In order for this to work, error management needs to also be added to
NBC, from separate PR
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>
using the standard $USER and $HOSTNAME environment variables
to make reproducible builds possible.
See https://reproducible-builds.org/ for why this is good.
This helps improve issue #3759
Signed-off-by: Bernhard M. Wiedemann <bwiedemann@suse.de>
Some compilers complain when comparing signed and unsigned. romio321
was doing just this. The check is meant to check whether a size (which
is an ADIO_Offset-- a signed number) will work with memcpy which takes
a size_t. To silence the warning I added a new type (ADIO_Size) which
is an unsigned type and cast the ADIO_Offset to this new type.
Fixes#5951
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
The monitoring PML hides it's existence from the OMPI infrastructure by
removing itself from the list of PML loaded components, remaining hidden
until MPI_Finalize.
Signed-off-by: George Bosilca <bosilca@icl.utk.edu>
With this patch the best PML is selected earlier, before finalizing
the others PML. This provides a simpler mechanism to intercept and
highjack the PML (as done in the monitoring PML)
Signed-off-by: George Bosilca <bosilca@icl.utk.edu>
An implementation of R. Rabenseifner's algorithm for MPI_Iallreduce.
This algorithm is a combination of a reduce-scatter implemented with recursive vector halving
and recursive distance doubling, followed either by an allgather.
Limitations:
-- count >= 2^{\floor{\log_2 p}}
-- commutative operations only
-- intra-communicators only
Signed-off-by: Mikhail Kurnosov <mkurnosov@gmail.com>
check for providing a data representation that is actually supported
by ompio.
Add also one check for a non-NULL pointer in mpi/c/file_set_view
for the data representation.
Also fixes parts of issue #5643
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
Several fixes to string handling:
1. strncpy() -> opal_string_copy() (because opal_string_copy()
guarantees to NULL-terminate, and strncpy() does not)
2. Simplify a few places, such as:
* Since opal_string_copy() guarantees to NULL terminate, eliminate
some memsets(), etc.
* Use opal_asprintf() to eliminate multi-step string creation
There's more work that could be done; e.g., this commit doesn't
attempt to clean up any strcpy() usage.
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
this ensures that all processes are done modifying a file
before syncing. Fixes an error in the testmpio testsuite.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
return MPI_ERR_ARG if the size of the fileview is not a
multiple of the size of the etype provided.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
return MPI_ERR_ACCESS if the user tries to read from a file
that was opened using MPI_MODE_WRONLY
return MPI_ERR_READ_ONLY if the user tries to write a file
that was opened using MPI_MODE_RDONLY
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
While we require C99 to build Open MPI, we do not require C99 to build
user MPI applications. As such, we shouldn't have C99-style comments
(i.e., "//"-style) in mpi.h.in.
Thanks to @AdamSimpson for reporting the issue.
This commit simply converts a //-style comment to a /**/-style
comment. No code or logic changes.
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
Implements recursive doubling algorithm for MPI_Iallgather.
The algorithm can be used only for power-of-two number of processes.
Signed-off-by: Mikhail Kurnosov <mkurnosov@gmail.com>
Make sure all pending communications are done on all ranks before
closing the window. This way it will be safe to close the endpoints when
closing the component.
Signed-off-by: Yossi Itigin <yosefe@mellanox.com>
An implementation of R. Rabenseifner's algorithm for MPI_Ireduce.
This algorithm is a combination of a reduce-scatter implemented with recursive vector halving
and recursive distance doubling, followed either by a gather.
Limitations:
-- count >= 2^{\floor{\log_2 p}}
-- commutative operations only
-- intra-communicators only
Signed-off-by: Mikhail Kurnosov <mkurnosov@gmail.com>
OpenJDK 11 changed the default javadoc output HTML version to HTML 5
from HTML 4.01. It causes an error on building Open MPI configured
with `--enable-mpi-java` (default: disable). This fix is compatible
with older OpenJDK.
I don't know whether this problem exists with other vender's JDKs.
