apparently some people are using these examples to test other MPI's,
and some of those MPI's don't handle MPI_Init(NULL, NULL) properly.
:-)
- Add comments and a print statement to the f90 example to make it
like the others.
This commit was SVN r11123.
r10877:
add warm up connection option.. of course this only warms up the first
eager btl but this should be adequate for now..
r10881:
Consulted with Galen and did a few things:
- Fix the algorithm to actually make the connections that we want
- Rename the MCA param to mpi_preconnect_all
- Cleanup the code a bit:
- move the logic to a separate .c file
- check return codes properly
This commit was SVN r11114.
The following SVN revisions from the original message are invalid or
inconsistent and therefore were not cross-referenced:
r10877
r10877
r10881
r10881
- indent / whitespace cleanup
- don't set --daemon-debug when pls debug is given, as it seems to make
the daemons abort.
This commit was SVN r11113.
The following SVN revision numbers were found above:
r11109 --> open-mpi/ompi@da7df6d257
full argument checking (allowing that MPI_PROC_NULL is legal, of course).
Only after the argument checking do we shortcut. Fixes trac:237, which
was caused by moving the MPI_PROC_NULL test in MPI_Bsend_init,
but not allowing for MPI_PROC_NULL when checking rank.
This commit was SVN r11108.
The following SVN revision numbers were found above:
r10972 --> open-mpi/ompi@31c66d92aa
The following Trac tickets were found above:
Ticket 237 --> https://svn.open-mpi.org/trac/ompi/ticket/237
on almost all platforms (except OS X... sigh...). This is the merge
of r10846 - 10894 from the tmp/f90-shared branch to the trunk.
This commit was SVN r11103.
The following SVN revisions from the original message are invalid or
inconsistent and therefore were not cross-referenced:
r10846
implemented entirely on top of the PML. This allows us to have a
one-sided interface even when we are using the CM PML and MTLs for
point-to-point transport (and therefore not using the BML/BTLs)
* Old pt2pt component was renamed "rdma", as it will soon be having
real RDMA support added to it.
Work was done in a temporary branch. Commit is the result of the
merge command:
svn merge -r10862:11099 https://svn.open-mpi.org/svn/ompi/tmp/bwb-osc-pt2pt
This commit was SVN r11100.
The following SVN revisions from the original message are invalid or
inconsistent and therefore were not cross-referenced:
r10862
r11099
did pre-libevent update. The problem is that the behavior of
OPAL_EVLOOP_ONCE was changed by the OMPI team, which them broke things
during the update, so it had to be reverted to the old meaning of
loop until one event occurs. OPAL_EVLOOP_ONELOOP will go through the
event loop once (like EVLOOP_NONBLOCK) but will pause in the event
library for a bit (like EVLOOP_ONCE).
fixes trac:234
This commit was SVN r11081.
The following Trac tickets were found above:
Ticket 234 --> https://svn.open-mpi.org/trac/ompi/ticket/234
compiler, automatically disable the ptmalloc component. It seems that
optimization level -O2 or higher will cause the generated code to do
Bad Things (e.g., opalcc will segv). Upgrading to the Intel 9.1
compiler seems to fix the problem.
This closes ticket #227.
This commit was SVN r11076.
1. Introduces a flag for the type of buffer that now allows a user to either have a fully described or a completely non-described buffer. In the latter case, no data type descriptions are included in the buffer. This obviously limits what we can do for debugging purposes, but the intent here was to provide an optimized communications capability for those wanting it.
Note that individual buffers can be designated for either type using the orte_dss.set_buffer_type command. In other words, the buffer type can be set dynamically - it isn't a configuration setting at all. The type will default to fully described. A buffer MUST be empty to set its type - this is checked by the set_buffer_type command, and you will receive an error if you violate that rule.
IMPORTANT NOTE: ORTE 1.x actually will NOT work with non-described buffers. This capability should therefore NOT be used until we tell you it is okay. For now, it is here simply so we can begin bringing over parts of ORTE 2.0. The problem is that ORTE 1.x depends upon the transmission of non-hard-cast data types such as size_t. These "soft" types currently utilize a "peek" function to see their actual type in the buffer - obviously, without description, the system has no idea how to unpack these "soft" types. We will deal with this later - for now, please don't use the non-described buffer option.
2. Introduces the orte_std_cntr_t type. This will become the replacement for the size_t's used throughout ORTE 1.x. At the moment, it is actually typedef'd to size_t for backward compatibility.
3. Introduces the orte_dss.arith API that supports arbitrary arithmetic functions on numeric data types. Calling the function with any other data type will generate an error.
This commit was SVN r11075.
.proc/.endp-declarations for functions in order to be able to
link successfully.
Currently used in configure, only.
There has not been found another arch, where this is necessary.
So asm-data.txt and base/default.conf has not been changed.
This commit was SVN r11068.
users mailing list:
http://www.open-mpi.org/community/lists/users/2006/07/1680.php
Warning: this log message is not for the weak. Read at your own
risk.
The problem was that we had several variables in Fortran common blocks
of various types, but their C counterparts were all of a type
equivalent to a fortran double complex. This didn't seem to matter
for the compilers that we tested, but we never tested static builds
(which is where this problem seems to occur, at least with the Intel
compiler: the linker compilains that the variable in the common block
in the user's .o file was of one size/alignment but the one in the C
library was a different size/alignment).
