Tensorflow NodeJS optimization

[daysleeperx]

Hi,

I am confused about the following message, when initializing MusicRNN model:

Hi there 👋. Looks like you are running TensorFlow.js in Node.js. To speed things up dramatically, install our node backend, which binds to TensorFlow C++, by running npm i @tensorflow/tfjs-node, or npm i @tensorflow/tfjs-node-gpu if you have CUDA. Then call require('@tensorflow/tfjs-node'); (-gpu suffix for CUDA) at the start of your program. Visit https://github.com/tensorflow/tfjs-node for more details.
============================
 MusicRNN  Initialized model in 0.00373s

and when I follow all the steps described in the message (installing @tensorflow/tfjs-node and adding following import const tf = require('@tensorflow/tfjs-node'); to the file with magenta code I get the following message at first:

Platform node has already been set. Overwriting the platform with [object Object].
Platform node has already been set. Overwriting the platform with [object Object].
cpu backend was already registered. Reusing existing backend factory.
The kernel '_FusedMatMul' for backend 'cpu' is already registered
The kernel 'Abs' for backend 'cpu' is already registered
The kernel 'Acos' for backend 'cpu' is already registered
The kernel 'Acosh' for backend 'cpu' is already registered
The kernel 'Add' for backend 'cpu' is already registered
The kernel 'AddN' for backend 'cpu' is already registered
The kernel 'All' for backend 'cpu' is already registered
The kernel 'Any' for backend 'cpu' is already registered
The kernel 'ArgMax' for backend 'cpu' is already registered
The kernel 'ArgMin' for backend 'cpu' is already registered
The kernel 'Asin' for backend 'cpu' is already registered
The kernel 'Asinh' for backend 'cpu' is already registered
The kernel 'Atan' for backend 'cpu' is already registered
The kernel 'Atan2' for backend 'cpu' is already registered
The kernel 'Atanh' for backend 'cpu' is already registered
The kernel 'AvgPool' for backend 'cpu' is already registered
The kernel 'AvgPool3D' for backend 'cpu' is already registered
The kernel 'AvgPool3DGrad' for backend 'cpu' is already registered
The kernel 'AvgPoolGrad' for backend 'cpu' is already registered
The kernel 'BatchMatMul' for backend 'cpu' is already registered
The kernel 'FusedBatchNorm' for backend 'cpu' is already registered
The kernel 'BatchToSpaceND' for backend 'cpu' is already registered
The kernel 'Bincount' for backend 'cpu' is already registered
The kernel 'Cast' for backend 'cpu' is already registered
The kernel 'Ceil' for backend 'cpu' is already registered
The kernel 'ClipByValue' for backend 'cpu' is already registered
The kernel 'Complex' for backend 'cpu' is already registered
The kernel 'ComplexAbs' for backend 'cpu' is already registered
The kernel 'Concat' for backend 'cpu' is already registered
The kernel 'Conv2D' for backend 'cpu' is already registered
The kernel 'Conv2DBackpropFilter' for backend 'cpu' is already registered
The kernel 'Conv2DBackpropInput' for backend 'cpu' is already registered
The kernel 'Conv3D' for backend 'cpu' is already registered
The kernel 'Conv3DBackpropFilterV2' for backend 'cpu' is already registered
The kernel 'Conv3DBackpropInputV2' for backend 'cpu' is already registered
The kernel 'Cos' for backend 'cpu' is already registered
The kernel 'Cosh' for backend 'cpu' is already registered
The kernel 'CropAndResize' for backend 'cpu' is already registered
The kernel 'Cumsum' for backend 'cpu' is already registered
The kernel 'DenseBincount' for backend 'cpu' is already registered
The kernel 'DepthToSpace' for backend 'cpu' is already registered
The kernel 'DepthwiseConv2dNative' for backend 'cpu' is already registered
The kernel 'DepthwiseConv2dNativeBackpropFilter' for backend 'cpu' is already registered
The kernel 'DepthwiseConv2dNativeBackpropInput' for backend 'cpu' is already registered
The kernel 'Diag' for backend 'cpu' is already registered
The kernel 'Dilation2D' for backend 'cpu' is already registered
The kernel 'Dilation2DBackpropFilter' for backend 'cpu' is already registered
