ConFoo 2016: Parallella, Supercomputing, & Ruby

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Confoo.CA Montreal, QB, Canada February 24-26, 2016 RayHightower.com Supercomputing & Ruby

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•Why Parallelism? •Concurrency vs Parallelism •Parallella vs MacBook Pro •Cool & Useful •Q & A Our Journey…

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RISC ARM 18 cores: 2 ARM + 16 RISC

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RayHightower.com

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Why?

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Faster is better.

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Faster is better.

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Moore’s Law: 2x every 18 months

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

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Parallelism

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Concurrency is not Parallelism. https://www.youtube.com/watch?v=cN_DpYBzKso&list=PLOnWKC1gI_OPU8SDIBnCLHsgzNLSbnPJQ&index=3 -Rob Pike, Go

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Concurrency At least two threads are making progress. Parallelism At least two threads are executing simultaneously. Oracle Multithreaded Programming Guide http://docs.oracle.com/cd/E19455-01/806-5257/6je9h032b/index.html vs.

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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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RJ-45 Power μUSB μHDMI μSD

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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/ 5 volts 1 amp 5 watts Solar!

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Reduced Instruction Set Computer RISC

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Advanced (or Acorn) RISC Machine ARM

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Field Programmable Gate Array FPGA

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RISC ARM + FPGA 18 cores: 2 ARM + 16 RISC

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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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237.1 sec

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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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14.4 sec

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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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18.6 sec

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Summary: Finding Primes 0" 50" 100" 150" 200" 250" Parallel Parallella Serial Mac Serial Parallella 18.6 sec 14.4 sec 237.1 sec ($2,000.00 Apple MacBook Pro) ($150.00 Parallella)

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Embarrassingly parallel problem.

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Mandelbrot Set

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Why?

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

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Where can Ruby (or Python, Node.js, Erlang, etc.) ﬁt?

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Ruby  +  Sinatra  +  WebSockets

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Original example by The Hybrid Group and Engine Yard. Modiﬁed by WisdomGroup.

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Field Programmable Gate Array FPGA

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AB 00 01 10 11 Q 1 1 1 0

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Parallella vs GPU

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384 cores MacBook Pro Video

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Specialized vs. General

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Something new for you… Pine A64 4 cores 64-bit $15.00

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Merci! RayHightower.com