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Brian Barrett
8b4825ff37 Updates to make trunk run on Catamount again:
* Don't build the pstat component if all defines needed aren't there.
 * Update platform file to work better
 * Work around two places that depended on modex being operational

This commit was SVN r22536.
2010-02-03 05:07:40 +00:00
George Bosilca
76222eb869 Get rid of the useless mca_pml_base_endpoint_t and replace it by
[the well known and widely used!] mca_pml_endpoint_t.

This commit was SVN r22277.
2009-12-08 17:29:54 +00:00
Ralph Castain
2a1cf2ae81 Create two new modex functions for send/recv of specific OPAL data types - basically, ensure that the values are packed and unpacked appropriately. Provides a convenience function as otherwise anyone wanting to send a value had to do this themselves.
Use it to send the arch.

This commit was SVN r21677.
2009-07-15 04:54:53 +00:00
Ralph Castain
60edbc7220 Fix hetero operations and comm_spawn (to a point).
Remove all architecture references from ORTE and put them back in the modex using modex_send/recv calls.

Hetero operations are now fully supported again. Comm_spawn now works up to the point where it segfaults due to an error in the CID code - which now allows Edgar to dig further! :-)

This commit was SVN r21655.
2009-07-13 20:03:41 +00:00
Rainer Keller
6c5532072a - Split the datatype engine into two parts: an MPI specific part in
OMPI
   and a language agnostic part in OPAL. The convertor is completely
   moved into OPAL.  This offers several benefits as described in RFC
   http://www.open-mpi.org/community/lists/devel/2009/07/6387.php
   namely:
    - Fewer basic types (int* and float* types, boolean and wchar
    - Fixing naming scheme to ompi-nomenclature.
    - Usability outside of the ompi-layer.
 - Due to the fixed nature of simple opal types, their information is
   completely
   known at compile time and therefore constified
 - With fewer datatypes (22), the actual sizes of bit-field types may be
   reduced
   from 64 to 32 bits, allowing reorganizing the opal_datatype
   structure, eliminating holes and keeping data required in convertor
   (upon send/recv) in one cacheline...
   This has implications to the convertor-datastructure and other parts
   of the code.
 - Several performance tests have been run, the netpipe latency does not
   change with
   this patch on Linux/x86-64 on the smoky cluster.
 - Extensive tests have been done to verify correctness (no new
   regressions) using:
   1. mpi_test_suite on linux/x86-64 using clean ompi-trunk and
    ompi-ddt:
    a. running both trunk and ompi-ddt resulted in no differences
       (except for MPI_SHORT_INT and MPI_TYPE_MIX_LB_UB do now run
       correctly).
    b. with --enable-memchecker and running under valgrind (one buglet
       when run with static found in test-suite, commited)
   2. ibm testsuite on linux/x86-64 using clean ompi-trunk and ompi-ddt:
      all passed (except for the dynamic/ tests failed!! as trunk/MTT)
   3. compilation and usage of HDF5 tests on Jaguar using PGI and
      PathScale compilers.
   4. compilation and usage on Scicortex.
 - Please note, that for the heterogeneous case, (-m32 compiled
   binaries/ompi), neither
   ompi-trunk, nor ompi-ddt branch would successfully launch.

This commit was SVN r21641.
2009-07-13 04:56:31 +00:00
Greg Koenig
60485ff95f This is a very large change to rename several #define values from
OMPI_* to OPAL_*.  This allows opal layer to be used more independent
from the whole of ompi.

NOTE: 9 "svn mv" operations immediately follow this commit.

This commit was SVN r21180.
2009-05-06 20:11:28 +00:00
Rainer Keller
221fb9dbca ... Delayed due to notifier commits earlier this day ...
- Delete unnecessary header files using
   contrib/check_unnecessary_headers.sh after applying
   patches, that include headers, being "lost" due to
   inclusion in one of the now deleted headers...

   In total 817 files are touched.
   In ompi/mpi/c/ header files are moved up into the actual c-file,
   where necessary (these are the only additional #include),
   otherwise it is only deletions of #include (apart from the above
   additions required due to notifier...)

 - To get different MCAs (OpenIB, TM, ALPS), an earlier version was
   successfully compiled (yesterday) on:
   Linux locally using intel-11, gcc-4.3.2 and gcc-SVN + warnings enabled
   Smoky cluster (x86-64 running Linux) using PGI-8.0.2 + warnings enabled
   Lens cluster (x86-64 running Linux) using Pathscale-3.2 + warnings enabled

This commit was SVN r21096.
2009-04-29 01:32:14 +00:00
Rainer Keller
d8cf4c0fec - Get pgcc on XT to complain less:
In case we use memcmp, strlen, strup and friends include <string.h>
   Also several constants.h are not included directly
 - Let's have mca_topo_base_cart_create  return ompi-errors in
   ompi/mca/topo/base/topo_base_cart_create.c

This commit was SVN r20773.
2009-03-13 02:10:32 +00:00
Rainer Keller
ec0ed48718 - Revert r20739
This commit was SVN r20742.

The following SVN revision numbers were found above:
  r20739 --> open-mpi/ompi@781caee0b6
2009-03-05 21:56:03 +00:00
Rainer Keller
781caee0b6 - First of two or three patches, in orte/util/proc_info.h:
Adapt orte_process_info to orte_proc_info, and
   change orte_proc_info() to orte_proc_info_init().
 - Compiled on linux-x86-64
 - Discussed with Ralph

This commit was SVN r20739.
2009-03-05 20:36:44 +00:00
Rainer Keller
9dea63d63a - Last of intrusive commits (promised)... err for now.
Anyway, this is blocking the move: do not include pml.h
   if not really needed, aka none of the following used:
     mca_pml
     MCA_PML_CALL
     OMPI_ANY_TAG
     OMPI_ANY_SOURCE
     OMPI_PROC_NULL

 - Notable exceptions (deleting in one header->adding):
   - ompi/mca/mtl/psm/
   - ompi/mca/osc/rdma/
   - ompi/mca/btl/openib/btl_openib_endpoint.c depended on
     pml_base_sendreq.h

 - Tested on Linux/x86-64, this time including make check
   (thanks Jeff and Ralph)

This commit was SVN r20725.
2009-03-04 17:06:51 +00:00
Rainer Keller
fd28b392bf - An intrusive commit yet again (sorry): with the separation we
get bitten by header depending on having already included
   the corresponding [opal|orte|ompi]_config.h header.
   When separating, things like [OPAL|ORTE|OMPI]_DECLSPEC
   are missed.