The kernel 'Dilation2DBackpropInput' for backend 'cpu' is already registered
The kernel 'Elu' for backend 'cpu' is already registered
The kernel 'EluGrad' for backend 'cpu' is already registered
The kernel 'Equal' for backend 'cpu' is already registered
The kernel 'Erf' for backend 'cpu' is already registered
The kernel 'Exp' for backend 'cpu' is already registered
The kernel 'ExpandDims' for backend 'cpu' is already registered
The kernel 'Expm1' for backend 'cpu' is already registered
The kernel 'FFT' for backend 'cpu' is already registered
The kernel 'Fill' for backend 'cpu' is already registered
The kernel 'FlipLeftRight' for backend 'cpu' is already registered
The kernel 'Floor' for backend 'cpu' is already registered
The kernel 'FloorDiv' for backend 'cpu' is already registered
The kernel 'FusedConv2D' for backend 'cpu' is already registered
The kernel 'FusedDepthwiseConv2D' for backend 'cpu' is already registered
The kernel 'GatherNd' for backend 'cpu' is already registered
The kernel 'GatherV2' for backend 'cpu' is already registered
The kernel 'Greater' for backend 'cpu' is already registered
The kernel 'GreaterEqual' for backend 'cpu' is already registered
The kernel 'Identity' for backend 'cpu' is already registered
The kernel 'IFFT' for backend 'cpu' is already registered
The kernel 'Imag' for backend 'cpu' is already registered
The kernel 'IsFinite' for backend 'cpu' is already registered
The kernel 'IsInf' for backend 'cpu' is already registered
The kernel 'IsNan' for backend 'cpu' is already registered
The kernel 'LeakyRelu' for backend 'cpu' is already registered
The kernel 'Less' for backend 'cpu' is already registered
The kernel 'LessEqual' for backend 'cpu' is already registered
The kernel 'LinSpace' for backend 'cpu' is already registered
The kernel 'Log' for backend 'cpu' is already registered
The kernel 'Log1p' for backend 'cpu' is already registered
The kernel 'LogicalAnd' for backend 'cpu' is already registered
The kernel 'LogicalNot' for backend 'cpu' is already registered
The kernel 'LogicalOr' for backend 'cpu' is already registered
The kernel 'LRN' for backend 'cpu' is already registered
The kernel 'LRNGrad' for backend 'cpu' is already registered
The kernel 'Max' for backend 'cpu' is already registered
The kernel 'Maximum' for backend 'cpu' is already registered
The kernel 'MaxPool' for backend 'cpu' is already registered
The kernel 'MaxPool3D' for backend 'cpu' is already registered
The kernel 'MaxPool3DGrad' for backend 'cpu' is already registered
The kernel 'MaxPoolGrad' for backend 'cpu' is already registered
The kernel 'MaxPoolWithArgmax' for backend 'cpu' is already registered
The kernel 'Mean' for backend 'cpu' is already registered
The kernel 'Min' for backend 'cpu' is already registered
The kernel 'Minimum' for backend 'cpu' is already registered
The kernel 'MirrorPad' for backend 'cpu' is already registered
The kernel 'Mod' for backend 'cpu' is already registered
The kernel 'Multinomial' for backend 'cpu' is already registered
The kernel 'Multiply' for backend 'cpu' is already registered
The kernel 'Neg' for backend 'cpu' is already registered
The kernel 'NonMaxSuppressionV3' for backend 'cpu' is already registered
The kernel 'NonMaxSuppressionV4' for backend 'cpu' is already registered
The kernel 'NonMaxSuppressionV5' for backend 'cpu' is already registered
The kernel 'NotEqual' for backend 'cpu' is already registered
The kernel 'OneHot' for backend 'cpu' is already registered
The kernel 'OnesLike' for backend 'cpu' is already registered
The kernel 'Pack' for backend 'cpu' is already registered
The kernel 'PadV2' for backend 'cpu' is already registered
The kernel 'Pow' for backend 'cpu' is already registered
The kernel 'Prelu' for backend 'cpu' is already registered
The kernel 'Prod' for backend 'cpu' is already registered
The kernel 'Range' for backend 'cpu' is already registered
The kernel 'Real' for backend 'cpu' is already registered
The kernel 'RealDiv' for backend 'cpu' is already registered
The kernel 'Reciprocal' for backend 'cpu' is already registered
