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Jeff Squyres
3da579139b More corrections w.r.t. process groups
To accompany r31092 and r310924, also ensure to create a new process
group in the child right after the orted forks.  Add trivial configury
to ensure that we have setpgid, and only do the setpgid/getpgid if we
have setpgid.

Without this commit, killing the entire process group can do
unexpected things (e.g., kill the orted, mpirun, and even mpirun's
parent!).

cmr=v1.7.5:reviewer=rhc

This commit was SVN r31132.

The following SVN revision numbers were found above:
  r31092 --> open-mpi/ompi@99c9ecaed0

The following SVN revisions from the original message are invalid or
inconsistent and therefore were not cross-referenced:
  r310924
2014-03-18 21:31:01 +00:00
Ralph Castain
545ac7dc58 Remove the job_control_forwarding logic as we want *any* signal to go to all members of the process group
Refs trac:4404

This commit was SVN r31094.

The following Trac tickets were found above:
  Ticket 4404 --> https://svn.open-mpi.org/trac/ompi/ticket/4404
2014-03-17 22:45:33 +00:00
Ralph Castain
99c9ecaed0 Ensure that we send the specified signal to the entire process group of each member of the pid provided to us. This ensures that any children spawned by our children also see the signal
cmr=v1.7.5:reviewer=jsquyres

This commit was SVN r31092.
2014-03-17 22:12:15 +00:00
Ralph Castain
081669b440 When pretty-printing binding info, we need to pass the topology down to the routine as the mapper isn't always working with the local topology - otherwise, we get an erroneous help message. Thanks to Tetsuya Mishima for reporting it
cmr=v1.7.5:reviewer=rhc:subject=fix pretty-print of bindings

This commit was SVN r30968.
2014-03-10 15:53:07 +00:00
Ralph Castain
c9465d97b4 Resolve a race condition when responding to a SIGTERM to ensure that any final message from the application is correctly output. Remove a duplicate command, reduce the priority of the daemon exit command to MSG so that the IOF will have a chance to output cached messages. Update the signal trapping test.
Thanks to Paul Kapinos for reporting the problem.

cmr=v1.7.5:reviewer=jsquyres:subject=resolve a race condition

This commit was SVN r30942.
2014-03-05 04:38:17 +00:00
Ralph Castain
0ac97761cc Now that we are binding by default, the issue of #slots and what to do when oversubscribed has become a bit more complicated. This isn't a problem in managed environments as we are always provided an accurate assignment for the #slots, or when -host is used to define the allocation since we automatically assume one slot for every time a node is named.
The problem arises when a hostfile is used, and the user provides host names without specifying the slots= paramater. In these cases, we assign slots=1, but automatically allow oversubscription since that number isn't confirmed. We then provide a separate parameter by which the user can direct that we assign the number of slots based on the sensed hardware - e.g., by telling us to set the #slots equal to the #cores on each node. However, this has been set to "off" by default.

In order to make this a little less complex for the user, set the default such that we automatically set #slots equal to #cores (or #hwt's if use_hwthreads_as_cpus has been set) only for those cases where the user provides names in a hostfile but does not provide slot information.

Also cleanup some a couple of issues in the mapping/binding system:

* ensure we only override the binding directive if we are oversubscribed *and* overload is not allowed

* ensure that the MPI procs don't attempt to bind themselves if they are launched by an orted as any binding directive (no matter what it was) would have been serviced by the orted on launch

* minor cleanup to the warning message when oversubscribed and binding was requested

cmr=v1.7.5:reviewer=rhc:subject=update mapping/binding system

This commit was SVN r30909.
2014-03-03 16:46:37 +00:00
Ralph Castain
61a21e4f31 Based on Tetsuya's patch, with some changes, correct the case of map-by node where multiple cpus/rank are requested and result in a non-integer match with num slots. Also correct tests for binding policy given to use the proper macro.
Refs trac:4296

This commit was SVN r30857.

The following Trac tickets were found above:
  Ticket 4296 --> https://svn.open-mpi.org/trac/ompi/ticket/4296
2014-02-26 18:12:23 +00:00
Adrian Reber
fde1040d2f Use unique collective ids for the checkpoint/restart code
This commit was SVN r30552.
2014-02-04 14:03:05 +00:00
Ralph Castain
193cceb483 Okay, since a certain other RM out there made a fuss about being able to lock their daemons to specified cores, offer the same option here. The MCA param orte_daemon_cores can be used to specify which core(s) you want the orte daemons to use. This will have no bearing on the application procs - unbound will remain unbound, and binding directives will be applied to the apps.
Yippee skippee...

