communication library should use to initialize itself.
Ralph will champion this change back with an RFC if there is a realistic
need/use case from the community.
This commit was SVN r32361.
The following SVN revision numbers were found above:
r32355 --> open-mpi/ompi@c903917f47
WHAT: Open our low-level communication infrastructure by moving all necessary components (btl/rcache/allocator/mpool) down in OPAL
All the components required for inter-process communications are currently deeply integrated in the OMPI layer. Several groups/institutions have express interest in having a more generic communication infrastructure, without all the OMPI layer dependencies. This communication layer should be made available at a different software level, available to all layers in the Open MPI software stack. As an example, our ORTE layer could replace the current OOB and instead use the BTL directly, gaining access to more reactive network interfaces than TCP. Similarly, external software libraries could take advantage of our highly optimized AM (active message) communication layer for their own purpose. UTK with support from Sandia, developped a version of Open MPI where the entire communication infrastucture has been moved down to OPAL (btl/rcache/allocator/mpool). Most of the moved components have been updated to match the new schema, with few exceptions (mainly BTLs where I have no way of compiling/testing them). Thus, the completion of this RFC is tied to being able to completing this move for all BTLs. For this we need help from the rest of the Open MPI community, especially those supporting some of the BTLs. A non-exhaustive list of BTLs that qualify here is: mx, portals4, scif, udapl, ugni, usnic.
This commit was SVN r32317.
Two leaks are fixed by this commit:
- opal_dss.lookup_data_type returns an allocated string. Free it.
- opal_ifaddrtokindex was leaking a struct addrinfo. Ensure that is
released before returning.
cmr=v1.8.2:reviewer=rhc
This commit was SVN r31777.
code.
This commit fixes minor errors in the incorrectly-committed r31513
(new fd close-on-exec convenience function).
Refs trac:4550
This commit was SVN r31514.
The following SVN revision numbers were found above:
r31513 --> open-mpi/ompi@e1655ae68d
The following Trac tickets were found above:
Ticket 4550 --> https://svn.open-mpi.org/trac/ompi/ticket/4550
Paul Hargrove pointed out that Stevens tells us that we should
FD_GETFL before FD_SETFL. And so we shall.
Make a new convenience function to do this (opal_fd_set_cloexec()),
just so that we don't have to litter this 2-step process throughout
the code.
Refs trac:4550
This commit was SVN r31513.
The following Trac tickets were found above:
Ticket 4550 --> https://svn.open-mpi.org/trac/ompi/ticket/4550
* Include opal_stdint.h so that we have uin32_t
cmr=v1.7.5:ticket=trac:4298
This commit was SVN r30890.
The following Trac tickets were found above:
Ticket 4298 --> https://svn.open-mpi.org/trac/ompi/ticket/4298
1. Changed rng_buff_t --> opal_rng_buff_t
2. All global variables obey the prefix rule
3. Old code has been removed
4. Found a couple of unnecessary includes
Refs trac:4298
This commit was SVN r30807.
The following Trac tickets were found above:
Ticket 4298 --> https://svn.open-mpi.org/trac/ompi/ticket/4298
* Fix some typos in macro names.
* Add case for OS's that have statfs() but no struct statfs (!).
* Add case for NetBSD with struct statvfs.f_fstypename.
Many thanks to Paul Hargrove who developed the majority of this patch.
Reviewed by Jeff Squyres.
cmr=v1.7.4:reviewer=ompi-rm1.7
This commit was SVN r30255.
As noted by Paul Hargrove, the #if's surrounding the use of statfs()
and statvfs() in opal/util/path.c have apparently gotten stale (e.g.,
modern flavors of *BSD OSs no longer define __BSD). Changes:
* Add statfs and statvfs to the AC_CHECK_FUNCS in configure.ac
* Add a sanity check to ensure that we have at least one of statfs()
or statvfs(). Add a similar sanity check in opal/util/path.c, just
as defensive programming.
* Use AC_CHECK_MEMBERS in configure.ac to check for specific struct
statfs/struct statvfs members that we use in opal/util/path.c
* In path.c, add some #includes as listed on the OS man page for
statfs(2) (OS X 10.8.5/Mountain Lion)
* The previous code used statvfs() on Solaris and statfs() everywhere
else. Attempting to replicate this with behavior-based configure
testing led to fairly complicted if/else logic, so the new code
uses whichever of the two are available (i.e., it might actually
use both -- OS X 10.8.5 and RHEL 6.5 have both statfs() and
statvfs()). The rationale here is that we don't really care which
of the two functions report the answer; we'll take the answer
regardless of where it comes from. For example, if one function
returns a failure and the other does not, we'll use the results
from the successful function and ignore the failed one.
