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Jonathan R. Madsen e7d3125459 restructure libomnitrace + tasking and omnitrace-causal updates (#237)
* restructured libomnitrace

- this is necessary to incorporate some of the binary analysis capabilities into omnitrace exe
- created libomnitrace-core (static)
- created libomnitrace-binary (static)
- created libomnitrace (static)
- omnitrace-avail links to libomnitrace.a
- omnitrace-critical-trace links to libomnitrace.a
- tweaked the testing
  - reduced verbosity on some of MPI tests
  - excluded trace-time-window from tests on Ubuntu 18.04
  - reduced causal e2e iterations
- minor tweak to tasking
  - manually create `PTL::UserTaskQueue` instance instead of relying on `PTL::ThreadPool` to create it

* Update formatting workflow

- source formatting uses ubuntu-22.04
- check-includes doesn't generate false positive for 'include "timemory.hpp"'

* omnitrace-causal --generate-configs

- fix config generation in omnitrace causal
- add test for omnitrace-causal + generating configs

* Fix omnitrace-object-library build

- accidentally included rocm sources in non-rocm builds

* Fix rocm compilation w/o rocprofiler

* update timemory submodule with mpi_get warning messages

* sampling offload file updates

- more verbose messages
- disable offload before stopping

* testing updates

- increase causal e2e iterations to 12
- increase lock_environment verbose to 2 (for sampling offload messages)
- fix return for omnitrace_add_validation_test
2023-02-04 10:59:50 -06:00
Jonathan R. Madsen 9618ddefba Causal profiling (#229)
* Addition of basic structure

* Reworked categories

* More causal integration additions

* Causal implementation

* Update examples

* delete virtual_speedup files

* Update perfetto submodule to v31.0

* Update dyninst submodule

* Update timemory submodule

* ElfUtils build for libdw

* OMNITRACE_LIKELY and OMNITRACE_UNLIKELY

* Update common lib join

* Examples updates for causal profiling

* config updates with causal options

- OMNITRACE_CAUSAL_FIXED_LINE
- OMNITRACE_CAUSAL_FIXED_SPEEDUP
- OMNITRACE_CAUSAL_FILE
- OMNITRACE_CAUSAL_BINARY_SCOPE
- OMNITRACE_CAUSAL_SOURCE_SCOPE
- version info in banner
- support increments in parse_numeric_range
- fix occasional deadlock in first call to get_config

* PTL general task group

* Always include PID in debug/verbose messages

* Add blocking/unblocking gotchas to runtime init bundle

* CausalState

* thread_data updates

- generic component_bundle_cache

* Improve handling of causal in category_region

* components updates

- backtrace_causal component
- backtrace::get_data member func
- decrease ignore_depth in backtrace::sample(int)
- handle "omnitrace_main" in backtrace::filter_and_patch(...)
- tweak internal thread state scope for pthread_mutex_gotcha wrappers

* simplify tracing get_instrumentation_bundles usage

* sampling updates

- include backtrace_causal component
- disable backtrace_metrics if using causal and not using perfetto
- disable backtrace and backtrace_timestamp when using causal
- post_process_causal

* causal updates

- more checks in blocking_gotcha and unblocking_gotcha start/stop
- miscellaneous overhaul of data
- experiment update

* Remove virtual speedup

* libomnitrace code_object

* causal-profiling test

* libomnitrace library.cpp updates

- handle causal profiling
- fini_bundle

* Disable causal profiling by default

* Updated causal code and example

- example: three execution variants: cpu + rng, cpu, rng
- example: three instrumentation variants: none, omni, coz
- fix blocking gotcha credit
- rework perform_experiment_impl
- get_eligible_address_ranges
- compute_eligible_lines
- support fixed lines/speedups/functions
- update selected_entry to support function mode
- fix causal::delay
- experiment updates

* omnitrace_progress / omnitrace_user_progress

- with accompanying omnitrace_annotated_progress / omnitrace_user_annotated_progress

* Update timemory submodule

* CausalMode

- mode indicated whether causal predictions source be at line-level or function-level

* code_object, config, runtime, sampling, thread_data

- code_object: address_range
- code_object: basic::line_info serialize(), name(), hash()
- config updates
- two signals for causal sampling
- thread_data init fixes

* pthread updates

- pthread_create_gotcha processes delays
- pthread_mutex_gotcha does not wrap pthread_join in causal mode

* backtrace_causal update

- dynamic delay period stats

* main wrapper uses basename of argv[0]

* update elfio submodule

* perf support (currently unused)

