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Граф коммитов

23 Коммитов

Автор SHA1 Сообщение Дата
Brian Barrett
e9e4d2a4bc Handle asprintf errors with opal_asprintf wrapper
The Open MPI code base assumed that asprintf always behaved like
the FreeBSD variant, where ptr is set to NULL on error.  However,
the C standard (and Linux) only guarantee that the return code will
be -1 on error and leave ptr undefined.  Rather than fix all the
usage in the code, we use opal_asprintf() wrapper instead, which
guarantees the BSD-like behavior of ptr always being set to NULL.
In addition to being correct, this will fix many, many warnings
in the Open MPI code base.

Signed-off-by: Brian Barrett <bbarrett@amazon.com>
2018-10-08 16:43:53 -07:00
George Bosilca
e57834aaaa
Point to the corect MPI object.
Store the pointer to the object handle and not the pointer to the
pointer.
We should not assert(0) in the code !

Signed-off-by: George Bosilca <bosilca@icl.utk.edu>
2017-11-03 01:20:34 -04:00
Nathan Hjelm
2060fcf8bb mca/base: use the project name when registering pvars
References #3918. Close when applied to v2.0.x, v2.x, and v3.0.x.

Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
2017-07-17 15:57:50 -05:00
Mark Allen
552216f9ba scripted symbol name change (ompi_ prefix)
Passed the below set of symbols into a script that added ompi_ to them all.

Note that if processing a symbol named "foo" the script turns
    foo  into  ompi_foo
but doesn't turn
    foobar  into  ompi_foobar

But beyond that the script is blind to C syntax, so it hits strings and
comments etc as well as vars/functions.

    coll_base_comm_get_reqs
    comm_allgather_pml
    comm_allreduce_pml
    comm_bcast_pml
    fcoll_base_coll_allgather_array
    fcoll_base_coll_allgatherv_array
    fcoll_base_coll_bcast_array
    fcoll_base_coll_gather_array
    fcoll_base_coll_gatherv_array
    fcoll_base_coll_scatterv_array
    fcoll_base_sort_iovec
    mpit_big_lock
    mpit_init_count
    mpit_lock
    mpit_unlock
    netpatterns_base_err
    netpatterns_base_verbose
    netpatterns_cleanup_narray_knomial_tree
    netpatterns_cleanup_recursive_doubling_tree_node
    netpatterns_cleanup_recursive_knomial_allgather_tree_node
    netpatterns_cleanup_recursive_knomial_tree_node
    netpatterns_init
    netpatterns_register_mca_params
    netpatterns_setup_multinomial_tree
    netpatterns_setup_narray_knomial_tree
    netpatterns_setup_narray_tree
    netpatterns_setup_narray_tree_contigous_ranks
    netpatterns_setup_recursive_doubling_n_tree_node
    netpatterns_setup_recursive_doubling_tree_node
    netpatterns_setup_recursive_knomial_allgather_tree_node
    netpatterns_setup_recursive_knomial_tree_node
    pml_v_output_close
    pml_v_output_open
    intercept_extra_state_t
    odls_base_default_wait_local_proc
    _event_debug_mode_on
    _evthread_cond_fns
    _evthread_id_fn
    _evthread_lock_debugging_enabled
    _evthread_lock_fns
    cmd_line_option_t
    cmd_line_param_t
    crs_base_self_checkpoint_fn
    crs_base_self_continue_fn
    crs_base_self_restart_fn
    event_enable_debug_output
    event_global_current_base_
    event_module_include
    eventops
    sync_wait_mt
    trigger_user_inc_callback
    var_type_names
    var_type_sizes

Signed-off-by: Mark Allen <markalle@us.ibm.com>
2017-07-11 02:13:23 -04:00
bosilca
d55b666834 Topic/monitoring (#3109)
Add a monitoring PML, OSC and IO. They track all data exchanges between processes,
with capability to include or exclude collective traffic. The monitoring infrastructure is
driven using MPI_T, and can be tuned of and on any time o any communicators/files/windows.
Documentations and examples have been added, as well as a shared library that can be
used with LD_PRELOAD and that allows the monitoring of any application.