This commit was SVN r30513.
2014-01-30 23:50:14 +00:00
Ralph Castain
fb9e427320 One last corner case - when encountering an overload condition (e.g., by comm_spawning more procs than we have cores) and we are using the default binding policy, do *not* bind the new procs to anything as this can cause major problems. Instead, let the spawn succeed since the user didn't specifically ask to be bound, and leave the new procs as unbound.
Refs trac:4077

This commit was SVN r30200.

The following Trac tickets were found above:
  Ticket 4077 --> https://svn.open-mpi.org/trac/ompi/ticket/4077
2014-01-09 22:39:34 +00:00
Ralph Castain
f179f2086b Do a better job of reporting bindings - if someone gives a spec that binds us to all processors, then we are effectively unbound and should report it clearly instead of outputting a long line of B's.
cmr=v1.7.4:reviewer=jsquyres:subject=Do a better job of reporting bindings

This commit was SVN r30179.
2014-01-09 16:16:16 +00:00
Brian Barrett
8b778903d8 Fix longstanding issue with our multi-project support. Rather than using
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.
2014-01-07 22:11:15 +00:00
Ralph Castain
d049731911 Add pubsub pmi component to list of components to avoid when indirect launch used
Refs trac:4032

This commit was SVN r30083.

The following Trac tickets were found above:
  Ticket 4032 --> https://svn.open-mpi.org/trac/ompi/ticket/4032
2013-12-25 16:25:37 +00:00
Ralph Castain
81df8d09ca Avoid use of PMI components when launched via mpirun as this is just unnecessary overhead that can cause confusion.
cmr=v1.7.4:reviewer=miked:subject=Avoid use of PMI components when launched via mpirun

This commit was SVN r30078.
2013-12-24 16:32:31 +00:00
Ralph Castain
55cd65b149 Don't warn about binding (process and/or memory) if the node cannot do it or if we would overload, but it wasn't specifically requested by the user (i.e., it is the result of the default policy). Instead, just don't bind and quietly move along.
Reset topology usage for each node as we bind as multiple nodes may be linked to the same topology object. This will need to be revisited for scale as it does take some non-zero time to reset the usage each iteration. However, storing individual topology objects for every node consumes memory, so it's a tradeoff.

cmr=v1.7.4:reviewer=jsquyres:subject=Eliminate excessive binding/memory warnings

This commit was SVN r29978.
2013-12-19 16:31:45 +00:00
Ralph Castain
f4f2287958 Singletons currently start out by spawning an HNP - this is required solely in the cases where the singleton subsequently calls MPI_Comm_spawn or publishes port info without support from an external orte-server. In all other cases, the HNP is of no value and can actually be a detriment by creating additional overhead on the node. This is particularly concerning for async operations where processes may begin as singletons and then dynamically wireup to perform pt2pt communications.
So we now allow singletons to start on their own, only spawning an HNP when initiating an operation that actually requires it.

cmr:v1.7.4:reviewer=jsquyres

This commit was SVN r29354.
2013-10-04 02:58:26 +00:00
Ralph Castain
e8697de521 Deal with PGI compilers on the Mac by initializing a global variable.
cmr:v1.6.6:reviewer=jsquyres
cmr:v1.7.3:reviewer=jsquyres

This commit was SVN r29129.
2013-09-05 21:40:50 +00:00
Ralph Castain
a200e4f865 As per the RFC, bring in the ORTE async progress code and the rewrite of OOB:
*** 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.
2013-08-22 16:37:40 +00:00
Jeff Squyres
089c632cce Remove a bunch of dead code: gcc 4.7 warns of set-but-unused
variables.  So get rid of them.

This commit was SVN r28538.
2013-05-17 21:45:49 +00:00
Jeff Squyres
349ee654c1 Fix some --without-hwloc compile errors. Also remove one
assigned-but-not-used variable assignment.

