Files
rocm-systems/source/docs/output.md
T
Jonathan R. Madsen 593b3b69b8 Python updates (#38)
* silence SFINAE disabled for fork_gotcha

* Python updates

- Options for --{module,function}-include
- libpyomnitrace is_initialized and is_finalized
- source instrumentation auto init
- atexit finalization
- improved python testing

* Documentation Update

* Fix to 'cmake -E cat' not available < cmake v3.18

* Fix for inverse tests

* Update cancelling.yml
2022-04-05 20:40:27 -05:00

48 KiB

Omnitrace Output

.. toctree::
   :glob:
   :maxdepth: 3

Overview

The general output form of omnitrace is <OUTPUT_PATH>[/<TIMESTAMP>]/[<PREFIX>]<DATA_NAME>[-<OUTPUT_SUFFIX>].<EXT>.

E.g. with the base configuration:

export OMNITRACE_OUTPUT_PATH=omnitrace-example-output
export OMNITRACE_TIME_OUTPUT=ON
export OMNITRACE_USE_PID=OFF
export OMNITRACE_USE_TIMEMORY=ON
export OMNITRACE_USE_PERFETTO=ON
$ omnitrace -- ./foo
...
[omnitrace] Outputting 'omnitrace-example-output/perfetto-trace.proto'...

[omnitrace] Outputting 'omnitrace-example-output/wall-clock.txt'...
[omnitrace] Outputting 'omnitrace-example-output/wall-clock.json'...

If we enable the OMNITRACE_USE_PID option, then when our non-MPI executable is executed with a PID of 63453:

$ export OMNITRACE_USE_PID=ON
$ omnitrace -- ./foo
...
[omnitrace] Outputting 'omnitrace-example-output/perfetto-trace-63453.proto'...

[omnitrace] Outputting 'omnitrace-example-output/wall-clock-63453.txt'...
[omnitrace] Outputting 'omnitrace-example-output/wall-clock-63453.json'...

If we enable OMNITRACE_TIME_OUTPUT, then a job started on January 31, 2022 at 12:30 PM:

$ export OMNITRACE_TIME_OUTPUT=ON
$ omnitrace -- ./foo
...
[omnitrace] Outputting 'omnitrace-example-output/2022-01-31_12.30_PM/perfetto-trace-63453.proto'...

[omnitrace] Outputting 'omnitrace-example-output/2022-01-31_12.30_PM/wall-clock-63453.txt'...
[omnitrace] Outputting 'omnitrace-example-output/2022-01-31_12.30_PM/wall-clock-63453.json'...

Metadata

Omnitrace will output a metadata.json file.

Configuring Output

Core Configuration Settings

See also: Customizing Omnitrace Runtime

Setting Value Description
OMNITRACE_OUTPUT_PATH Any valid path Path to folder where output files should be placed
OMNITRACE_OUTPUT_PREFIX String Useful for multiple runs with different arguments. See Output Prefix Keys
OMNITRACE_OUTPUT_FILE Any valid filepath Specific location for perfetto output file.
OMNITRACE_TIME_OUTPUT Boolean Place all output in a timestamped folder, timestamp format controlled via OMNITRACE_TIME_FORMAT
OMNITRACE_TIME_FORMAT String See strftime man pages for valid identifiers
OMNITRACE_USE_PID Boolean Append either the PID or the MPI rank to all output files (before the extension)

Output Prefix Keys

Output prefix keys have many uses but most useful when dealing with multiple profiling runs or large MPI jobs. Their inclusion in omnitrace stems from their introduction into timemory for compile-time-perf which needed to be able to create different output files for a generic wrapper around compilation commands while still overwriting the output from the last time a file was compiled.

If you are ever doing scaling studies and specifying options via the command line, it is highly recommend to just use a common OMNITRACE_OUTPUT_PATH, disable OMNITRACE_TIME_OUTPUT, set OMNITRACE_OUTPUT_PREFIX="%argt%-" and let omnitrace cleanly organize the output.

String Encoding
%arg<N>% Command line argument at position <N> (zero indexed), e.g. %arg0% for first argument.
%arg<N>_hash% MD5 sum of %arg<N>%
%argv% Entire command-line condensed into a single string
%argv_hash% MD5 sum of %argv%
%argt% Similar to %argv% except basename of first command line argument
%argt_hash% MD5 sum if %argt%
%args% All command line arguments condensed into a single string
%args_hash% MD5 sum of %args%
%tag% Basename of first command line argument
%tag_hash% MD5 sum of %tag%
%pid% Process identifier (i.e. getpid())
%job% Value of SLURM_JOB_ID environment variable if exists, else 0
%rank% Value of SLURM_PROCID environment variable if exists, else MPI_Comm_rank (or 0 non-mpi)
%size% MPI_Comm_size or 1 if non-mpi
%m Shorthand for %argt_hash%
%p Shorthand for %pid%
%j Shorthand for %job%
%r Shorthand for %rank%
%s Shorthand for %size%

Any output prefix key which contain a / will have the / characters replaced with _ and any leading underscores will be stripped, e.g. if %arg0% is /usr/bin/foo, this will translate to usr_bin_foo. Additionally, any %arg<N>% keys which do not have a command line argument at position <N> will be ignored.