Signed-off-by: George Bosilca <bosilca@icl.utk.edu>
Signed-off-by: Clement Foyer <clement.foyer@inria.fr>


* add ability to querry pml monitorinting results with MPI Tools interface
using performance variables "pml_monitoring_messages_count" and
"pml_monitoring_messages_size"

Signed-off-by: George Bosilca <bosilca@icl.utk.edu>

* Fix a convertion problem and add a comment about the lack of component
retain in the new component infrastructure.

Signed-off-by: George Bosilca <bosilca@icl.utk.edu>

* Allow the pvar to be written by invoking the associated callback.

Signed-off-by: George Bosilca <bosilca@icl.utk.edu>

* Various fixes for the monitoring.
Allocate all counting arrays in a single allocation
Don't delay the initialization (do it at the first add_proc as we
know the number of processes in MPI_COMM_WORLD)

Add a choice: with or without MPI_T (default).

Signed-off-by: George Bosilca <bosilca@icl.utk.edu>

* Cleanup for the monitoring module.
Fixed few bugs, and reshape the operations to prepare for
global or communicator-based monitoring. Start integrating
support for MPI_T as well as MCA monitoring.

Signed-off-by: George Bosilca <bosilca@icl.utk.edu>

* Adding documentation about how to use pml_monitoring component.

Document present the use with and without MPI_T.
May not reflect exactly how it works right now, but should reflects
how it should work in the end.

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Change rank into MPI_COMM_WORLD and size(MPI_COMM_WORLD) to global variables in pml_monitoring.c.
Change mca_pml_monitoring_flush() signature so we don't need the size and rank parameters.

Signed-off-by: George Bosilca <bosilca@icl.utk.edu>

* Improve monitoring support (including integration with MPI_T)

Use mca_pml_monitoring_enable to check status state. Set mca_pml_monitoring_current_filename iif parameter is set
Allow 3 modes for pml_monitoring_enable_output: - 1 : stdout; - 2 : stderr; - 3 : filename
Fix test : 1 for differenciated messages, >1 for not differenciated. Fix output.
Add documentation for pml_monitoring_enable_output parameter. Remove useless parameter in example
Set filename only if using mpi tools
Adding missing parameters for fprintf in monitoring_flush (for output in std's cases)
Fix expected output/results for example header
Fix exemple when using MPI_Tools : a null-pointer can't be passed directly. It needs to be a pointer to a null-pointer
Base whether to output or not on message count, in order to print something if only empty messages are exchanged
Add a new example on how to access performance variables from within the code
Allocate arrays regarding value returned by binding

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Add overhead benchmark, with script to use data and create graphs out of the results
Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Fix segfault error at end when not loading pml
Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Start create common monitoring module. Factorise version numbering
Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Fix microbenchmarks script
Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Improve readability of code

NULL can't be passed as a PVAR parameter value. It must be a pointer to NULL or an empty string.

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Add osc monitoring component

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Add error checking if running out of memory in osc_monitoring

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Resolve brutal segfault when double freeing filename
Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Moving to ompi/mca/common the proper parts of the monitoring system
Using common functions instead of pml specific one. Removing pml ones.

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Add calls to record monitored data from osc. Use common function to translate ranks.

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Fix test_overhead benchmark script distribution

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Fix linking library with mca/common

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Add passive operations in monitoring_test

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Fix from rank calculation. Add more detailed error messages

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Fix alignments. Fix common_monitoring_get_world_rank function. Remove useless trailing new lines

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Fix osc_monitoring mget_message_count function call

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Change common_monitoring function names to respect the naming convention. Move to common_finalize the common parts of finalization. Add some comments.

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Add monitoring common output system

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Add error message when trying to flush to a file, and open fails. Remove erroneous info message when flushing wereas the monitoring is already disabled.