So this patch fixes the sizes/types of the Fortran common block
variables and their corresponding C instantiations to be of the same
sizes/types.
But wait, there's more.
We recently introduced a fix for the OSX linker where some C versions
of the fortran common block variables (e.g.,
_ompi_fortran_status_ignore) were not being found when linking
ompi_info (!). Further research shows that the code path for
ompi_info to require ompi_fortran_status_ignore is, unfortunately,
necessary (a quirk of how various components pull in different
portions of the code base -- nothing in ompi_info itself requires
fortran or MPI knowledge, of course).
Hence, the real problem was that there was no code path from ompi_info
to the portion of the code base where the C globals corresponding to
the Fortran common block variables were instantiated. This is because
the OSX linker does not automatically pull in .o files that only
contain unintialized global variables; the OSX linker typically only
pulls in a .o file from a library if it either has a function that is
used or have a global variable that is initialized (that's the short
version; lots of details and corner cases omitted). Hence, we changed
the global C variables corresponding to the fortran common blocks to
be initialized, thereby causing the OSX linker to pull them in
automatically -- problem solved. At the same time, we moved the
constants to another .c file with a function, just for good measure.
However, this didn't really solve the problem:
1. The function in the file with the C versions of the fortran common
block variables (ompi/mpi/f77/test_constants_f.c) did not have a
code path that was reachable from ompi_info, so the only reason
that the constants were found (on OSX) was because they were
initialized in the global scope (i.e., causing the OSX compiler to
pull in that .o file).
2. Initializing these variable in the global scope causes problems for
some linkers where -- once all the size/type problems mentioned
above were fixed -- the alignments of fortran common blocks and C
global variables do not match (even though the types of the Fortran
and C variables match -- wow!). Hence, initializing the C
variables would not necessarily match the alignment of what Fortran
expected, and the linker would issue a warning (i.e., the alignment
warnings referenced in the original post).
The solution is two-fold:
1. Move the Fortran variables from test_constants_f.c to
ompi/mpi/runtime/ompi_mpi_init.c where there are other global
constants that *are* initialized (that had nothing to do with
fortran, so the alignment issues described above are not a factor),
and therefore all linkers (including the OSX linker) will pull in
this .o file and find all the symbols that it needs.
2. Do not initialize the C variables corresponding to the Fortran
common blocks in the global scope. Indeed, never initialize them
at all (because we never need their *values* - we only check for
their *locations*). Since nothing is ever written to these
variables (particularly in the global scope), the linker does not
see any alignment differences during initialization, but does make
both the C and Fortran variables have the same addresses (this
method has been working in LAM/MPI for over a decade).
There were some comments here in the OMPI code base and in the LAM
code base that stated/implied that C variables corresponding to
Fortran common blocks had to have the same alignment as the Fortran
common blocks (i.e., 16). There were attempts in both code bases to
ensure that this was true. However, the attempts were wrong (in both
code bases), and I have now read enough Fortran compiler documentation
to convince myself that matching alignments is not required (indeed,
it's beyond our control). As long as C variables corresponding to
Fortran common blocks are not initialized in the global scope, the
linker will "figure it out" and adjust the alignment to whatever is
required (i.e., the greater of the alignments). Specifically (to
counter comments that no longer exist in the OMPI code base but still
exist in the LAM code base):
- there is no need to make attempts to specially align C variables
corresponding to Fortran common blocks
- the types and sizes of C variables corresponding to Fortran common
blocks should match, but do not need to be on any particular
alignment
Finally, as a side effect of this effort, I found a bunch of
inconsistencies with the intent of status/array_of_statuses
parameters. For all the functions that I modified they should be
"out" (not inout).
This commit was SVN r11057.
of send/receives outstanding.
Use ibv_cq_resize if available after initial creation of completion queue if
cq_size is too small (based on number of peers).
This commit was SVN r11053.
correctly with MPI_Comm_spawn.
The problem wiht MPI_Comm_spawn was that the 'parent' process was
rmgr.create'ing and then rmgr.launch'ing the children via the rmgr proxy
component. The HNP saw these commands and processed them normally, but
since we never went through the HNP's rmgr (urm component) spawn()
logic the triggers and key/value pairs were never created. So the
children were launched correctly, but since the HNP did not
have any triggers setup, never triggered the xcast for the
children to finish orte_init().
This fix puts the trigger and key/value pair initialization in
rmgr_urm_spawn() for the 'mpirun a.out' case, *and* in the
rmgr_base_unpack routine that deals with the creation of the
job for the child as requested by the proxy component. This
will allow the triggers to be registered for the proxy's request
which only happens during MPI_Comm_spawn*
Small change for a lot of debugging. Notice that his reverts r11037
to its previous version, and adds a newline to handle the spawn
cases.
This commit was SVN r11046.
The following SVN revision numbers were found above:
r11037 --> open-mpi/ompi@5813fb7d2a
make it consistent with the indenting in the rest of the file
(otherwise it was quite difficult to understand -- saw this while I
was reviewing 11039).
This commit was SVN r11042.
object if provided.
The associated value is a comma-separated list of hosts -- which must be
in the initial allocation -- and is used to populate the application
context map.
This commit was SVN r11039.
By reverting this file (changeset from commit r10708) to its previous
version fixes the problem.
This should be moved to the v1.1 branch where it is also broken.
This commit was SVN r11037.
The following SVN revision numbers were found above:
r10708 --> open-mpi/ompi@febc143d8c
