Package org.apfloat.samples
Class PiParallel
- java.lang.Object
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- org.apfloat.samples.Pi
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- org.apfloat.samples.PiParallel
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- Direct Known Subclasses:
PiDistributed
public class PiParallel extends Pi
Calculates pi using multiple threads in parallel.Note that to get any performance gain from running many threads in parallel, the JVM must be executing native threads. If the JVM is running in green threads mode, there is no advantage of having multiple threads, as the JVM will in fact execute just one thread and divide its time to multiple simulated threads.
- Version:
- 1.9.0
- Author:
- Mikko Tommila
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Nested Class Summary
Nested Classes Modifier and Type Class Description protected static class
PiParallel.ParallelBinarySplittingPiCalculator
Parallel version of the binary splitting algorithm.static class
PiParallel.ParallelChudnovskyPiCalculator
Class for calculating pi using the parallel Chudnovskys' binary splitting algorithm.static class
PiParallel.ParallelRamanujanPiCalculator
Class for calculating pi using the parallel Ramanujan's binary splitting algorithm.protected static class
PiParallel.ThreadLimitedOperation<T>
Class to execute operations while settingApfloatContext.setNumberOfProcessors(int)
to some value.-
Nested classes/interfaces inherited from class org.apfloat.samples.Pi
Pi.AbstractBinarySplittingSeries, Pi.BinarySplittingPiCalculator, Pi.BinarySplittingProgressIndicator, Pi.BinarySplittingSeries, Pi.BorweinPiCalculator, Pi.ChudnovskyBinarySplittingSeries, Pi.ChudnovskyPiCalculator, Pi.GaussLegendrePiCalculator, Pi.RamanujanBinarySplittingSeries, Pi.RamanujanPiCalculator
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Method Detail
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main
public static void main(String[] args) throws IOException, ApfloatRuntimeException
Command-line entry point.- Parameters:
args
- Command-line parameters.- Throws:
IOException
- In case writing the output fails.ApfloatRuntimeException
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