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Consistent output file name (with and without MPI_T).

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Always output to a file when flushing at pvar_stop(flush).

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Update the monitoring documentation.
Complete informations from HowTo. Fix a few mistake and typos.

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Use the world_rank for printf's.
Fix name generation for output files when using MPI_T. Minor changes in benchmarks starting script

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Clean potential previous runs, but keep the results at the end in order to potentially reprocess the data. Add comments.

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Add security check for unique initialization for osc monitoring

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Clean the amout of symbols available outside mca/common/monitoring

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Remove use of __sync_* built-ins. Use opal_atomic_* instead.

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Allocate the hashtable on common/monitoring component initialization. Define symbols to set the values for error/warning/info verbose output. Use opal_atomic instead of built-in function in osc/monitoring template initialization.

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Deleting now useless file : moved to common/monitoring

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Add histogram ditribution of message sizes

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Add histogram array of 2-based log of message sizes. Use simple call to reset/allocate arrays in common_monitoring.c

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Add informations in dumping file. Separate per category (pt2pt/osc/coll (to come)) monitored data

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Add coll component for collectives communications monitoring

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Fix warning messages : use c_name as the magic id is not always defined. Moreover, there was a % missing. Add call to release underlying modules. Add debug info messages. Add warning which may lead to further analysis.

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Fix log10_2 constant initialization. Fix index calculation for histogram array.

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Add debug info messages to follow more easily initialization steps.

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Group all the var/pvar definitions to common_monitoring. Separate initial filename from the current on, to ease its lifetime management. Add verifications to ensure common is initialized once only. Move state variable management to common_monitoring.
monitoring_filter only indicates if filtering is activated.
Fix out of range access in histogram.
List is not used with the struct mca_monitoring_coll_data_t, so heritate only from opal_object_t.
Remove useless dead code.

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Fix invalid memory allocation. Initialize initial_filename to empty string to avoid invalid read in mca_base_var_register.

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Don't install the test scripts.

Signed-off-by: George Bosilca <bosilca@icl.utk.edu>
Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Fix missing procs in hashtable. Cache coll monitoring data.
    * Add MCA_PML_BASE_FLAG_REQUIRE_WORLD flag to the PML layer.
    * Cache monitoring data relative to collectives operations on creation.
    * Remove double caching.
    * Use same proc name definition for hash table when inserting and
      when retrieving.

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Use intermediate variable to avoid invalid write while retrieving ranks in hashtable.

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Add missing release of the last element in flush_all. Add release of the hashtable in finalize.

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Use a linked list instead of a hashtable to keep tracks of communicator data. Add release of the structure at finalize time.

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Set world_rank from hashtable only if found

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Use predefined symbol from opal system to print int

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Move collective monitoring data to a hashtable. Add pvar to access the monitoring_coll_data. Move functions header to a private file only to be used in ompi/mca/common/monitoring

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Fix pvar registration. Use OMPI_ERROR isntead of -1 as returned error value. Fix releasing of coll_data_t objects. Affect value only if data is found in the hashtable.

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Add automated check (with MPI_Tools) of monitoring.

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Fix procs list caching in common_monitoring_coll_data_t

    * Fix monitoring_coll_data type definition.
    * Use size(COMM_WORLD)-1 to determine max number of digits.

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Add linking to Fortran applications for LD_PRELOAD usage of monitoring_prof

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Add PVAR's handles. Clean up code (visibility, add comments...). Start updating the documentation

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Fix coll operations monitoring. Update check_monitoring accordingly to the added pvar. Fix monitoring array allocation.

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Documentation update.
Update and then move the latex and README documentation to a more logical place

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Aggregate monitoring COLL data to the generated matrix. Update documentation accordingly.

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Fix monitoring_prof (bad variable.vector used, and wrong array in PMPI_Gather).

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Add reduce_scatter and reduce_scatter_block monitoring. Reduce memory footprint of monitoring_prof. Unify OSC related outputs.

