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/*
* Copyright (C) 2021 Linaro Limited. 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
*
* 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 benchmarks.dacapo;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import org.dacapo.harness.Benchmark;
import org.dacapo.harness.Callback;
import org.dacapo.harness.CommandLineArgs;
import org.dacapo.parser.Config;
public class BenchBase<T extends Benchmark> {
private T bench;
private CommandLineArgs args;
private Callback callback;
public BenchBase(String configFileName, String sizeArg) {
try {
InputStream stream = new FileInputStream(new File("resources/dacapo/cnf/"+configFileName));
Config config = Config.parse(stream);
File scratch = new File("./resources/");
String[] cmdArgs = {"-s", sizeArg};
this.args = new CommandLineArgs(cmdArgs);
this.callback = new Callback(args);
callback.init(config);
this.bench = createBench("resources/dacapo/", config, scratch);
// First call to run should trigger call to prepare.
// We want to call it here instead of timeBenchmark to avoid
// including it in total time.
this.bench.run(callback, args.getSize());
}
catch (Exception e) {
System.out.println("Benchmark has failed to initialize!");
e.printStackTrace();
}
}
public void timeBenchmark(int iters) {
try {
for (int i = 0; i<iters; i++) {
bench.run(callback, args.getSize());
}
}
catch (Exception e) {
System.out.println("Benchmark has failed to run!");
e.printStackTrace();
}
}
@SuppressWarnings ("unchecked")
public Class<T> getTypeParameterClass()
{
Type type = getClass().getGenericSuperclass();
ParameterizedType paramType = (ParameterizedType) type;
return (Class<T>) paramType.getActualTypeArguments()[0];
}
public T createBench(String pathToResources, Config config, File scratch) {
T instance = null;
try {
Class<T> klass = getTypeParameterClass();
instance = klass.getDeclaredConstructor(String.class, Config.class, File.class)
.newInstance(pathToResources, config, scratch);
} catch (Exception e) {
System.out.println("Failed to create an instance of benchmark");
e.printStackTrace();
}
return instance;
}
}
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