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https://github.com/jacobwilliams/minpack-2

Unofficial mirror of MINPACK-2 from https://ftp.mcs.anl.gov/pub/MINPACK-2/
https://github.com/jacobwilliams/minpack-2

minpack

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Unofficial mirror of MINPACK-2 from https://ftp.mcs.anl.gov/pub/MINPACK-2/

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README 

        

This directory contains MINPACK-2 software for 

the solution of systems of nonlinear equations, 

nonlinear least squares problems, and minimization problems.



The initial software development work concentrated on the

software for the solution of medium-scale problems on vector

and shared-memory architectures. A Levenberg-Marquardt method 

for nonlinear least squares and a trust region Newton method 

for minimization problems are currently available.

The BLAS and LAPACK routines have been used wherever possible

to enhance performance on a variety of architectures.

Current work centers on software for large-scale problems.

A variable-storage variable metric method

and a trust region Newton method are currently available.

Future work will focus on software for distributed memory architectures.



The codes use a reverse communication interface for flexibility and 

ease of use. The codes are accompanied by auxiliary subroutines.

For example, subroutines for computing the covariance

matrix in least squares problems, for estimating

the noise in the function, for estimating the difference

parameter, and for estimating sparse Jacobian and Hessian matrices.



Software will be added to this directory as it becomes available.

The MINPACK-2 test problem collection is available in 

single and double precision; all other software is in double precision.

Single precision versions of the software can be generated easily,

but are only available on request.



The README file in each subdirectory contains additional

information on the status of the software.



Please report any comments and errors to: 



	Jorge J. More' 

        Mathematics and Computer Science Division

        Argonne National Laboratory

        9700 South Cass Avenue

        Argonne, IL  60439

        email: [email protected]



Last modification: September 1, 1997



Organization

============



   csrch

   -----



   This directory has the files for the line search subroutine.



      dcsrch.f

      dcstep.f

      csrch.tar.gz



   vmlm

   -----



   This directory has the files for the limited memory 

   variable metric method. 



      dvmlm.f

      dlmmv.f

      vmlm.tar.gz



   tprobs

   -------



   This directory contains the MINPACK-2 test problem collection.

```

   dficfj.f dficjs.f dficsp.f --- flow in a channel

   dsfdfj.f dsfdjs.f dsfdsp.f --- swirling flow between disks

   dierfj.f dierjs.f diersp.f --- incompressible elastic rods

   dsfifj.f dsfijs.f dsfisp.f --- solid fule ignition

   dfdcfj.f dfdcjs.f dfdcsp.f --- flow in a driven cavity

   dhhdfj.f                   --- human heart dipole

   dcpffj.f                   --- combustion of propane: full formulation

   dcprfj.f                   --- combustion of propane: reduced formulation



   diacfj.f                   --- Isomerization of alpha-pinene: collocation

   diadfj.f                   --- Isomerization of alpha-pinene: direct

   diaofj.f                   --- Isomerization of alpha-pinene: constraints

   diarfj.f                   --- Isomerization of alpha-pinene: residuals

   dctsfj.f                   --- Coating thickness standardization

   dedffj.f                   --- Exponential data fitting

   dgdffj.f                   --- Gaussian data fitting

   datrfj.f                   --- Analysis of thermistor resistance

   daerfj.f                   --- Analysis on an enzyme reaction

   dchqfj.f                   --- Chebychev quadrature



   deptfg.f depths.f deptsp.f --- elastic-plastic torsion

   dpjbfg.f dpjbhs.f dpjbsp.f --- pressure distribution in a journal bearing

            dpjbds.f

   dmsafg.f dmsahs.f dmsasp.f --- minimal surfaces

   dmsabc.f

   dodcfg.f dodchs.f dodcsp.f --- optimal design with composites

   dodcps.f

   dljcfg.f                   --- Lennard-Jones clusters

   dgl1fg.f dgl1hs.f dgl1sp.f --- 1-d Ginzburg-Landau

   dsscfg.f dsschs.f dsscsp.f --- steady-state combustion

   dgl2fg.f dgl2hs.f dgl2sp.f --- 2-d Ginzburg-Landau

            dgl2co.f

```

   sockets

   -------



   This directory contains the sockets files for

   the MINPACK-2 test problem collection.

```

   fic.m --- flow in a channel

   sfd.m --- swirling flow between disks

   ier.m --- incompressible elastic rods

   sfi.m --- solid fule ignition

   fdc.m --- flow in a driven cavity

   ept.m --- elastic-plastic torsion

   pjb.m --- pressure distribution in a journal bearing

   msa.m --- minimal surfaces

   odc.m --- optimal design with composites

   gl1.m --- inhomogeneous superconductors: 1-d Ginzburg-Landau

   ssc.m --- steady-state combustion

   gl2.m --- inhomogeneous superconductors: 2-d Ginzburg-Landau

```

   utils

   -----



   This directory contains utilty programs needed by MINPACK-2.

```

   dnrm2.f  --- computes the l2 norm

   dpmeps.f --- determines the machine precision

   dtimer.f --- computes the current time

   surn01.f --- computes a (single precision) uniform random number in (0,1)

```

   lapack

   ------



   This directory contains the LAPACK files needed by MINPACK-2.

```

   dgeqrf.f dgeqr2.f --- Computes the QR factorization

   dpotf2.f dpotrf.f --- Computes the Cholesky factorization

   dormqr.f dorm2r.f --- Aplies the matrix Q

   dorg2r.f dorgqr.f --- Generates the matrix Q

   dlarf.f  dlarfb.f

   dlarfg.f dlarft.f --- Applies a reflector

   dlamc1.f dlamc2.f

   dlamc3.f dlamc4.f

   dlamc5.f          --- Computes machine constants

   ilaenv.f          --- Returns problem-dependent parametrs

   dlapy2.f          --- Computation of sqrt(x**2+y**2)

   lsame.f           --- Compares strings

   xerbla.f          --- xerbla.f

```

   blas

   ----



   This directory contains the blas files needed by MINPACK-2.

```

   Level 1: dasum.f daxpy.f dcopy.f ddot.f dscal.f dswap.f idamax.f



   Level 2: dger.f dtrsv.f xerbla.f



   Level 3: dgemm.f dsyrk.f dtrsm.f

```

   tprobs.92

   ---------



   This directory contains the 1992 version of the

   MINPACK-2 test problem collection.



   mgh

   ---



   This directory has the More', Garbow, Hillstrom MINPACK-1 test problems.

```

   vecfcn.f --- nonlinear equations problems

   vecjac.f --- nonlinear equations Jacobain matrices

   ssqfcn.f --- nonlinear least squares problems

   ssqjac.f --- nonlinear least squares Jacobian matrices

   objfcn.f --- unconstrained minimization problems

   grdfcn.f --- unconstrained minimization gradients

   hesfcn.f --- unconstrained minimization Hessians

  lhesfcn.f --- unconstrained minimization Hessians (compressed form)

   neq.data --- nonlinear equations sample data

   ssq.data --- nonlinear least squares sample data

    um.data --- unconstrained minimization sample data

```