pbdDEMO (version 0.3-1)

plot_dmat: Visualizing the DMAT Data Structure

Description

Plot a (small) global matrix as though it had been chopped up into pieces in the block-cyclic fashion.

Usage

plot_dmat(nrow, ncol, nprow, npcol, bldim, ..., labeling = "blacs", col = "rainbow")

Arguments

nrow, ncol

Number of global rows/columns of the matrix.

nprow, npcol

Number of processor rows/columns in the BLACS grid.

bldim

The blocking factor for the data distribution.

...

Additional arguments

labeling

Character argument; should be "blacs" or "mpi". This determines how the processor labeling should be, either in the 2-d BLACS way, or in the 1-d MPI way.

col

R plots color argument

Details

This function helps the user visualize 2-d block-cyclic distributed data.