This is an autotools-based build system to build and install MUltifrontal Massively Parallel sparse direct Solver (MUMPS). This installation of MUMPS is used by some other COIN-OR projects.
This version of ThirdParty-Mumps retrieves and builds MUMPS 5.7.2.
MUMPS source requires a Fortran 90 compiler.
MUMPS requires LAPACK to be available. configure will look for a Lapack
installation, but if that does not succeed, the flags to link with Lapack
should be specified with the --with-lapack-lflags argument of configure.
MUMPS can make use of METIS. configure will look for a METIS library and
header, but if that does not succeed, the arguments --with-metis-lflags
and --with-metis-cflags can be specified for configure.
Both Metis 4 and Metis 5 can be used with ThirdParty-Mumps.
Obtain the MUMPS source code.
Note: It is YOUR RESPONSIBILITY to ensure that you are entitled to download and use this third party package.
The shell script get.Mumps can be used to automatically download and
extract the correct version of the MUMPS source code. The script will
first try to download from from https://coin-or-tools.github.io/ThirdParty-Mumps.
If this fails, it will attempt to download from the MUMPS website: http://mumps-solver.org
The script requires wget, curl, or fetch to be available on the system
and in the shells search path ($PATH).
Run ./configure. Use ./configure --help to see available options.
Run make to build the MUMPS library.
Run make install to install the MUMPS library and header files.
MUMPS source does not compile out of the box when using GFortran 10 or higher, probably due to some incompatibilities between assumed Fortran language standards, see also issue #4.
As a workaround, configure adds -std=legacy to the Fortran compiler flags
if $FC matches *gfortran*.
This buildsystem can also build a single-precision version of MUMPS.
To do so, use the configure option --with-precision=single.
It is also possible to build both single- and double-precision variants
of MUMPS into the same library by using --with-precision=all.
This buildsystem can be instructed to change the integer type of MUMPS to
have a size of 64-bit by using the configure option --with-intsize=64.
This defines MUMPS_INTSIZE64 instead of MUMPS_INTSIZE32 in
mumps_int_def.h and instructs the Fortran compiler to use 8-byte integers.
The latter requires that the Fortran compiler is either GNU Fortran or
Intel Fortran.
When MUMPS uses 64-bit integers, also Lapack and METIS need to use 64-bit
integers. For METIS, this means that IDXTYPEWIDTH needs to be set to 8
instead of 4.