The kernel 'Relu' for backend 'cpu' is already registered
The kernel 'Relu6' for backend 'cpu' is already registered
The kernel 'Reshape' for backend 'cpu' is already registered
The kernel 'ResizeBilinear' for backend 'cpu' is already registered
The kernel 'ResizeBilinearGrad' for backend 'cpu' is already registered
The kernel 'ResizeNearestNeighbor' for backend 'cpu' is already registered
The kernel 'ResizeNearestNeighborGrad' for backend 'cpu' is already registered
The kernel 'Reverse' for backend 'cpu' is already registered
The kernel 'RotateWithOffset' for backend 'cpu' is already registered
The kernel 'Round' for backend 'cpu' is already registered
The kernel 'Rsqrt' for backend 'cpu' is already registered
The kernel 'ScatterNd' for backend 'cpu' is already registered
The kernel 'Select' for backend 'cpu' is already registered
The kernel 'Selu' for backend 'cpu' is already registered
The kernel 'Sigmoid' for backend 'cpu' is already registered
The kernel 'Sign' for backend 'cpu' is already registered
The kernel 'Sin' for backend 'cpu' is already registered
The kernel 'Sinh' for backend 'cpu' is already registered
The kernel 'Slice' for backend 'cpu' is already registered
The kernel 'Softmax' for backend 'cpu' is already registered
The kernel 'Softplus' for backend 'cpu' is already registered
The kernel 'SpaceToBatchND' for backend 'cpu' is already registered
The kernel 'SparseToDense' for backend 'cpu' is already registered
The kernel 'SplitV' for backend 'cpu' is already registered
The kernel 'Sqrt' for backend 'cpu' is already registered
The kernel 'Square' for backend 'cpu' is already registered
The kernel 'SquaredDifference' for backend 'cpu' is already registered
The kernel 'Step' for backend 'cpu' is already registered
The kernel 'StridedSlice' for backend 'cpu' is already registered
The kernel 'Sub' for backend 'cpu' is already registered
The kernel 'Sum' for backend 'cpu' is already registered
The kernel 'Tan' for backend 'cpu' is already registered
The kernel 'Tanh' for backend 'cpu' is already registered
The kernel 'Tile' for backend 'cpu' is already registered
The kernel 'TopK' for backend 'cpu' is already registered
The kernel 'Transpose' for backend 'cpu' is already registered
The kernel 'Unique' for backend 'cpu' is already registered
The kernel 'Unpack' for backend 'cpu' is already registered
The kernel 'UnsortedSegmentSum' for backend 'cpu' is already registered
The kernel 'ZerosLike' for backend 'cpu' is already registered
The kernel '_FusedMatMul' for backend 'webgl' is already registered
The kernel 'Abs' for backend 'webgl' is already registered
The kernel 'Acos' for backend 'webgl' is already registered
The kernel 'Acosh' for backend 'webgl' is already registered
The kernel 'Add' for backend 'webgl' is already registered
The kernel 'AddN' for backend 'webgl' is already registered
The kernel 'All' for backend 'webgl' is already registered
The kernel 'Any' for backend 'webgl' is already registered
The kernel 'ArgMax' for backend 'webgl' is already registered
The kernel 'ArgMin' for backend 'webgl' is already registered
The kernel 'Asin' for backend 'webgl' is already registered
The kernel 'Asinh' for backend 'webgl' is already registered
The kernel 'Atan' for backend 'webgl' is already registered
The kernel 'Atan2' for backend 'webgl' is already registered
The kernel 'Atanh' for backend 'webgl' is already registered
The kernel 'AvgPool' for backend 'webgl' is already registered
The kernel 'AvgPool3D' for backend 'webgl' is already registered
The kernel 'AvgPool3DGrad' for backend 'webgl' is already registered
The kernel 'AvgPoolGrad' for backend 'webgl' is already registered
The kernel 'BatchMatMul' for backend 'webgl' is already registered
The kernel 'FusedBatchNorm' for backend 'webgl' is already registered
The kernel 'BatchToSpaceND' for backend 'webgl' is already registered
The kernel 'Bincount' for backend 'webgl' is already registered
The kernel 'Cast' for backend 'webgl' is already registered
The kernel 'Ceil' for backend 'webgl' is already registered
The kernel 'ClipByValue' for backend 'webgl' is already registered