   Script to add the corresponding header in front of all following
   (taking care of possible #ifdef HAVE_...)

 - Including some minor cleanups to
   - ompi/group/group.h -- include _after_ #ifndef OMPI_GROUP_H
   - ompi/mca/btl/btl.h -- nclude _after_ #ifndef MCA_BTL_H
   - ompi/mca/crcp/bkmrk/crcp_bkmrk_btl.c -- still no need for
     orte/util/output.h
   - ompi/mca/pml/dr/pml_dr_recvreq.c -- no need for mpool.h
   - ompi/mca/btl/btl.h -- reorder to fit
   - ompi/mca/bml/bml.h -- reorder to fit
   - ompi/runtime/ompi_mpi_finalize.c -- reorder to fit
   - ompi/request/request.h -- additionally need ompi/constants.h

 - Tested on linux/x86-64

This commit was SVN r20720.
2009-03-04 15:35:54 +00:00
Ralph Castain
4cdf91a8d4 Per the RFC, extend the current use of the ompi_proc_t flags field (without changing the field itself).
The prior ompi_proc_t structure had a uint8_t flag field in it, where only one
bit was used to flag that a proc was "local". In that context, "local" was
constrained to mean "local to this node".

This commit provides a greater degree of granularity on the term "local", to include tests
to see if the proc is on the same socket, PC board, node, switch, CU (computing
unit), and cluster.

Add #define's to designate which bits stand for which local condition. This
was added to the OPAL layer to avoid conflicting with the proposed movement of
the BTLs. To make it easier to use, a set of macros have been defined - e.g.,
OPAL_PROC_ON_LOCAL_SOCKET - that test the specific bit. These can be used in
the code base to clearly indicate which sense of locality is being considered.

All locations in the code base that looked at the current proc_t field have
been changed to use the new macros.

Also modify the orte_ess modules so that each returns a uint8_t (to match the
ompi_proc_t field) that contains a complete description of the locality of this
proc. Obviously, not all environments will be capable of providing such detailed
info. Thus, getting a "false" from a test for "on_local_socket" may simply
indicate a lack of knowledge.

This commit was SVN r20496.
2009-02-10 02:20:16 +00:00
George Bosilca
4d5fbc5955 Remove unused lock from the ompi_proc_t. This reduce the size of the ompi_proc_t
by 64 bytes.
Remove the useless pml_proc from the PML layer.

This commit was SVN r20157.
2008-12-19 19:56:27 +00:00
Jeff Squyres
9b14ee6d83 Fix CID 839: minor memory leak on error
This commit was SVN r19238.
2008-08-11 20:46:27 +00:00
Aurelien Bouteiller
4d080e1c13 Fix a bug where the list sentinel was added instead of the new element to the proc_list.
This commit was SVN r18854.
2008-07-09 20:45:24 +00:00
Ralph Castain
613d0f8017 Missed file...just some comment changes, but important ones
This commit was SVN r18828.
2008-07-08 04:02:31 +00:00
Ralph Castain
cf353a1412 Complete the revisions per Brian's email to devel list, plus lengthy discussions between Brian, Jeff, and myself.
These are mostly long additions to comments to document what is going on and why, and how/where it may be revised in the future. Just a couple of small, but important, changes to the code itself.

This commit was SVN r18827.
2008-07-08 03:56:51 +00:00
Ralph Castain
2a1e0a2e64 Fix ticket #1267
With help from Brian, modify the ompi/proc/proc.c code to be more thread-safe. Remove the list operations from the ompi_proc_t constructor and destructor. Insert list appends to ompi_proc_init and ompi_proc_find_and_add as required, and protect those with thread locks. Let only the ompi_proc_finalize function actually remove objects from the ompi_proc_list.

Cleanup a few places where functions might return without unlocking a thread. Ensure the ompi_proc_world also does an OBJ_RETAIN so that the reference count on any subsequently released object is correct.

This commit was SVN r18816.
2008-07-07 17:39:49 +00:00
Ralph Castain
ba5498cdc6 Repair the MPI-2 dynamic operations. This includes:
1. repair of the linear and direct routed modules

2. repair of the ompi/pubsub/orte module to correctly init routes to the ompi-server, and correctly handle failure to correctly parse the provided ompi-server URI

3. modification of orterun to accept both "file" and "FILE" for designating where the ompi-server URI is to be found - purely a convenience feature

4. resolution of a message ordering problem during the connect/accept handshake that allowed the "send-first" proc to attempt to send to the "recv-first" proc before the HNP had actually updated its routes.

Let this be a further reminder to all - message ordering is NOT guaranteed in the OOB

5. Repair the ompi/dpm/orte module to correctly init routes during connect/accept.

Reminder to all: messages sent to procs in another job family (i.e., started by a different mpirun) are ALWAYS routed through the respective HNPs. As per the comments in orte/routed, this is REQUIRED to maintain connect/accept (where only the root proc on each side is capable of init'ing the routes), allow communication between mpirun's using different routing modules, and to minimize connections on tools such as ompi-server. It is all taken care of "under the covers" by the OOB to ensure that a route back to the sender is maintained, even when the different mpirun's are using different routed modules.

6. corrections in the orte/odls to ensure proper identification of daemons participating in a dynamic launch

7. corrections in build/nidmap to support update of an existing nidmap during dynamic launch

8. corrected implementation of the update_arch function in the ESS, along with consolidation of a number of ESS operations into base functions for easier maintenance. The ability to support info from multiple jobs was added, although we don't currently do so - this will come later to support further fault recovery strategies

9. minor updates to several functions to remove unnecessary and/or no longer used variables and envar's, add some debugging output, etc.