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Add the use of a machine file for overhead benchmark

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Check for out-of-bound write in histogram

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Fix common_monitoring_cache object init for MPI_COMM_WORLD

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Add RDMA benchmarks to test_overhead
Add error file output. Add MPI_Put and MPI_Get results analysis. Add overhead computation for complete sending (pingpong / 2).

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Add computation of average and median of overheads. Add comments and copyrigths to the test_overhead script

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Add technical documentation

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Adapt to the new definition of communicators

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Update expected output in test/monitoring/monitoring_test.c

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Add dumping histogram in edge case

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Adding a reduce(pml_monitoring_messages_count, MPI_MAX) example

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Add consistency in header inclusion.
Include ompi/mpi/fortran/mpif-h/bindings.h only if needed.
Add sanity check before emptying hashtable.
Fix typos in documentation.

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* misc monitoring fixes

* test/monitoring: fix test when weak symbols are not available
* monitoring: fix a typo and add a missing file in Makefile.am
and have monitoring_common.h and monitoring_common_coll.h included in the distro
* test/monitoring: cleanup all tests and make distclean a happy panda
* test/monitoring: use gettimeofday() if clock_gettime() is unavailable
* monitoring: silence misc warnings (#3)

Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>

* Cleanups.

Signed-off-by: George Bosilca <bosilca@icl.utk.edu>

* Changing int64_t to size_t.
Keep the size_t used accross all monitoring components.
Adapt the documentation.
Remove useless MPI_Request and MPI_Status from monitoring_test.c.

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Add parameter for RMA test case

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Clean the maximum bound computation for proc list dump.
Use ptrdiff_t instead of OPAL_PTRDIFF_TYPE to reflect the changes from commit fa5cd0dbe5.

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Add communicator-specific monitored collective data reset

Signed-off-by: Clement Foyer <clement.foyer@inria.fr>

* Add monitoring scripts to the 'make dist'
Also install them in the build and the install directories.

Signed-off-by: George Bosilca <bosilca@icl.utk.edu>
2017-06-26 18:21:39 +02:00
Nysal Jan K.A
25ba507ada mpit: Fix MPI_T_pvar_get_index
MPI_T_pvar_get_index was returning an incorrect index. The index
was never set correctly while registering the performance variables.
Additionally fix a missing case in the mca_base_var_type_t to MPI
datatype conversion. This type is currently used for control variables
registered by mxm, fca and hcoll components.

Signed-off-by: Nysal Jan K.A <jnysal@in.ibm.com>
2016-12-22 12:30:21 +05:30
George Bosilca
6c54e63ecb Allow the PVARs to be written as requested by the MPI standard. 2015-10-31 17:13:35 -04:00
George Bosilca
5224a7ce4d Allow the pvar to be written by invoking the associated callback.
Use a PVAR to generate the monitoring dump of the information into a
file.

Use the PVAR to instruct the PML monitoring when to do the dump.
2015-10-31 17:13:35 -04:00
George Bosilca
c03b3b135c Don't allow multiple pvar with the same pvar_index.
Fix Cisco copyright.
2015-07-25 15:57:50 -04:00
Guillaume Papauré
98b6d65385 avoid use of non initialized variable 2015-07-25 15:29:32 -04:00
Nathan Hjelm
4552afff06 Fix definition of MPI_T_pvar_get_index
The definition of MPI_T_pvar_get_index was incorrect. This commit
fixes the definition and adds a missing return code.

Signed-off-by: Nathan Hjelm <hjelmn@me.com>
2015-06-24 17:31:26 -06:00
Ralph Castain
869041f770 Purge whitespace from the repo 2015-06-23 20:59:57 -07:00
Nathan Hjelm
cea735b3c3 mca/base: fix coverity issues and enable project name in MCA groups
CID 1047278 Unchecked return value

Updated check for mca_base_var_generate_full_name4 to match other
checks. Logically equivalent to the old check. Not a bug.

CID 1196685 Dereference null return

Added check for NULL when looking up the original variable for a
synonym.

