In common_ompi_aggregators calc_cost routine:
do not cast the real division to an int intermediately.
This patch removes the obsolete int variable c and assigns
the result of the P_a/P_x division directly to n_as.
With the intermediate int c variable, n_as gets 0 if P_a < P_x,
resulting in a division by 0 when computing n_s.
Signed-off-by: Harald Klimach <harald.klimach@uni-siegen.de>
(cherry picked from commit e222a04ae57e5d09b8559f3c111de1f10a47246a)
When using an empty fileview, a division by zero bug can occur in ompio. Not entirely sure why the problem did not show up previously, but some recent changes trigger that bug in one of our tests.
This pr is part of a fix applied in commit f6b3a0a
Fixes Issue #6703
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
If user sets HCOLL_EXTERNAL_UCM_EVENTS=1 then we try init opal
memory framework and register a mem release cb. Otherwise, rely on ucx.
Signed-off-by: Valentin Petrov <valentinp@mellanox.com>
- in case if multithreading requested but not supported
disable PML UCX
Signed-off-by: Sergey Oblomov <sergeyo@mellanox.com>
(cherry picked from commit a3578d9ece2b40a349529e7b223df50b0aac64aa)
Atomic lock must progress local worker while obtaining the remote lock,
otherwise an active message which actually releases the lock might not
be processed while polling on local memory location.
(picked from master 9d1994b)
Signed-off-by: Yossi Itigin <yosefe@mellanox.com>
The rdma_frag attached to the send request was not correctly released
upon request completion, leaking until MPI_Finalize. A quick solution
would have been to add RDMA_FRAG_RETURN at different locations on the
send request completion, but it would have unnecessarily made the
sendreq completion path more complex. Instead, I added the length to
the RDMA fragment so that it can be completed during the remote ack.
Be more explicit on the comment.
The rdma_frag can only be freed once when the peer forced a protocol
change (from RDMA GET to send/recv). Otherwise the fragment will be
returned once all data pertaining to it has been trasnferred.
NOTE: Had to add a typedef for "opal_atomic_size_t" from master into
opal/threads/thread_usage.h into this cherry pick (it is in
opal/include/opal_stdatomic.h on master, but that file does not exist
here on the v4.0.x branch).
Signed-off-by: George Bosilca <bosilca@icl.utk.edu>
(cherry picked from commit a16cf0e4dd6df4dea820fecedd5920df632935b8)
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
In case of using a btl_put in ob1, the handle of the locally registered
memory is sent with a PUT control message. In the current master code
the sent handle is necessary the handle in the frag but if the handle
has been successfully registered in the request, the frag structure does
not have any valid handle and all fragments use the request one.
I suggest to check if the handle in the fragment is valid and if not to
send the handle from the request.
Signed-off-by: Brelle Emmanuel <emmanuel.brelle@atos.net>
(cherry picked from commit e630046a4b82bc01379fb055af4c0e414c2a8e8f)
The new routine transfers the data asynchronously from the source PE to all
PEs in the OpenSHMEM job. The routine returns immediately. The source and
target buffers are reusable only after the completion of the routine.
After the data is transferred to the target buffers, the counter object
is updated atomically. The counter object can be read either using atomic
operations such as shmem_atomic_fetch or can use point-to-point synchronization
routines such as shmem_wait_until and shmem_test.
Signed-off-by: Mikhail Brinskii <mikhailb@mellanox.com>
(cherry picked from commit 2ef5bd8b3671f1e10caf00d06d66d120eac9c5be)
There are a couple MPI_Alltoallv calls in ad_gpfs_aggrs.c where the
send/recv data comes from places like req[r].lens, and the send
buffer and send displacements for example were being calculated as
sbuf = pick one of the reqs: req[bottom].lens
sdisps[r] = req[r].lens - req[bottom].lens
which might be okay if the .lens was data inside of req[] so they'd
all be close to each other. But each .lens field is just a pointer
that's malloced, so those addresses can be all over the place, so the
integer-sized sdisps[] isn't safe.
I changed it to have a new extra array sbuf and rbuf for those two
Alltoallv calls, and copied the data into the sbuf from the same
locations it used to be setting up the sdisps[] at, and after the
Alltoallv I copy the data out of the new rbuf into the same
locations it used to be setting up the rdisps[] at.
For what it's worth I was able to get this to fail -np 2 on a GPFS
filesystem with hints romio_cb_write enable. I didn't whittle the
test down to something small, but it was failing in an
MPI_File_write_all call.
Signed-off-by: Mark Allen <markalle@us.ibm.com>
(cherry picked from commit d85cac8f1a11495415b67ecab69d2ae1cd19d155)
In the case the btl_get fails Ob1 tries to fallback on btl_put first but
the return code was ignored. So the code fell back on both btl_put and
btl_send.
Signed-off-by: Brelle Emmanuel <emmanuel.brelle@atos.net>
(cherry picked from commit 9c689f2225d29aa152627f39bab841afead254af)
We missed an assert to check if ALLOW_OVERTAKE is set or not before
validating the sequence number and this will cause deadlock.