This commit was SVN r28321.
2013-04-10 15:08:31 +00:00
Ralph Castain
1f011bef99 Cleanup the updated sys limits capability. Fix a few copy/paste bugs (my bad). Shift the limit set to the ODLS default module so that we sete the limits for all apps, even those that don't call opal_init. Leave it in opal_init as well to support direct-launch apps, but ensure we only set the limits once by removing the envar after launch by ODLS.
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.
2013-04-04 16:00:17 +00:00
Nathan Hjelm
c041156f60 Update ORTE frameworks to use the MCA framework system.
This commit was SVN r28240.
2013-03-27 21:14:43 +00:00
Nathan Hjelm
cf377db823 MCA/base: Add new MCA variable system
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.
2013-03-27 21:09:41 +00:00
Ralph Castain
cf9796accd Remove the old configure option for disabling full rte support - we now use the OMPI rte framework for such purposes
This commit was SVN r28134.
2013-02-28 01:35:55 +00:00
Ralph Castain
347df93cd4 Handle the case of someone specifying a directory for the application. Ensure we get a non-zero exit status and clarify the error message.
cmr:v1.7

This commit was SVN r28119.
2013-02-27 01:36:21 +00:00
Ralph Castain
8d2fa3693b First cut at removing the native Windows support. Remove all the Windows-specific components, and the .windows files sprinkled around. Remove the Windows platform files and MTT scripts. Update the NEWS to point Windows users to the cygwin package.
This commit was SVN r28116.
2013-02-26 20:44:56 +00:00
Ralph Castain
c0b670bea8 I guess some profiling tools and debuggers require that the argv[0] of each rank be unique so they can create a filename based on that value. For those obscure cases, provide an mpirun cmd line option that indexes each argv[0] by rank
This commit was SVN r28064.
2013-02-15 20:20:49 +00:00
Ralph Castain
b9897267ef Cleanup report-bindings so it always reports the actual binding instead of what was requested. Ensure we don't report twice if it is an MPI process being launched.
This commit was SVN r28057.
2013-02-14 17:24:28 +00:00
Ralph Castain
2504da1ac9 Remove stale code - message arrival time doesn't really mean much anymore.
This commit was SVN r27905.
2013-01-24 23:02:02 +00:00
Ralph Castain
bd887f7f56 Add a new "test" component to the DFS that treats all files as remote in order to test the app-to-daemon interactions on a single machine. Set a global param to indicate we are using staged execution. Add a param to indicate it is okay for non-MPI processes to execute without finalizing. Cleanup file map load and fetch operations.
This commit was SVN r27587.
2012-11-10 14:09:12 +00:00
Nathan Hjelm
bdedd8b0d3 Per RFC modify the behavior of mca_base_components_close to NOT close the output. Modify frameworks to always close their output and set to -1.
Reasoning: The old behavior was a little confusing. mca_base_components_open does not open an output stream so it is a little unexpected that mca_base_components_close does. To add to this several frameworks (that don't use mca_base_components_close) failed to close their output in the framework close function and others closed their output a second time. This change is an improvement to the symantics of mca_base_components_open/close as they are now symetric in their functionality.

This commit was SVN r27570.
2012-11-06 19:09:26 +00:00
Nathan Hjelm
2acd0f83de Revert "Revert r27451 and r27456 - the cmd line parser is incorrectly marking the application as an MCA parameter".
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
2012-10-30 19:45:18 +00:00
Ralph Castain
e6014bf2e1 Revert r27451 and r27456 - the cmd line parser is incorrectly marking the application as an MCA parameter
This commit was SVN r27477.

The following SVN revision numbers were found above:
  r27451 --> open-mpi/ompi@d59034e6ef
  r27456 --> open-mpi/ompi@ecdbf34937
2012-10-24 18:38:44 +00:00
Nathan Hjelm
d59034e6ef MCA: remove deprecated mca_base_param functions (mca_base_param_register_int, mca_base_param_register_string, mca_base_param_environ_variable). Remove all uses of deprecated functions.
cmr:v1.7

This commit was SVN r27451.
2012-10-17 20:17:37 +00:00
Ralph Castain
285a3b168d Add an ability to specify the max number of simultaneous procs/node for an application when operating in staged mode. Change some debug statements from OPAL_OUTPUT_VERBOSE to opal_output_verbose so they are available in optimized builds.
This commit was SVN r27445.
2012-10-14 03:31:32 +00:00
George Bosilca
6ec41400b3 Fix the error message in case a daemon does not succeed at killing the
local offspring.

This commit was SVN r27362.
2012-09-24 15:25:21 +00:00
Ralph Castain
d5279b0dc8 Make an attempt to protect hwloc cset2str from segfaulting in weird scenario
This commit was SVN r27361.
2012-09-23 16:51:51 +00:00
Ralph Castain
c82cfecc1c Cleanup comm_spawn for the multi-node case where at least one new process isn't spawned on every node. Avoid the complexities of trying to execute a daemon collective across the dynamic spawn as it becomes too hard to ensure that all daemons participate or are accounted for - instead, use a less scalable but workable solution of sending the data directly between the participating procs. Ensure that singletons get their collectives properly defined at startup so the spawned "HNP" is ready for them.
As a secondary cleanup, the HNP doesn't need to update its nidmap during an xcast as it already has an up-to-date picture of the situation. So just dump that data and move along.

