// create the benchmark and execute it.
public static Benchmark execBenchmark(String[] algLines) throws Exception {
String algText = algLinesToText(algLines);
logTstLogic(algText);
Benchmark benchmark = new Benchmark(new StringReader(algText));
benchmark.execute();
return benchmark;
}
// catenate alg lines to make the alg text
private static String algLinesToText(String[] algLines) {