High-Performance Computing and OpenSolaris

High-Performance Computing and OpenSolaris ,[object Object],[object Object],[object Object],[object Object]

Agenda ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Aplication Area Share ,[object Object]

Serial Computation problem instructions CPU

Serial Computation ,[object Object],[object Object],[object Object],instructions CPU

Parallel Computing problem CPU CPU CPU parts instructions

Parallel Computing ,[object Object],[object Object],[object Object],[object Object],[object Object]

Flynn's Taxonomy ,[object Object],[object Object],SISD S ingle I nstruction, S ingle D ata SIMD S ingle I nstruction, M ultiple D ata MISD M ultiple I nstruction, S ingle D ata MIMD M ultiple I nstruction, M ultiple D ata

SISD ,[object Object],LOAD A LOAD B C = A+B STORE C CPU

SIMD ,[object Object],LOAD A[0] LOAD B[0] C[0] = A[0]+B[0] STORE C[0] LOAD A[1] LOAD B[1] C[1] = A[1]+B[1] STORE C[1] LOAD A[n] LOAD B[n] C[n] = A[n]+B[n] STORE C[n] CPU 1 CPU 2 CPU n

MISD ,[object Object],LOAD A[0] C[0] = A[0] *1 STORE C[0] LOAD A[1] C[1] = A[1] *2 STORE C[1] LOAD A[n] C[n] = A[n] *n STORE C[n] CPU 1 CPU 2 CPU n

MIMD ,[object Object],LOAD A[0] C[0] = A[0] *1 STORE C[0] X=sqrt(2) C[1] = A[1] *X method(C[1]); something(); W = C[n]**X C[n] = 1/W CPU 1 CPU 2 CPU n

Parallel Programming Models ,[object Object],[object Object],[object Object],[object Object],[object Object]

Threads Model Memory CPU CPU CPU CPU

Message Passing Model Memory CPU Memory CPU Memory CPU Memory CPU x=10

Hybrid Model x=10 Memory CPU Memory CPU Memory CPU CPU Memory CPU CPU

Amdahl's Law fraction of code that can be parallelized

Amdahl's Law parallel fraction number of processors serial fraction

Pi calculation ,[object Object],CPU CPU

MPI ,[object Object],[object Object],[object Object]

MPI Simplest Example $ mpicc hello.c -o hello $ mpirun -np 5 hi

OpenMP ,[object Object],[object Object],[object Object],[object Object]

Creating a OpenMP Thread $ gcc -openmp hello.c -o hello $ ./hello

Creating multiples OpenMP Threads

Pthreads ,[object Object],[object Object],[object Object]

Pthreads g++ -o threads threads.cpp -lpthread ./threads

Java Threads ,[object Object],[object Object]

What is OpenSolaris? ,[object Object],[object Object]

Opensolaris ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Sun HPC ClusterTools ,[object Object],[object Object],[object Object]

References ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

References ,[object Object],[object Object],[object Object],[object Object]

Thank you! José Maria Silveira Neto Sun Campus Ambassador [email_address] http://silveiraneto.net “ open” artwork and icons by chandan: http://blogs.sun.com/chandan

High-Performance Computing and OpenSolaris

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High-Performance Computing and OpenSolaris