But this fix should be compatible with other JDKs because the new
syntax is used in other places in the same file.
Thanks to Siegmar Gross for the bug report.
Signed-off-by: KAWASHIMA Takahiro <t-kawashima@jp.fujitsu.com>
The Open MPI code base assumed that asprintf always behaved like
the FreeBSD variant, where ptr is set to NULL on error. However,
the C standard (and Linux) only guarantee that the return code will
be -1 on error and leave ptr undefined. Rather than fix all the
usage in the code, we use opal_asprintf() wrapper instead, which
guarantees the BSD-like behavior of ptr always being set to NULL.
In addition to being correct, this will fix many, many warnings
in the Open MPI code base.
Signed-off-by: Brian Barrett <bbarrett@amazon.com>
Fortran bindings were added to persistent collectives in 9e0115c980
but man was not updated.
Signed-off-by: KAWASHIMA Takahiro <t-kawashima@jp.fujitsu.com>
Changes of nonblocking collectives in e98d794e8b and f750c6932c
are applied to persistent collectives.
Signed-off-by: KAWASHIMA Takahiro <t-kawashima@jp.fujitsu.com>
On OS X, where #pragma ident and #ident aren't supported, the
use of a static const star that was never used was generating
a warning (and, it should be noted, was useless, because the
compiler would optimize it away). Fix up the ident declaration
so that it is only created once in libmpi_mpifh.la.
Signed-off-by: Brian Barrett <bbarrett@amazon.com>
Following the commit f750c6932c, I compared
`ompi/mpi/fortran/use-mpi-f08/*.F90` and
`ompi/mpi/fortran/use-mpi-f08/profile/p*.F90`, and
`ompi/mpi/fortran/use-mpi-f08/mod/mpi-f08-interfaces.F90` and
`ompi/mpi/fortran/use-mpi-f08/mod/pmpi-f08-interfaces.F90`.
There are many differences. Some are bugs of `MPI_*`, some are
bugs of `PMPI_*`. I'm not sure how these bugs affect applications.
To make it easy to compare these files future, I also removed
editorial differences.
Signed-off-by: KAWASHIMA Takahiro <t-kawashima@jp.fujitsu.com>
When --enable-mpi1-compatibility was specified, the ompi_mpi_ub/lb
symbols were #if'ed out of mpi.h. But the #defines for MPI_UB/LB
still remained. This commit also #if's out the MPI_UB/LB macros when
--enable-mpi1-compatibility is specified.
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
The old/deprecated form of the file errhandler typedef used "fn" as a
suffix. The new form uses the name "function".
The MPI API typedef name has already been updated to use "function";
this commit updates the internal Open MPI typedef to use the name
"function" to match the MPI API name and avoid confusion.
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
Change default provider selection logic for the OFI MTL. The
old logic was whitelist-only, so any new HPC NIC provider would
have to ask users to do extra work or wait for an OMPI release
to be whitelisted. The reason for the logic was to avoid
selecting a "generic" provider like sockets or shm that would
frequently have worse performance than the optimized BTL options
Open MPI supports.
With the change, we blacklist the (small, relatively static) list
of providers that duplicate internal capabilities. Users can use
one of thse blacklisted providers in two ways: first, they can
explicitly request the provider in the include list (which will
override the default exclude list) and second, the can set a new
empty exclude list.
Since most HPC networks require special libraries and therefore
an explicit build of libfabric, it is highly unlikely that this
change will cause users to use libfabric when they didn't want to
do so. It does, however, solve the whitelisting problem.
Signed-off-by: Brian Barrett <bbarrett@amazon.com>
Corrected the signatures of the collectives used by the Fortran 2008
interface to state correct intent for inout arguments and use the
ASYNCHRONOUS attribute in non-blocking collective calls.
Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>
Corrected the signatures of the collectives used by the Fortran 2008
interface to state correct intent for inout arguments and use the
ASYNCHRONOUS attribute in non-blocking collective calls. Also corrected
the C-bindings in Fortran accordingly
Signed-off-by: Philipp Otte <philipp.j.otte@googlemail.com>
Implements recursive doubling algorithm for MPI_Iexscan.
