src/main/java/org/apache/sysds/utils/DMLCompressionStatistics.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF 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 org.apache.sysds.utils;

import java.util.List;

public class DMLCompressionStatistics {

	// Compute compressed size info
	private static double Phase1 = 0.0;
	// Co-code columns
	private static double Phase2 = 0.0;
	// Compress the columns
	private static double Phase3 = 0.0;
	// Share resources
	private static double Phase4 = 0.0;
	// Cleanup
	private static double Phase5 = 0.0;

	private static int DecompressSTCount = 0;
	private static double DecompressST = 0.0;
	private static int DecompressMTCount = 0;
	private static double DecompressMT = 0.0;

	public static void addCompressionTimes(List<Double> times) {
		Phase1 += times.get(0);
		Phase2 += times.get(1);
		Phase3 += times.get(2);
		Phase4 += times.get(3);
		Phase5 += times.get(4);
	}

	public static void addDecompressTime(double time, int threads) {
		if(threads == 1) {
			DecompressSTCount++;
			DecompressST += time;
		}
		else {
			DecompressMTCount++;
			DecompressMT += time;
		}
	}

	public static void display(StringBuilder sb) {
		sb.append(String.format(
			"CLA Compression Phases (classify, group, compress, share, clean) :\t%.3f/%.3f/%.3f/%.3f/%.3f\n",
			Phase1 / 1000,
			Phase2 / 1000,
			Phase3 / 1000,
			Phase4 / 1000,
			Phase5 / 1000));
		sb.append(String.format("Decompression Counts (Single , Multi) thread                     :\t%d/%d\n",
			DecompressSTCount,
			DecompressMTCount));
		sb.append(String.format("Dedicated Decompression Time (Single , Multi) thread             :\t%.3f/%.3f\n",
			DecompressST / 1000,
			DecompressMT / 1000));
	}
}