The kernel 'Complex' for backend 'webgl' is already registered
The kernel 'ComplexAbs' for backend 'webgl' is already registered
The kernel 'Concat' for backend 'webgl' is already registered
The kernel 'Conv2D' for backend 'webgl' is already registered
The kernel 'Conv2DBackpropFilter' for backend 'webgl' is already registered
The kernel 'Conv2DBackpropInput' for backend 'webgl' is already registered
The kernel 'Conv3D' for backend 'webgl' is already registered
The kernel 'Conv3DBackpropFilterV2' for backend 'webgl' is already registered
The kernel 'Conv3DBackpropInputV2' for backend 'webgl' is already registered
The kernel 'Cos' for backend 'webgl' is already registered
The kernel 'Cosh' for backend 'webgl' is already registered
The kernel 'CropAndResize' for backend 'webgl' is already registered
The kernel 'Cumsum' for backend 'webgl' is already registered
The kernel 'DenseBincount' for backend 'webgl' is already registered
The kernel 'DepthToSpace' for backend 'webgl' is already registered
The kernel 'DepthwiseConv2dNative' for backend 'webgl' is already registered
The kernel 'DepthwiseConv2dNativeBackpropFilter' for backend 'webgl' is already registered
The kernel 'DepthwiseConv2dNativeBackpropInput' for backend 'webgl' is already registered
The kernel 'Diag' for backend 'webgl' is already registered
The kernel 'Dilation2D' for backend 'webgl' is already registered
The kernel 'Elu' for backend 'webgl' is already registered
The kernel 'EluGrad' for backend 'webgl' is already registered
The kernel 'Equal' for backend 'webgl' is already registered
The kernel 'Erf' for backend 'webgl' is already registered
The kernel 'Exp' for backend 'webgl' is already registered
The kernel 'ExpandDims' for backend 'webgl' is already registered
The kernel 'Expm1' for backend 'webgl' is already registered
The kernel 'FFT' for backend 'webgl' is already registered
The kernel 'Fill' for backend 'webgl' is already registered
The kernel 'FlipLeftRight' for backend 'webgl' is already registered
The kernel 'Floor' for backend 'webgl' is already registered
The kernel 'FloorDiv' for backend 'webgl' is already registered
The kernel 'FromPixels' for backend 'webgl' is already registered
The kernel 'FusedConv2D' for backend 'webgl' is already registered
The kernel 'FusedDepthwiseConv2D' for backend 'webgl' is already registered
The kernel 'GatherNd' for backend 'webgl' is already registered
The kernel 'GatherV2' for backend 'webgl' is already registered
The kernel 'Greater' for backend 'webgl' is already registered
The kernel 'GreaterEqual' for backend 'webgl' is already registered
The kernel 'Identity' for backend 'webgl' is already registered
The kernel 'IFFT' for backend 'webgl' is already registered
The kernel 'Imag' for backend 'webgl' is already registered
The kernel 'IsFinite' for backend 'webgl' is already registered
The kernel 'IsInf' for backend 'webgl' is already registered
The kernel 'IsNan' for backend 'webgl' is already registered
The kernel 'LeakyRelu' for backend 'webgl' is already registered
The kernel 'Less' for backend 'webgl' is already registered
The kernel 'LessEqual' for backend 'webgl' is already registered
The kernel 'LinSpace' for backend 'webgl' is already registered
The kernel 'Log' for backend 'webgl' is already registered
The kernel 'Log1p' for backend 'webgl' is already registered
The kernel 'LogicalAnd' for backend 'webgl' is already registered
The kernel 'LogicalNot' for backend 'webgl' is already registered
The kernel 'LogicalOr' for backend 'webgl' is already registered
The kernel 'LRN' for backend 'webgl' is already registered
The kernel 'LRNGrad' for backend 'webgl' is already registered
The kernel 'Max' for backend 'webgl' is already registered
The kernel 'Maximum' for backend 'webgl' is already registered
The kernel 'MaxPool' for backend 'webgl' is already registered
The kernel 'MaxPool3D' for backend 'webgl' is already registered
The kernel 'MaxPool3DGrad' for backend 'webgl' is already registered
The kernel 'MaxPoolGrad' for backend 'webgl' is already registered