Perfetto Output

Use the OMNITRACE_OUTPUT_FILE to specify a specific location. If this is an absolute path, then all OMNITRACE_OUTPUT_PATH, etc. settings will be ignored.

Timemory Output

Use omnitrace-avail --components --filename to view the base filename for each component. E.g.

$ ./omnitrace-avail wall_clock -C -f
|---------------------------------|---------------|------------------------|
|            COMPONENT            |   AVAILABLE   |        FILENAME        |
|---------------------------------|---------------|------------------------|
| wall_clock                      |     true      | wall_clock             |
| sampling_wall_clock             |     true      | sampling_wall_clock    |
|---------------------------------|---------------|------------------------|

Setting OMNITRACE_COLLAPSE_THREADS=ON and/or OMNITRACE_COLLAPSE_PROCESSES=ON (only valid with full MPI support) the timemory output will combine the per-thread and/or per-rank data which have identical call-stacks.

The OMNITRACE_FLAT_PROFILE setting will remove all call stack heirarchy. Using OMNITRACE_FLAT_PROFILE=ON in combination with OMNITRACE_COLLAPSE_THREADS=ON is a useful configuration for identifying min/max measurements regardless of calling context. The OMNITRACE_TIMELINE_PROFILE setting (with OMNITRACE_FLAT_PROFILE=OFF) will effectively generate similar data that can be found in perfetto. Enabling timeline and flat profiling will effectively generate similar data to strace. However, while timemory in general requires significantly less memory than perfetto, this is not the case in timeline mode so activate this setting with caution.

Timemory Text Output

Hint: the generation of text output is configurable via OMNITRACE_TEXT_OUTPUT

Timemory text output files are meant for human-consumption (use JSON formats for analysis) and as such, some fields such as the LABEL fields may be truncated for readability. Modification of the truncation can be changed via the OMNITRACE_MAX_WIDTH setting.

Timemory Text Output Example

In the below, the NN field in |NN>>> is the thread ID. If MPI support is enabled, this will be |MM|NN>>> and MM will be the rank. If OMNITRACE_COLLAPSE_THREADS=ON and OMNITRACE_COLLAPSE_PROCESSES=ON, neither the MM nor the NN will be present unless the component explicitly sets type-traits which specify that the data is only relevant per-thread or per-process, e.g. the thread_cpu_clock clock component.

