2021-06-05 08:44:02 +03:00
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# Module kmath-jafama
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Jafama based implementation of DoubleField of kmath-operations.
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- JafamaDoubleField : DoubleField implementation using FastMath
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- StrictJafamaDoubleField - DoubleField implementation using StrictFastMath
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## Examples
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Different Operations on DoubleField
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```kotlin
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package space.kscience.kmath.jafama
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import net.jafama.FastMath
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fun main(){
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val a = JafamaDoubleField.number(2.0)
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val b = StrictJafamaDoubleField.power(FastMath.E,a)
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println(JafamaDoubleField.add(b,a))
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println(StrictJafamaDoubleField.ln(b))
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}
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```
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2021-06-08 16:58:34 +03:00
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## Benchmarks
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Comparing Operations on DoubleField and JafamaDoubleField
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```bash
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jvm: space.kscience.kmath.benchmarks.JafamaBenchmark.coreBench
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Warm-up 1: 242556635.528 ops/s
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Iteration 1: 236249893.335 ops/s
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Iteration 2: 294526940.968 ops/s
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Iteration 3: 295973752.533 ops/s
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Iteration 4: 296467676.763 ops/s
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Iteration 5: 295929441.421 ops/s
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283829541.004 ±(99.9%) 102456604.440 ops/s [Average]
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(min, avg, max) = (236249893.335, 283829541.004, 296467676.763), stdev = 26607654.808
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CI (99.9%): [181372936.564, 386286145.444] (assumes normal distribution)
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jvm: space.kscience.kmath.benchmarks.JafamaBenchmark.jafamaBench
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Warm-up 1: 234737640.196 ops/s
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Iteration 1: 231689614.905 ops/s
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Iteration 2: 296629612.909 ops/s
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Iteration 3: 297456237.453 ops/s
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Iteration 4: 296754794.513 ops/s
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Iteration 5: 293722557.848 ops/s
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283250563.526 ±(99.9%) 111125582.233 ops/s [Average]
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(min, avg, max) = (231689614.905, 283250563.526, 297456237.453), stdev = 28858960.811
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CI (99.9%): [172124981.293, 394376145.759] (assumes normal distribution)
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jvm: space.kscience.kmath.benchmarks.JafamaBenchmark.strictJafamaBench
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Warm-up 1: 234895701.589 ops/s
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Iteration 1: 236061284.195 ops/s
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Iteration 2: 296894799.416 ops/s
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Iteration 3: 286852020.677 ops/s
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Iteration 4: 284021863.614 ops/s
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Iteration 5: 284404358.656 ops/s
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277646865.312 ±(99.9%) 91748868.927 ops/s [Average]
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(min, avg, max) = (236061284.195, 277646865.312, 296894799.416), stdev = 23826889.899
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CI (99.9%): [185897996.385, 369395734.239] (assumes normal distribution)
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```
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