sgefa_openmp, a C code which reimplements the SGEFA/SGESL linear algebra routines from linpack() for use with OpenMP.
Right now, running for N = 10, 100 and 1000, but only using a 2 Processor Apple G5, the parallel code is not doing well at all. I will try to find out what is holding it back.
The information on this web page is distributed under the MIT license.
sgefa_openmp is available in a C version and a C++ version and a Fortran90 version.
dijkstra_openmp, a C code which uses OpenMP to parallelize a simple example of Dijkstra's minimum distance algorithm for graphs.
fft_openmp, a C code which demonstrates the computation of a Fast Fourier Transform in parallel, using OpenMP.
functions_openmp, a C code which demonstrates the behavior of a few of the OpenMP library functions.
heated_plate_openmp, a C code which solves the steady (time independent) heat equation in a 2D rectangular region, using OpenMP to run in parallel.
hello_openmp, a C code which prints out "Hello, world!" using the OpenMP parallel programming environment.
image_denoise_openmp, a C code which applies simple filtering techniques to remove noise from an image, carrying out the operation in parallel using OpenMP.
jacobi_openmp, a C code which illustrates the use of the OpenMP application program interface to parallelize a Jacobi iteration solving A*x=b.
julia_set_openmp, a C code which produces an image of a Julia set, using OpenMP to carry out the computation in parallel.
linpack_d, a C code which factors and solves systems of linear equations using real arithmetic.
linpack_bench, a C code which measures the time taken by LINPACK to solve a particular linear system.
mandelbrot_openmp, a C code which generates an ASCII Portable Pixel Map (PPM) image of the Mandelbrot fractal set, using OpenMP for parallel execution.
md_openmp, a C code which carries out a molecular dynamics simulation using OpenMP.
multitask_openmp, a C code which demonstrates how to "multitask", that is, to execute several unrelated and distinct tasks simultaneously, using OpenMP for parallel execution.
mxm_openmp, a C code which computes a dense matrix product C=A*B, using OpenMP for parallel execution.
openmp_test, C codes which use the OpenMP application program interface for carrying out parallel computations in a shared memory environment.
poisson_openmp, a C code which computes an approximate solution to the Poisson equation in a rectangle, using the Jacobi iteration to solve the linear system, and OpenMP to carry out the Jacobi iteration in parallel.
prime_openmp, a C code which counts the number of primes between 1 and N, using OpenMP for parallel execution.
quad_openmp, a C code which approximates an integral using a quadrature rule, and carries out the computation in parallel using OpenMP.
random_openmp, a C code which illustrates how a parallel program using OpenMP can generate multiple distinct streams of random numbers.
satisfy_openmp, a C code which demonstrates, for a particular circuit, an exhaustive search for solutions of the circuit satisfy problem, using OpenMP for parallel execution.
schedule_openmp, a C code which demonstrates the default, static, and dynamic methods of "scheduling" loop iterations in OpenMP to avoid work imbalance.
ziggurat_openmp, a C code which demonstrates how the ZIGGURAT library can be used to generate random numbers in an OpenMP parallel program.