This new code seems to work on OS X and Linux. We'll have to see what
happens with MTT and future Paul Hargrove testing...
cmr=v1.7.4:reviewer=ompi-rm1.7:subject=Make statfs/statvfs more robust
This commit was SVN r30198.
configury/Makefile.am changes; this commit renames the internal
installdirs.h framework struct field names to match the configry macro
names:
* pkgdatdir -> ompidatadir
* pkglibdir -> ompilibdir
* pkgincludedir -> ompiincludedir
This commit was SVN r30145.
The following SVN revision numbers were found above:
r30140 --> open-mpi/ompi@8b778903d8
pkg{data,lib,includedir}, use our own ompi{data,lib,includedir}, which is
always set to {datadir,libdir,includedir}/openmpi. This will keep us from
having help files in prefix/share/open-rte when building without Open MPI,
but in prefix/share/openmpi when building with Open MPI.
This commit was SVN r30140.
and preventing access to potentially unaligned data.
Reviewed by Dave Goodell. Tested by Siegmarr Gross.
cmr=v1.7.4:reviewer=ompi-rm1.7:subject=fix SPARC SIGBUS in opal net code
This commit was SVN r29983.
The following Trac tickets were found above:
Ticket 3990 --> https://svn.open-mpi.org/trac/ompi/ticket/3990
Change static opal_setlimit() function to return its value in an OUT
parameter and return the usual int error code indicating success or
failure.
The OUT param and return code need to be separated because the OUT
param is an unsigned type, but opal_setlimit() was returning -1 upon
failure. Hence, the caller could not know that it had failed because
the return type was previously an unsigned type.
cmr=v1.7.4:reviewer=rhc:subject=Fix opal sys_limits.c signed/unsigned warnings
This commit was SVN r29685.
*** THIS RFC INCLUDES A MINOR CHANGE TO THE MPI-RTE INTERFACE ***
Note: during the course of this work, it was necessary to completely separate the MPI and RTE progress engines. There were multiple places in the MPI layer where ORTE_WAIT_FOR_COMPLETION was being used. A new OMPI_WAIT_FOR_COMPLETION macro was created (defined in ompi/mca/rte/rte.h) that simply cycles across opal_progress until the provided flag becomes false. Places where the MPI layer blocked waiting for RTE to complete an event have been modified to use this macro.
***************************************************************************************
I am reissuing this RFC because of the time that has passed since its original release. Since its initial release and review, I have debugged it further to ensure it fully supports tests like loop_spawn. It therefore seems ready for merge back to the trunk. Given its prior review, I have set the timeout for one week.
The code is in https://bitbucket.org/rhc/ompi-oob2
WHAT: Rewrite of ORTE OOB
WHY: Support asynchronous progress and a host of other features
WHEN: Wed, August 21
SYNOPSIS:
The current OOB has served us well, but a number of limitations have been identified over the years. Specifically:
* it is only progressed when called via opal_progress, which can lead to hangs or recursive calls into libevent (which is not supported by that code)
* we've had issues when multiple NICs are available as the code doesn't "shift" messages between transports - thus, all nodes had to be available via the same TCP interface.
* the OOB "unloads" incoming opal_buffer_t objects during the transmission, thus preventing use of OBJ_RETAIN in the code when repeatedly sending the same message to multiple recipients
* there is no failover mechanism across NICs - if the selected NIC (or its attached switch) fails, we are forced to abort
* only one transport (i.e., component) can be "active"
The revised OOB resolves these problems:
* async progress is used for all application processes, with the progress thread blocking in the event library
* each available TCP NIC is supported by its own TCP module. The ability to asynchronously progress each module independently is provided, but not enabled by default (a runtime MCA parameter turns it "on")
* multi-address TCP NICs (e.g., a NIC with both an IPv4 and IPv6 address, or with virtual interfaces) are supported - reachability is determined by comparing the contact info for a peer against all addresses within the range covered by the address/mask pairs for the NIC.
* a message that arrives on one TCP NIC is automatically shifted to whatever NIC that is connected to the next "hop" if that peer cannot be reached by the incoming NIC. If no TCP module will reach the peer, then the OOB attempts to send the message via all other available components - if none can reach the peer, then an "error" is reported back to the RML, which then calls the errmgr for instructions.
