ID: com.georgie.pi
Version: 1.1
Size: 1.1 Mb
Real Pi Benchmark Screen Preview
How to setup Real Pi Benchmark apk for android
- For Android 4.0 or higher:Please to Settings, look down to Security, and select Unknown sources. Choosing this choice will enable to install apps download from the internet.
- For devices running on lower Android 4.0:
Please go to Settings - open the Applications option, and select Unknown sources, click OK on the popup alert.
Real Pi Benchmark Description
RealPi provides some of the best and most interesting Pi calculation algorithms out there. This app is a benchmark which tests your Android device's CPU and memory performance. It calculates the value of Pi to the number of decimal places you specify. You can view and search for patterns in the resulting digits to find your birthday in Pi or find famous digit sequences like the "Feynman Point" (six 9's in a row at the 762nd digit position). There are no hard limits on the number of digits, if you experience a freeze please see "Warnings" below.Leave comments with your Pi calculation time on the AGM+FFT formula for 1 million digits. Also the most digits you can calculate, which tests your phone's memory. The author's Huawei Ascend P1 takes 25 sec for 1 million and can do at most 33 million digits. Note that the AGM+FFT algorithm works in powers of 2, so calculating 10 million digits takes just as much time and memory as 16 million digits (the internal precision is shown in the output). On multi-core processors RealPi tests the performance of a single core. For accurate benchmark timing ensure that no other applications are running and your phone is not hot enough to throttle the CPU.
Search function:
Use this to find patterns in Pi like your birthday. For best results calculate at least one million digits using the AGM + FFT formula, then select the "Search for Patterns" menu option.
Here's a summary of the available algorithms:
-AGM + FFT formula (Arithmetic Geometric Mean): This is one of the fastest available methods to calculate Pi, and is the default formula used by RealPi when you press "Start". It runs as native C++ code and is based on Takuya Ooura's pi_fftc6 program. For many millions of digits it can require a lot of memory, which often becomes the limiting factor in how many digits you can calculate.
-Machin's formula: This formula was discovered by John Machin in 1706. It's not nearly as fast as AGM + FFT, but shows you all the digits of Pi accumulating in real time as the calculation proceeds. Choose this formula in the settings menu and then press "Start". It's written in Java using the BigDecimal class. You should probably not ask it to compute much more than 10000 digits.
-Nth digit of Pi formula by Gourdon: This formula shows that it's possible (surprisingly) to calculate decimal digits of Pi "in the middle" without calculating the preceding digits, and needs very little memory. When you press the "Nth Digit" button RealPi determines 9 digits of Pi ending with the digit position you specify. It runs as native C++ code and is based on Xavier Gourdon's pidec program. Although it's faster than Machin's formula it can't beat the AGM + FFT formula in speed.
-Nth digit of Pi formula by Bellard: Gourdon's algorithm for the Nth digit of Pi can't be used for the first 50 digits, so this formula by Fabrice Bellard is used instead if digits < 50.
Permissions:
If you enable the "Calculate when in sleep" option RealPi will keep calculating while your screen is off, useful when calculating many digits of Pi. While not calculating or after the calculation finishes your device will go into deep sleep as usual.
Warnings:
This app can drain your battery quickly when doing a long calculation, especially if the "Calculate when in sleep" option is on.
Calculation speed depends on your device's CPU speed and memory. At very large numbers of digits RealPi may terminate unexpectedly or not produce an answer. It could also take a very long time to run (years). This is due to the large amount of memory and/or CPU time needed. The upper limit on the number of digits you can calculate depends on your Android device.
Changes to the "Calculate when in sleep" option take effect for the next Pi calculation, not in the middle of a calculation.
