ccs_io


ccs_io, a FORTRAN90 code which reads and writes Compressed Column Storage (CCS) sparse matrix files.

An MxN sparse matrix of NCC nonzero entries in compressed column format is described by three items:

The nonzero entries of column J are stored in locations CCC(J) through CCC(J+1)-1 of ICC and ACC.

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Languages:

ccs_io is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version.

Related Data and Programs:

ccs, a data directory which contains examples of the Compressed Column Storage (CCS) sparse matrix file format;

ccs_io_test

ccs_to_st, a FORTRAN90 code which converts a sparse matrix from Compressed Column Storage (CCS) to sparse triple (ST) format.

HB_IO, a FORTRAN90 code which reads and writes sparse linear systems stored in the Harwell Boeing (HB) format for sparse matrices.

MM_IO, a FORTRAN90 code which reads and writes sparse linear systems stored in the Matrix Market (MM) format.

ST_IO, a FORTRAN90 code which reads and writes sparse linear systems stored in the Sparse Triplet (ST) format.

st_to_ccs, a FORTRAN90 code which converts sparse matrix data from Sparse Triplet (ST) format to Compressed Column Storage (CCS) format.

Source Code:


Last revised on 06 September 2021.