The following are command line options to set the default for various
MPI API behaviors that can be used with configure
:
--with-mpi-param-check[=VALUE]
: Whether or not to check MPI function parameters for errors at runtime. The followingVALUE
s are permitted:always
: MPI function parameters are always checked for errorsnever
: MPI function parameters are never checked for errorsruntime
: Whether MPI function parameters are checked depends on the value of the MCA parametermpi_param_check
(default: yes).yes
: Synonym for "always" (same as--with-mpi-param-check
).no
: Synonym for "never" (same as--without-mpi-param-check
).
If
--with-mpi-param
is not specified,runtime
is the default.--disable-mpi-thread-multiple
: Disable the MPI thread levelMPI_THREAD_MULTIPLE
(it is enabled by default).--disable-ft
: Disable the User-Level Fault Mitigation (ULFM) support in Open MPI (it is enabled by default).:ref:`See the ULFM section <ulfm-label>` for more information.
--enable-mpi-java
: Enable building of an EXPERIMENTAL Java MPI interface (disabled by default). You may also need to specify--with-jdk-dir
,--with-jdk-bindir
, and/or--with-jdk-headers
.Warning
Note that this Java interface is INCOMPLETE (meaning: it does not support all MPI functionality) and LIKELY TO CHANGE. The Open MPI developers would very much like to hear your feedback about this interface.
:ref:`See the Java section <open-mpi-java-label>` for many more details.
--enable-mpi-fortran[=VALUE]
: By default, Open MPI will attempt to build all 3 Fortran bindings:mpif.h
, thempi
module, and thempi_f08
module. The followingVALUE
s are permitted:all
: Synonym foryes
.yes
: Attempt to build all 3 Fortran bindings; skip any binding that cannot be built (same as--enable-mpi-fortran
).mpifh
: Only buildmpif.h
support.usempi
: Only buildmpif.h
andmpi
module support.usempif08
: Buildmpif.h
,mpi
module, andmpi_f08
module support.none
: Synonym forno
.no
: Do not build any MPI Fortran support (same as--disable-mpi-fortran
). This is mutually exclusive with building the OpenSHMEM Fortran interface.
--enable-mpi-ext[=LIST]
: Enable Open MPI's non-portable API extensions.LIST
is a comma-delmited list of extensions. If noLIST
is specified, all of the extensions are enabled.See the "Open MPI API Extensions" section for more details.
--disable-mpi-io
: Disable built-in support for MPI-2 I/O, likely because an externally-provided MPI I/O package will be used. Default is to use the internal framework system that uses the ompio component and a specially modified version of ROMIO that fits inside the romio component--disable-io-romio
: Disable the :ref:`ROMIO MPI-IO <label-romio-reference>` component from being compiled. This is a deprecated mechanism; it is effectively the same as addingio-romio341
to the list of items passed to--enable-mca-no-build
.--with-io-romio-flags=FLAGS
: PassFLAGS
to the ROMIO distribution configuration script. This option is usually only necessary to pass parallel-filesystem-specific preprocessor/compiler/linker flags back to the ROMIO system.--disable-io-ompio
: Disable the ompio MPI-IO component--enable-sparse-groups
: Enable the usage of sparse groups. This would save memory significantly especially if you are creating large communicators. (Disabled by default)