Parallella: The Most Energy Efficient Supercomputer on the Planet

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Madison+ Ruby Madison, WI, USA August 21-22, 2015 The Most Energy Efﬁcient Supercomputer on the Planet

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Moore’s Law: 2x every 18 months

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Moore’s Law: 2x every 18 months Moore’s Law 1993 - 2013 http://www.washingtonpost.com/blogs/innovations/wp/2015/04/14/10-images-that-explain-the- incredible-power-of-moores-law/ https://www.parallella.org/board/

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RayHightower.com

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RJ-45 Power μUSB μHDMI μSD

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RISC ARM 18 cores: 2 ARM + 16 RISC

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Watts => Dollars.

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17.8 million watts $17.8 million per year

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5 watts for Parallella?

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http://rayhightower.com/blog/2014/09/09/solar-powered-parallella/

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http://rayhightower.com/blog/2014/09/09/solar-powered-parallella/

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http://rayhightower.com/blog/2014/09/09/solar-powered-parallella/ 5 volts 1 amp 5 watts Solar!

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If one ox could not do the job they did not try to grow a bigger ox, but used two oxen. When we need greater computer power, the answer is not to get a bigger computer, but to build systems of computers and operate them in parallel. -Grace Hopper

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Reduced Instruction Set Computer RISC

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ARM A9

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RISC ARM 18 cores: 2 ARM + 16 RISC

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Hello Epiphany

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host.c epiphany.c

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Find all primes up to 16,000,000. Serial on Parallella.

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1 #include 2 #include 3 #include 4 #include 5 6 #define DEFAULT_MAX_TESTS 16000000 7 8 inline int isprime(unsigned long number) 9 { 10 unsigned long i; 11 unsigned long s = sqrt(number); 12 for(i=3;i<=s;i+=2) 13 { 14 if(number % i == 0) 15 return 0; 16 } 17 return 1; 18 } /* Copyright (c) Adapteva, contributed by M. Thompson with modifications by T. Malthouse. */

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8 inline int isprime(unsigned long number) 9 { 10 unsigned long i; 11 unsigned long s = sqrt(number); 12 for(i=3;i<=s;i+=2) 13 { 14 if(number % i == 0) 15 return 0; 16 } 17 return 1; 18 } /* Copyright (c) Adapteva, contributed by M. Thompson with modifications by T. Malthouse. */

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Find all primes up to 16,000,000. Serial on Mac OS X.

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Same serial code, written in C. Build it on OS X.

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Find all primes up to 16,000,000. Parallel on Parallella.

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27 #include 28 29 // Default max number of prime tests per core 30 // Used if a limit it not provided in argv[1] 31 #define DEFAULT_MAX_TESTS 500000 32 33 int main(int argc, char *argv[]) 34 { 35 unsigned row, col, coreid, i, j; 36 e_platform_t platform; 37 e_epiphany_t dev; 38 /* Copyright (c) Adapteva, contributed by M. Thompson with modifications by T. Malthouse.*/

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Serial/Parallella: Serial/Mac: Parallel/Parallella: 237.1 sec 14.4 sec 18.6 sec Summary: Finding Primes 18 cores (using one). Up to 1GHz. $150.00 4 cores (using one). 2.7GHz. $2,000.00 18 cores. Up to 1GHz. $150.00

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Mandelbrot Set

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Why?

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Finite Element Analysis http://www.ce.ncsu.edu/news/article/21550/making-bridges-more-robust-to-earthquakes/

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break? wear out? work? Finite Element Analysis Will it {

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Free Body Diagram F F applied friction F gravity F normal

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Finite Element Analysis http://www.ce.ncsu.edu/news/article/21550/making-bridges-more-robust-to-earthquakes/

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https://www.e-education.psu.edu/worldofweather/node/2029 Grid spacing inﬂuences accuracy. Weather Prediction