                     SUNLINSOL_SPTFQMR
                 released as part of SUNDIALS
    SUite of Nonlinear and DIfferential/ALgebraic equation Solvers
                   Release 3.0.0, September 2017


Scaled, preconditioned, Transpose-Free Quasi-Minimum Residual method
implementation of the SUNLINSOL module for SUNDIALS.  

SUNLINSOL_SPTFQMR defines the content field of SUNMatrix to be a structure 
containing a X, along with a long integer for any error flag that arises in
the linear solver routines.

SUNLINSOL_SPTFQMR defines N macros to provide access to the content of 
a SPTFQMR SUNLinearSolver, and constructor for the SPTFQMR
SUNLinearSolver, in addition to implementation of all linear
solver operations defined by the generic SUNLINSOL module in the table
of operations.


A. Documentation
----------------

The SPTFQMR SUNLINSOL implementation is fully described in the user
documentation for any of the SUNDIALS solvers. A PDF file for the user
guide for a particular solver is available in the solver's
subdirectory under doc/. 


B. Installation
---------------

For basic installation instructions see /sundials/INSTALL_GUIDE.pdf. 
For complete installation instructions see any of the user guides.


D. Releases
-----------
v. 1.0   - date?