10. addition of a new macro ORTE_PROC_IS_DAEMON that resolves to true if the provided proc is a daemon

There is still more cleanup to be done for efficiency, but this at least works.

Tested on single-node Mac, multi-node SLURM via odin. Tests included connect/accept, publish/lookup/unpublish, comm_spawn, comm_spawn_multiple, and singleton comm_spawn.

Fixes ticket #1256

This commit was SVN r18804.
2008-07-03 17:53:37 +00:00
Ralph Castain
955d117f5e Add a new grpcomm module that mimics the old 1.2 behavior - it -always- does a modex because it always includes the architecture. Hence, we called it "blind-and-dumb" since it doesn't look to see if this is required - moniker of "bad". :-)
Update the ESS API so we can update the stored arch's should the modex include that info. Update ompi/proc to check/set the arch for remote procs, and add that function call to mpi_init right after the modex is done.

Setup to allow other grpcomm modules to decide whether or not to add the arch to the modex, and to detect if other entries have been made. If not, then the modex can just fall through. Begin setting up some logic in the "basic" module to handle different arch situations.

For now, default to the "bad" module so we will work in all situations, even though we may be sending around more info than we really require.

This fixes ticket #1340

This commit was SVN r18673.
2008-06-18 22:17:53 +00:00
Ralph Castain
9613b3176c Effectively revert the orte_output system and return to direct use of opal_output at all levels. Retain the orte_show_help subsystem to allow aggregation of show_help messages at the HNP.
After much work by Jeff and myself, and quite a lot of discussion, it has become clear that we simply cannot resolve the infinite loops caused by RML-involved subsystems calling orte_output. The original rationale for the change to orte_output has also been reduced by shifting the output of XML-formatted vs human readable messages to an alternative approach.

I have globally replaced the orte_output/ORTE_OUTPUT calls in the code base, as well as the corresponding .h file name. I have test compiled and run this on the various environments within my reach, so hopefully this will prove minimally disruptive.

This commit was SVN r18619.
2008-06-09 14:53:58 +00:00
Jeff Squyres
e7ecd56bd2 This commit represents a bunch of work on a Mercurial side branch. As
such, the commit message back to the master SVN repository is fairly
long.

= ORTE Job-Level Output Messages =

Add two new interfaces that should be used for all new code throughout
the ORTE and OMPI layers (we already make the search-and-replace on
the existing ORTE / OMPI layers):

 * orte_output(): (and corresponding friends ORTE_OUTPUT,
   orte_output_verbose, etc.)  This function sends the output directly
   to the HNP for processing as part of a job-specific output
   channel.  It supports all the same outputs as opal_output()
   (syslog, file, stdout, stderr), but for stdout/stderr, the output
   is sent to the HNP for processing and output.  More on this below.
 * orte_show_help(): This function is a drop-in-replacement for
   opal_show_help(), with two differences in functionality:
   1. the rendered text help message output is sent to the HNP for
      display (rather than outputting directly into the process' stderr
      stream)
   1. the HNP detects duplicate help messages and does not display them
      (so that you don't see the same error message N times, once from
      each of your N MPI processes); instead, it counts "new" instances
      of the help message and displays a message every ~5 seconds when
      there are new ones ("I got X new copies of the help message...")

opal_show_help and opal_output still exist, but they only output in
the current process.  The intent for the new orte_* functions is that
they can apply job-level intelligence to the output.  As such, we
recommend that all new ORTE and OMPI code use the new orte_*
functions, not thei opal_* functions.

=== New code ===

For ORTE and OMPI programmers, here's what you need to do differently
in new code:

 * Do not include opal/util/show_help.h or opal/util/output.h.
   Instead, include orte/util/output.h (this one header file has
   declarations for both the orte_output() series of functions and
   orte_show_help()).
 * Effectively s/opal_output/orte_output/gi throughout your code.
   Note that orte_output_open() takes a slightly different argument
   list (as a way to pass data to the filtering stream -- see below),
   so you if explicitly call opal_output_open(), you'll need to
   slightly adapt to the new signature of orte_output_open().
 * Literally s/opal_show_help/orte_show_help/.  The function signature
   is identical.

=== Notes ===

 * orte_output'ing to stream 0 will do similar to what
   opal_output'ing did, so leaving a hard-coded "0" as the first
   argument is safe.
 * For systems that do not use ORTE's RML or the HNP, the effect of
   orte_output_* and orte_show_help will be identical to their opal
   counterparts (the additional information passed to
   orte_output_open() will be lost!).  Indeed, the orte_* functions
   simply become trivial wrappers to their opal_* counterparts.  Note
   that we have not tested this; the code is simple but it is quite
   possible that we mucked something up.

= Filter Framework =

Messages sent view the new orte_* functions described above and
messages output via the IOF on the HNP will now optionally be passed
through a new "filter" framework before being output to
stdout/stderr.  The "filter" OPAL MCA framework is intended to allow
preprocessing to messages before they are sent to their final
destinations.  The first component that was written in the filter
framework was to create an XML stream, segregating all the messages
into different XML tags, etc.  This will allow 3rd party tools to read
the stdout/stderr from the HNP and be able to know exactly what each
text message is (e.g., a help message, another OMPI infrastructure
message, stdout from the user process, stderr from the user process,
etc.).

Filtering is not active by default.  Filter components must be
specifically requested, such as:

{{{
$ mpirun --mca filter xml ...
}}}

There can only be one filter component active.

= New MCA Parameters =

The new functionality described above introduces two new MCA
parameters:

 * '''orte_base_help_aggregate''': Defaults to 1 (true), meaning that
   help messages will be aggregated, as described above.  If set to 0,
   all help messages will be displayed, even if they are duplicates
   (i.e., the original behavior).
 * '''orte_base_show_output_recursions''': An MCA parameter to help
   debug one of the known issues, described below.  It is likely that
   this MCA parameter will disappear before v1.3 final.