The algorithm preserves order of operations so it can be used both
by commutative and non-commutative operations.
The MCA parameter 'coll_libnbc_iexscan_algorithm' was added for dynamic
algorithm selection.
Signed-off-by: Mikhail Kurnosov <mkurnosov@gmail.com>
Implements recursive doubling algorithm for MPI_Iscan. The algorithm preserves order of operations so it can be used both by commutative and non-commutative operations.
The MCA parameter coll_libnbc_iscan_algorithm was added for dynamic algorithm selection.
Signed-off-by: Mikhail Kurnosov <mkurnosov@gmail.com>
- do not generate bindings for pompi_FOO_f symbols
(they are simply not used anywhere)
- move ompi_FOO_f bindings out of mpi_f08.mod into
ompi_mpifh_bindings.mod that is only used at build time
Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>
We previously needed to have empty targets because AM couldn't handle
having an AM_CONDITIONAL was targets in the "if" statement but not in the
"else". :-(
That now appears as an old automake bug that has been fixed,
so cleanup some Makefile.am
Thanks Jeff for the pointer.
Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>
The parameter passed to NBC_Return_handle() was incorrectly casted
and not dereferenced.
Thanks Yossi for the bug report.
Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>
Move includes to top of file. Set some #defines so that
monitoring_prof.c compiles without warning (as identified by gcc 8 on
MacOS). Also ensure to include the internal Open MPI "mpi.h" file
(not some random system <mpi.h> file).
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
Gcc 8 identified hb_tree_csearch() as an infinite recursion, and it
turns out that we never call this function, anyway. So just remove
it.
Fixes#5670.
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
This commit updates the entire codebase to use specific opal types for
all atomic variables. This is a change from the prior atomic support
which required the use of the volatile keyword. This is the first step
towards implementing support for C11 atomics as that interface
requires the use of types declared with the _Atomic keyword.
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
always initialize 'size'.
Only the a2a_sched_diss() alltoall algorithm is impacted,
and this algo is currently unused, so there is no need
to backport nor update the NEWS file for now.
Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>
We need to return a persistent request.
`ompi_request_empty` is not a persistent request.
Signed-off-by: KAWASHIMA Takahiro <t-kawashima@jp.fujitsu.com>
file_delete triggers underneath the hood the full component selection
logic, since we do not have a file handle, just a file name.
As part of the selection logic, we have to however initiate the
framework-open of the fs component in case of ompio, since ompio
will call the delete function of the selected fs componentn, which
is based on the file system where the file is located.
This was not handled correctly so far. The problem however only
shows up if the first I/O operatin to be executed is a file_delete,
other wise the file_open will lead to the correct opening and initialization
of the fs framework. This commit ensures that we do the right thing
even if file_delete is the first file I/O operation in the application.
Fixes issue #5611
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
If an application opens a file for reading from multiple processes
using MPI_COMM_SELF (or another communicator that has distinct
process groups but the same comm-id, as can happen as the result
of comm_split), the naming chosen for the lockedfile or the mmapped
file used by the sharedfp/sm component would collide. This patch
ensures that the filename is different by integrating the process id
of rank 0 for each sub-communicator.
This fixes one aspect of the problem reported in github issue 5593
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
The aggregation code in osc/rdma is currently broken and will likely
not be reused. This commit cleans it out.
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
When an application is not using multiple threads to call into MPI, we can
safely ask for FI_THREAD_DOMAIN setting from the provider as it should
translate to the least amount of locking in provider.
Conversely, for applications using THREAD_MULTIPLE, explicitly ask for
FI_THREAD_SAFE to prevent race conditions.
Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@intel.com>
gcc complains about ret possibly being used uninitialized. That will
never happen but we should still quiet the warning. This commit sets
ret to a valid value.
