add a new aggregator selection algorithm based on the performance
model described in:
Shweta Jha, Edgar Gabriel,
'Performance Models for Communication in Collective I/O Operations'
Proceedings of the 17th IEEE/ACM Symposium
on Cluster, Cloud and Grid Computing, Workshop on Theoretical
Approaches to Performance Evaluation, Modeling and Simulation, 2017.
Signed-off-by: Edgar Gabriel <gabriel@cs.uh.edu>
This module was always intended to be a proof of concept, and was far
from complete. If/when someone implemented F08 descriptor support for
the mpi_f08 module, this commit can either be restored or used as
reference material.
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
in order to solve an egg and the chicken problem, in which mpiext need mpi-f08-types.mod
and/but use-mpi-f08[-desc] needs mpiext, add an extra step
- build fortran 2008 modules only
- build fortran 2008 mpi extensions
- and then build fortran 2008 bindings
Fixesopen-mpi/ompi#3605
Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>
This fix is related to issue #1877, and prevents the OMPI library from
messing the user level random values.
Signed-off-by: George Bosilca <bosilca@icl.utk.edu>
simply based on some local state. This is the second
part of the patch proposed for open-mpi/ompi#1183.
Signed-off-by: George Bosilca <bosilca@icl.utk.edu>
The `ompi_comm_set` function never sets `NULL` to its first argument
`ncomm`. So `NULL` check is unnecessary in its callers. Furthermore,
`NULL` check may obscure a real return code when an error occurs
if the variable is initialized to a `NULL` value.
Also, `NULL` check is added in the `ompi_comm_set` function to
avoid segmentation fault in an out-of-memory condition.
Signed-off-by: KAWASHIMA Takahiro <t-kawashima@jp.fujitsu.com>
This changes the default to 0, to avoid yields during progress in srun.
In mpirun, ompi_mpi_yield_when_idle is set to 1 if oversubscribed
otherwise 0. But the default is 1 though, and it is used in srun.
Now srun and mpirun have the same latency in non-oversubscribed cases.
Signed-off-by: Piotr Lesnicki <piotr.lesnicki@atos.net>
This fix is related to issue #1877, and prevents the OMPI library from
messing the user level random values.
Signed-off-by: George Bosilca <bosilca@icl.utk.edu>
simply based on some local state. This is the second
part of the patch proposed for open-mpi/ompi#1183.
Signed-off-by: George Bosilca <bosilca@icl.utk.edu>
Update to support passing of HWLOC shmem topology to client procs
Update use of distance API per @bgoglin
Have the openib component lookup its object in the distance matrix
Bring usnic up-to-date
Restore binding for hwloc2
Signed-off-by: Ralph Castain <rhc@open-mpi.org>
adjust the location on where the fcoll_base_file_select function is
colled to ensure that all fs level parameters are correctly set.
io/ompio: minor fixes to initialization of the stripe_size and an if statement in the
simple_grouping option.
Signed-off-by: Edgar Gabriel <gabriel@cs.uh.edu>
adjust the fcoll selection table to achieve the following:
- two_phase should not advertise itself on lustre file systems
- two_phase should advertise itself on sequential file systems (stripe_size == 0 )
- priority for dynamic, static and individual is reduced. This will lead to
two_phase being selected in scenarios where two or more components indicate
willingness to run.
Signed-off-by: Edgar Gabriel <gabriel@cs.uh.edu>
fixes an erroneous error code being returned when activating
the mca_io_ompio_sharedfp_lazy_open flag with MPI_MODE_APPEND.
fixes issue #3904
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
changing the value of mca_io_ompio_grouping_option lead to a segfault due to
a double-free problem. Remove the erroneous free statements that have been introduced
and add a note ensuring that we are not re-adding them back at that spot.
fixes issue #3903
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
