Pi Sample

Parallel version of calculating π by numerical integration.

Build

To build the sample, run the following commands:

cmake <path_to_example>
cmake --build .

Run

Predefined Make Targets

• make run_pi - executes the example with predefined parameters
• make perf_run_pi - executes the example with suggested parameters to measure the oneTBB performance

Application Parameters

You can use the following application parameters:

pi [n-of-threads=value] [n-of-intervals=value] [silent] [-h] [n-of-threads [n-of-intervals]]

• -h - prints the help for command-line options.
• n-of-threads - the number of threads to use. This number is specified in the low[:high] range format, where both low and, optionally, high are non-negative integers. You can also use auto to let the system choose a default number of threads suitable for the platform.
• n-of-intervals - the number of intervals to subdivide into. Must be a positive integer.
• silent - no output except the elapsed time.