= Known Issues =

 * The XML filter component is not complete.  The current output from
   this component is preliminary and not real XML.  A bit more work
   needs to be done to configure.m4 search for an appropriate XML
   library/link it in/use it at run time.
 * There are possible recursion loops in the orte_output() and
   orte_show_help() functions -- e.g., if RML send calls orte_output()
   or orte_show_help().  We have some ideas how to fix these, but
   figured that it was ok to commit before feature freeze with known
   issues.  The code currently contains sub-optimal workarounds so
   that this will not be a problem, but it would be good to actually
   solve the problem rather than have hackish workarounds before v1.3 final.

This commit was SVN r18434.
2008-05-13 20:00:55 +00:00
Josh Hursey
da2f1c58e2 Some checkpoint/restart cleanup.
* Remove the opal_only option. This was suffering from bit rot, and no one uses it. It can be added back fairly easily if wanted.
 * Cleanup metadata interactions at the local level.
 * Touch up some of the INC funcitonality (fix typos and a minor ordering issue)

This commit was SVN r18416.
2008-05-08 18:47:47 +00:00
Josh Hursey
dcd21d7d07 Some checkpoint/restart fixes in response to r18338 (changes in modex).
Things should be working now.

This commit was SVN r18348.

The following SVN revision numbers were found above:
  r18338 --> open-mpi/ompi@3e55fe6f6d
2008-05-01 17:48:13 +00:00
Ralph Castain
3e55fe6f6d Fold in the revised modex scheme. Move the ompi_proc_t modex portions to the RTE level since the daemons already have that info. Provide each process with the equivalent of a "nidmap" - both a map of what nodes are in the job, and a map of which node each process is on. This enables the use of static ports, though that hasn't been turned "on" in this commit.
Update the rsh tree spawn capability so we spawn the next wave of daemons before launching our own local procs.

Add an ability to encode nodenames for large clusters with contiguous node name numbering schemes - this allows communication of all node names in a few bytes instead of tens-of-bytes/node.

This commit was SVN r18338.
2008-04-30 19:49:53 +00:00
Ralph Castain
fa082cafa9 Shift the architecture calculation from the ompi/datatype engine to the opal/util area. This allows us to compute the architecture earlier in the launch and communicate it outside of the modex.
Note: this is an early preliminary step in the movement of portions of the datatype engine to the opal layer.

This commit was SVN r18198.
2008-04-17 20:43:56 +00:00
Ralph Castain
dc7f45dafd Remove the obsolete and largely unused orte_system_info structure. The only fields that were used in that struct were nodeid and nodename - these have been transferred to the orte_process_info structure.
Only one place used the user name field - session_dir, when formulating the name of the top-level directory. Accordingly, the code for getting the user's id has been moved to the session_dir code.

This commit was SVN r17926.
2008-03-23 23:10:15 +00:00
Brian Barrett
f176c67cd2 Set the nodeid to something somewhat sane if we're not using modex, and
don't set the LOCAL flag just because both procs have an invalid nodeid.

This commit was SVN r17917.
2008-03-21 20:20:00 +00:00
Brian Barrett
5a7ebf5f25 Do not try to update the local process with modex information (from the local
process) as it stomps on information if the modex doesn't exist for the
current platform

This commit was SVN r17916.
2008-03-21 19:20:47 +00:00
Josh Hursey
612ebdc2ac Cleanup some symbol visability issues.
This commit was SVN r17733.
2008-03-05 13:59:25 +00:00
Josh Hursey
3b4073e32c This commit fixes the checkpoint/restart functionality on the trunk. Included in this commit are:
* Extension to the ESS framework to support C/R
 * Fixed support for {{{snapc_base_establish_global_snapshot_dir}}}
 * Fixed FileM support
 * Misc. minor code modifications

There are some outstanding visability issues that I want to fix next.

This commit was SVN r17725.
2008-03-05 04:57:23 +00:00
Ralph Castain
d70e2e8c2b Merge the ORTE devel branch into the main trunk. Details of what this means will be circulated separately.
Remains to be tested to ensure everything came over cleanly, so please continue to withhold commits a little longer

This commit was SVN r17632.
2008-02-28 01:57:57 +00:00
Ralph Castain
54b2cf747e These changes were mostly captured in a prior RFC (except for #2 below) and are aimed specifically at improving startup performance and setting up the remaining modifications described in that RFC.
The commit has been tested for C/R and Cray operations, and on Odin (SLURM, rsh) and RoadRunner (TM). I tried to update all environments, but obviously could not test them. I know that Windows needs some work, and have highlighted what is know to be needed in the odls process component.

This represents a lot of work by Brian, Tim P, Josh, and myself, with much advice from Jeff and others. For posterity, I have appended a copy of the email describing the work that was done:

As we have repeatedly noted, the modex operation in MPI_Init is the single greatest consumer of time during startup. To-date, we have executed that operation as an ORTE stage gate that held the process until a startup message containing all required modex (and OOB contact info - see #3 below) info could be sent to it. Each process would send its data to the HNP's registry, which assembled and sent the message when all processes had reported in.

In addition, ORTE had taken responsibility for monitoring process status as it progressed through a series of "stage gates". The process reported its status at each gate, and ORTE would then send a "release" message once all procs had reported in.

The incoming changes revamp these procedures in three ways:

1. eliminating the ORTE stage gate system and cleanly delineating responsibility between the OMPI and ORTE layers for MPI init/finalize. The modex stage gate (STG1) has been replaced by a collective operation in the modex itself that performs an allgather on the required modex info. The allgather is implemented using the orte_grpcomm framework since the BTL's are not active at that point. At the moment, the grpcomm framework only has a "basic" component analogous to OMPI's "basic" coll framework - I would recommend that the MPI team create additional, more advanced components to improve performance of this step.

The other stage gates have been replaced by orte_grpcomm barrier functions. We tried to use MPI barriers instead (since the BTL's are active at that point), but - as we discussed on the telecon - these are not currently true barriers so the job would hang when we fell through while messages were still in process. Note that the grpcomm barrier doesn't actually resolve that problem, but Brian has pointed out that we are unlikely to ever see it violated. Again, you might want to spend a little time on an advanced barrier algorithm as the one in "basic" is very simplistic.

