Hypre

Hypre is a massively parallelizable linear solver library written and designed for use in C++. It provides many nice features and objects beyond simple "matrix" or "vector" objects - these include grids, meshes, and stencils. It was developed at Lawrence Livermore National Lab.

Installation

Installing Hypre can be tricky. The documentation will give much more in-depth details than this page. Links to the documentation are available at https://computation.llnl.gov/casc/hypre/software.html .

Dependencies

Hypre will require an installation of MPI on your machine. I use LAM MPI, but you can also use OpenMPI.

Configuration

Download the hypre tarball and decompress it. Put your configure wrapper into the src/ directory of the decompressed Hypre tarball.

This configure line has been used to build Hypre 2.0.0, which is the latest stable release. It has not been tested on beta releases.

#!/bin/sh
#
# run configure
# make
# make install

./configure \
    --with-MPI-include=/path/to/lam-mpi/include \
    --with-MPI-lib-dirs=/path/to/lam-mpi/lib \
    --with-MPI-libs="mpi lam pmpi util" \
    --prefix=/path/to/hypre \
    \
    F77=/usr/local/bin/gfortran \
    \
    CFLAGS=-DMPIPP_H \
    CXXFLAGS=-DMPIPP_H

The -DMPIPP_H compiler flags are only required for LAM MPI and OpenMPI; they are not needed if you use any other MPI install (e.g. MPICH).

Installation Errors

If you see an error like this:

/usr/bin/ld: /path/to/hypre/src/utilities/dlamch.o: 
relocation R_X86_64_32S against 'a local symbol' can not be used when making 
a shared object; recompile with -fPIC
/path/to/hypre/src/utilities/dlamch.o: 
could not read symbols: Bad value
collect2: ld returned 1 exit status

Then you need to edit /path/to/hypre/src/lapack/Makefile, and add an -fPIC flag, as shown below:

dlamch.o : dlamch.c ${LAPACK_HEADERS}
    ${CC} -c -fPIC dlamch.c

Examples

This examples section is a stub. A team of expertly-trained librarian ninjas has been dispatched to research this topic, finish this examples section, and assassinate all eyewitnesses who contradict their account. They should be done pretty soon. Template:Stub Category:Stubs

Resources

Hypre home page - http://acts.nersc.gov/hypre/