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This documentation is valid for TAO version 2.2.2, for the latest version, please visit the PETSc documentation
page at http://www.mcs.anl.gov/petsc/documentation/installation.html.
Installing TAO should take less than an hour.
We support its use on any of the following architectures:
- Linux
- Apple OS X
- Windows (under cygwin)
- freebsd
- Solaris
- Cray
TAO uses a portable makefile system provided by the PETSc
library; thus, refer to PETSc installation support for details about these machines.
Note for Windows Users
The following installation instructions are intended to be run from
the unix command line. To install under Windows, the Cygwin environment
must be installed. Download and installation information can be found
at http://www.cygwin.com.
The following Cygwin packages are required:
- Utils -- patch
- Utils -- rebase
- Interpreters -- python
- Devel -- make
- Devel -- gcc
(if no Microsoft, Intel, or Borland C++ compiler available)
Installing TAO:
- Prior to installing TAO, the machine must have a working installation of the PETSc software package,
available via http://www.mcs.anl.gov/petsc.
TAO uses portable makefile capabilities as well as parallel linear
algebra support within PETSc. The current version of TAO (2.2.0) requires
version 3.4.x of PETSc.
Do NOT configure PETSc with complex arithmetic (--with-scalar-type=complex)
Other useful PETSc options are:
- In the TAO home directory, type
make
all
to build the TAO libraries.
- Check the output from the installation to determine whether
any
errors occurred during the installation process. Note that there will probably
be some small numerical differences because of the architecture, compiler, or
blas/lapack libraries. If there are any errors, please let us know what they
were (and any solutions you may have found). But first see the file bug
reporting for help with common problems. If errors have been
encountered and you would like assistance from the TAO developers, then
redirect all output from the installation to a file, for example, using
the command
make
all >& make.log
and send this to us as discussed in the bug
reporting instructions.
Test Programs:
- If the installation went smoothly, then try running some
test
examples with the command
make tao_testexamples
>& examples_log
- If only the uniprocessor version of TAO has been installed
(i.e.,
MPI has not been installed), then use the following command to run only
sequential examples:
make tao_testexamples_uni >& examples_log
- Examine the file examples_log for any obvious errors or
problems.
- The examples can be manually built and run one at a time by
changing to the appropriate directory (for instance, ${TAO_DIR}/src/unconstrained/examples/tutorials)
and running commands such as
make
minsurf1
mpirun minsurf1
This alternative may be preferable if make
tao_testexamples fails for some reason.
- The automatic tests may not work on systems that use a
queue and
special commands to run parallel jobs. Instead, the user can
compile and run the examples manually as discussed above.
Fortran Users:
The TAO Fortran libraries are built automatically during the
installation outlined
above. Before testing the Fortran examples, please make sure that the
C version of the
examples (discussed above) works correctly.
- To compile and test the Fortran examples, use the command
make
tao_testfortran >& fortran_log
- If only the uniprocessor version of TAO has been installed
(i.e.,
MPI has not been installed), then use the following command to run only
sequential Fortran examples:
make
tao_testfortran_uni >& fortran_uni_log
TAO Fortran programs can use the suffix .F rather than the
traditional suffix .f, so
that the TAO header files can be easily included in Fortran programs.
The Fortran chapter
within the TAO users manual provides additional details regarding the
Fortran interface.
Multiple Installations:
When building TAO for two or more configurations, such as
one for debugging and one for optimized libraries, or for machine types that share a common file system, multiple TAO directory trees are NOT
needed. A
single TAO directory can (and should) be used; TAO automatically places
the libraries for
each machine in a different location. In particular, the libraries for
a given PETSC_ARCH
are installed in the
directory, ${TAO_DIR}/${PETSC_ARCH}/lib.
Shared Libraries:
TAO supports the use of shared libraries on supported architectures
to enable faster linking
and smaller executables. In order to enable shared libraries, PETSc
must be configured with the option --with-shared-libraries.
Support:
Please let us know of any difficulties in installing and using the
software. We are willing to assist with an installation if a
problem remains unresolved. Our contact information is listed here
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