hb_to_st_test

hb_to_st_test, a Fortran90 code which calls hb_to_st(), which reads the definition of a sparse matrix from a file in Harwell-Boeing format, and writes the information into a Sparse Triplet file.

Licensing:

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

Related Data and Programs:

hb_to_st, a Fortran90 code which reads the definition of a sparse matrix from a file in Harwell-Boeing format, and writes the information into a Sparse Triplet file.

Source Code:

5BY5 is a simple 5 by 5 matrix:

        1.1  0.0  0.0  1.4  0.0
        0.0  2.2  0.0  0.0  0.0
        3.1  3.2  3.3  3.4  3.5
        0.0  0.0  0.0  4.4  4.5
        5.1  5.2  0.0  0.0  5.5
      

• 5by5_rua.hb, the Harwell-Boeing file containing the matrix.
• 5by5_rua.st, is the corresponding sparse triple file;

KERSHAW is a simple 4 by 4 matrix:

         3  -2   0   2
        -2   3  -2   0
         0  -2   3  -2
         2   0  -2   3
      

• kershaw_rua.hb, the Harwell-Boeing file containing the matrix.
• kershaw_rua.st, is the corresponding sparse triple file;

List of Routines:

• MAIN is the main program for HB_TO_ST.
• GET_UNIT returns a free Fortran unit number.
• TIMESTAMP prints the current YMDHMS date as a time stamp.

You can go up one level to the Fortran90 source codes.