Fixes#5513
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
the sharedfp component has to be selected and opened before
we set the default file view during file_open. Otherwise
there is a sperious error message from the sharefp_file_seek
operation that is called during the file_set_view.
Fixes Issue #5560
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
Changes made:
- Create a new fs component for IME
- Create a new fbtl component for IME
- Modify the close function of OMPIO to finalize IME if necessary
Signed-off-by: Gaëtan Bossu <gbossu@ddn.com>
Signed-off-by: Sylvain Didelot <sdidelot@ddn.com>
Since progress entries array is globally allocated, it is susceptible
to race conditions when using multi-threaded applications. Allocating it
on the stack resolves any potential races as it is thread local by default.
Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@intel.com>
Having the "make_manpage.pl" script in the ompi/ tree broke
"./autogen.pl --no-ompi" (specifically: "make distcheck" of --no-ompi
builds would break).
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
We were assuming that the array_of_indices has the same size as the
number of requests (incount), instead of the numberr of actually
active requests. While the patch is trivial, the question of the
size of the array_of_indices should be clarified in the MPI Forum.
Signed-off-by: George Bosilca <bosilca@icl.utk.edu>
This commit updates the new custom matching code in pml/ob1 so it can
not be enabled with a configure option. This commit also renames the
fuzzy-matching headers to avoid potential name conflicts and removes
the use of C reserved identifiers.
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
In the cleanup phase, it is possible for PtlMEUnlink() to return
PTL_IN_USE if the NIC is not done with the ME. This should not
be considered an error. This commit adds a retry loop around
PtlMEUnlink().
In some cases, the return value of PtlMEUnlink() and PtlCTFree()
was not checked at all. Check them with the same retry loop as
above.
Signed-off-by: Todd Kordenbrock <thkgcode@gmail.com>
When romio314 was first pulled in an extra patch was applied to it, see commit
92f6c7c1e2. Most of that patch is already present
in vanilla romio321, but the fix for MPIO_DATATYPE_ISCOMMITTED() isn't.
If that macro doesn't set err_ then some paths end up with a variable being used
uninitialized. In particular you can trace through romio321/romio/mpi-io/read.c
to see what happens with error_code. It's an uninitialized stack variable that goes
through three MPIO_CHECK_* macros none of which set it. The macros consistently set
error_code to a failure if they see something wrong, but they don't consistently
set it to success when things are fine.
And then in the last macro MPIO_CHECK_DATATYPE it tries to look at the value
of error_code that was never set.
Signed-off-by: Mark Allen <markalle@us.ibm.com>
The call of MPI_Allgatherv with sendbuf and sendtype parameters equal to MPI_IN_PLACE and NULL correspondingly, produces the segmentation fault.
The problem is that sendtype is used even when sendbuf value is MPI_IN_PLACE. But according to the standard, sendtype and sendcount parameters should be ignored in this case.
Signed-off-by: Mikhail Kurnosov <mkurnosov@gmail.com>
-Updated blocking send to directly call functionality and
set completion events expected to 0 initally. This allows for optimization for
providers that support fi_tinject up to larger sizes. This also reduces
latency on running the OFI mtl with smaller sizes without requiring
calls to progress given fi_tinject is required to complete the messaging
before returning and will not create any events in the Completion Queue.
-Updated non-blocking send to directly call fi_tsend and avoid calling
fi_tinject as the functionality should not wait on completions. This
resolves a bug where applications calling MPI_Isend can overrun the
TX buffer with small (inject) messages causing a deadlock. In addition
this improves performance in message rates by preventing
waiting on any size message to complete in non-blocking send messages.
-Created common ompi_mtl_ofi_ssend_recv function to post the ssend recv
which is common between isend and send code paths.
Signed-off-by: Spruit, Neil R <neil.r.spruit@intel.com>
- If a message for a recv that is being cancelled gets completed after
the call to fi_cancel, then the OFI mtl will enter a deadlock state
waiting for ofi_req->super.ompi_req->req_status._cancelled which will
never happen since the recv was successfully finished.