CID 1269705 Logically dead code

Removed code that set the project to NULL. Code was intended to be
removed with an earlier commit that added the project name into the
component structure. Added code to actually support searching for a
group with a wildcard ('*').

CID 1292739 Dereference null return
CID 1269819 Dereference null return

Removed unnecessary string duplication and strchr.

CID 1287030 Logically dead code

Refactored fixup_files code and confirmed that the code in question is
not reachable. Removed the dead code.

CID 1292740 Use of untrusted string

Use strdup to silence coverity warning.

CID 1294413 Free of address-of expression

Reset mitem to NULL after the OPAL_LIST_FOREACH loop to ensure we
never try to free the list sentinel.

CID 1294414 Unchecked return value

Use (void) to indicate we do not care about the return code in this
instance.

CID 1294415 Resource leak

On error free all the base pointer.

Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
2015-05-21 13:33:31 -06:00
Nathan Hjelm
9cd955badf opal: fix multiple bugs in MCA and opal
This commit fixes the following bugs:

 - opal_output_finalize did not properly set internal state. This
   caused problems when calling the sequence opal_output_init (),
   opal_output_finalize (), opal_output_init ().

 - opal_info support called mca_base_open () but never called the
   matching mca_base_close (). mca_base_open () and mca_base_close ()
   have been updated to use a open count instead of an open flag to
   allow mca_base_open to be called through multiple paths (as may be
   the case when MPI_T is in use).

 - orte_info support did not register opal variables. This can cause
   orte-info to not return opal variables.

 - opal_info, orte_info, and ompi_info support have been updated to
   use a register count.

 - When opening the dl framework the reference count was added to
   ensure the framework stuck around. The framework being closed
   prematurely was a bug in the MCA base that has since been
   corrected. The increment (and associated decrement) have been
   removed.

 - dl/dlopen did not set the value of
   mca_dl_dlopen_component.filename_suffixes_mca_storage on each call
   to register. Instead the value was set in the component
   structure. This caused the value to be lost when re-loading the
   component. Fixed by setting the default value in register.

 - Reset shmem framework state on close to avoid returning a stale
   component after reloading opal/shmem.

 - MCA base parameters were not properly deregistered when the MCA
   base was closed.

This commit may fix #374.

Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
2015-04-07 19:13:20 -06:00
Jeff Squyres
f8e334357d mca_base_pvar.c: protect removal from list
Only remove it from the list if it is actually on the list.

This was CID 1269758.
2015-02-12 13:41:29 -08:00
Ralph Castain
552c9ca5a0 George did the work and deserves all the credit for it. Ralph did the merge, and deserves whatever blame results from errors in it :-)
WHAT:    Open our low-level communication infrastructure by moving all necessary components (btl/rcache/allocator/mpool) down in OPAL

All the components required for inter-process communications are currently deeply integrated in the OMPI layer. Several groups/institutions have express interest in having a more generic communication infrastructure, without all the OMPI layer dependencies.  This communication layer should be made available at a different software level, available to all layers in the Open MPI software stack. As an example, our ORTE layer could replace the current OOB and instead use the BTL directly, gaining access to more reactive network interfaces than TCP.  Similarly, external software libraries could take advantage of our highly optimized AM (active message) communication layer for their own purpose.  UTK with support from Sandia, developped a version of Open MPI where the entire communication infrastucture has been moved down to OPAL (btl/rcache/allocator/mpool). Most of the moved components have been updated to match the new schema, with few exceptions (mainly BTLs where I have no way of compiling/testing them). Thus, the completion of this RFC is tied to being able to completing this move for all BTLs. For this we need help from the rest of the Open MPI community, especially those supporting some of the BTLs.  A non-exhaustive list of BTLs that qualify here is: mx, portals4, scif, udapl, ugni, usnic.

