"use strict";
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/**
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* @license
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* Copyright 2018 Google Inc. All Rights Reserved.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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* =============================================================================
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*/
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Object.defineProperty(exports, "__esModule", { value: true });
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var util_1 = require("../util");
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var reduce_util_1 = require("./reduce_util");
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function segOpComputeOptimalWindowSize(inSize, numSegments) {
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var done = false;
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var res;
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if (inSize <= reduce_util_1.PARALLELIZE_THRESHOLD) {
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res = inSize;
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done = true;
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}
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else {
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res = util_1.nearestDivisor(inSize, Math.floor(Math.sqrt(inSize)));
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}
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while (!done) {
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if (res > numSegments || res === inSize) {
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done = true;
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}
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else {
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res = util_1.nearestDivisor(inSize, res + 1);
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}
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}
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return res;
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}
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exports.segOpComputeOptimalWindowSize = segOpComputeOptimalWindowSize;
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function computeOutShape(aShape, axis, numSegments) {
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var outShape = [];
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var rank = aShape.length;
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for (var dim = 0; dim < rank; dim++) {
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if (dim !== axis) {
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outShape.push(aShape[dim]);
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}
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else {
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outShape.push(numSegments);
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}
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}
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return outShape;
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}
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exports.computeOutShape = computeOutShape;
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function collectGatherOpShapeInfo(x, indices, axis) {
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var dimSize = x.shape[axis];
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var outputShape = [];
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var batchSize = 1;
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var sliceSize = 1;
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for (var i = 0; i < axis; i++) {
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outputShape.push(x.shape[i]);
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batchSize *= x.shape[i];
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}
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for (var i = 0; i < indices.rank; i++) {
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outputShape.push(indices.shape[i]);
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}
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for (var i = axis + 1; i < x.rank; i++) {
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outputShape.push(x.shape[i]);
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sliceSize *= x.shape[i];
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}
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return { batchSize: batchSize, sliceSize: sliceSize, dimSize: dimSize, outputShape: outputShape };
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}
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exports.collectGatherOpShapeInfo = collectGatherOpShapeInfo;
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//# sourceMappingURL=segment_util.js.map
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