* opal_buffer_t now conforms to standard object rules re OBJ_RETAIN as we no longer "unload" the incoming object
* NIC failure is reported to the TCP component, which then tries to resend the message across any other available TCP NIC. If that doesn't work, then the message is given back to the OOB base to try using other components. If all that fails, then the error is reported to the RML, which reports to the errmgr for instructions
* obviously from the above, multiple OOB components (e.g., TCP and UD) can be active in parallel
* the matching code has been moved to the RML (and out of the OOB/TCP component) so it is independent of transport
* routing is done by the individual OOB modules (as opposed to the RML). Thus, both routed and non-routed transports can simultaneously be active
* all blocking send/recv APIs have been removed. Everything operates asynchronously.
KNOWN LIMITATIONS:
* although provision is made for component failover as described above, the code for doing so has not been fully implemented yet. At the moment, if all connections for a given peer fail, the errmgr is notified of a "lost connection", which by default results in termination of the job if it was a lifeline
* the IPv6 code is present and compiles, but is not complete. Since the current IPv6 support in the OOB doesn't work anyway, I don't consider this a blocker
* routing is performed at the individual module level, yet the active routed component is selected on a global basis. We probably should update that to reflect that different transports may need/choose to route in different ways
* obviously, not every error path has been tested nor necessarily covered
* determining abnormal termination is more challenging than in the old code as we now potentially have multiple ways of connecting to a process. Ideally, we would declare "connection failed" when *all* transports can no longer reach the process, but that requires some additional (possibly complex) code. For now, the code replicates the old behavior only somewhat modified - i.e., if a module sees its connection fail, it checks to see if it is a lifeline. If so, it notifies the errmgr that the lifeline is lost - otherwise, it notifies the errmgr that a non-lifeline connection was lost.
* reachability is determined solely on the basis of a shared subnet address/mask - more sophisticated algorithms (e.g., the one used in the tcp btl) are required to handle routing via gateways
* the RML needs to assign sequence numbers to each message on a per-peer basis. The receiving RML will then deliver messages in order, thus preventing out-of-order messaging in the case where messages travel across different transports or a message needs to be redirected/resent due to failure of a NIC
This commit was SVN r29058.
Provide some nice error messages if we fail to set the limits. Since the user had to specifically request we set the limit, treat failure as an error-out situation.
This commit was SVN r28288.
Features:
- Support for an override parameter file (openmpi-mca-param-override.conf).
Variable values in this file can not be overridden by any file or environment
value.
- Support for boolean, unsigned, and unsigned long long variables.
- Support for true/false values.
- Support for enumerations on integer variables.
- Support for MPIT scope, verbosity, and binding.
- Support for command line source.
- Support for setting variable source via the environment using
OMPI_MCA_SOURCE_<var name>=source (either command or file:filename)
- Cleaner API.
- Support for variable groups (equivalent to MPIT categories).
Notes:
- Variables must be created with a backing store (char **, int *, or bool *)
that must live at least as long as the variable.
- Creating a variable with the MCA_BASE_VAR_FLAG_SETTABLE enables the use of
mca_base_var_set_value() to change the value.
- String values are duplicated when the variable is registered. It is up to
the caller to free the original value if necessary. The new value will be
freed by the mca_base_var system and must not be freed by the user.
- Variables with constant scope may not be settable.
- Variable groups (and all associated variables) are deregistered when the
component is closed or the component repository item is freed. This
prevents a segmentation fault from accessing a variable after its component
is unloaded.
- After some discussion we decided we should remove the automatic registration
of component priority variables. Few component actually made use of this
feature.
- The enumerator interface was updated to be general enough to handle
future uses of the interface.
- The code to generate ompi_info output has been moved into the MCA variable
system. See mca_base_var_dump().
opal: update core and components to mca_base_var system
orte: update core and components to mca_base_var system
ompi: update core and components to mca_base_var system
This commit also modifies the rmaps framework. The following variables were
moved from ppr and lama: rmaps_base_pernode, rmaps_base_n_pernode,
rmaps_base_n_persocket. Both lama and ppr create synonyms for these variables.
This commit was SVN r28236.
actually care if opal_pointer_array is limited to handle_max already passes
that in as the max_size during init, so don't need it there. The arch
constant was a bit more difficult, so pass that in during MPI init and
leave empty otherwise.