What's new in Real Pi Benchmark 1.1
1.1 2014-04-30-Updated to use new theme, add action bar
-Enabled Move to SD
-Added warnings when Machin or Gourdon formula will take a long time to run
-Removed support for Cupcake, Donut
Pi music may be coming one day in a future version of this app! Pi fanatics check out this song composed by Michael Blake based on Tau (2Pi) www.youtube.com/watch?v=3174T-3-59Q
Download Real Pi Benchmark 1.1 unlimited APK
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<span style="color:red">A Google User:</span> HTC EVO 4G lte 1 mil in 19.3 secs at 1.5 ghz on noop.<br /><br /><span style="color:red">Anthony Allison:</span> Samsung note 3 It took 9.46 seconds to calculate the 1million<br /><br /><span style="color:red">A Google User:</span> X86 :) 18 seconds to 1M Orange San Diego (Intel Medfield)<br /><br /><span style="color:red">A Google User:</span> Nexus 10 Nexus 10 only 10.07 seconds for 1 million. Definitely the fastest android device out there.<br /><br /><span style="color:red">A Google User:</span> Booyah! 14.65 sec for 1mil, galaxy s3<br /><br /><span style="color:red">:</span> Verizon moto x 12.26 seconds for 1 millionth digit.<br /><br /><span style="color:red">A Google User:</span> CM10 18 sec to 1M, on galaxy s3 int., running CM10 PREVIEW.<br /><br /><span style="color:red">Димитър Матев:</span> LG G2 I have 9.11 fot 1 000 000<br /><br /><span style="color:red">A Google User:</span> Motorola ATRIX 2 30.5 seconds to 1 million<br /><br /><span style="color:red">A Google User:</span> Wetab@X86 Icecream 4.0 17.31 sec for 1.000.000<br /><br /><span style="color:red">A Google User:</span> 17.92 for 1million sgs3 Does what it's says, and well.<br /><br /><span style="color:red">Siu Ming Chan:</span> Vega A880 8.67 seconds for 1M digits<br /><br /><span style="color:red">A Google User:</span> 25 Atrix stock tegra kernel<br /><br /><span style="color:red">A Google User:</span> Sony xperia p 1 million 35.45/sec<br /><br /><span style="color:red">A Google User:</span> Motorola Droid 3 26.1 seconds to 1m<br /><br /><span style="color:red">A Google User:</span> 7noon Gs3 , 17.4 sec to 1 mil dig.<br /><br /><span style="color:red">Nikola Zaykov:</span> Cool 293.40 seconds for 10 mil 11.48 seconds for 1 mil HTC One (stock 4.2.2)<br /><br /><span style="color:red">Chris Brierley:</span> Xperia s 4.0.4 stock 24.44 seconds to million<br /><br /><span style="color:red">A Google User:</span> Galaxy Note 21.13 seconds to a million<br /><br /><span style="color:red">A Google User:</span> 1million 30.12 seconds Motorola ATRIX<br /><br /><span style="color:red">Steven Lampshire:</span> Fastest 8.97 faster then the G2 and note 3. Try holding a Z1<br /><br /><span style="color:red">A Google User:</span> 25.33 sec to 1 million Slimbean 2.8<br /><br /><span style="color:red">A Google User:</span> Bionic 31.2 seconds to a million :D<br /><br /><span style="color:red">A Google User:</span> Good Benchmark 17.95 seconds to 1 million on stock Galaxy S3 US Version with the Snapdragon S4.<br /><br /><span style="color:red">A Google User:</span> 17.60 Samsung S3 1mil digits<br /><br /><span style="color:red">A Google User:</span> Droid3 1million @ 30 seconds Droid3<br /><br /><span style="color:red">A Google User:</span> HTC Rezound 257 seconds<br /><br /><span style="color:red">Klodi Daedalus:</span> Htc Sensation 26s for 1M .clocked @1.8ghz<br /><br /><span style="color:red">A Google User:</span> Motorola Triumph 37.75 for 1M<br /><br /><span style="color:red">A Google User:</span> SGS2 24.28 seconds for 1M.<br /><br /><span style="color:red">A Google User:</span> Great! It makes you realize how powerful your phone is<br /><br /><span style="color:red">A Google User:</span> Pi is yummy 1M in 29.53 stock non rooted RAZR maxx<br /><br /><span style="color:red">Viktor Tsvetanov:</span> 14.83sec 1M ;) Lenovo K900 - 14.83sec/1M<br /><br /><span style="color:red">Sase Best:</span> Nicee 1M in 12.01sec I9505 with stock 4.3 android<br /><br /><span style="color:red">The Ecki:</span> nice bench 4 sec for X86.<br /><br /><span style="color:red">A Google User:</span> nice 1 million @ 23.83 secs on Galaxy Note<br /><br /><span style="color:red">evan mccaulley:</span> HTC incredible 4g 10,000,000 digits in 551.02s<br /><br /><span style="color:red">Adnan Javed:</span> Good Took 8.2 sec for 1 million OC @1.7GHz.<br /><br /><span style="color:red">A Google User:</span> :D Awesome app does what its meant to do, havnt had any problems with it.<br /><br /><span style="color:red">A Google User:</span> . 351.90s for 1 million on Samsung Galaxy S II<br /><br />