Signed-off-by: Thananon Patinyasakdikul <tpatinya@utk.edu>
(cherry picked from commit 0263456cf4e99efc67d38acd100cf948e0399d63)
- there was a set of UCX related issues reported which caused
by mmap API hooks conflicts. We added diagnostic of such
problems to simplify bug-resolving pipeline
Signed-off-by: Sergey Oblomov <sergeyo@mellanox.com>
(cherry picked from commit d8e3562bae700d84873c1d5ca9c45c846d7387ed)
For remote node peers pack smaller worker address, which contains
network device addresses only. This would reduce amount of OOB traffic
during startup.
Signed-off-by: Mikhail Brinskii <mikhailb@mellanox.com>
(cherry picked from commit 751d88192d05edb7e1912bab4e48643c6f9e1574)
mark the "self" peer OMPI_OSC_RDMA_PEER_LOCAL_BASE when
the window is dynamically created and use_cpu_atomics is set
in order to correctly handle communications to self.
Thanks Bart Janssens for reporting this issue.
Refs. open-mpi/ompi#6394
Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>
(back-ported from commit open-mpi/ompi@fe05fcc11a)
Update the OPAL_CHECK_OFI configury macro:
- Make it safe to call the macro multiple times:
- The checks only execute the first time it is invoked
- Subsequent invocations, it just emits a friendly "checking..."
message so that configure output is sensible/logical
- With the goal of ultimately removing opal/mca/common/ofi, rename the
output variables from OPAL_CHECK_OFI to be
opal_ofi_{happy|CPPFLAGS|LDFLAGS|LIBS}.
- Update btl/usnic and mtl/ofi for these new conventions.
- Also, don't use AC_REQUIRE to invoke OPAL_CHECK_OFI because that
causes the macro to be invoked at a fairly random time, which makes
configure stdout confusing / hard to grok.
- Remove a little left-over kruft in OPAL_CHECK_OFI, too (which
resulted in an indenting change, making the change to
opal_check_ofi.m4 look larger than it really is).
Thanks Alastair McKinstry for the report and initial fix.
Thanks Rashika Kheria for the reminder.
Updated from master cherry pick: the OFI BTL does not exist on the
v4.0.x branch. Therefore, did not include the OFI BTL changes on
master in this cherry pick.
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
(cherry picked from commit f5e1a672ccd5db127e85e1e8f6bcfeb8a8b04527)
Similar to #6286 rounding number of bytes into a single precision floating point value to round up the result of a division is a potential risk due to rounding errors.
- remove floating point operations for `round up`
- removes floating point conversion for round down (native behavior of integer division)
Signed-off-by: René Widera <r.widera@hzdr.de>
(cherry picked from commit a91fab80a1e55e1df15f649e18d247e5d4654eb9)
This commit fixes a problem reported on the mailing list with
individual writes larger than 512 MB.
The culprit is a floating point division of two large, close values.
Changing the datatypes from float to double (which is what is being
used in the fcoll components) fixes the problem.
See issue #6285 and
https://forum.hdfgroup.org/t/cannot-write-more-than-512-mb-in-1d/5118
Thanks for Axel Huebl and René Widera for reporting the issue.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
(cherry picked from commit c0f8ce0fff4684b670135043dd150abc9d83d988)
treematch/km_partitioning.c #include "config.h",
but there is no such file when the embedded treematch is used.
In order to prevent the embedded treematch from incorrectly using
the config.h from the embedded hwloc, generate a dummy config.h.
Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>
(cherry picked from commit 0aeb27f77650d3ee97e17e770c9e5aa487d5e1f5)
Refs https://github.com/open-mpi/ompi/issues/6227. Thanks to
George Marselis for reporting.
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
(cherry picked from commit 62321be186dd7d3efcedc2e801f226f6660ea0c4)
The intention of lowering the priority when all processes are local
was to favor Vader BTL. However, in builds including the OFI MTL it
gets selected instead.
Reviewed-by: Spruit, Neil R <neil.r.spruit@intel.com>
Reviewed-by: Gopalakrishnan, Aravind <aravind.gopalakrishnan@intel.com>
Signed-off-by: Matias Cabral <matias.a.cabral@intel.com>
(cherry picked from commit fc8582c5606b7a3d1b711f8f7b6144808290a48f)
without this fix, an error handler invoked on pml_ucx request would
segfault while trying to dereference requests[i]->req_mpi_object.comm
(picked from master f36eeef)
Signed-off-by: Yossi Itigin <yosefe@mellanox.com>
- added UCX version evaluation to set OSC UCX priority
Signed-off-by: Sergey Oblomov <sergeyo@mellanox.com>
(cherry picked from commit e91f214982391b8e1b26be39147c357d32b8380e)
- OSC/UCX module set priority to 200 to be used by default
Signed-off-by: Sergey Oblomov <sergeyo@mellanox.com>
(cherry picked from commit 36934a8bb2484c3d27d14683d65012ff422334f4)
PR #5450 addresses MPI_IN_PLACE processing for basic collective algorithms.
But in conjunction with that, we need to check for MPI_IN_PLACE in tuned paths
as well before calling ompi_datatype_type_size() as otherwise we segfault.
MPI spec also stipulates to ignore sendcount and sendtype for Alltoall and
Allgatherv operations. So, extending the check to these algorithms as well.
Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@intel.com>
(cherry picked from commit 88d781056f43934a93e16db556b340e72cdd3742)