This is to help with the effort to allow building ompi against an external
opal or orte.
This commit was SVN r27817.
It appears the problem was not with the command line parser but the rsh plm. I don't know why this problem was not occuring before the command line parser changes but it appears to be resolved now.
This commit was SVN r27527.
The following SVN revision numbers were found above:
r27451 --> open-mpi/ompi@d59034e6ef
r27456 --> open-mpi/ompi@ecdbf34937
opal_shmem_segment_create by testing whether or not the target mount has enough
space to accommodate the shared-memory backing store. Fixes trac:2827. Will work
with Shiqing to add Windows support (if required).
This commit was SVN r27433.
The following Trac tickets were found above:
Ticket 2827 --> https://svn.open-mpi.org/trac/ompi/ticket/2827
"num_app_ctx" - the number of app_contexts in the job
"first_rank" - the MPI rank of the first process in each app_context
"np" - the number of procs in each app_context
Still need clarification on the MPI_Init portion of the ticket. Specifically, does the ticket call for returning an error is someone calls MPI_Init more than once in a program? We set a flag to tell us that we have been initialized, but currently never check it.
This commit was SVN r27005.
distinguish between unknown ''options'' (i.e., command line options
that are registered and have some meaning) and unknown ''tokens''
(i.e., strings that do not begin with "-"). Hence, if you did:
mpirun --fo my_mpi_program
(when perhaps you meant to type "--foo", mpirun would complain that no
such executable "--fo" existed. That is ''correct,'' but perhaps not
completely useful. It is more accurate for mpirun to report that
there is no such "--fo" option.
This change to cmd_line.c makes it so that we will ''always'' report
errors regarding tokens that begin with "-".
This commit was SVN r26953.
Roll in the ORTE state machine. Remove last traces of opal_sos. Remove UTK epoch code.
Please see the various emails about the state machine change for details. I'll send something out later with more info on the new arch.
This commit was SVN r26242.
* fixed some bugs where "unknown" tokens were allowed on the command
line (which should really only be used for ortertun).
* if an unknown token is encountered, print a short error to stderr
and quit with a nonzero exit status
* if we don't find the right number of parameters to an option, print
a short error to stderr and quit with a nonzero exit status
* when --help is given, print the help message to stdout (not stderr)
and quit with a zero exit status
* added --showme:help option to the wrapper compilers
* updated docs in opal/util/cmd_line.h
* other small/miscellaneous CLI parsing bugs in various tools
I won't bore you with what we did before. :-) Here's some examples
of what the new behavior looks like:
{{{
% ompi_info --bogus
ompi_info: Error: unknown option "--bogus"
Type 'ompi_info --help' for usage.
% ompi_info --param bogus
ompi_info: Error: option "--param" did not have enough parameters (2)
Type 'ompi_info --help' for usage.
%
}}}
This commit was SVN r26072.
supposed to. I.e., half-baked/not complete stuff.
This commit backs out all of r25545. Sorry folks!
This commit was SVN r25546.
The following SVN revision numbers were found above:
r25545 --> open-mpi/ompi@7f9ae11faf
to make MPI_IN_PLACE (and other sentinel Fortran constants) work on OS
X, we need to use the following compiler (linker) flag:
-Wl,-commons,use_dylibs
So if we're compiling on OS X, test to see if that flag works with the
compiler. If so, add it to the wrapper FFLAGS and FCFLAGS (note that
per a future update, we'll only have one Fortran compiler anyway).
Fixes trac:1982.
This commit was SVN r25545.
The following Trac tickets were found above:
Ticket 1982 --> https://svn.open-mpi.org/trac/ompi/ticket/1982
zeroes);
if so, use it for bit-operations like opal_cube_dim and opal_hibit.
Implement two versions of power-of-two.
In case of opal_next_poweroftwo, this reduces the average execution
time from 83 cycles to 4 cycles (Intel Nehalem, icc, -O2, inlining,
measured rdtsc, with loop over 2^27 values).
Numbers for other functions are similar (but of course heavily depend
on the usage, e.g. opal_hibit() with a start of 4 does not save
much). The bsr instruction on AMD Opteron is also not as fast.
- Replace various places where the next power-of-two is computed.
Tested on Intel Nehalem Cluster with openib, compilers GNU-4.6.1 and
Intel-12.0.4 using mpi_testsuite -t "Collective" with 128 processes.