- To resolve this issue, the OFI mtl now checks ofi_req->req_started
to see if the request has been started within the loop waiting for the
event to be cancelled. If the request is being completed, then the loop
is broken and fi_cancel exits setting
ofi_req->super.ompi_req->req_status._cancelled = false;
Signed-off-by: Spruit, Neil R <neil.r.spruit@intel.com>
OFI providers may reserve some of the upper bits of the tag for
internal usage and expose it using mem_tag_format. Check for that
and adjust communicator bits as needed.
Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@intel.com>
- in sine cases persistent request was deleted during completion
callback, this cause double free of linked UCX request (assert
in debug build or hang in release build)
- UCX request is freed prior completion calback
Signed-off-by: Sergey Oblomov <sergeyo@mellanox.com>
The call of MPI_Allgather with sendbuf and sendtype parameters equal to MPI_IN_PLACE and NULL correspondingly, produces the segmentation fault.
The problem is that sendtype is used even when sendbuf value is MPI_IN_PLACE. But according to the standard, sendtype and sendcount parameters should be ignored in this case.
Signed-off-by: Mikhail Kurnosov <mkurnosov@gmail.com>
OMPIO now uses the correct delete function depending on the fs
mca_common_ompio_file_delete now works this way instead
of calling POSIX unlink:
- create a minimal file handle with the given file name
- select the best fs component using this file handle
- call the component-specific file delete function
Signed-off-by: Gaëtan Bossu <gbossu@ddn.com>
It is needed because the fs components might be queried due to a MPI_File_delete call.
And in this case, we don't have a communicator value.
Signed-off-by: Gaëtan Bossu <gbossu@ddn.com>
instead of invoking ompi_request_test_all(), that will end up
calling opal_progress() recursively, manually check the status
of the requests.
the same method is used in ompi_comm_request_progress()
Refs open-mpi/ompi#3901
Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>
- Added support in MTL_OFI_RETRY_UNTIL_DONE to handle -FI_EAGAIN
from the provider and correctly attempt to progress the OFI Completion
queue by calling ompi_mtl_ofi_progress.
- If events were pending that blocked OFI operations from being enqueued
they will be completed and the OFI operation will be retried once
ompi_mtl_ofi_progress has successfully completed.
- Updated MTL_OFI_RETRY_UNTIL_DONE to take a RETURN variable instead of
requiring the existance of a "ret" variable to pass back the return
value from completing the OFI operation.
Signed-off-by: Spruit, Neil R <neil.r.spruit@intel.com>
Blocking `MPI_SCATTER` and `MPI_SCATTERV` were fixed in 506d0e96f4
but noblocking `MPI_ISCATTER` and `MPI_ISCATTERV` were not fixed yet.
Signed-off-by: KAWASHIMA Takahiro <t-kawashima@jp.fujitsu.com>
Move memory hooks init (for request based operation) in osc ucx to window
creation time, to avoid performance issue in MPI initialization.
Signed-off-by: Xin Zhao <xinz@mellanox.com>
This commit fixes a crash that occurs when using btl/vader as an RDMA
btl. This btl supports using CPU atomics and does not support using
the btl for self communication so we must use the local memory
optimizations in osc/rdma.
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
Data transferred by `MPI_BSEND` may corrupt if all of the following
conditions are met.
- The message size is less than the eager limit.
- The `btl_alloc` function in the BTL interface returns `NULL`
for some reason.
- The MPI program overwrites the send buffer after `MPI_BSEND`
returns.
The problem is in the way of pending a send request in ob1 PML.
The `mca_pml_ob1_send_request_start_copy` function retruns
`OMPI_ERR_OUT_OF_RESOURCE` if `mca_bml_base_alloc` function returns
`des = NULL`. In this case, the send request is added to the
`send_pending` list and `MPI_BSEND` returns immediately. Next time
the `mca_pml_ob1_send_request_start_copy` function tries sending,
the user buffer may have been overwritten by the MPI program.