* Fix experiment JSON serialization

- static_vector.hpp (unused)

* causal executable + config options updates

- omnitrace-causal exe simplifies running multiple causal configs
- changed the causal config option names

* Support both throughput and latency points

* process-causal-json.py script

- will be used later for testing

* stable_vector

* Rework thread_data

* Improve omnitrace-causal exe

- better verbosity handling
- correct diagnosis of status for child process
- execvpe when only one iteration (debugging)

* Update timemory submodule

* exe --version

- omnitrace, omnitrace-avail, and omnitrace-sample all support --version on command-line

* OMNITRACE_INTERNAL_API + OMNITRACE_{LIKELY,UNLIKELY}

* omnitrace-causal cmake format

* omnitrace config update

- OMNITRACE_CAUSAL_FILE_CLOBBER

* custom exception

- wraps STL exception and gets stacktrace during construction

* exit_gotcha supports _Exit

* use global construct_on_init + max threads

- add some safety when exceeding max # of threads

* update code_object binary filter

- exclude dyninst and tbbmalloc library

* containers: c_array, static_vector, stable_vector

- moved utility::c_array to container::c_array
- created static_vector: std::vector bound to std::array
- created stable_vector: vector with stable references

* grow thread_data when new thread created

* causal updates

- data: improve compute_eligible_lines to ignore lambdas
- data: use new thread_data
- delay: use new thread_data
- experiment: properly support latency points
- experiment: support file clobber
- experiment: ensure non-zero experiment time
- progress_point: use new thread_data
- backtrace_causal: use new thread_data

* Update causal-profiling tests

* fix omnitrace-causal backslash escaping

* process-causal-json script

* restructure causal implementation

- update verbose messages for omnitrace-causal diagnose_status
- migrated causal implementation in sampling.cpp to causal/sampling.cpp
- OMNITRACE_USE_CAUSAL does not require OMNITRACE_USE_SAMPLING
- added Mode::Causal
- causal sampling uses same signals as regular sampling
- moved tracing::thread_init to implementation file
- combined tracing::thread_init and tracing::thread_init_sampling
- added causal/components folder
- pthread_create_gotcha::wrapper_config
- omnitrace_preload checks OMNITRACE_USE_CAUSAL
  - updates mode accordingly

* update timemory submodule

* update timemory submodule

* causal example updates

- causal for lulesh

* perf code + utility - helpers

- relocated causal perf code
- placement new when generating unique ptr trait for potentially allocating during sampling
- additions to utility header
- removed previously added helpers.hpp

* update timemory submodule

* Default env variables for omnitrace-causal

- activate OMNITRACE_USE_KOKKOSP, etc.

* update stable_vector and static_vector

- static vector can use atomic for size tracking for thread-safe situations

* update causal example header

- CAUSAL_PROGRESS_NAMED
- use CAUSAL_ prefix for some macros

* Tweak lulesh example

- use CAUSAL_PROGRESS instead of CAUSAL_BEGIN and CAUSAL_END

* omnitrace-sample support for causal mode

- set OMNITRACE_USE_SAMPLING to off when OMNITRACE_MODE=causal

* refactor and cleanup code_object

- scope filter
- fixes to address_range

* overhaul causal data + causal config options

- full support for function and line mode
- support static vector of instruction pointers
- improve line info mapping resolution
- remove thread-locality from miscellanous functions where unnecessary
- causal options for {binary,source,function,fileline} exclusion

* causal experiment, sampling, and backtrace updates

- is_selected + unwind address array
- experiment warning about progress points
- increased buffer size for backtrace_casual sampler
- backtrace_causal only stores IP addresses instead of full unwind info

* category_region updates

- minor refactor
- local_category_region::mark

* Update causal tests

* Bump version to 1.8.0

* omnitrace-causal args + CLOBBER -> RESET

- renamed OMNITRACE_CAUSAL_FILE_CLOBBER to OMNITRACE_CAUSAL_FILE_RESET
- updated omnitrace-causal exe to support recently added configuration options
- other miscellaneous tweaks to data.cpp, experiment.cpp, and sampling.cpp

* Refactor causal and code_object

- code_object.hpp and code_object.cpp moved into binary folder
- causal components namespaced into omnitrace::causal::component
- moved sample_data out of backtrace_causal and into own file
- renamed backtrace_causal to causal::component::backtrace

* preload omnitrace_init + OMNITRACE_DEBUG_MARK

- env OMNITRACE_DEBUG_MARK
- fix omnitrace_init call when LD_PRELOAD-ing omnitrace

