This is the README file for the ssvd program that is a driver program for
my wrapper library LIBMYSSVD.


# REQUIREMENTS FOR BUILDING

1. gcc version greater than 3, the library is not compatible with older versions
   of the compiler

2. GNU scientific library (libgsl)

3. That's about it I guess, it should build given these. No ATLAS, LAPACK etc.
   are required to build the sparse SVD code.


To build the program do the following

$ make

that is all! You may additionally compile the documentation in
ssvddoc.tex or you may access it at the following webpage

http://www.cs.utexas.edu/users/suvrit/work/progs/ssvd.html

A sample matrix in Compressed column storage (CCS) format
is included. The relevant files are:

test1_col_ccs  test1_dim  test1_row_ccs  test1_txx_nz

The options file is test.opts (and it is a valid options file for las1 and
las2 SVD routines)

Thus a sample command line to compute the singular values and
singular vectors is:

$ ./ssvd -f test1 -t txx -o test.opts -a 3 -v

Use ssvd -h to know the meaning of these options.


Feel free to contact me == suvrit at cs dot utexas dot edu if you have any
concerns.