Call hierarchy of `MPI_BSEND`:
```
MPI_Bsend
mca_pml_ob1_send
if (MCA_PML_BASE_SEND_BUFFERED == sendmode)
mca_pml_ob1_isend
MCA_PML_OB1_SEND_REQUEST_START_W_SEQ
mca_pml_ob1_send_request_start_seq
mca_pml_ob1_send_request_start_btl
if (size <= eager_limit)
if (req_send_mode == MCA_PML_BASE_SEND_BUFFERED)
mca_pml_ob1_send_request_start_copy
mca_bml_base_alloc
btl_alloc
if (OMPI_ERR_OUT_OF_RESOURCE == rc)
add_request_to_send_pending
ompi_request_free
```
To solve this problem, we should save the data to the buffer
attached by `MPI_BUFFER_ATTACH` before leaving `MPI_BSEND`.
This problem was introduced by ob1 optimization (commits 2b57f422
and a06e491c) in v1.8 series.
Signed-off-by: KAWASHIMA Takahiro <t-kawashima@jp.fujitsu.com>
This commit fixes an issue identified by MTT where we can have two
different sets of processes on the same node creating a shared memory
window with communicators sharing the same CID. To avoid this issue
the temporary filename now includes the creating processes vpid.
References #5363
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
Use internal pack/unpack subroutines that operate on MPI_Aint instead of int
and hence solve some integer overflows.
Thanks Clyde Stanfield for reporting this issue.
Refs open-mpi/ompi#5383
Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>
Current implementation of `coll/base/MPI_Scatter` is based on in-order binomial tree. This tree is right skewed and it provides good performance for a MPI_Gather operation. But for a MPI_Scatter operation left skewed binomial tree is effective.
Signed-off-by: Mikhail Kurnosov <mkurnosov@gmail.com>
-Updated the design for sync send MPI calls to use 2 protocol bits for
denoting "sync_send" or "sync_send_ack".
-"Sync_send" is added to the send tag only and is masked out in receives
such that it can be read by the original Recv posted in the send/recv
operation.
-"Sync_send_ack" is sent from the recv callback to the send side. This 0
byte send does not generate a completion entry and instead sends the
message and immediately completes the opal completion in the recv.
-Tag formats ofi_tag_1 and ofi_tag_2 have been updated to include 2
more tag bits per format type due to the reduced protocal bits required
by OMPI.
Signed-off-by: Spruit, Neil R <neil.r.spruit@intel.com>
The call of MPI_Gather with sendbuf and sendtype parameters equal to MPI_IN_PLACE and NULL correspondingly, produces the segmentation fault in the root process.
The problem is that sendtype is used even when sendbuf value is MPI_IN_PLACE. But according to the standard (page 150, line 37), sendtype and sendcount parameters should be ignored in this case.
Signed-off-by: Mikhail Kurnosov <mkurnosov@gmail.com>
- added common logging infrastructure for all
UCX modules
- all UCX modules are switched to new infra
Signed-off-by: Sergey Oblomov <sergeyo@mellanox.com>
- some common functionality of del_procs calls is moved into
mca_common module
- blocking ucp_put call is replaced by non-blocking routine
Signed-off-by: Sergey Oblomov <sergeyo@mellanox.com>
moving some code from fs/ufs into fs/base. The benefit of this approach is
that fs components that are fundamentally based on posix I/O (and only differ
in some non-posix functionality such as setting stripe size, or which hints
are being supported) can avoid having to replicate the same code over and
over again. First beneficiary is the lustre fs component, but more
are to follow soon.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
Intentionally do not mark some MPI-1 function pointer typedefs as
`__mpi_interface_removed__` because we have to use them in prototyping
some MPI-1 functions when `--enable-mpi1-compatibility` is used.
Fixes#5357.
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
This commit fixes a typo where a bcast is used instead of the intended
collective (barrier).
References #5262
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
so latest ROM-IO can be used with Open MPI.
Note this first and naive implementation does not use the wait_fn callback.
Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>
The osc/rdma module did not wait for all pending atomics to complete
before tearing down. This could lead to weird issues as the target
location may no longer be registered or allocated.
