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README

                            SUNDIALS 
    SUite of Nonlinear and DIfferential/ALgebraic equation Solvers
                   Release 2.4.0, January 2008
                  Alan Hindmarsh and Radu Serban
           Center for Applied Scientific Computing, LLNL


The family of solvers referred to as SUNDIALS consists of the following solvers:
 CVODE  - for integration of ordinary differential equation systems (ODEs)
          CVODE treats stiff and nonstiff ODE systems of the form
          y' = f(t,y), y(t0) = y0
 CVODES - for integration and sensitivity analysis of ODEs
          CVODES treats stiff and nonstiff ODE systems of the form
          y' = f(t,y,p), y(t0) = y0(p)
 IDA    - for integration of differential-algebraic equation systems (DAEs)
          IDA treats DAE systems of the form
          F(t,y,y') = 0, y(t0) = y0, y'(t0) = y0'
 IDAS   - for integration and sensitivity analysis of DAEs
          IDAS treats DAE systems of the form
          F(t,y,y',p) = 0, y(t0) = y0(p), y'(t0) = y0'(p)
 KINSOL - for solution of nonlinear algebraic systems
          KINSOL treats nonlinear systems of the form
          F(u) = 0

The various solvers of this family share many subordinate modules.
For this reason, it is organized as a family, with a directory structure 
that exploits that sharing. Each individual solver includes documentation 
on installation, along with full usage documentation.

Warning to users who receive more than one of these individual solvers
at different times: The mixing of old and new versions SUNDIALS may fail.  
To avoid such failures, obtain all desired solvers at the same time.

For installation directions see the file INSTALL_NOTES.

For additional information on a particular solver, see the README file
in the solver directory (e.g. src/cvode/README).


Release history

+----------+-----------------------------------------------------------------+
|          | SUNDIALS |                        Solver version                |
|   Date   |          +----------+----------+----------+---------------------+
|          | release  |   CVODE  | CVODES   |   IDA    |   IDAS   |  KINSOL  |
+----------+----------+----------+----------+----------+---------------------+
| Jul 2002 |   1.0    |    2.0   |    1.0   |    2.0   |          |    2.0   |
| Dec 2004 |   2.0    |  2.2.0   |  2.1.0   |  2.2.0   |          |  2.2.0   |
| Jan 2005 |   2.0.1  |  2.2.1   |  2.1.1   |  2.2.1   |          |  2.2.1   |
| Mar 2005 |   2.0.2  |  2.2.2   |  2.1.2   |  2.2.2   |          |  2.2.2   |
| Apr 2005 |   2.1.0  |  2.3.0   |  2.2.0   |  2.3.0   |          |  2.3.0   |
| May 2005 |   2.1.1  |  2.3.0   |  2.3.0   |  2.3.0   |          |  2.3.0   |
| Mar 2006 |   2.2.0  |  2.4.0   |  2.4.0   |  2.4.0   |          |  2.4.0   |
| Nov 2006 |   2.3.0  |  2.5.0   |  2.5.0   |  2.5.0   |          |  2.5.0   |
| Jan 2008 |   2.4.0  |  2.6.0   |  2.6.0   |  2.6.0   |  1.0.0   |  2.6.0   |
+----------+----------+----------+----------+----------+---------------------+