I took the Java version of the Linpack benchmark optimized by Jonathan Hardwick and added further optimization to it.
Basically, some dead code and unused variables have been removed. Final qualifier has been added to some more methods. Removed superfluous operations (like addition of 0) and a non-required type conversion.
Just download the source code. Compile and run it.
The output generated by running the application should look like:
Mflops/s: 68.667 Time: 0.01 secs Norm Res: 1.43 Precision: 2.220446049250313E-16
For reference I include some values generated by running the application on various machines:
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