HB_TO_MSM
Harwell Boeing Sparse Matrix File
converted to
Matlab Sparse Matrix

HB_TO_MSM is a MATLAB routine which accepts the name of a file containing a sparse matrix in the Harwell Boeing Sparse Matrix File Format, and which reads that data and returns it in MATLAB sparse matrix format.

Related Data and Programs:

HB is a dataset directory which contains a collection of sparse matrices in the HB format.

HB_IO is a MATLAB library of routines for reading and writing Harwell-Boeing files, used by HB_TO_MSM.

HB_TO_ST is an executable FORTRAN77 program which converts the sparse matrix information stored in a Harwell-Boeing file into a sparse triplet file.

MSM_TO_HB is a MATLAB program which converts a MATLAB sparse matrix into a Harwell-Boeing file.

SPARSE is a MATLAB routine for creating and manipulating sparse matrices.

TEMPLATES is a library of MATLAB routines for iterative solution of linear systems. It includes a routine mm_to_msm which can read a Matrix Market file and store it as a MATLAB sparse matrix.

Reference:

1. Iain Duff, Roger Grimes, John Lewis,
   User's Guide for the Harwell-Boeing Sparse Matrix Collection,
   October 1992,
   Available online at ../../pdf/hbsmc.pdf.

Source Code:

• hb_to_msm.m, the source code.
• timestamp.m, prints the current YMDHMS date as a timestamp.

Examples and Tests:

• hb_to_msm_test.m, runs all the tests.
• hb_to_msm_test.out, output from all the tests.
• hb_to_msm_test01.m, tests MSM_TO_HB on a matrix stored in an HB file.
• rua_32.txt, the HB file read by the test.

You can go up one level to the MATLAB source codes.