Summarizing this change: ORTE no longer tracks process state nor has direct responsibility for synchronizing jobs. This is now done via collective operations within the MPI layer, albeit using ORTE collective communication services. I -strongly- urge the MPI team to implement advanced collective algorithms to improve the performance of this critical procedure.


2. reducing the volume of data exchanged during modex. Data in the modex consisted of the process name, the name of the node where that process is located (expressed as a string), plus a string representation of all contact info. The nodename was required in order for the modex to determine if the process was local or not - in addition, some people like to have it to print pretty error messages when a connection failed.

The size of this data has been reduced in three ways:

(a) reducing the size of the process name itself. The process name consisted of two 32-bit fields for the jobid and vpid. This is far larger than any current system, or system likely to exist in the near future, can support. Accordingly, the default size of these fields has been reduced to 16-bits, which means you can have 32k procs in each of 32k jobs. Since the daemons must have a vpid, and we require one daemon/node, this also restricts the default configuration to 32k nodes.

To support any future "mega-clusters", a configuration option --enable-jumbo-apps has been added. This option increases the jobid and vpid field sizes to 32-bits. Someday, if necessary, someone can add yet another option to increase them to 64-bits, I suppose.

(b) replacing the string nodename with an integer nodeid. Since we have one daemon/node, the nodeid corresponds to the local daemon's vpid. This replaces an often lengthy string with only 2 (or at most 4) bytes, a substantial reduction.

(c) when the mca param requesting that nodenames be sent to support pretty error messages, a second mca param is now used to request FQDN - otherwise, the domain name is stripped (by default) from the message to save space. If someone wants to combine those into a single param somehow (perhaps with an argument?), they are welcome to do so - I didn't want to alter what people are already using.

While these may seem like small savings, they actually amount to a significant impact when aggregated across the entire modex operation. Since every proc must receive the modex data regardless of the collective used to send it, just reducing the size of the process name removes nearly 400MBytes of communication from a 32k proc job (admittedly, much of this comm may occur in parallel). So it does add up pretty quickly.


3. routing RML messages to reduce connections. The default messaging system remains point-to-point - i.e., each proc opens a socket to every proc it communicates with and sends its messages directly. A new option uses the orteds as routers - i.e., each proc only opens a single socket to its local orted. All messages are sent from the proc to the orted, which forwards the message to the orted on the node where the intended recipient proc is located - that orted then forwards the message to its local proc (the recipient). This greatly reduces the connection storm we have encountered during startup.

It also has the benefit of removing the sharing of every proc's OOB contact with every other proc. The orted routing tables are populated during launch since every orted gets a map of where every proc is being placed. Each proc, therefore, only needs to know the contact info for its local daemon, which is passed in via the environment when the proc is fork/exec'd by the daemon. This alone removes ~50 bytes/process of communication that was in the current STG1 startup message - so for our 32k proc job, this saves us roughly 32k*50 = 1.6MBytes sent to 32k procs = 51GBytes of messaging.

Note that you can use the new routing method by specifying -mca routed tree - if you so desire. This mode will become the default at some point in the future.


There are a few minor additional changes in the commit that I'll just note in passing:

* propagation of command line mca params to the orteds - fixes ticket #1073. See note there for details.

* requiring of "finalize" prior to "exit" for MPI procs - fixes ticket #1144. See note there for details.

* cleanup of some stale header files

This commit was SVN r16364.
2007-10-05 19:48:23 +00:00
Galen Shipman
77f080575f fix for the cray..
This commit was SVN r16317.
2007-10-03 19:25:23 +00:00
Brian Barrett
48c49cb89c Handle case where modex_recv_string() isn't implemented (ie, the Cray)
This commit was SVN r16267.
2007-09-28 18:50:37 +00:00
Rainer Keller
08634e7e4a - Properly unlock the ompi_proc_lock in case of errors and otherwise.
This commit was SVN r15936.
2007-08-20 16:47:13 +00:00
Brian Barrett
d166a2bb6d Change requested by Ralph -- Remove the dependency on GPR triggers for filling
in the OMPI proc structures.  For now, use an extension of the modex that is
keyed on strings.  Eventually, this should use the attribute put/get that is
part of the RSL interface.

This commit was SVN r15820.
2007-08-09 18:53:28 +00:00
Brian Barrett
58ee6b4e35 More documentation. Yay?
This commit was SVN r15622.
2007-07-25 21:01:10 +00:00
Brian Barrett
5b9fa7e998 reapply r15517 and r15520, which were removed in r15527 so that I could get
the RML/OOB merge in slightly easier

This commit was SVN r15530.

The following SVN revision numbers were found above:
  r15517 --> open-mpi/ompi@41977fcc95
  r15520 --> open-mpi/ompi@9cbc9df1b8
  r15527 --> open-mpi/ompi@2d17dd9516
2007-07-20 02:34:29 +00:00
Brian Barrett
39a6057fc6 A number of improvements / changes to the RML/OOB layers:
* General TCP cleanup for OPAL / ORTE
  * Simplifying the OOB by moving much of the logic into the RML
  * Allowing the OOB RML component to do routing of messages
  * Adding a component framework for handling routing tables
  * Moving the xcast functionality from the OOB base to its own framework

Includes merge from tmp/bwb-oob-rml-merge revisions:

    r15506, r15507, r15508, r15510, r15511, r15512, r15513

This commit was SVN r15528.

The following SVN revisions from the original message are invalid or
inconsistent and therefore were not cross-referenced:
  r15506
  r15507
  r15508
  r15510
  r15511
  r15512
  r15513
2007-07-20 01:34:02 +00:00
Brian Barrett
2d17dd9516 temporarily back our r15517 and 15520 so that I can get the RML / OOB changes
to cleanly apply

This commit was SVN r15527.

