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Merge pull request #281 from zhelenskiy/dev

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Tests for large BigIntegers multiplication and power are provided.
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Alexander Nozik 2021-04-17 09:56:18 +03:00 committed by GitHub
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1 changed files with 29 additions and 1 deletions
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30
benchmarks/src/jvmMain/kotlin/space/kscience/kmath/benchmarks/BigIntBenchmark.kt
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@ -5,19 +5,27 @@
package space.kscience.kmath.benchmarks package space.kscience.kmath.benchmarks
import kotlinx.benchmark.Blackhole import kotlinx.benchmark.Blackhole
import org.openjdk.jmh.annotations.Benchmark import org.openjdk.jmh.annotations.Benchmark
import org.openjdk.jmh.annotations.Scope import org.openjdk.jmh.annotations.Scope
import org.openjdk.jmh.annotations.State import org.openjdk.jmh.annotations.State
import space.kscience.kmath.operations.BigInt
import space.kscience.kmath.operations.BigIntField import space.kscience.kmath.operations.BigIntField
import space.kscience.kmath.operations.JBigIntegerField import space.kscience.kmath.operations.JBigIntegerField
import space.kscience.kmath.operations.invoke import space.kscience.kmath.operations.invoke
private fun BigInt.pow(power: Int): BigInt = modPow(BigIntField.number(power), BigInt.ONE)
@State(Scope.Benchmark) @State(Scope.Benchmark)
internal class BigIntBenchmark { internal class BigIntBenchmark {
val kmNumber = BigIntField.number(Int.MAX_VALUE) val kmNumber = BigIntField.number(Int.MAX_VALUE)
val jvmNumber = JBigIntegerField.number(Int.MAX_VALUE) val jvmNumber = JBigIntegerField.number(Int.MAX_VALUE)
val largeKmNumber = BigIntField { number(11).pow(100_000) }
val largeJvmNumber = JBigIntegerField { number(11).pow(100_000) }
val bigExponent = 50_000
@Benchmark @Benchmark
fun kmAdd(blackhole: Blackhole) = BigIntField { fun kmAdd(blackhole: Blackhole) = BigIntField {
@ -34,8 +42,28 @@ internal class BigIntBenchmark {
blackhole.consume(kmNumber * kmNumber * kmNumber) blackhole.consume(kmNumber * kmNumber * kmNumber)
} }
@Benchmark
fun kmMultiplyLarge(blackhole: Blackhole) = BigIntField {
blackhole.consume(largeKmNumber*largeKmNumber)
}
@Benchmark @Benchmark
fun jvmMultiply(blackhole: Blackhole) = JBigIntegerField { fun jvmMultiply(blackhole: Blackhole) = JBigIntegerField {
blackhole.consume(jvmNumber * jvmNumber * jvmNumber) blackhole.consume(jvmNumber * jvmNumber * jvmNumber)
} }
}
@Benchmark
fun jvmMultiplyLarge(blackhole: Blackhole) = JBigIntegerField {
blackhole.consume(largeJvmNumber*largeJvmNumber)
}
@Benchmark
fun kmPower(blackhole: Blackhole) = BigIntField {
blackhole.consume(kmNumber.pow(bigExponent))
}
@Benchmark
fun jvmPower(blackhole: Blackhole) = JBigIntegerField {
blackhole.consume(jvmNumber.pow(bigExponent))
}
}