This commit was SVN r27318.
2012-09-12 11:31:36 +00:00
Ralph Castain
387f657fc2 Nuts - forgot to include this with the MPI Ticket 313 stuff. Set some of the envars needed for MPI_INFO_ENV
This commit was SVN r27304.
2012-09-11 20:35:09 +00:00
Ralph Castain
38ce23db43 Add some protection to allow NULL bytes in byte objects and NULL strings to be handled cleanly in nidmaps and modex entries. Ensure there is a valid nidmap available for the HNP to pass down to any local procs when it is operating alone.
This commit was SVN r27188.
2012-08-31 01:07:36 +00:00
Ralph Castain
1b659de132 Get staged execution working on multi-node setups. Improve efficiency by only remapping if all procs not yet mapped in the job.
This commit was SVN r27181.
2012-08-29 20:35:52 +00:00
Ralph Castain
98580c117b Introduce staged execution. If you don't have adequate resources to run everything without oversubscribing, don't want to oversubscribe, and aren't using MPI, then staged execution lets you (a) run as many procs as there are available resources, and (b) start additional procs as others complete and free up resources. Adds a new mapper as well as a new state machine.
Remove some stale configure.m4's we no longer need.

Optimize the nidmaps a bit by only sending info that has changed each time, instead of sending a complete copy of everything. Makes no difference for the typical MPI job - only impacts things like staged execution where we are sending multiple (possibly many) launch messages.

This commit was SVN r27165.
2012-08-28 21:20:17 +00:00
Ralph Castain
d6cbff6d4e Since the preload flags are at the app_context level, we need to link only those files/exe's that pertain to each app_context to the corresponding procs. Also, gain a little optimization by checking to ensure we only send files once - this probably won't work when daemons are created on-the-fly, but that's for some other day
This commit was SVN r27134.
2012-08-24 16:16:30 +00:00
Ralph Castain
e0c39c94e8 Complete the cleanup of the preload files system. Remove the dest_dir option as moving things to arbitrary locations - especially absolute paths - can prove disastrous. Remove the preload_libs option as these can be treated as just files. Cleanup some of the pack/unpack code as the dss handles NULL strings just fine. Deal a little better with absolute paths, noting that tar now strips the leading '/' for us (showing my age as it didn't used to do so).
Remove the odls_base_state.c file as that code is now covered by the new broadcast form of preload_files.

This commit was SVN r27127.
2012-08-24 02:28:29 +00:00
Ralph Castain
b4a544ad2a Per discussion with Josh, use the --preload-xxx cmd line options to broadcast files to all nodes. Add --set-cwd-to-session-dir option to start procs in their session directories. Add OMPI_FILE_LOCATION envar to tell procs where their prepositioned files went.
This commit was SVN r27125.
2012-08-23 21:28:05 +00:00
Ralph Castain
7237a938bf Extend the filem interface to support prepositioning and linking required local files for execution. Create a new "raw" module that uses xcast to send the files to all nodes as this is faster than doing an scp in a linear pattern
This commit was SVN r27118.
2012-08-22 21:43:20 +00:00
Ralph Castain
cb48fd52d4 Implement the MPI_Info part of MPI-3 Ticket 313. Add an MPI_info object MPI_INFO_GET_ENV that contains a number of run-time related pieces of info. This includes all the required ones in the ticket, plus a few that specifically address recent user questions:
"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.
2012-08-12 01:28:23 +00:00
Ralph Castain
0dfe29b1a6 Roll in the rest of the modex change. Eliminate all non-modex API access of RTE info from the MPI layer - in some cases, the info was already present (either in the ompi_proc_t or in the orte_process_info struct) and no call was necessary. This removes all calls to orte_ess from the MPI layer. Calls to orte_grpcomm remain required.
Update all the orte ess components to remove their associated APIs for retrieving proc data. Update the grpcomm API to reflect transfer of set/get modex info to the db framework.

Note that this doesn't recreate the old GPR. This is strictly a local db storage that may (at some point) obtain any missing data from the local daemon as part of an async methodology. The framework allows us to experiment with such methods without perturbing the default one.