The following SVN revision numbers were found above:
  r15517 --> open-mpi/ompi@41977fcc95
2007-07-20 01:10:34 +00:00
Ralph Castain
41977fcc95 Remove the cellid field from the orte_process_name_t structure. This only affects a handful of files in itself, but...
Cleanup ALL instances of output involving the printing of orte_process_name_t structures using the ORTE_NAME_ARGS macro so that the number of fields and type of data match. Replace those values with a new macro/function pair ORTE_NAME_PRINT that outputs a string (using the new thread safe data capability) so that any future changes to the printing of those structures can be accomplished with a change to a single point.

Note that I could not possibly find outputs that directly print the orte_process_name_t fields, but only dealt with those that used ORTE_NAME_ARGS. Hence, you may still have a few outputs that bark during compilation. Also, I could only verify those that fall within environments I can compile on, so other environments may yield some minor warnings.

This commit was SVN r15517.
2007-07-19 20:56:46 +00:00
Sven Stork
d8a369936e - Fix more symbols that should be exported.
This commit was SVN r13824.
2007-02-27 15:17:17 +00:00
Ralph Castain
c7be9a7121 Complete backout of prior sched_yield and paffinity changes
This commit was SVN r13530.
2007-02-07 14:22:37 +00:00
George Bosilca
a02d1c7c8d No more warnings.
This commit was SVN r13382.
2007-01-31 04:27:41 +00:00
Ralph Castain
a338b7e533 Update the proc system to compute and store the number of local procs and my local relative rank during the callback at STG1. This info will be used to locally compute and set the processor affinity and sched_yield (for oversubscribed conditions).
Over to Jeff now for modifying mpi_init accordingly.

Until Jeff makes his changes, nobody should see anything different as the new info just isn't used by anything!

This commit was SVN r13351.
2007-01-29 20:54:55 +00:00
Jeff Squyres
3c5c8c3c4c Refinement of Rainer's r13227 and r13228 (worked with Rainer, Ralph,
and George on these refinements):

 * Rename the static OBJ initializer macro to be
   OPAL_OBJ_STATIC_INIT(class)
 * Ensure that all static OBJ initializations get a refcount of 1
   (doesn't ''really'' matter, since they're static, it should never
   get to the point where the OBJ is DESTRUCTed, but more correct
   nonetheless)
 * Add a "magic number" to the OBJ when compiling with debug support.
   The magic number does some rudimentary support to ensure that
   you're operating on a valid OBJ (and fails an assertion if you're
   not).  Check to ensure that the memory contains the magic number
   when performing actions of OBJ's.  Also remove the magic number
   when DESTRUCTing OBJs, so that if, for example, an OBJ is
   DESTRUCTed more than once, we'll fail the magic number assert.

This commit was SVN r13338.

The following SVN revision numbers were found above:
  r13227 --> open-mpi/ompi@96030de97b
  r13228 --> open-mpi/ompi@c2e9075d29
2007-01-27 13:44:03 +00:00
George Bosilca
3cde822d98 Add missing headers.
This commit was SVN r12951.
2007-01-02 08:04:34 +00:00
Brian Barrett
4e157380bf Heterogeneous support changes:
* Add line about heterogeneous support to ompi_info output
  * Print warning and abort if heterogeneous detected and 
    no heterogeneous support available.

Refs trac:587

This commit was SVN r12943.

The following Trac tickets were found above:
  Ticket 587 --> https://svn.open-mpi.org/trac/ompi/ticket/587
2006-12-30 17:13:18 +00:00
Ralph Castain
0a5d41857a Complete next round of message size reduction: "strip" the descriptive info from the returned values. I have now added a flag to the gpr address mode (ORTE_GPR_STRIPPED) that instructs the gpr to not include segment names or tokens in the returned gpr_value_t objects.
I found only two places that were looking at the tokens:

1. the odls - we used the tokens to separately process the globals container data from everything else. In this case, I left the subscription that returned the globals data alone, but "stripped" the subscription that returned the launch data for the procs. These subscriptions have nothing to do with the xcast message.

2. the pml_base_modex - the callback function was getting process names from the returned tokens. Actually, this function was doing a very bad thing - it was assuming that the first token returned was *always* the process name. This is currently true, but is one of those assumptions that someone could have easily changed - and suddenly found the system inexplicably failing. I modified the function to (a) get the name sent back to us, (b) "stripped" the value structures of tokens and segment strings, and (c) correctly obtained process names from the returned values. I also reindented the heck out of the code so it was legible (at least, to my old eyes).

This commit was SVN r12813.
2006-12-09 23:10:25 +00:00
Brian Barrett
98884e45e4 Clean up the way procs are added to the global process list after MPI_INIT:
* Do not add new procs to the global list during modex callback or
    when sharing orte names during accept/connect.  For modex, we
    cache the modex info for later, in case that proc ever does get
    added to the global proc list.  For accept/connect orte name
    exchange between the roots, we only need the orte name, so no
    need to add a proc structure anyway.  The procs will be added
    to the global process list during the proc exchange later in 
    the wireup process
  * Rename proc_get_namebuf and proc_get_proclist to proc_pack
    and proc_unpack and extend them to include all information
    needed to build that proc struct on a remote node (which
    includes ORTE name, architecture, and hostname).  Change
    unpack to call pml_add_procs for the entire list of new
    procs at once, rather than one at a time.
  * Remove ompi_proc_find_and_add from the public proc
    interface and make it a private function.  This function
    would add a half-created proc to the global proc list, so
    making it harder to call is a good thing.

This means that there's only two ways to add new procs into the global proc list at this time: During MPI_INIT via the call to ompi_proc_init, where my job is added to the list and via ompi_proc_unpack using a buffer from a packed proc list sent to us by someone else.  Currently, this is enough to implement MPI semantics.  We can extend the interface more if we like, but that may require HNP communication to get the remote proc information and I wanted to avoid that if at all possible.

Refs trac:564

This commit was SVN r12798.

