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Super Pi benchmark

Super PI is a benchmark is used to benchmark the single thread floating point performance of CPUs.  To be exact, Super Pi tells how much time a processor takes to calculate value of pi to up to a specified number of digits after the decimal point. For example the Super Pi 1M result tells how much time processor takes to calculate the value of Pi  to 1 million digits after the decimal.

There are similar Super Pi 2M and Supper Pi 32M results and are used to describe the speed of a computer, especially for its processor.  A smaller number means faster processor. Usually a processor with higher clock  in the same series will take smaller time.

The Super Pi uses Gauss–Legendre algorithm.  The Super Pi is very common among the overclockers community to showcase how fast their system is.

Super Pi benchmark Criticism

Super Pi benchmark is more suitable for the single threaded processor with higher clock frequencies. The benchmark does not take into account the multi processing and multicore capability of the processors. The operating system’s capability to ulitize the multi processors reduces because of the data dependencies of the algorithm. Super Pi benchmark is heavily criticized for the fact that it does not reflect the real world multi processing, multi core capable modern processors.

Calculate the Super Pi result for your system.

It is easy to calculate the Super Pi benchmark result for your system ( and hence for the processor inside your system). All you have to do it  download the Super Pi software from

ftp://pi.super-computing.org/windows/super_pi.zip

Unzip the zipped file from your favorite unzipper and run the Super Pi program.  You need to select the number of digits upto which the Super Pi will be calculated. The 1M and 2M are most common values and these are calculated fast. Calculation for 32M, takes much longer – typically 15 minutes for a middle end system. Notice that the recent introduction of the Turbo boost significantly effect the Super Pi 1M, 2M versus and 32M results differently. With turbo boost, the 1M result will almost always make the processor in Turbo mode for whole of the time. It will also make the processor run most of its time in Turbo mode. In case of the 32M, the processor may not run in Turbo mode whole of the time ( as the heat generated will put the processor in normal mode again).

Post Your results

Run your Super Pi benchmark results today and mention them in the comment section below or at the Super Pi benchmark thread in forum.

An Example

Processor Core i3-350M, dual core, 2.26 GHz
The Super Pi 1M – 20 seconds
Super Pi 2M – 48 seconds.
Super Pi 16M – 8 minutes 36 seconds.
Super Pi 32M – 18 minutes 7 seconds.

Here is the screen shot for Super Pi 1M

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