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Use preferredInputLayout to select model for different backends #328

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Merged
Honry merged 1 commit into from
Sep 25, 2025
Merged

Use preferredInputLayout to select model for different backends #328

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11 changes: 4 additions & 7 deletions common/utils.js
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Original file line number Diff line number Diff line change
Expand Up @@ -432,13 +432,10 @@ export function permuteData(array, dims, axes) {
return [permutedData, shape];
}

export function getDefaultLayout(deviceType) {
if (deviceType.indexOf('cpu') != -1) {
return 'nhwc';
} else if (deviceType.indexOf('gpu') != -1 ||
deviceType.indexOf('npu') != -1) {
return 'nchw';
}
export async function getDefaultLayout(deviceType) {
const context = await navigator.ml.createContext({deviceType});
const limits = context.opSupportLimits();
return limits.preferredInputLayout ?? 'nchw';
}

/**
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7 changes: 3 additions & 4 deletions face_recognition/main.js
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Original file line number Diff line number Diff line change
Expand Up @@ -54,7 +54,8 @@ $('#backendBtns .btn').on('change', async (e) => {
if (inputType === 'camera') {
await stopCamRender();
}
layout = utils.getDefaultLayout($(e.target).attr('id'));
[backend, deviceType] = $(e.target).attr('id').split('_');
layout = await utils.getDefaultLayout(deviceType);
await main();
});

Expand Down Expand Up @@ -296,8 +297,6 @@ function constructNetObject(type) {
async function main() {
try {
if (fdModelName === '') return;
[backend, deviceType] =
$('input[name="backend"]:checked').attr('id').split('_');
ui.handleClick(disabledSelectors, true);
if (isFirstTimeLoad) $('#hint').hide();
const [numRuns, powerPreference] = utils.getUrlParams();
Expand Down Expand Up @@ -359,7 +358,7 @@ async function main() {
utils.sizeOfShape(frInputOptions.inputShape)));
for (let i = 0; i < numRuns; i++) {
if (numRuns > 1) {
// clear all predicted embeddings for benckmarking
// clear all predicted embeddings for benchmarking
targetEmbeddings = null;
searchEmbeddings = null;
}
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5 changes: 2 additions & 3 deletions facial_landmark_detection/main.js
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Original file line number Diff line number Diff line change
Expand Up @@ -50,7 +50,8 @@ $('#backendBtns .btn').on('change', async (e) => {
if (inputType === 'camera') {
await stopCamRender();
}
layout = utils.getDefaultLayout($(e.target).attr('id'));
[backend, deviceType] = $(e.target).attr('id').split('_');
layout = await utils.getDefaultLayout(deviceType);
await main();
});

Expand Down Expand Up @@ -232,8 +233,6 @@ function constructNetObject(type) {
async function main() {
try {
if (fdModelName === '') return;
[backend, deviceType] =
$('input[name="backend"]:checked').attr('id').split('_');
ui.handleClick(disabledSelectors, true);
if (isFirstTimeLoad) $('#hint').hide();
const [numRuns, powerPreference] = utils.getUrlParams();
Expand Down
9 changes: 4 additions & 5 deletions image_classification/main.js
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Original file line number Diff line number Diff line change
Expand Up @@ -98,18 +98,17 @@ $('#backendBtns .btn').on('change', async (e) => {
if (inputType === 'camera') {
await stopCamRender();
}
const backendId = $(e.target).attr('id');
layout = utils.getDefaultLayout(backendId);
[backend, deviceType] = backendId.split('_');
[backend, deviceType] = $(e.target).attr('id').split('_');
layout = await utils.getDefaultLayout(deviceType);
// Only show the supported models for each deviceType. Now fp16 nchw models
// are only supported on gpu/npu.
if (backendId == 'webnn_gpu') {
if (deviceType == 'gpu') {
ui.handleBtnUI('#float16Label', false);
ui.handleBtnUI('#float32Label', false);
ui.handleBtnUI('#uint8Label', true);
$('#float32').click();
utils.displayAvailableModels(modelList, modelIds, deviceType, dataType);
} else if (backendId == 'webnn_npu') {
} else if (deviceType == 'npu') {
ui.handleBtnUI('#float16Label', false);
ui.handleBtnUI('#float32Label', true);
ui.handleBtnUI('#uint8Label', true);
Expand Down
9 changes: 4 additions & 5 deletions object_detection/main.js
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Original file line number Diff line number Diff line change
Expand Up @@ -68,16 +68,15 @@ $('#backendBtns .btn').on('change', async (e) => {
if (inputType === 'camera') {
await stopCamRender();
}
const backendId = $(e.target).attr('id');
layout = utils.getDefaultLayout(backendId);
[backend, deviceType] = backendId.split('_');
[backend, deviceType] = $(e.target).attr('id').split('_');
layout = await utils.getDefaultLayout(deviceType);
// Only show the supported models for each deviceType. Now fp16 nchw models
// are only supported on gpu/npu.
if (backendId == 'webnn_gpu') {
if (deviceType == 'gpu') {
ui.handleBtnUI('#float16Label', false);
ui.handleBtnUI('#float32Label', false);
utils.displayAvailableModels(modelList, modelIds, deviceType, dataType);
} else if (backendId == 'webnn_npu') {
} else if (deviceType == 'npu') {
ui.handleBtnUI('#float16Label', false);
ui.handleBtnUI('#float32Label', true);
$('#float16').click();
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5 changes: 2 additions & 3 deletions semantic_segmentation/main.js
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Original file line number Diff line number Diff line change
Expand Up @@ -53,7 +53,8 @@ $('#backendBtns .btn').on('change', async (e) => {
if (inputType === 'camera') {
await stopCamRender();
}
layout = utils.getDefaultLayout($(e.target).attr('id'));
[backend, deviceType] = $(e.target).attr('id').split('_');
layout = await utils.getDefaultLayout(deviceType);
await main();
});

Expand Down Expand Up @@ -326,8 +327,6 @@ function constructNetObject(type) {
export async function main() {
try {
if (modelName === '') return;
[backend, deviceType] =
$('input[name="backend"]:checked').attr('id').split('_');
ui.handleClick(disabledSelectors, true);
if (isFirstTimeLoad) $('#hint').hide();
let start;
Expand Down
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