mxm

mxm/b>, an Octave code which sets up a matrix-matrix multiplication problem A = B * C, and carries it out using

Nested DO I, J, K loops;

Nested DO I, K, J loops;

Nested DO J, I, K loops;

Nested DO J, K, I loops;

Nested DO K, I, J loops;

Nested DO K, J, I loops;

the MATLAB "star" operator: A = B * C;

The user is allowed to specify N1, N2, and N3, which define the matrix sizes.

Usage:

mxm n1 n2 n3
where

n1 is the number of rows in B.

n2 is the number of columns in B and rows in C.

n3 is the number of columns in C;

Licensing:

The information on this web page is distributed under the MIT license.

Languages:

mxm is available in a C version and a C++ version and a Fortran77 version and a Fortran90 version and a MATLAB version and an Octave version and a Python version.

Related Data and Programs:

mxm_test

linpack_bench, an Octave code which measures the time needed to factor and solve a "large" (N=1000) dense linear system of equations, and is used as a benchmark.

timer_test, an Octave code which demonstrates how to compute CPU time or elapsed time.

Reference:

John Burkardt, Paul Puglielli,
Pittsburgh Supercomputing Center,
MATMUL: An Interactive Matrix Multiplication Benchmark

Source Code:

mxm.m, the source code.

Last revised on 05 June 2023.