This commit was SVN r26678.
2012-06-27 14:53:55 +00:00
Ralph Castain
078a4667e4 Some more cleanup on direct routed when daemons are involved
This commit was SVN r26594.
2012-06-11 23:46:22 +00:00
Ralph Castain
d6279fc971 Fix the debugger daemon launch support to fit the new state machine. Treat debugger daemons just like any other job, except that we map them only to nodes where an app process currently exists (as opposed to every node in the system). Trigger breakpoint and rank0 release only after the debugger daemons are in position.
This commit was SVN r26556.
2012-06-06 02:01:23 +00:00
Jeff Squyres
0b8849e2c4 Make "mpirun --report-bindings" have a user-friendly output (i.e.,
readable by normal human beings, vs. having a bitmap of physical
PU's).  Use the new hwloc base prettyprint functions to generate the
output. 

This commit was SVN r26533.
2012-06-01 16:35:31 +00:00
Jeff Squyres
cab31eafce Revert r26413: it was causing too much confusion. When an MPI proc
exits with status 77, the whole job will be killed, but mpirun will
still return an exit status of 77, so MTT will report it as a skip
anyway. 

This commit was SVN r26445.

The following SVN revision numbers were found above:
  r26413 --> open-mpi/ompi@02aa36f2e5
2012-05-16 14:45:58 +00:00
Jeff Squyres
02aa36f2e5 ORTE defaults to killing the entire job when any process exits with a
nonzero status (we polled other MPI implementations since one one in
the OMPI community had a concrete opinion on what behavior to do here
-- all other MPI's seem to adhere to this behavior, too).

This commit adds an MCA parameter that allows us to tell ORTE to
''not'' kill jobs when a process exits with a status of 77, meaning
the GNU testing standard of "this test was skipped".  In all the OMPI
tests, all procs will either return 77 or not.  So if they all return
77, mpirun won't consider it an error, but will still return an exit
status of 77 (so that MTT can know that the test was cleanly skipped).

This commit was SVN r26413.
2012-05-08 21:49:05 +00:00
Ralph Castain
70a106fa71 Fix binding on remote nodes - need to pass the binding bitmap!
This commit was SVN r26403.
2012-05-08 03:52:39 +00:00
Jeff Squyres
2ba10c37fe Per RFC, bring in the following changes:
* Remove paffinity, maffinity, and carto frameworks -- they've been
   wholly replaced by hwloc.
 * Move ompi_mpi_init() affinity-setting/checking code down to ORTE.
 * Update sm, smcuda, wv, and openib components to no longer use carto.
   Instead, use hwloc data.  There are still optimizations possible in
   the sm/smcuda BTLs (i.e., making multiple mpools).  Also, the old
   carto-based code found out how many NUMA nodes were ''available''
   -- not how many were used ''in this job''.  The new hwloc-using
   code computes the same value -- it was not updated to calculate how
   many NUMA nodes are used ''by this job.''
   * Note that I cannot compile the smcuda and wv BTLs -- I ''think''
     they're right, but they need to be verified by their owners.
 * The openib component now does a bunch of stuff to figure out where
   "near" OpenFabrics devices are.  '''THIS IS A CHANGE IN DEFAULT
   BEHAVIOR!!''' and still needs to be verified by OpenFabrics vendors
   (I do not have a NUMA machine with an OpenFabrics device that is a
   non-uniform distance from multiple different NUMA nodes).
 * Completely rewrite the OMPI_Affinity_str() routine from the
   "affinity" mpiext extension.  This extension now understands
   hyperthreads; the output format of it has changed a bit to reflect
   this new information.
 * Bunches of minor changes around the code base to update names/types
   from maffinity/paffinity-based names to hwloc-based names.
 * Add some helper functions into the hwloc base, mainly having to do
   with the fact that we have the hwloc data reporting ''all''
   topology information, but sometimes you really only want the
   (online | available) data.

This commit was SVN r26391.
2012-05-07 14:52:54 +00:00
Ralph Castain
b2f77bf08f Extend the iof by adding two new components to support map-reduce IO chaining. Add a mapreduce tool for running such applications.
Fix the state machine to support multiple jobs being simultaneously launched as this is not only required for mapreduce, but can happen under comm-spawn applications as well.

