This commit adds support for MPI_Aint_add and MPI_Aint_diff. These
functions are implemented as macros in C (explicitly allowed by
MPI-3.1). The fortran implementations are a similar mess to the
MPI_Wtime implementations.
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
Remove some outdated discussion of "color" -- looks like this was a
copy-n-paste from the MPI_Comm_split man page. Also make some minor
updates to some Open MPI-specific key text.
Thanks to @eschnett for raising the issue.
Fixes#437.
As noted by Alexander Pozdneev, non-blocking sends are now able to
*access* buffers in pending non-blocking send operations; the buffers
just can't be *modified*.
Using the underlying hardware identification to split
communicators based on locality has been enabled using
the MPI_Comm_Split_Type function.
Currently implemented split's are:
HWTHREAD
CORE
L1CACHE
L2CACHE
L3CACHE
SOCKET
NUMA
NODE
BOARD
HOST
CU
CLUSTER
However only NODE is defined in the standard which is why the
remaning splits are referred to using the OMPI_ prefix instead
of the standard MPI_ prefix.
I have tested this using --without-hwloc and --with-hwloc=<path>
which both give the same output.
NOTE: I think something fishy is going on in the locality operators.
In my test-program I couldn't get the correct split on these requests:
NUMA, SOCKET, L3CACHE
where I suspected a full communicator but only got one.
Per discussion starting
http://www.open-mpi.org/community/lists/users/2014/12/26018.php, at
least note that OMPI does not allow adding or deleting attributes in
an attribute copy or delete callback (or any of its children) on the
same object on which the callback was invoked.
Add MPI_Ibarrier.3in to reference MPI_Barrier.3, and update
MPI_Barrier.3in to include bindings for MPI_Ibarrier. Slightly update
the text to be inclusive of the non-blocking case.
Fixes#242.
This man page contains the prototype and descriptions for both
MPI_TYPE_INDEXED and MPI_TYPE_CREATE_HINDEXED. Bastian Beischer
noticed that the type of the array_of_displacements argument in the
MPI_TYPE_CREATE_HINDEXED was wrong.
Also, a minor update to MPI_Type_hindexed.3in: indicate that the C
type is MPI_Aint and the Fortran type is INTEGER (which is why this
function was deprecated and then deleted by the MPI Forum!).
cmr=v1.8.1:reviewer=dgoodell
This commit was SVN r31411.
Also, since I put some of the macros for these silent/verbose rules up
in the top-level Makefile.man-page-rules file, I renamed it to
Makefile.ompi-rules.
I've had this sitting around for a while; now seems like as good a
time as any to commit it.
This commit was SVN r31271.
Fix comm_spawn on a single host - with the new default mapping scheme, we were incorrectly computing the number of procs to put on the node.
Refs trac:4003
This commit was SVN r30033.
The following Trac tickets were found above:
Ticket 4003 --> https://svn.open-mpi.org/trac/ompi/ticket/4003
Blocking versions are simple linear algorithms implemented in coll/basic. Non-
blocking versions are from libnbc 1.1.1. All algorithms have been tested with
simple test cases.
cmr=v1.7.4:reviewer=jsquyres
This commit was SVN r29265.
Add support for MPI_Count type and MPI_COUNT datatype and add the required
MPI-3 functions MPI_Get_elements_x, MPI_Status_set_elements_x,
MPI_Type_get_extent_x, MPI_Type_get_true_extent_x, and MPI_Type_size_x.
This commit adds only the C bindings. Fortran bindins will be added in
another commit. For now the MPI_Count type is define to have the same size
as MPI_Offset. The type is required to be at least as large as MPI_Offset
and MPI_Aint. The type was initially intended to be a ssize_t (if it was
the same size as a long long) but there were issues compiling romio with
that definition (despite the inclusion of stddef.h).
I updated the datatype engine to use size_t instead of uint32_t to support
large datatypes. This will require some review to make sure that 1) the
changes are beneficial, 2) nothing was broken by the change (I doubt
anything was), and 3) there are no performance regressions due to this
change.
Increase the maximum number of predifined datatypes to support MPI_Count
Put common get_elements code to ompi/datatype/ompi_datatype_get_elements.c
Update MPI_Get_count to reflect changes in MPI-3 (return MPI_UNDEFINED when the count is too large for an int)
This commit was SVN r28932.
* Minor man page tweaks
* Use existing ompi_mpi_thread_requested global
This commit was SVN r27308.
The following Trac tickets were found above:
Ticket 3309 --> https://svn.open-mpi.org/trac/ompi/ticket/3309