The following Trac tickets were found above:
  Ticket 564 --> https://svn.open-mpi.org/trac/ompi/ticket/564
2006-12-07 19:56:54 +00:00
Ralph Castain
6d6cebb4a7 Bring over the update to terminate orteds that are generated by a dynamic spawn such as comm_spawn. This introduces the concept of a job "family" - i.e., jobs that have a parent/child relationship. Comm_spawn'ed jobs have a parent (the one that spawned them). We track that relationship throughout the lineage - i.e., if a comm_spawned job in turn calls comm_spawn, then it has a parent (the one that spawned it) and a "root" job (the original job that started things).
Accordingly, there are new APIs to the name service to support the ability to get a job's parent, root, immediate children, and all its descendants. In addition, the terminate_job, terminate_orted, and signal_job APIs for the PLS have been modified to accept attributes that define the extent of their actions. For example, doing a "terminate_job" with an attribute of ORTE_NS_INCLUDE_DESCENDANTS will terminate the given jobid AND all jobs that descended from it.

I have tested this capability on a MacBook under rsh, Odin under SLURM, and LANL's Flash (bproc). It worked successfully on non-MPI jobs (both simple and including a spawn), and MPI jobs (again, both simple and with a spawn).

This commit was SVN r12597.
2006-11-14 19:34:59 +00:00
George Bosilca
3f0a7cad9e The last patch for Windows support. Mostly casting and conversion to C++ friendly headers.
This commit was SVN r11400.
2006-08-24 16:38:08 +00:00
Ralph Castain
5dfd54c778 With the branch to 1.2 made....
Clean up the remainder of the size_t references in the runtime itself. Convert to orte_std_cntr_t wherever it makes sense (only avoid those places where the actual memory size is referenced).

Remove the obsolete oob barrier function (we actually obsoleted it a long time ago - just never bothered to clean it up).

I have done my best to go through all the components and catch everything, even if I couldn't test compile them since I wasn't on that type of system. Still, I cannot guarantee that problems won't show up when you test this on specific systems. Usually, these will just show as "warning: comparison between signed and unsigned" notes which are easily fixed (just change a size_t to orte_std_cntr_t).

In some places, people didn't use size_t, but instead used some other variant (e.g., I found several places with uint32_t). I tried to catch all of them, but...

Once we get all the instances caught and fixed, this should once and for all resolve many of the heterogeneity problems.

This commit was SVN r11204.
2006-08-15 19:54:10 +00:00
Brian Barrett
47725c9b02 * Add new PML (CM) and network drivers (MTL) for high speed
interconnects that provide matching logic in the library.
  Currently includes support for MX and some support for
  Portals
* Fix overuse of proc_pml pointer on the ompi_proc structuer, 
  splitting into proc_pml for pml data and proc_bml for
  the BML endpoint data
* bug fixes in bsend init code, which wasn't being used by
  the OB1 or DR PMLs...

This commit was SVN r10642.
2006-07-04 01:20:20 +00:00
Jeff Squyres
51c5516815 Add a new MCA parameter: mpi_keep_peer_hostnames. If this is nonzero,
(which is currently the default, although we may argue over this later
:-) ), a new field in the ompi_proc_t named proc_hostname will have
the string hostname of that peer.  If 0, this field will be NULL.

This allows for printing nicer error messages in environments where
peer hostnames are not otherwise easily obtainable, such as the mvapi
BTL (requested by Sandia, who has both a *huge* number of nodes and
6GB of RAM per node, so they don't care about the extra memory usage
;-) ).

This commit was SVN r9902.
2006-05-11 19:46:21 +00:00
Brian Barrett
683dfd0135 * create a proper convertor for the remote proc if the architecture is
different

This commit was SVN r9334.
2006-03-20 01:13:41 +00:00
Rainer Keller
762c62b04a - Free str, in case it is allocated.
This commit was SVN r9232.
2006-03-09 17:23:00 +00:00
Rainer Keller
517c0d769c - Check for ORTE-error return code
- Free keys[2] as well

This commit was SVN r9203.
2006-03-05 11:18:19 +00:00
Brian Barrett
88448cf40a * fix setting of remote proc architecture integers. We were setting all
procs architecture ints to the architecture of the last proc we got 
  in the list from the gpr, which is probably not what we intended to
  do...

This commit was SVN r9144.
2006-02-26 00:05:25 +00:00
Brian Barrett
566a050c23 Next step in the project split, mainly source code re-arranging
- move files out of toplevel include/ and etc/, moving it into the
    sub-projects
  - rather than including config headers with <project>/include, 
    have them as <project>
  - require all headers to be included with a project prefix, with
    the exception of the config headers ({opal,orte,ompi}_config.h
    mpi.h, and mpif.h)

This commit was SVN r8985.
2006-02-12 01:33:29 +00:00
Ralph Castain
4b9f015c0b Merge in the new data support subsystem for ORTE. MPI folks should not notice a difference. Longer explanation will be sent to developers mailing list.
This commit was SVN r8912.
2006-02-07 03:32:36 +00:00
Jeff Squyres
42ec26e640 Update the copyright notices for IU and UTK.
This commit was SVN r7999.
2005-11-05 19:57:48 +00:00
Brian Barrett
1302cb4072 The next in a long line of crazed build system changes from Brian. This was
originally suggested by Ralf Wildenhues, to try to speed autogen, configure,
and make (and possibly even make install).  Use automake's include directive
to drastically reduce the number of Makefile files (although the number of
Makefile.am files is the same - most are just included in a top-level
Makefile.am).  Also use an Automake SUBDIRs feature to eliminate the
dynamic-mca tree, which was no longer really needed.  This makes adding
a framework easier (since you don't have to remember the dynamic-mca
tree) and makes building faster (as make doesn't have to recurse through
the dynamic-mca tree)

This commit was SVN r7777.
2005-10-17 00:21:10 +00:00
Brian Barrett
ed56e743b7 * update configure.ac to use the modern version of AC_INIT and
AM_INIT_AUTOMAKE, instead of the deprecated version.
* Work around dumbness in modern AC_INIT that requires the version
  number to be set at autoconf time (instead of at configure time, as
  it was before).  Set the version number, minus the subversion r number,
  at autoconf time.  Override the internal variables to include the r
  number (if needed) at configure time.  Basically, the right thing
  should always happen.  The only place it might not is the version
  reported as part of configure --help will not have an r number.
* Since AM_INIT_AUTOMAKE taks a list of options, no need to specify
  them in all the Makefile.am files.
* Addes support for subdir-objects, meaning that object files are put
  in the directory containing source files, even if the Makefile.am is
  in another directory.  This should start making it feasible to
  reduce the number of Makefile.am files we have in the tree, which
  will greatly reduce the time to run autogen and configure.