This commit was SVN r26380.
2012-05-02 21:00:22 +00:00
Ralph Castain
c5da4f24d7 Fix stupid singletons - get the pidmap message correct
This commit was SVN r26378.
2012-05-02 17:48:02 +00:00
Ralph Castain
289f9f41ec From long-term discussions, have the daemons use the node_t and proc_t structs and arrays instead of the pidmap and nidmap arrays. Sets the stage for future work.
This commit was SVN r26359.
2012-04-29 00:10:01 +00:00
Ralph Castain
4d16790836 Fix collectives for jobs running across partial allocations
This commit was SVN r26267.
2012-04-13 00:38:47 +00:00
Ralph Castain
d3dfba3872 Fix the scenario where an MPI error handler causes a proc to exit after finalize, but with non-zero status to indicate an error occurred.
This commit was SVN r26265.
2012-04-11 02:23:46 +00:00
Ralph Castain
14d5525fb1 Some minor cleanups. Get singletons working. Cleanup abort handling so it gets properly identified.
This commit was SVN r26261.
2012-04-10 19:08:54 +00:00
Ralph Castain
bd8b4f7f1e Sorry for mid-day commit, but I had promised on the call to do this upon my return.
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.
2012-04-06 14:23:13 +00:00
Ralph Castain
ca3ff58c76 Ensure we get a non-zero exit status when we can't find the specified fork agent. Output a better error message, and ensure we don't multiply report the problem.
This commit was SVN r26191.
2012-03-24 00:49:38 +00:00
Ralph Castain
b3aabf1565 Cleanup the --without-hwloc build. Thanks to Paul Hargrove for reporting it broken.
This commit was SVN r25931.
2012-02-15 11:08:57 +00:00
Ralph Castain
91977444af Silence warnings
This commit was SVN r25929.
2012-02-15 03:42:27 +00:00
Ralph Castain
9b59d8de6f This is actually a much smaller commit than it appears at first glance - it just touches a lot of files. The --without-rte-support configuration option has never really been implemented completely. The option caused various objects not to be defined and conditionally compiled some base functions, but did nothing to prevent build of the component libraries. Unfortunately, since many of those components use objects covered by the option, it caused builds to break if those components were allowed to build.
Brian dealt with this in the past by creating platform files and using "no-build" to block the components. This was clunky, but acceptable when only one organization was using that option. However, that number has now expanded to at least two more locations.

Accordingly, make --without-rte-support actually work by adding appropriate configury to prevent components from building when they shouldn't. While doing so, remove two frameworks (db and rmcast) that are no longer used as ORCM comes to a close (besides, they belonged in ORCM now anyway). Do some minor cleanups along the way.

This commit was SVN r25497.
2011-11-22 21:24:35 +00:00
Ralph Castain
6310361532 At long last, the fabled revision to the affinity system has arrived. A more detailed explanation of how this all works will be presented here:
https://svn.open-mpi.org/trac/ompi/wiki/ProcessPlacement

The wiki page is incomplete at the moment, but I hope to complete it over the next few days. I will provide updates on the devel list. As the wiki page states, the default and most commonly used options remain unchanged (except as noted below). New, esoteric and complex options have been added, but unless you are a true masochist, you are unlikely to use many of them beyond perhaps an initial curiosity-motivated experimentation.

In a nutshell, this commit revamps the map/rank/bind procedure to take into account topology info on the compute nodes. I have, for the most part, preserved the default behaviors, with three notable exceptions:

1. I have at long last bowed my head in submission to the system admin's of managed clusters. For years, they have complained about our default of allowing users to oversubscribe nodes - i.e., to run more processes on a node than allocated slots. Accordingly, I have modified the default behavior: if you are running off of hostfile/dash-host allocated nodes, then the default is to allow oversubscription. If you are running off of RM-allocated nodes, then the default is to NOT allow oversubscription. Flags to override these behaviors are provided, so this only affects the default behavior.

2. both cpus/rank and stride have been removed. The latter was demanded by those who didn't understand the purpose behind it - and I agreed as the users who requested it are no longer using it. The former was removed temporarily pending implementation.

3. vm launch is now the sole method for starting OMPI. It was just too darned hard to maintain multiple launch procedures - maybe someday, provided someone can demonstrate a reason to do so.

As Jeff stated, it is impossible to fully test a change of this size. I have tested it on Linux and Mac, covering all the default and simple options, singletons, and comm_spawn. That said, I'm sure others will find problems, so I'll be watching MTT results until this stabilizes.

