_ENABLED":true,
  "WEBGL_FLUSH_THRESHOLD":-1,
  "WEBGL_PACK":true,
  "WEBGL_LAZILY_UNPACK":true,
  "WEBGL_DELETE_TEXTURE_THRESHOLD":-1,
  "WEBGL_PACK_BINARY_OPERATIONS":true,
  "WEBGL_USE_SHAPES_UNIFORMS":false,
  "WEBGL_PACK_UNARY_OPERATIONS":true,
  "WEBGL_DOWNLOAD_FLOAT_ENABLED":true,
  "WEBGL_CONV_IM2COL":true,
  "WEBGL_PACK_DEPTHWISECONV":true,
  "WEBGL_MAX_TEXTURES_IN_SHADER":16,
  "WEBGL_PACK_ARRAY_OPERATIONS":true
}

參考： https://js.tensorflow.org/api/latest/#enableProdMode