This commit was SVN r32317.
2014-07-26 00:47:28 +00:00
Ralph Castain
1a53d541ab Cleanup memory leak
cmr=v1.8.2:reviewer=hjelmn

This commit was SVN r32051.
2014-06-19 18:56:57 +00:00
Nathan Hjelm
a28012b29d Fix MPI_T issues identified by friendly users.
Several fixes:

 - I was allowing an MPI_T_cvar_handle to be created for an invalid
   variable. Fixed this by checking if the variable is valid in
   mca_base_var_get.

 - Use a better error code when the caller tries to create an unbound
   pvar handle for a bound variable.

 - Return the verbosity level in MPI_T_cvar_get_info.

cmr=v1.8.2:reviewer=jsquyres

This commit was SVN r31576.
2014-04-30 22:10:30 +00:00
Nathan Hjelm
f7428fb6a9 Small fixes for the MCA variable interface.
- Make a copy of enumerator data for default enumerators. This will allow
   the caller to free their data once the enumerator has been created. This
   is a change from just referencing the values array.

 - Make mca_base_pvar_notify check if the pvar is valid before calling the
   notify callback. This fixes a segmentation fault when destroying handles
   after MPI_Finalize().

cmr=v1.7.4:ticket=trac:3861

This commit was SVN r29512.

The following Trac tickets were found above:
  Ticket 3861 --> https://svn.open-mpi.org/trac/ompi/ticket/3861
2013-10-24 19:27:06 +00:00
Nathan Hjelm
d34a4300b8 Fix various bugs in mca_base_pvar.
Fixes:

 - Segmentation fault when using watermark variables.

 - Segmentation fault when using a handle bound to a no longer valid
   performance variable.

 - Incorrect return codes from MPI_T_pvar_* functions.

cmr=v1.7.4:reviewer=jsquyres

This commit was SVN r29481.
2013-10-23 15:47:15 +00:00
Nathan Hjelm
77a41e1ca9 ompi_info: mark the variables from disabled components as disabled in
the output of ompi_info.

A variable is disabled if its component will never be selected due to
a component selection parameter (eg. -mca btl self). The old behavior
of ompi_info was to not print these parameters at all. Now we print the
parameters. After some discussion with George it was decided that there
needed to be some way to see what parameters will not be used. This was
the comprimise.

This commit also fixes a bug and a typo in the pvar sytem. The enum_count
value in mca_base_pvar_dump was being used without being set. The full_name
in mca_base_pvar_t was not being used.

cmr=v1.7.3:ticket=trac:3734

This commit was SVN r29078.

The following Trac tickets were found above:
  Ticket 3734 --> https://svn.open-mpi.org/trac/ompi/ticket/3734
2013-08-28 16:03:23 +00:00
Nathan Hjelm
2da64eb719 Fix compilation of the MPI tools information interface when profiling
is enabled and fix a bug in the handling of watermark performance
variables.

cmr=v1.7.3:ticket=trac:3725:reviewer=jsquyres

This commit was SVN r29068.

The following Trac tickets were found above:
  Ticket 3725 --> https://svn.open-mpi.org/trac/ompi/ticket/3725
2013-08-27 18:19:18 +00:00
Nathan Hjelm
d446675526 MCA: Per-RFC, add support for performance variables
This commit adds an API for registering and querying performance
variables (mca_base_pvar) in the MCA base. The existing MCA variable
system API has been updated to reflect the new API: MCA variable
groups have performance variables, and new types have been added (double,
unsigned long long) to reflect what is required by the MPI_T
interface. Additionally, the MCA variable group code has been split
into its own set of files: mca_base_var_group.[ch].

Details of the new API can be found in doxygen comments in the header:
mca_base_pvar.h.

Other changes to the variable system:

 - Use an opal_hash_table to speed up variable/group lookup.

 - Clean up code associated with MCA variable types.

 - Registered performance variables are printed by ompi_info -a. In the
   future an option should be added to control this behavior.

Changes to OMPI:

 - Added full support for the MPI_T performance variable interface.

This commit was SVN r28800.
2013-07-16 16:02:13 +00:00