This commit was SVN r25476.
2011-11-15 03:40:11 +00:00
Ralph Castain
12a589130a Add some debug
This commit was SVN r25395.
2011-10-29 15:07:58 +00:00
Ralph Castain
84713d5a84 Fix singletons again - must have been broken for a very long time, which only shows how little anyone cares about this capability.
This commit was SVN r25332.
2011-10-19 20:19:08 +00:00
Ralph Castain
054c485dcf Cleanup a race condition and an unreliable method that caused us to not properly handle procs that trapped sigterm for cleanup purposes while ORTE was trying to kill them. Thanks to Rick Payne and Ian Wells of Cisco for spending weeks chasing this down.
Fix a termination issue that caused procs local to mpirun to not be killed if they weren't calling into the library. Thanks to Terry Dontje for spending countless hours chasing his tail on this one! :-(

This commit was SVN r25285.
2011-10-14 15:39:54 +00:00
Ralph Castain
ca7638553f Remove stale code
This commit was SVN r25133.
2011-09-12 23:00:41 +00:00
Ralph Castain
92c7372e20 Per the RFC from Jeff, move hwloc from opal/mca/common to its own static framework ala libevent. Have ORTE daemons collect the topology info at startup and, if --enable-hwloc-xml is set, send that info back to the HNP for later use. The HNP only retains unique topology "templates" to reduce memory footprint. Have the daemon include the local topology info in the nidmap buffer sent to each app so the apps don't all hammer the local system to discover it for themselves.
Remove the sysinfo framework as hwloc replaces that functionality.

This commit was SVN r25124.
2011-09-11 19:02:24 +00:00
Wesley Bland
4e7ff0bd5e By popular demand the epoch code is now disabled by default.
To enable the epochs and the resilient orte code, use the configure flag:

--enable-resilient-orte

This will define both:

ORTE_ENABLE_EPOCH
ORTE_RESIL_ORTE

This commit was SVN r25093.
2011-08-26 22:16:14 +00:00
Ralph Castain
1c08a4006c Refactor some code to remove a few API handles from errmgr. Reviewed/tested by Wes.
This commit was SVN r25064.
2011-08-18 16:24:45 +00:00
Wesley Bland
09274cd047 Make sure that the epoch is initialized everywhere so we don't get weird output
during valgrind. This shouldn't have caused any problems with any actual
execution. Just extra warnings in valgrind.

This commit was SVN r25015.
2011-08-08 15:11:55 +00:00
Ralph Castain
8014e3429e Don't double-count procs as they are launched
This commit was SVN r25011.
2011-08-08 06:05:23 +00:00
Ralph Castain
4083dc617f Fix computation of number of required files and file descriptors - it only depends on the total number of local procs, not on the number of procs in the entire job!
This commit was SVN r25008.
2011-08-08 04:09:40 +00:00
Ralph Castain
8b3c562b84 Adjust verbosity levels to make it easier to debug at scale
This commit was SVN r25006.
2011-08-07 21:14:21 +00:00
Ralph Castain
d603c79ab4 Fix the FAILED_TO_START scenario so orted doesn't segfault
This commit was SVN r25002.
2011-08-05 20:29:50 +00:00
Ralph Castain
42b125ef35 Move the debug so it more accurately reports
This commit was SVN r24961.
2011-07-29 20:48:46 +00:00
Ralph Castain
6c879f87fb Add a new param "orte_remote_tmpdir_base" for those situations where the compute nodes require a different session directory head than the head node.
This commit was SVN r24956.
2011-07-27 19:37:17 +00:00
Eugene Loh
921852e1e5 Clean up the computations of num_procs_alive. Do some code
refactoring to improve readability and to compute num_procs_alive
correctly and to remove the use of loop iteration variables for
two loops nested one inside another (causing MPI_Comm_spawn_multiple
to fail).

This commit was SVN r24903.
2011-07-14 20:10:48 +00:00
Ralph Castain
8d1b31b887 Don't know how we got away with this for so long, but we really shouldn't be referencing pointer array objects directly.
Also, fix an error in mpirx debugger module - the pointer array object is the pointer to the object itself, not the object "super" like in an opal_list.

This commit was SVN r24894.
2011-07-13 20:11:14 +00:00
Ralph Castain
05f4926bfe Remove some remaining cruft re regular expressions - caused the trunk to fail if regex wasn't being used
This commit was SVN r24861.
2011-07-08 06:42:12 +00:00
Ralph Castain
1ee7c39982 Fix some major bit-rot on scalable launch. If static ports are provided, then daemons can connect back to the HNP via the routed connection tree instead of doing so directly. In order to do that at scale, the node list must be passed as a regular expression - otherwise, the orted command line gets too long.
Over the course of time, usage of static ports got corrupted in several places, the "parent" info got incorrectly reset, etc. So correct all that and get the regex-based wireup going again.

