This configure CLI option should probably have been removed as part of
a6d6be2853. Regardless, the #defines it
sets no longer exist in the code base at all, so they should be
removed. Also remove the text about it in README.
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
Now that all use of libibverbs is gone from Open MPI, and all
verbs-based configury is also removed, update README to remove all
references to --with-verbs.
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
So long BTL openib! After many years of (mostly) faithful service, it
is time to remove the openib BTL. It has been fully replaced by other
components, such as the UCX PML and OFI MTL.
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
The feature of persistent collectives is approved in the Sept. 2018
MPI Forum meeting and 2018 Draft Specification of the MPI standard is
published during SC18.
Signed-off-by: KAWASHIMA Takahiro <t-kawashima@jp.fujitsu.com>
Per https://github.com/open-mpi/ompi/issues/6058, add some text about
building on network filesystem, particularly with respect to
filesystem timestamps.
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
Per feedback from https://github.com/open-mpi/ompi/pull/6028, remove
"+ob1" from the sentence to emphasize that it's only IB usage through
openib that is deprecated/superceded (i.e., ob1 is definitely not
deprecated).
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
Move the UCX and MXM text up to flow better with the rest of the
text+content. Also emphasize that MXM is deprecated.
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
Specifically mention our intended behavior about /usr and /usr/lib
(and why we don't add /usr/lib[64] and /usr/local/lib[64] to RPATH).
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
As documented in #4563 and #3697, there is an issue on ARM and
POWER platforms when the atomic fifo assembly isn't inlined,
which manifests as a hang. Document the issue and the
work-around until a proper fix is committed.
Signed-off-by: Brian Barrett <bbarrett@amazon.com>
Give packagers a configure CLI option to set the value of the MCA
variable mca_base_component_show_load_errors.
The --disable form of this option is intended for Open MPI packagers
who tend to enable support for many different types of networks and
systems in their packages. For example, consider a packager who
includes support for both the FOO and BAR networks in their Open MPI
package, both of which require support libraries (libFOO.so and
libBAR.so). If an end user only has BAR hardware, they likely only
have libBAR.so available on their systems -- not libFOO.so. Disabling
load errors by default will prevent the user from seeing potentially
confusing warnings about the FOO components failing to load because
libFOO.so is not available on their systems.
Conversely, system administrators tend to build an Open MPI that is
targeted at their specific environment, and contains few (if any)
components that are not needed. In such cases, they might want their
users to be warned that the FOO network components failed to load
(e.g., if libFOO.so was mistakenly unavailable), because Open MPI may
otherwise silently failover to a slower network path for MPI traffic.
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
The clang 4.0 compiler that ships with FreeBSD 11.1 doesn't
work well with OpenMPI. Workaround is to use a GNU compiler.
Related to #3992.
[skip ci]
Signed-off-by: Howard Pritchard <howardp@lanl.gov>
