In order to work around an issue with flang based compilers,
avoid declaring bind(C) constants and use plain Fortran parameter
instead.
For example,
type(MPI_Comm), bind(C, name="ompi_f08_mpi_comm_world") OMPI_PROTECTED :: MPI_COMM_WORLD
is changed to
type(MPI_Comm), parameter :: MPI_COMM_WORLD = MPI_Comm(OMPI_MPI_COMM_WORLD)
Note that in order to preserve ABI compatibility, ompi/mpi/fortran/use-mpi-f08/constants.{c,h}
have been kept even if its symbols are no more referenced by Open MPI.
Refs. open-mpi/ompi#7091
Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>
There was a path where OPAL_CHECK_ALPS would exit its testing but
still leave `opal_check_cray_alps_happy` blank. Fix that by setting
it to "no".
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
This commit fixes a configure bug that caused flow control to be
disabled regardless of the configure options used.
Signed-off-by: Todd Kordenbrock <thkgcode@gmail.com>
This commit fixes a segfault in mtl-portals4 finalize(). The segfault
occurs if finalize() is called without any calls to add_procs(). This
commit resolves the segfault by skipping the flow control fini() call if
Portals4 was not initialized.
Signed-off-by: Todd Kordenbrock <thkgcode@gmail.com>
zero-size derived datatypes are now flagged as OPAL_DATATYPE_FLAG_CONTIGUOUS
so update mca_pml_ucx_init_datatype() to correctly handle them.
Since 'size' is a 'size_t', the assertion can simply be removed.
Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>
This commit updates the coll/basic component to correctly order sends
and receives for cartesian communicators with cyclic boundaries. This
addresses an issue identified by mpi-forum/mpi-issues#153. This issue
occurs when the size in any dimension is 1. This gives the same
neighbor in the positive and negative directions. The old code was
sending and receiving in the same order so the -1 buffer contained
the +1 result and vise-versa. The problem is addressed by using
unique tags for each send. This should cover both the case where
overtaking is allowed and is not allowed. The former case will be
possible is a MPI_Cart_create_with_info() call is added to the
standard.
Signed-off-by: Nathan Hjelm <hjelmn@google.com>
bad side effect occurs when CPPFLAGS is set in the environment,
so set it (and LDFLAGS too) on the configure command line.
Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>
Change the ncounts argument to MPI_Count and use
MPI_Status_set_elements_x for enabling read/write operations beyond
the 2GB limit.
Thanks to Richard Warren from the HDF5 group for reporting the issue
and providing the suggested fix for romio.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