Also, don't pass node lists if static ports aren't enabled - they are of no value to the orted and just create the possibility of overly-long cmd lines.

This commit was SVN r24860.
2011-07-07 18:54:30 +00:00
Ralph Castain
8ac35a8496 Fully enable the monitoring of memory usage and automatic termination of memory hogs when limits are reached. Improve the efficiency of the sensor system so we don't multiply sample the resource usage if multiple modules are active. Ensure we output the proc error summary when we abnormally terminate.
This commit was SVN r24843.
2011-06-30 14:11:56 +00:00
Ralph Castain
c449871ade Add an mca param to set the "fork agent" - i.e., a program to be run when forking off a process (e.g., valgrind). While you could specify this by "mpirun -n N fork_agent ./my_app", not everyone launches procs with ORTE from mpirun.
Provide the ability to store recent stat histories using the ring_buffer class

This commit was SVN r24842.
2011-06-30 03:12:38 +00:00
Wesley Bland
84be81df95 Standardize the initialization of the EPOCH's.
Everyone will be starting at MIN anyway (until we implement restart of course)
so there's no reason to set the epoch to INVALID and then immediately reset them
to MIN. This way there's less room to make mistakes later.

This commit was SVN r24829.
2011-06-28 14:20:33 +00:00
Wesley Bland
e1ba09ad51 Add a resilience to ORTE. Allows the runtime to continue after a process (or
ORTED) failure. Note that more work will be necessary to allow the MPI layer to
take advantage of this.

Per RFC:
http://www.open-mpi.org/community/lists/devel/2011/06/9299.php

This commit was SVN r24815.
2011-06-23 20:38:02 +00:00
Samuel Gutierrez
81f38b258a commit of new shared memory backing facility framework (shmem) and its components.
This commit was SVN r24795.
2011-06-21 15:41:57 +00:00
Josh Hursey
0eb3b3b7b0 Fix missing functionality in MPI_Abort so that the group of peers defined by the communicator that should be aborted with this process are requested from the runtime before the local process exits.
Per RFC:
  http://www.open-mpi.org/community/lists/devel/2011/06/9335.php

This commit was SVN r24775.
2011-06-15 13:10:13 +00:00
George Bosilca
454519842e Report bindings if requested.
This commit was SVN r24743.
2011-06-02 17:17:10 +00:00
Ralph Castain
661f508e62 Fix typo
This commit was SVN r24723.
2011-05-22 00:20:42 +00:00
Ralph Castain
b2331113a5 Add some debug
This commit was SVN r24722.
2011-05-21 21:09:47 +00:00
Ralph Castain
1b5ca323c6 Always followup with sigkill when killing local procs as procs can trap sigterm and get stuck
This commit was SVN r24719.
2011-05-20 22:40:10 +00:00
Ralph Castain
b03e4481a3 Plug a couple of additional places in case orte_iof is not opened
This commit was SVN r24716.
2011-05-20 13:42:53 +00:00
Ralph Castain
b0f47e6f59 Allow orte_iof to not be opened
This commit was SVN r24711.
2011-05-19 21:26:30 +00:00
Ralph Castain
9988b97b97 Extend/update how we handle process stats. Add the ability to collect node-level stats separate from the process stats. Update the process stat memory fields to report in MBytes instead of KBytes as I can't find any process that runs in KBytes nowadays.
Rename the memusage sensor plugin to "resusage" as it will soon be updated to include full process stat monitoring.

Extend the heartbeat sensor to report node and process stats in the heartbeat.

Store the process and node stats in their respective orte_xxx_t object.

This commit was SVN r24629.
2011-04-21 22:55:45 +00:00
Ralph Castain
3a28556472 Expand our handling of non-zero exit status. If a process exits with non-zero status, pass that info along to the user in case it means something to them, even if the process also exited without calling MPI_Finalize. If the process calls MPI_Abort, that trumps the exit status question.
Provide a new MCA param that allows the user to direct that we abort the job once a process exits with non-zero status. No recovery is allowed in such cases to avoid trying to restart a process that has already exited MPI.

This commit was SVN r24614.
2011-04-14 15:04:21 +00:00
Ralph Castain
51cf0a16c3 Some minor cleanups to support VM and CM operations
This commit was SVN r24408.
2011-02-16 23:03:08 +00:00