This commit was SVN r7211.
2005-09-07 05:54:53 +00:00
Jeff Squyres
99db862e9b Fix silly compiler warning
This commit was SVN r7144.
2005-09-02 10:18:06 +00:00
Ralph Castain
03e45e6723 Two quick additions:
1. Added OMPI_PROC_ARCH as a defined registry key and added the code so that the architecture info gets properly transmitted across all processes using the startup message.

2. Added an OMPI_MODEX_KEY definition and removed the hard-coded "modex" key from pml_modex_exchange

This commit was SVN r7129.
2005-09-01 15:05:03 +00:00
Ralph Castain
96f4bb7a63 Hey, sports fans!! Guess what??
Here's the huge registry check-in you've all been waiting for with baited breath. The revised version sends a single message to all processes at the various stage gates, thus making the startup much more scalable. I could provide you with all the tawdry details, but won't for now - you are welcome to ask, though, and I'll merrily bore your ears to tears.

In addition, the commit contains the following:

1. set the ignore properties on ompi/debuggers and orte/mca/pls/poe

2. Added simplified subscribe and put functions to the registry's API. I have also converted all of the ompi functions that registered subscriptions to the new API, and caught their associated put's as well.

In a follow-on commit, I'll be adding support for George's hetero arch registry subscription (wanted to get this one in first).

This commit was SVN r7118.
2005-09-01 01:07:30 +00:00
Jeff Squyres
c9cdb36b0b Finally get this right: move orte_sys_info.[ch] back into the orte
tree.
- fix up #include's throughout the tree (yay contrib/search_replace.pl!)
- remove a few extraneous #include's
- remove orte_sys_info*() from opal_init()/opal_finalize() (it's
  already in orte_init_stage1() and orte_system_finalize())
- remove dependencies in opal on orte_system_info -- util/os_path.c
  and util/os_create_dirpath.c (they only used path_sep, anyway --
  easily changed to #defines)

This commit was SVN r7059.
2005-08-26 21:03:41 +00:00
George Bosilca
8b93cb7661 Rename all the functions starting with mca_base_modex to mca_pml_base_modex.
Change all the places where they are used to fit the new name.

Remove the code to check the remote arch from the PML. We will have a GPR mechanism
in ompi_mpi_initialize to do that.

This commit was SVN r6750.
2005-08-05 18:03:30 +00:00
Ralph Castain
19d58ee17e First phase of the scalable RTE changes:
1. Modify the registry to eliminate redundant data copying for startup messages.

2. Revise the subscription/trigger system to avoid redundant storage of triggers and subscriptions. This dramatically reduces the search time when a registry action occurs - to illustrate the point, there are now only a handful of triggers on the system for each job. Before, there were a handful of triggers for each PROCESS in the job, all of which had to be checked every time something happened on the registry. This is much, much faster now.

3. Update all subscriptions to the new format. There are now "named" subscriptions - this allows you to "name" a subscription that all the processes will be using. The first one to hit the registry actually defines the subscription. From then on, any subsequent "subscribes" to the same name just cause that process to "attach" to the existing subscription. This keeps the number of subscriptions being tracked by the registry to a minimum, while ensuring that each process still gets notified.

4. Do the same for triggers.

Also fixed a duplicate subscription problem that was causing people to receive data equal to the number of processes times the data they should have received from a trigger/subscription. Sorry about that... :-( ...but it's all better now!

Uncovered a situation where the modex data seems to be getting entered on the registry a second time - the latter time coming after the compound command has been "fired", thereby causing all the subscriptions to fire. Asked Tim and Jeff to look into this.

Second phase of the changes will involve modifying the xcast system so that the same message gets sent to all processes. This will further reduce the message traffic, and - once we have a true "broadcast" version of xcast - really speed things up and improve scalability.

This commit was SVN r6542.
2005-07-18 18:49:00 +00:00
Jeff Squyres
94160da4c0 - A bunch of little pedantic / style fixes
- Change ompi_proc_world() to only return the procs in this job (as
  opposed to all of them)
- Add a subscription that fires during MPI_INIT (stg1) for figuring
  out which procs are on my local node.  Need to figure out what to do
  in the esoteric cases -- but the obvious one (Red Storm), where
  subscriptions are never fired, is ok, because by definition, no
  other procs will be on my node, so their default value (not on my
  node) is ok.
  --> Need to have RHC check this code; it seems to work, but I think
      I'm getting too much data back from the subscription.
- End result is that any proc that is on my node will have its
  OMPI_PROC_FLAG_LOCAL bit set on its proc->proc_flags field.
- Added/corrected a few comments in proc.h.

This commit was SVN r6507.
2005-07-14 22:43:01 +00:00
George Bosilca
a59216d504 Do not forget to release the convertor when the proc get destroyed.
This commit was SVN r6447.
2005-07-12 20:25:47 +00:00
Brian Barrett
a13166b500 * rename ompi_output to opal_output
This commit was SVN r6329.
2005-07-03 23:31:27 +00:00
Brian Barrett
39dbeeedfb * rename locking code from ompi to opal
This commit was SVN r6327.
2005-07-03 22:45:48 +00:00
Brian Barrett
761402f95f * rename ompi_list to opal_list
This commit was SVN r6322.
2005-07-03 16:22:16 +00:00
Brian Barrett
499e4de1e7 * rename ompi_object and ompi_class to opal_object and opal_class
This commit was SVN r6321.
2005-07-03 16:06:07 +00:00
Jeff Squyres
aa056f7bfd First cut of OMPI Makefile.am's, plus a few more catchup updates in orte
This commit was SVN r6286.
2005-07-02 15:06:47 +00:00
Jeff Squyres
4ab17f019b Rename src -> ompi
This commit was SVN r6269.
2005-07-02 13:43:57 +00:00