* Fix fileline support + line-info output names + experiment log

- line-info log files are prefixed with experiment name
- don't print experiment duration when E2E
- account for fileline scope in analysis

* KokkosP: OMNITRACE_KOKKOSP_NAME_LENGTH_MAX

- config option to limit the name of kokkos tool callbacks
- remove [kokkos] from KokkosP names

* Update causal example

- minor tweaks to decrease probability of overlapping regions in binary

* omnitrace-causal update

- prefix N / Ntot in environment printout

* Miscellaneous updates

- causal::finish_experimenting()
- OMNITRACE_CAUSAL_RANDOM_SEED
- KokkosP causal updates
  - exclude some callbacks, make some callbacks unique, etc.
- address_range::operator+=(address_range)
- combine contiguous ranges in binary/analysis.cpp when file, func, line is same and address range is contiguous
- bfd_line_info reads inline info
- wait for perform_experiment_impl to complete
- causal::delay updates
  - delay::process checks if experiment is active
  - uses threading::get_id()
- experiment scales duration up for larger speedup experiments
- line info samples includes excluded lines
- sampler uses CLOCK_REALTIME
- blocking_gotcha updates
  - is no longer fully static
  - adds audit routine which sets the postblock value to zero if try/timed routine fails
- category::host was added to causal_throughput_categories_t
- pthread_create_gotcha sets new threads local parent delay
  - was using internal value, now uses sequent value

* Causal improvements to KokkosP

* Updates to experiment time scaling

- use stats instead of just max

* binary/link_map.{hpp,cpp}

* update process-causal-json.py

* Folded fileline scope into source scope

* Update documentation

- Add documentation for causal profiling
- Replace 'Omnitrace' with 'OmniTrace' everywhere

* Update causal-helpers.cmake + omnitrace-testing.cmake

- split tests/CMakeLists.txt partially into omnitrace-testing.cmake

* omnitrace/causal.h

- OMNITRACE_CAUSAL_PROGRESS
- OMNITRACE_CAUSAL_PROGRESS_NAMED
- OMNITRACE_CAUSAL_BEGIN
- OMNITRACE_CAUSAL_END

* selected_entry + remove default filters for lambdas and operator()

- selected entry stores range and binary load address

* update process-causal-json.py

* format examples/lulesh/CMakeLists.txt

* causal-helpers find_package(Threads)

* OMNITRACE_KOKKOSP_KERNEL_LOGGER

- was OMNITRACE_KOKKOS_KERNEL_LOGGER

* quiet find of coz-profiler

* Fix rocm_smi exception handling

* Update timemory submodule (binutils)

- fix binutls compile error on some systems
- bump binutils to v2.40

* Fix miscellaneous tests

* OMNITRACE_KOKKOSP_PREFIX

* revert rocm_smi handling

* ElfUtils updates

- default to download version 0.188
- add -Wno-error=null-dereference due to GCC 12 compiler error

* Update causal example

* Remove OMNITRACE_VERBOSE from global workflow envs

* Reliable causal test

* disable compilation of causal perf files

* Remove set_current_selection with unwind stack

* update timemory submodule

* fix for segfault on bionic

- locking in TLS dtor was causing segfault

* remove experiment::is_selected(unwind_stack_t)

* update default init of selected_entry

* Fix for when IP is not offset by load address

* Update CMakeLists.txt

* Miscellaneous updates

- OMNITRACE_WARNING_OR_CI_THROW
- OMNITRACE_REQUIRE
- OMNITRACE_PREFER
- fixed issues with no ASLR
-  added load address variable and ipaddr() func to basic/bfd line info
- removed get_basic() from dwarf_line_info
- TIMEMORY_PREFER -> OMNITRACE_PREFER
- removed previously added binary_address and range variables from selected_entry

* Removed superfluous CausalState

* Additional causal tests (lulesh + kokkos)

* filter, prefer, analysis ASLR handling

- removed default filter on cold functions
- fixed OMNITRACE_PREFER
- fixed analysis ASLR handling

* Tweak line-info output

* Removed some superfluous code

- causal/delay
- causal/selected_entry

* Exclude main.cold in function mode

* Update validate-perfetto-proto.py

- account for occasional http errors

* Add sampling test disabling tmp files

* argparser for process-causal-json

- support validation
- support filtering

* Avoid pthread_{lock,unlock} in sampling offload

- use homemade atomic_mutex/atomic_lock since contention will be low and using pthread tools might trigger our wrappers

