com.tencent.angel.ml.matrix.psf.update.Diag.scala Maven / Gradle / Ivy

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/*
 * Tencent is pleased to support the open source community by making Angel available.
 *
 * Copyright (C) 2017-2018 THL A29 Limited, a Tencent company. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in 
 * compliance with the License. You may obtain a copy of the License at
 *
 * https://opensource.org/licenses/Apache-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 *
 */


package com.tencent.angel.ml.matrix.psf.update

import com.tencent.angel.ml.matrix.psf.update.enhance.FullUpdateFunc
import com.tencent.angel.ps.storage.vector._

/**
  * Convert a zero-matrix to a diagonal matrix
  */
class Diag(matrixId: Int, values: Array[Double]) extends FullUpdateFunc(matrixId, values) {
  def this() = this(-1, Array[Double]())

  override def doUpdate(rows: Array[ServerIntDoubleRow],
                        values: Array[Double]): Unit = {
    for (rowId <- rows.indices) {
      val row = rows(rowId)
      row.startWrite()
      try {
        row.set(row.getRowId, values(rowId))
      } finally {
        row.endWrite()
      }
    }
  }

  override def doUpdate(rows: Array[ServerIntFloatRow],
                        values: Array[Float]): Unit = {
    for (rowId <- rows.indices) {
      val row = rows(rowId)
      row.startWrite()
      try {
        row.set(row.getRowId, values(rowId))
      } finally {
        row.endWrite()
      }
    }
  }

  override def doUpdate(rows: Array[ServerIntLongRow],
                        values: Array[Long]): Unit = {
    for (rowId <- rows.indices) {
      val row = rows(rowId)
      row.startWrite()
      try {
        row.set(row.getRowId, values(rowId))
      } finally {
        row.endWrite()
      }
    }
  }

  override def doUpdate(rows: Array[ServerIntIntRow],
                        values: Array[Int]): Unit = {
    for (rowId <- rows.indices) {
      val row = rows(rowId)
      row.startWrite()
      try {
        row.set(row.getRowId, values(rowId))
      } finally {
        row.endWrite()
      }
    }
  }

}