LuxurySparse.jl

High performance extension for sparse matrices.

Contents

• General Permutation Matrix PermMatrix,
• Identity Matrix IMatrix,
• Coordinate Format Matrix SparseMatrixCOO,
• Static Matrices SSparseMatrixCSC, SPermMatrix et. al.

with high performance type conversion, kron, and multiplication operations.

Installation

Install with the package manager, pkg> add LuxurySparse.

Usage

using SparseArrays, LuxurySparse, BenchmarkTools

pm = pmrand(7)  # a random permutation matrix
id = IMatrix(3) # an identity matrix
@btime fastkron(pm, id)   # 96.606 ns

Spm = pm |> SparseMatrixCSC  # convert to SparseMatrixCSC
Sid = id |> SparseMatrixCSC
@btime kron(Spm, Sid)     # 388.817 ns

spm = pm |> staticize        # convert to static matrix, notice that `id` is already static.
@btime fastkron(spm, spm)    # 104.581 ns
@btime fastkron(pm, pm)      # 146.484 ns

For more information, please refer the latest Documentation.

Planned features

• Change PermMatrix to column major
• Better support of conversion to static matrices