ccs_io, a C++ 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.
The computer code and data files described and made available on this web page are distributed under the MIT license
ccs_io is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version.
ccs, a data directory which contains examples of matrix stored in the Compressed Column Storage (CCS) format.
HB_IO, a C++ code which reads and writes sparse linear systems stored in the Harwell Boeing (HB) format for sparse matrices.
ST_IO, a C++ code which reads and writes sparse linear systems stored in the Sparse Triplet (ST) format.
ccs_to_st, a C++ code which converts a sparse matrix from Compressed Column Storage (CCS) to sparse triple (ST) format.