This commit also fixes an offset calculation issue in
ompi_osc_get_data_blocking ().
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
a bug sneaked into constructing the list of aggregators
processes when using the fileview based grouping options
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
handle the situation where the user requests a non-zero amount
of data but has a zero-size fileview. My instrinct would have been
to return an error code, but according to the test that I used
it should be MPI_SUCCESS and zero bytes. It is definitely better
than segfaulting :-)
THis makes another test from the IBM testsuite pass.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
the seek offset calculation did not treat the offset as a multiple
of the etype provided. Fixing this makes some more ibm tests pass.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
use an allocator to manage temporary buffers when copying
unmanaged data from GPU buffer to host. This is necessary,
since the buffers have to be pinned for better performance,
which is an expensive operation.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
the two_phase compoment does not work with some collective I/O
operations on CUDA buffers due to the data sieving (i.e.
both read and write operations) executed on some buffers, which are
not anticipated in the GPU buffer management of the code.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
this commit adds the initial support for cuda buffers in ompio, for blocking
and non-blocking individual read and write operations.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
two minor updates:
- in all components: use the fh->f_bytes_per_agg value
(which might have been set by an info object) instead
of re-reading the mca parameter
- vulcan and dynamic_gen2: replace one allgather operation
by an allreduce, since it is used to determine the sum
of an array.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
This commit attempts to update the romio io component to not use
functions removed in MPI-3.0 (2012). This is a first cut and will
probably need to be reviewed for correctness.
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
(back-ported from commit open-mpi/ompi@84765001aa)
Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>
romio assumes that all predefined datatypes are contiguous. Because of
the (terribly named) composed datatypes MPI_SHORT_INT, MPI_DOUBLE_INT,
MPI_LONG_INT, etc this is an incorrect assumption. The simplest way to
fix this is to override the MPI_Type_get_envelope and
MPI_Type_get_contents calls with calls that will work on these
datatypes. Note that not all calls to these MPI functions are
replaced, only the ones used when flattening a non-contiguous
datatype.
References #5009
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
(back-ported from commit open-mpi/ompi@4d876ec6fe)
Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>
add support for the info objects cb_buffer_size and collective_buffering.
Also, introduce a new mca parameter that allows to give feedback
on whether an info object is recognized (and honored).
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
this component can only be used in very specific scenarios. However, since some file systems do not support file locking and processes might be distributed over multiple nodes (hence the sm sharedfp component is also inelligible), the component might be selected in some scenarios, even if an application does not intend to use shared file pointers.
Since the fseek_shared function is involved as part of the File_set_view operation, only complain about the inability to perform the seek_shared operation if actual shared file pointer operations are being used. This avoid spurious error values being returned.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
this commit revamps the internal operations of the sharedfp components.
Specifically, it is focused around removing the second file_open
operation for shared file pointers. This makes the code more efficient.
Because of that, there is no necessity anymore for the sharedfp_lazy_open
mca parameter.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
This function is only used in ompi_spc.c and is hence declared as static.
Remove its prototype from the header file in order to silence compiler warnings who will typically consider ompi_spc_get_count() as a declared but not defined function.
Fixesopen-mpi/ompi#5279Fixesopen-mpi/ompi#5273
Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>
Extend number of supported ranks with providers that support
FI_REMOTE_CQ_DATA. Add README file to OFI MTL
Signed-off-by: Matias Cabral <matias.a.cabral@intel.com>
This code is the implementation of Software-base Performance Counters as described in the paper 'Using Software-Base Performance Counters to Expose Low-Level Open MPI Performance Information' in EuroMPI/USA '17 (http://icl.cs.utk.edu/news_pub/submissions/software-performance-counters.pdf). More practical usage information can be found here: https://github.com/davideberius/ompi/wiki/How-to-Use-Software-Based-Performance-Counters-(SPCs)-in-Open-MPI.