This commit was SVN r25270.
Fix a bug in the new code that prevented the system from correctly matching addresses.
Remove comments in the show-help text indicating that we would continue in the face of incorrect specifications - leave that to the calling layer to decide.
Modify the new opal_ifmatches so it returns error codes letting the caller better understand the result.
Modify the oob to ensure we abort if we don't find interfaces matching specified constraints, and that we do so without multiple error messages.
NOTE: we have a conflict in our standards. We have been using comma-delimited lists of interfaces for all our params. However, one param - opal_net_private_ipv4 - now uses semicolons instead of comma separators. No idea why, but it is confusing.
This commit was SVN r24755.
Interested readers can quench their curiosity either with one
of the Richard Stevens books (ISBN 9780201633467) or the
Wikipedia page (http://en.wikipedia.org/wiki/Subnetwork).
This commit was SVN r24680.
Correctly check the dependencies of MSYS env.
Set up configure include and lib path for building the package.
update a few more CMake scripts.
This commit was SVN r24663.
Add some new proc/job states
Rename a constant to reflect coming change - remove the arbitrary difference between restarting a proc locally and relocating it to another node in terms of the number of restarts allowed.
Add pretty-print of signals for "proc aborted due to signal" reports.
This commit was SVN r24378.
The following SVN revision numbers were found above:
r24371 --> open-mpi/ompi@93d28a5792
This means that the converters (opal_err2str, orte_err2str) can now
return NULL as a "silent error". The return value of opal_err2str_fn_t
is the status of the operation (OPAL_SUCCESS or OPAL_ERROR).
This fixes the "Unknown error" message issues on the trunk.
This commit was SVN r24371.
It is statically initialized to the real back-end OPAL show_help
function. During orte_show_help_init(), the variable is re-assigned
with the value of the back-end ORTE show_help function (the one that
does error message aggregation).
Therefore, anything that calls opal_show_help() after a certain point
in orte_init() will have their show_help messages be aggregated.
w00t! Even code down in OPAL -- that has no knowledge of ORTE -- will
have their messages aggregated. '''Double w00t!'''
During orte_show_help_finalize(), we restore the original pointer
value so that it something calls opal_show_help() after
orte_finalize(), it'll still work properly (but it won't be
aggregated).
This commit was SVN r24185.
This merges the branch containing the revamped build system based around converting autogen from a bash script to a Perl program. Jeff has provided emails explaining the features contained in the change.
Please note that configure requirements on components HAVE CHANGED. For example. a configure.params file is no longer required in each component directory. See Jeff's emails for an explanation.
This commit was SVN r23764.
All interface APIs for accessing the info remain unchanged in opal/util/if.c.
This has been tested on Mac, Linux, and NetBSD. Nobody else seemed interested in testing it, so there may be some future problems revealed as people try it on other OSs.
This commit was SVN r23743.
be tested on function pointers and assigned accordingly,
instead of using the pre-processor in the header files.
A functional change is (re-) specifying __opal_attribute_noreturn__
on orte_errmgr_base_abort(): All modules in the errmgr framework
either use this function, or define their own abort function,
which sets __opal_attribute_noreturn__.
This attributes was taken out with the errmgr overhaul in r22872.
This commit was SVN r23689.
The following SVN revision numbers were found above:
r22872 --> open-mpi/ompi@e4f2d03d28
error codes correctly again. Also fix a typo.
Reviewed by Jeff Squyres.
This commit was SVN r23531.
The following SVN revision numbers were found above:
r23463 --> open-mpi/ompi@2af3e6e5ae
substantive changes in this commit; the rest are minor style changes:
1. Change an OBJ_NEW(opal_list_item_t) to OBJ_NEW(opal_if_t). This
was causing memory corruption in the BSD code paths.
1. Move some local variables from the top of opal_if_init() to inside
the non-BSD code paths so that we avoid bunches of warnings about
unused variables when compiling on BSD. In doing so, I indented
the whole non-BSD section one level deeper, making the commit look
huge.
I also added a few {} around 1-line blocks, added some spaces, broke a
few lines, re-formatted a few comments, ...etc. Trivial stuff.
This commit was SVN r23501.
file descriptor (i.e., read and write complete messages, transparently
handling partial reads/writes, EAGAIN, and EINTR).
This code effectively already exists in a few places in the code base;
this is mainly a consolidation.
This commit was SVN r23450.