* Rename process-causal-json.py

- validate-causal-json.py

* rework omnitrace_add_causal_test

- capable of performing validation
- added validation tests

* Fix kokkosp_begin_deep_copy + causal

* Tweak address range in bfd_line_info::read_pc

* Tweak analysis and data IP handling

- look for gaps

* Disable scaling experiment time by speedup

* Revert change in max threads during CI

* binary updates

- significant overhaul of binary analysis implementation
- removed "basic_line_info" and "bfd_line_info" in lieu of "symbol" class
  - symbol class has basic BFD info + vector of inlines + vector of dwarf info

* Updated causal to use new binary analysis

- Fix symbol.cpp includes

* Updated formatting target

- include *.cmake files

* Updated causal tests

- causal tests should be stable now

* Update timemory and dyninst submodules

- TPLs are stripped + built w/o debug info

* Increase tolerance for causal validation speedups

- higher speedups have more variance (increased to +/- 5 from 3)

* Support causal output for MPI

- i.e. tag with MPI rank

* omnitrace-causal launcher argument

* improve experiment sampling output

* causal data updates

- call compute lines once
- fixed filtered cached binary info
- debugging info when experiment fails to start

* Tweaked causal validation tests

* dwarf_entry ranges

* CI updates

- increase max threads to 64

* Tweak causal E2E validation tests

- more threads
- shorter thread runtime
- more iterations

* Fix shadowed variable

* fix symbol read_bfd last PC calculation

* fix maybe-uninitialized warning

* omnitrace-causal launcher update

- only inject "omnitrace-causal --" once
- throw error if no matches found

* Update causal profiling docs for launcher

* fix address range boundaries
2023-01-24 18:53:23 -06:00
Jonathan R. Madsen 2f16e2ecb1 Optional perfetto annotations (#206)
* Misc tweaks

- C API function print with warning colors
- split region/trace start/stop functions into regions.cpp file

* Config option for disabling perfetto annotations

* Missing checks in roctracer.cpp and sampling.cpp

* Verbose makefile in CI

* run-ci uses -VV

* Fix gcc-7 maybe-uninitialized warning

* Fix push/pop perfetto

- moving perfetto::EventContext was causing errors
2022-11-16 09:48:15 -06:00
Jonathan R. Madsen 642b6b95ca Support external (i.e. user-defined) trace annotations (#195)
* Support external (i.e. user-defined) trace annotations

- tweaked the python examples to be more balanced
- updated the user-api example to conform to user API changes
- moved the get/set for State and ThreadState to state.{hpp,cpp}
- introduced user-provided trace annotations
- added perfetto python category
- moved coverage impl files around
- created enumerations for mapping category enums to category types
- created enumerations for mapping annotation type enums to annotation values
- moved tracing::add_perfetto_annotations to tracing/annotation.hpp
- utility make_index_sequence_range
- libomnitrace-dl: omnitrace_push_category_region
- libomnitrace-dl: omnitrace_pop_category_region
- libomnitrace-user: omnitrace_user_push_annotated_region
- libomnitrace-user: omnitrace_user_pop_annotated_region
- libpyomnitrace: support extra annotations via annotate_trace config value
  - filename
  - line
  - last attempted instr in bytecode (lasti)
  - argcount
  - num local variables
  - stacksize
- omnitrace-python: -a / --annotate-traces option

* tweak ubuntu-focal workflow

* Fix installation of omnitrace-user headers

* ubuntu-focal-codecov workflow update

- Install texinfo

* Update timemory submodule
2022-11-11 07:31:14 -06:00
Jonathan R. Madsen a41a5c155e Fix LD_PRELOAD (#184)
- __libc_start_main in libomnitrace-dl wasn't wrapping bc of -fvisibility=hidden
- fix OMNITRACE_STRIP_TARGET
- omnitrace_reset_preload function in main library
- defer removing libomnitrace from LD_PRELOAD
2022-10-21 17:39:08 -05:00
Jonathan R. Madsen 8f36620e29 Fix deadlocks during initialization (#167)
- More to come in later commit, below is just tidying some stuff up
  - clang-tidy
  - mpi_gotcha quiet about not finding funcs
  - update to new papi config
  - sampling block_samples / unblock_samples
    - disable calling component's sample functions within sampler
  - release doesn't strip library
  - remove HSA and ROCP env variables from modulefile / setup-env
- preliminary support for LD_PRELOAD usage
- default sampling rate is 300 interrupts / second
- fixes various deadlock issues at startup
2022-09-26 07:52:14 -05:00
Jonathan R. Madsen 808ea7dfa7 Rework sampling and colorized logs (#140)
## Overview