The kernel 'MaxPoolWithArgmax' for backend 'webgl' is already registered
The kernel 'Mean' for backend 'webgl' is already registered
The kernel 'Min' for backend 'webgl' is already registered
The kernel 'Minimum' for backend 'webgl' is already registered
The kernel 'MirrorPad' for backend 'webgl' is already registered
The kernel 'Mod' for backend 'webgl' is already registered
The kernel 'Multinomial' for backend 'webgl' is already registered
The kernel 'Multiply' for backend 'webgl' is already registered
The kernel 'Neg' for backend 'webgl' is already registered
The kernel 'NonMaxSuppressionV3' for backend 'webgl' is already registered
The kernel 'NonMaxSuppressionV4' for backend 'webgl' is already registered
The kernel 'NonMaxSuppressionV5' for backend 'webgl' is already registered
The kernel 'NotEqual' for backend 'webgl' is already registered
The kernel 'OneHot' for backend 'webgl' is already registered
The kernel 'OnesLike' for backend 'webgl' is already registered
The kernel 'Pack' for backend 'webgl' is already registered
The kernel 'PadV2' for backend 'webgl' is already registered
The kernel 'Pow' for backend 'webgl' is already registered
The kernel 'Prelu' for backend 'webgl' is already registered
The kernel 'Prod' for backend 'webgl' is already registered
The kernel 'Range' for backend 'webgl' is already registered
The kernel 'Real' for backend 'webgl' is already registered
The kernel 'RealDiv' for backend 'webgl' is already registered
The kernel 'Reciprocal' for backend 'webgl' is already registered
The kernel 'Relu' for backend 'webgl' is already registered
The kernel 'Relu6' for backend 'webgl' is already registered
The kernel 'Reshape' for backend 'webgl' is already registered
The kernel 'ResizeBilinear' for backend 'webgl' is already registered
The kernel 'ResizeBilinearGrad' for backend 'webgl' is already registered
The kernel 'ResizeNearestNeighbor' for backend 'webgl' is already registered
The kernel 'ResizeNearestNeighborGrad' for backend 'webgl' is already registered
The kernel 'Reverse' for backend 'webgl' is already registered
The kernel 'RotateWithOffset' for backend 'webgl' is already registered
The kernel 'Round' for backend 'webgl' is already registered
The kernel 'Rsqrt' for backend 'webgl' is already registered
The kernel 'ScatterNd' for backend 'webgl' is already registered
The kernel 'Select' for backend 'webgl' is already registered
The kernel 'Selu' for backend 'webgl' is already registered
The kernel 'Sigmoid' for backend 'webgl' is already registered
The kernel 'Sign' for backend 'webgl' is already registered
The kernel 'Sin' for backend 'webgl' is already registered
The kernel 'Sinh' for backend 'webgl' is already registered
The kernel 'Slice' for backend 'webgl' is already registered
The kernel 'Softmax' for backend 'webgl' is already registered
The kernel 'Softplus' for backend 'webgl' is already registered
The kernel 'SpaceToBatchND' for backend 'webgl' is already registered
The kernel 'SparseToDense' for backend 'webgl' is already registered
The kernel 'SplitV' for backend 'webgl' is already registered
The kernel 'Sqrt' for backend 'webgl' is already registered
The kernel 'Square' for backend 'webgl' is already registered
The kernel 'SquaredDifference' for backend 'webgl' is already registered
The kernel 'Step' for backend 'webgl' is already registered
The kernel 'StridedSlice' for backend 'webgl' is already registered
The kernel 'Sub' for backend 'webgl' is already registered
The kernel 'Sum' for backend 'webgl' is already registered
The kernel 'Tan' for backend 'webgl' is already registered
The kernel 'Tanh' for backend 'webgl' is already registered
The kernel 'Tile' for backend 'webgl' is already registered
The kernel 'TopK' for backend 'webgl' is already registered
The kernel 'Transpose' for backend 'webgl' is already registered
The kernel 'Unique' for backend 'webgl' is already registered
The kernel 'Unpack' for backend 'webgl' is already registered
The kernel 'UnsortedSegmentSum' for backend 'webgl' is already registered
The kernel 'ZerosLike' for backend 'webgl' is already registered

