execute.java

Java Op Processor java vhdl processor

package jbe;

public class Execute {

	public static void perform(BenchMark bm) {

		int start, stop, cnt, time, overhead, minus;
		cnt = 512;		// run the benchmark loop 1024 times minimum
		time = 1;
		overhead = 0;
		minus = 0;

		LowLevel.msg("start");
		while (time<1000) {
			cnt <<= 1;
			if (cnt < 0) {
				break;
			}
			start = LowLevel.timeMillis();
			bm.test(cnt);
			stop = LowLevel.timeMillis();
			time = stop-start;
			start = LowLevel.timeMillis();
			bm.overhead(cnt);
			stop = LowLevel.timeMillis();
			overhead = stop-start;
/*
			start = LowLevel.timeMillis();
			bm.overheadMinus(cnt);
			stop = LowLevel.timeMillis();
			minus = stop-start;
*/
		}

		LowLevel.msg("time", time);
		LowLevel.msg("ohd", overhead);
//		LowLevel.msg("ohdm", minus);
		LowLevel.msg("cnt", cnt);
		time -= overhead;
//		time += minus;

		if (time<25 || cnt<0) {
			LowLevel.msg(bm.getName());
			LowLevel.msg(" no result");
			LowLevel.lf();
			return;
		}

		// result is test() per second
		int result;
		if (cnt>2000000) {		// check for overflow on cnt*1000
			result = cnt/time;
			if (result>2000000) {
				LowLevel.msg(bm.getName());
				LowLevel.msg(" no result");
				LowLevel.lf();
				return;
			}
			result *= 1000;
		} else {
			result = cnt*1000/time;
		}
		LowLevel.msg(bm.getName(), result);
		LowLevel.lf();
	}
}