99 lines
2.6 KiB
Java
99 lines
2.6 KiB
Java
/*
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* Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package org.openjdk.bench.java.math;
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import java.util.Random;
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import java.util.concurrent.TimeUnit;
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import org.openjdk.jmh.annotations.*;
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@OutputTimeUnit(TimeUnit.MILLISECONDS)
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@State(Scope.Thread)
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@Warmup(iterations = 5, time = 1)
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@Measurement(iterations = 5, time = 1)
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@Fork(value = 3)
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public class Fp16ConversionBenchmark {
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@Param({"2048"})
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public int size;
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public short[] f16in;
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public short[] f16out;
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public float[] fin;
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public float[] fout;
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public static short f16, s;
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public static float f;
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@Setup(Level.Trial)
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public void BmSetup() {
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int i = 0;
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Random r = new Random(1024);
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f16in = new short[size];
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f16out = new short[size];
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f16 = (short) r.nextInt();
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for (; i < size; i++) {
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f16in[i] = Float.floatToFloat16(r.nextFloat());;
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}
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fin = new float[size];
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fout = new float[size];
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f = r.nextFloat();
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i = 0;
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for (; i < size; i++) {
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fin[i] = Float.float16ToFloat((short)r.nextInt());
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}
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}
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@Benchmark
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public short[] floatToFloat16() {
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for (int i = 0; i < fin.length; i++) {
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f16out[i] = Float.floatToFloat16(fin[i]);
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}
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return f16out;
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}
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@Benchmark
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public float[] float16ToFloat() {
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for (int i = 0; i < f16in.length; i++) {
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fout[i] = Float.float16ToFloat(f16in[i]);
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}
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return fout;
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}
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@Benchmark
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public float float16ToFloatMemory() {
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f = Float.float16ToFloat(f16);
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return f;
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}
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@Benchmark
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public short floatToFloat16Memory() {
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s = Float.floatToFloat16(f);
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return s;
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}
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}
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