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README.JAVA.txt: trivial whitespace cleanup

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This commit was SVN r32539.
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Jeff Squyres 2014-08-15 17:05:24 +00:00
parent fabad95b8e
commit 7cc4a26262
1 changed files with 8 additions and 8 deletions
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README.JAVA.txt
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@ -10,7 +10,7 @@ CONTINUED DEVELOPER SUPPORT.
***************************************************************************
This version of Open MPI provides support for Java-based
MPI applications.
MPI applications.
The rest of this document provides step-by-step instructions on
building OMPI with Java bindings, and compiling and running
@ -33,7 +33,7 @@ for Open MPI Java bindings, but they were later totally rewritten.
============================================================================
Building Java Bindings
Building Java Bindings
If this software was obtained as a developer-level
checkout as opposed to a tarball, you will need to start your build by
@ -124,28 +124,28 @@ be invoked by all MPI Java applications. The following example illustrates
these concepts:
import mpi.*;
class ComputePi {
public static void main(String args[]) throws MPIException {
MPI.Init(args);
int rank = MPI.COMM_WORLD.getRank(),
size = MPI.COMM_WORLD.getSize(),
nint = 100; // Intervals.
double h = 1.0/(double)nint, sum = 0.0;
for(int i=rank+1; i<=nint; i+=size) {
double x = h * ((double)i - 0.5);
sum += (4.0 / (1.0 + x * x));
}
double sBuf[] = { h * sum },
rBuf[] = new double[1];
MPI.COMM_WORLD.reduce(sBuf, rBuf, 1, MPI.DOUBLE, MPI.SUM, 0);
if(rank == 0) System.out.println("PI: " + rBuf[0]);
MPI.Finalize();
}