com.simiacryptus.mindseye.layers.cudnn.BandReducerLayer Maven / Gradle / Ivy

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/*
 * Copyright (c) 2019 by Andrew Charneski.
 *
 * The author licenses this file to you 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
 *
 *   http://www.apache.org/licenses/LICENSE-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.simiacryptus.mindseye.layers.cudnn;

import com.google.gson.JsonObject;
import com.simiacryptus.mindseye.lang.*;
import com.simiacryptus.mindseye.lang.cudnn.CudaSettings;
import com.simiacryptus.mindseye.lang.cudnn.CudaSystem;
import com.simiacryptus.mindseye.lang.cudnn.MultiPrecision;
import com.simiacryptus.mindseye.lang.cudnn.Precision;
import com.simiacryptus.mindseye.layers.cudnn.PoolingLayer.PoolingMode;
import com.simiacryptus.ref.lang.RefUtil;
import com.simiacryptus.ref.wrappers.RefArrays;
import com.simiacryptus.ref.wrappers.RefList;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.util.Map;

@SuppressWarnings("serial")
public class BandReducerLayer extends LayerBase implements MultiPrecision {

  private PoolingLayer.PoolingMode mode = PoolingLayer.PoolingMode.Max;
  private Precision precision = CudaSettings.INSTANCE().getDefaultPrecision();
  private double alpha = 1.0;

  public BandReducerLayer() {
    super();
  }

  protected BandReducerLayer(@Nonnull final JsonObject json) {
    super(json);
    mode = RefUtil.get(RefArrays.stream(PoolingLayer.PoolingMode.values()).filter(i -> i.id == json.get("mode").getAsInt())
        .findFirst());
    precision = Precision.valueOf(json.get("precision").getAsString());
    alpha = json.get("alpha").getAsDouble();
  }

  public double getAlpha() {
    return alpha;
  }

  public void setAlpha(double alpha) {
    this.alpha = alpha;
  }

  @Nonnull
  public Layer getCompatibilityLayer() {
    throw new RuntimeException("Not Implemented");
  }

  public PoolingMode getMode() {
    return mode;
  }

  public void setMode(PoolingMode mode) {
    this.mode = mode;
  }

  @Override
  public Precision getPrecision() {
    return precision;
  }

  @Override
  public void setPrecision(final Precision precision) {
    this.precision = precision;
  }

  @Nonnull
  @SuppressWarnings("unused")
  public static BandReducerLayer fromJson(@Nonnull final JsonObject json, Map rs) {
    return new BandReducerLayer(json);
  }

  @Nullable
  @Override
  public Result eval(@Nullable final Result... inObj) {
    if (!CudaSystem.isEnabled()) {
      Layer compatibilityLayer = getCompatibilityLayer();
      Result result = compatibilityLayer.eval(inObj);
      compatibilityLayer.freeRef();
      return result;
    }
    assert inObj != null;
    final TensorList batch = Result.getData(inObj[0].addRef());
    @Nonnull final int[] inputSize = batch.getDimensions();
    batch.freeRef();
    PoolingLayer poolingLayer = new PoolingLayer();
    poolingLayer.setMode(mode);
    poolingLayer.setPrecision(precision);
    poolingLayer.setWindowX(inputSize[0]);
    poolingLayer.setWindowY(inputSize[1]);
    poolingLayer.setStrideX(inputSize[0]);
    poolingLayer.setStrideY(inputSize[1]);
    poolingLayer.setPaddingX(0);
    poolingLayer.setPaddingY(0);
    poolingLayer.setAlpha(alpha);
    Result result = poolingLayer.eval(inObj);
    poolingLayer.freeRef();
    return result;
  }

  @Nonnull
  @Override
  public JsonObject getJson(Map resources, DataSerializer dataSerializer) {
    @Nonnull final JsonObject json = super.getJsonStub();
    json.addProperty("alpha", alpha);
    json.addProperty("mode", mode.id);
    json.addProperty("precision", precision.name());
    return json;
  }

  @Nonnull
  @Override
  public RefList state() {
    return RefArrays.asList();
  }

  public @SuppressWarnings("unused")
  void _free() {
    super._free();
  }

  @Nonnull
  public @Override
  @SuppressWarnings("unused")
  BandReducerLayer addRef() {
    return (BandReducerLayer) super.addRef();
  }
}