This is a significant PR which has 3 very notable characteristics:

1. Omnitrace colorizes most of it's logging
2. Completely reworked the sampling 
  - Samples now record the current instruction pointers instead of strings
    - This _dramatically_ decreases the overhead of taking a sample
  - The collection of metrics during a sample are split out into another component, enabling that data collection to be disabled -- which decreases the sampling overhead even further
  - When both `OMNITRACE_SAMPLING_CPUTIME` and `OMNITRACE_SAMPLING_REALTIME` are ON:
    - `OMNITRACE_SAMPLING_CPUTIME_FREQ` and `OMNITRACE_SAMPLING_REALTIME_FREQ` can be used to individually control the sampling frequency 
  - `OMNITRACE_SAMPLING_CPUTIME_DELAY` and `OMNITRACE_SAMPLING_REALTIME_DELAY` can be used to individually control the delay time before starting
  - Now, omnitrace does not start a real-time sampler on the main thread unless `OMNITRACE_SAMPLING_REALTIME` is ON
    - In the future, an `OMNITRACE_SAMPLING_TIDS` (and real-time, cpu-time variants) configuration variable(s) will allow you to select which threads will be sampled
3. Files produced by `omnitrace` exe -- `available-instr.txt`, `instrumented-instr.txt`, etc. -- now no longer has `-instr` suffix and are placed in `instrumentation/` subfolder, i.e. `available-instr.txt` -> instrumentation/available.txt`
  - This helped de-clutter the output folder

Most of the other edits were reorganization (e.g. internal namespace changes), cleanup, and splitting up functionality.

## Bug Fixes

There is a bug fix with respect to the HSA callbacks which disabled sampling on child threads when an HSA API call was made

## Details

- created thread_info struct for mapping different thread IDs
- reorganized file structure significantly
- added categories.hpp, concepts.hpp
- moved around name trait definitions
- moved all omnitrace components into `omnitrace::component` namespace
  - there was a lot of inconsistency b/t using `tim::component` in some places and `omnitrace::component`
  - added macros like OMNITRACE_DECLARE_COMPONENT in lieu of TIMEMORY_DECLARE_COMPONENT
- OMNITRACE_CRITICAL_TRACE_NUM_THREADS -> OMNITRACE_THREAD_POOL_SIZE
- roctracer and critical_trace use same thread pool
- critical_trace functions do not lock anymore bc of thread-local TaskGroup
- added `component::local_category_region` to support using `component::category_region` without explicitly passing in name
- removed `component::omnitrace` (unused)
- migrated KokkosP and OMPT to use `component::local_category_region`
  - removed `component::user_region` as a result
- migrated omnitrace_{push,pop}_{trace,region}_hidden to use component::category_region
  - removed `component::functors` as a result
- migrated some ppdefs
- `api::omnitrace` -> `project::omnitrace`
- `api::(...)` -> `category::(...)`
- improved recording the execution time of threads
  - migrated this functionality out of pthread_create_gotcha and into thread_info
- moved mpi_gotcha, fork_gotcha, exit_gotcha, rcclp into omnitrace::component namespace
- split backtrace up into backtrace, backtrace_metrics, backtrace_timestamp components
- sampling.cpp handles setup and post-processing that was formerly in backtrace
- updated logging to use colors
- `OMNITRACE_COLORIZED_LOG` config variable
- updated docs on JSON output from timemory
- instrumentation info in instrumentation subfolder
- added testing for KokkosP entries
- added testing for ompt entries
- add_critical_trace function defined in critical_trace.hpp
- disable push_thread_state and pop_thread_state when thread state is Disabled or Completed
- add comp::page_rss to main bundle
- thread_data supports std::optional instead of std::unique_ptr
- thread_data supports tim::identity<T> to avoid unique_ptr or optional
- tracing::record_thread_start_time()
- tracing::push_timemory and tracing::pop_timemory are templated on CategoryT
- removed anonymous namespace from omnitrace::utility
- sampling backtrace stores instruction pointers instead of strings
- component::category_region updates
  - handle disabled thread state
  - handle finalized state
  - fewer debug messages
  - invoke thread_init()
  - invoke thread_init_sampling()
  - handle push/pop count based on category
  - push/pop count only modified when used
- component::cpu_freq
- components/ensure_storage.hpp
- reworked the pthread_create replacement function
- updated parallel-overhead example to report # of times locked
- OMNITRACE_MAX_UNWIND_DEPTH build option
- update timemory submodule
2022-08-31 01:24:31 -05:00