a non blocking collective might return ompi_request_null, so we should not
retain anything in that case.
Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>
(cherry picked from commit open-mpi/ompi@63d3ccde9d)
Since ompi_coll_base_nbc_request_t is to be used in an
opal_free_list_t, it must be returned into a "clean" state.
So cleanup some data in the callback completion subroutines.
This fixes a regression introduced in open-mpi/ompi@0fe756d416
Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>
(cherry picked from commit open-mpi/ompi@0862c409f1)
base ompi_coll_libnbc_request_t on top of ompi_coll_base_nbc_request_t
to correctly support the retention of datatypes/operators
This fixes a regression introduced in open-mpi/ompi@0fe756d416
Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>
(cherry picked from commit open-mpi/ompi@f8eef0fde9)
Provide a missing header and paren
Thanks to @zerothi for the assistance
Signed-off-by: Ralph Castain <rhc@pmix.org>
(cherry picked from commit bd5a1765ee)
Override the defaults when provided. Ignore LSF binding file if user
overrides by specifying a policy.
Fixes#6631
Signed-off-by: Ralph Castain <rhc@pmix.org>
(cherry picked from commit ea0dfc3218)
Start optimizing the code.
This commit divides the operations in 2 parts, the first, outside the
critical part, deals with partial blocks of predefined elements, and the
second, inside the critical path, only deals with full blocks of
elements. This reduces the number of expensive operations in the
critical path and results in a decent performance increase.
Signed-off-by: George Bosilca <bosilca@icl.utk.edu>
Amazing how a bad instruction scheduling can have such a drastic impact
on the code performance. With this change, the get a boost of at least
50% on the performance of data with a small blocklen and/or count.
Signed-off-by: George Bosilca <bosilca@icl.utk.edu>
Optimize contiguous loops by collapsing them into a single element.
During datatype optimization collapse similar elements into larger
blocks.
Signed-off-by: George Bosilca <bosilca@icl.utk.edu>
Upon detecting a datatype loop representation skip the entire loop
according the the remaining space.
Signed-off-by: George Bosilca <bosilca@icl.utk.edu>
- optimize handling of contiguous with gaps datatypes.
- fixes a performance issue for all datatypes with a count of 1.
- optimize the pack/unpack of contiguous with gaps datatype.
- optimize the case of blocklen == 1
Signed-off-by: George Bosilca <bosilca@icl.utk.edu>
Move toward a base type of vector (count, type, blocklen, extent, disp)
with disp and extent applying toward the count repertition and blocklen
being a contiguous memory of type type.
Implement 2 optimizations on this description used during type_commit:
- collapse: successive similar datatype descriptions are collapsed
together with an increased count.
- fusion: fuse successive datatype descriptions in order to minimize the
number of resulting memcpy during pack/unpack.
Fixes at the OMPI datatype level including:
- Fix the create_hindexed and vector creation.
- Fix the handling of [get|set]_elements and _count.
- Correctly compute the dispacement for block indexed types.
- Support the MPI_LB and MPI_UB deprecation, aka. OMPI_ENABLE_MPI1_COMPAT.
Signed-off-by: George Bosilca <bosilca@icl.utk.edu>
Use linear with sync alltoall algorithm for certain message/comm size
ranges. Does not affect default fixed decision, unless HPCX (with its
custom parameters) is used or corresponding mca is set.
Signed-off-by: Mikhail Brinskii <mikhailb@mellanox.com>
(cherry picked from commit 404c480068)
These issues were introduced in the recent commit b71af0eca0.
This commit fixes Coverity CID 1451661 and 1451660.
Though `c_info` part was an actual bug, the `c_sendtypes` part was not.
Signed-off-by: KAWASHIMA Takahiro <t-kawashima@jp.fujitsu.com>
(cherry picked from commit open-mpi/ompi@facf8c5e98)
- ignore sendcounts, sendispls and sendtypes arguments when MPI_IN_PLACE is used
- use the right size when an inter-communicator is used.
Thanks Markus Geimer for reporting this.
Refs. open-mpi/ompi#5459
Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>
(cherry picked from commit open-mpi/ompi@cdaed89d04)
Commit d7053a3 broke things for the case when Open MPI 4.0.x is built
without UCX support. Problem was it was trying to partially initialize
the btl to try and delay printing of a help message till wireup. Well
this sort of doesn't work in all cases. Rather than keep piling on
changes to support a help message for a BTL that we are deprecating, take
a keep it simple stupid approach.
So, revert most of d7053a3 and instead put the help message back in the
original location, during scan of ports of the available HCAs to check
for whether or not link layer for that port is configured for ethernet or infiniband.
If Open MPI was built with UCX support, don't emit the help message, if
UCX was not linked in, emit the help message.
Verified on a system with connectX5 HCAs configured with two ports configured
for ethernet and two for infiniband.
relates to #6785
Signed-off-by: Howard Pritchard <howardp@lanl.gov>
MPI standard states a user MPI_Op and/or user MPI_Datatype can be free'd
after a call to a non blocking collective and before the non-blocking
collective completes.
Retain user (only) MPI_Op and MPI_Datatype when the non blocking call is
invoked, and set a request callback so they are free'd when the MPI_Request
completes.
Thanks Thomas Ponweiser for reporting this
Fixesopen-mpi/ompi#2151Fixesopen-mpi/ompi#1304
Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>
(cherry picked from commit open-mpi/ompi@0fe756d416)
Signed-off-by: Aurelien Bouteiller <bouteill@icl.utk.edu>
Correctly bubble up errors in NBC collective operations
Signed-off-by: Aurelien Bouteiller <bouteill@icl.utk.edu>
The error field of requests needs to be rearmed at start, not at create
Signed-off-by: Aurelien Bouteiller <bouteill@icl.utk.edu>
(cherry picked from commit open-mpi/ompi@65660e5999)