All software events functions are put in macros that become no-ops when SOFTWARE_EVENTS_ENABLE is not defined. The internal timer units have been changed to cycles to avoid division operations which was a large source of overhead as discussed in the paper. Added a --with-spc configure option to enable SPCs in the Open MPI build. This defines SOFTWARE_EVENTS_ENABLE. Added an MCA parameter, mpi_spc_enable, for turning on specific counters. Added an MCA parameter, mpi_spc_dump_enabled, for turning on and off dumping SPC counters in MPI_Finalize. Added an SPC test and example.
Signed-off-by: David Eberius <deberius@vols.utk.edu>
The `nbc_i*` functions don't start communication, but create a request.
`nbc_*_init` are appropriate names for them.
Signed-off-by: KAWASHIMA Takahiro <t-kawashima@jp.fujitsu.com>
Persistent operation for `NBC_A2A_DISS` is not supported currently.
Though the algorithm is not selected at all currently, I put an
assertion not to select it by mistake.
Signed-off-by: KAWASHIMA Takahiro <t-kawashima@jp.fujitsu.com>
`NBC_Copy` shoud not be called in `MPI_*_INIT`.
`NBC_Sched_copy` should be called instead.
Signed-off-by: KAWASHIMA Takahiro <t-kawashima@jp.fujitsu.com>
Because a persistent reuqest does not free its `schedule` object
when the communication completes, the `NBC_Progress` function cannot
determine the completion using `schedule`.
Without this change, a hang occurs when the `NBC_Progress` function
is called recursively through the `NBC_Start_round` function.
Signed-off-by: KAWASHIMA Takahiro <t-kawashima@jp.fujitsu.com>
Until the MPI Forum decides to add the persistent collective
communication request feature to the MPI Standard, these functions
are supported through MPI extensions with the `MPIX_` prefix.
Only C bindings are supported currently.
Signed-off-by: KAWASHIMA Takahiro <t-kawashima@jp.fujitsu.com>
Now libnbc COLL supports persistent collectives and all `*_init`
functions of the COLL interface are available. So let's enable the
check of availability of those functions on a communicator creation.
Signed-off-by: KAWASHIMA Takahiro <t-kawashima@jp.fujitsu.com>
prepare the upcoming persistent collectives by pre-factoring some code
Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>
fixup 808c3c62cd9475edd91ecde9d2d53b12e28b2c04
now that we have a shiny new fcoll component, no need
to keep the static component around. No use for it anymore.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
check for pending I/O operations and invalid modes
and return proper error codes before executing MPI_File_sync
makes the e_sync_1 test from the ibm testsuite pass.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
the interface if file_get_type_extent did not check
whether the input datatype is valid or not.
Makes the e_get_type_extend_2 test from the ibm testsuite pass.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
in case the user opened a file using the DELETE_ON_CLOSE flag,
return the error code generated in the delete operation.
Note, that this is however just a partial fix to the e_close_1 test
from the ibm testsuite, since the object destructor that triggers
the file_close function does not have a mechanism right now to recognize
and return an error code.
Signed-off-by: Edgar Gabriel <gabriel@cs.uh.edu>
in file_get_byte_offset, return an error code if the offset
leads to an invalid position in file.
Makes the e_get_byte_offset_1 test from the ibm testsuite pass.
Signed-off-by: Edgar Gabriel <gabriel@cs.uh.edu>
and some internal structure elements/components. Along the way,
add support for the cb_nodes Info object.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
since the request code is now being accessed also from the vulcan fcoll
component, the request code was relocated into the common/ompio
directory to avoid ld load problems.
Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
We introduced a new mca_vulcan parameter that specify the I/O synchronization
type (Async/sync I/O) applied within the collective write operation.
The user can explicitly choose to use async or sync write operation or make
the choice automatically made.
Signed-off-by: raafatfeki <fekiraafat@gmail.com>
For very large offsets, the data chunk size to be written by each aggregator
exceeds the capacity of an integer variable. Besides, some variables were
not large enough to hold intermediate values.
Signed-off-by: raafatfeki <fekiraafat@gmail.com>