And the following error when running the model:

/Users/viktorpavlov/repos/Markov-Chain-Music-Demo/node_modules/@tensorflow/tfjs-node/dist/nodejs_kernel_backend.js:153
       return tf.engine().makeTensorFromTensorInfo(tensorInfo);
                          ^

TypeError: tf.engine(...).makeTensorFromTensorInfo is not a function
   at NodeJSKernelBackend.createOutputTensor (/Users/viktorpavlov/repos/Markov-Chain-Music-Demo/node_modules/@tensorflow/tfjs-node/dist/nodejs_kernel_backend.js:153:28)
   at NodeJSKernelBackend.executeSingleOutput (/Users/viktorpavlov/repos/Markov-Chain-Music-Demo/node_modules/@tensorflow/tfjs-node/dist/nodejs_kernel_backend.js:215:21)
   at Object.kernelFunc (/Users/viktorpavlov/repos/Markov-Chain-Music-Demo/node_modules/@tensorflow/tfjs-node/dist/kernels/OneHot.js:36:27)
   at kernelFunc (/Users/viktorpavlov/repos/Markov-Chain-Music-Demo/node_modules/@magenta/music/node_modules/@tensorflow/tfjs-core/dist/tf-core.node.js:3473:30)
   at /Users/viktorpavlov/repos/Markov-Chain-Music-Demo/node_modules/@magenta/music/node_modules/@tensorflow/tfjs-core/dist/tf-core.node.js:3537:27
   at Engine.scopedRun (/Users/viktorpavlov/repos/Markov-Chain-Music-Demo/node_modules/@magenta/music/node_modules/@tensorflow/tfjs-core/dist/tf-core.node.js:3357:23)
   at Engine.runKernelFunc (/Users/viktorpavlov/repos/Markov-Chain-Music-Demo/node_modules/@magenta/music/node_modules/@tensorflow/tfjs-core/dist/tf-core.node.js:3535:14)
   at Engine.runKernel (/Users/viktorpavlov/repos/Markov-Chain-Music-Demo/node_modules/@magenta/music/node_modules/@tensorflow/tfjs-core/dist/tf-core.node.js:3415:21)
   at oneHot_ (/Users/viktorpavlov/repos/Markov-Chain-Music-Demo/node_modules/@magenta/music/node_modules/@tensorflow/tfjs-core/dist/tf-core.node.js:7569:19)
   at Object.oneHot__op (/Users/viktorpavlov/repos/Markov-Chain-Music-Demo/node_modules/@magenta/music/node_modules/@tensorflow/tfjs-core/dist/tf-core.node.js:4311:29)

Versions:

"@magenta/music": "^1.23.1",
"@tensorflow/tfjs-node": "^3.18.0",

Node version v16.13.2
Apple M1 Pro, macOS Monterey v12.0.1