|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                                                                       REAL-CLOCK TIMER (I.E. WALL-CLOCK TIMER)                                                                      |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                            LABEL                             | COUNT  | DEPTH  |   METRIC   | UNITS  |   SUM     |   MEAN    |   MIN     |   MAX     |   VAR    | STDDEV   | % SELF |
|--------------------------------------------------------------|--------|--------|------------|--------|-----------|-----------|-----------|-----------|----------|----------|--------|
| |00>>> main                                                  |      1 |      0 | wall_clock | sec    | 13.360265 | 13.360265 | 13.360265 | 13.360265 | 0.000000 | 0.000000 |   18.2 |
| |00>>> |_ompt_thread_initial                                 |      1 |      1 | wall_clock | sec    | 10.924161 | 10.924161 | 10.924161 | 10.924161 | 0.000000 | 0.000000 |    0.0 |
| |00>>>   |_ompt_implicit_task                                |      1 |      2 | wall_clock | sec    | 10.923050 | 10.923050 | 10.923050 | 10.923050 | 0.000000 | 0.000000 |    0.1 |
| |00>>>     |_ompt_parallel [parallelism=12]                  |      1 |      3 | wall_clock | sec    | 10.915026 | 10.915026 | 10.915026 | 10.915026 | 0.000000 | 0.000000 |    0.0 |
| |00>>>       |_ompt_implicit_task                            |      1 |      4 | wall_clock | sec    | 10.647951 | 10.647951 | 10.647951 | 10.647951 | 0.000000 | 0.000000 |    0.0 |
| |00>>>         |_ompt_work_loop                              |    156 |      5 | wall_clock | sec    |  0.000812 |  0.000005 |  0.000001 |  0.000212 | 0.000000 | 0.000018 |  100.0 |
| |00>>>         |_ompt_work_single_executor                   |     40 |      5 | wall_clock | sec    |  0.000016 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |00>>>         |_ompt_sync_region_barrier_implicit           |    308 |      5 | wall_clock | sec    |  0.000629 |  0.000002 |  0.000001 |  0.000017 | 0.000000 | 0.000002 |  100.0 |
| |00>>>         |_conj_grad                                   |     76 |      5 | wall_clock | sec    | 10.641165 |  0.140015 |  0.131894 |  0.155099 | 0.000017 | 0.004080 |    1.0 |
| |00>>>           |_ompt_work_single_executor                 |    803 |      6 | wall_clock | sec    |  0.000292 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |00>>>           |_ompt_work_loop                            |   7904 |      6 | wall_clock | sec    |  7.420265 |  0.000939 |  0.000005 |  0.006974 | 0.000003 | 0.001613 |  100.0 |
| |00>>>           |_ompt_sync_region_barrier_implicit         |   6004 |      6 | wall_clock | sec    |  0.283160 |  0.000047 |  0.000001 |  0.004087 | 0.000000 | 0.000303 |  100.0 |
| |00>>>           |_ompt_sync_region_barrier_implementation   |   3952 |      6 | wall_clock | sec    |  2.829252 |  0.000716 |  0.000007 |  0.009005 | 0.000001 | 0.000985 |   99.7 |
| |00>>>             |_ompt_sync_region_reduction              |  15808 |      7 | wall_clock | sec    |  0.009142 |  0.000001 |  0.000000 |  0.000007 | 0.000000 | 0.000000 |  100.0 |
| |00>>>           |_ompt_work_single_other                    |   1249 |      6 | wall_clock | sec    |  0.000270 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |00>>>         |_ompt_work_single_other                      |    114 |      5 | wall_clock | sec    |  0.000024 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |00>>>         |_ompt_sync_region_barrier_implementation     |     76 |      5 | wall_clock | sec    |  0.000876 |  0.000012 |  0.000008 |  0.000025 | 0.000000 | 0.000003 |   84.4 |
| |00>>>           |_ompt_sync_region_reduction                |    304 |      6 | wall_clock | sec    |  0.000136 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |00>>>         |_ompt_master                                 |    226 |      5 | wall_clock | sec    |  0.001978 |  0.000009 |  0.000000 |  0.000038 | 0.000000 | 0.000012 |  100.0 |
| |11>>>       |_ompt_thread_worker                            |      1 |      4 | wall_clock | sec    | 10.656145 | 10.656145 | 10.656145 | 10.656145 | 0.000000 | 0.000000 |    0.1 |
| |11>>>         |_ompt_implicit_task                          |      1 |      5 | wall_clock | sec    | 10.649183 | 10.649183 | 10.649183 | 10.649183 | 0.000000 | 0.000000 |    0.0 |
| |11>>>           |_ompt_work_loop                            |    156 |      6 | wall_clock | sec    |  0.000852 |  0.000005 |  0.000002 |  0.000230 | 0.000000 | 0.000019 |  100.0 |
| |11>>>           |_ompt_work_single_other                    |    149 |      6 | wall_clock | sec    |  0.000035 |  0.000000 |  0.000000 |  0.000000 | 0.000000 | 0.000000 |  100.0 |
| |11>>>           |_ompt_sync_region_barrier_implicit         |    308 |      6 | wall_clock | sec    |  0.004135 |  0.000013 |  0.000001 |  0.001233 | 0.000000 | 0.000070 |  100.0 |
| |11>>>           |_conj_grad                                 |     76 |      6 | wall_clock | sec    | 10.641302 |  0.140017 |  0.131896 |  0.155102 | 0.000017 | 0.004080 |    0.6 |
| |11>>>             |_ompt_work_single_other                  |   2023 |      7 | wall_clock | sec    |  0.000458 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |11>>>             |_ompt_work_loop                          |   7904 |      7 | wall_clock | sec    |  8.253555 |  0.001044 |  0.000005 |  0.008021 | 0.000003 | 0.001790 |  100.0 |
| |11>>>             |_ompt_sync_region_barrier_implicit       |   6004 |      7 | wall_clock | sec    |  0.263840 |  0.000044 |  0.000001 |  0.004087 | 0.000000 | 0.000297 |  100.0 |
| |11>>>             |_ompt_sync_region_barrier_implementation |   3952 |      7 | wall_clock | sec    |  2.059823 |  0.000521 |  0.000007 |  0.009508 | 0.000001 | 0.000863 |  100.0 |
| |11>>>             |_ompt_work_single_executor               |     29 |      7 | wall_clock | sec    |  0.000011 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |11>>>           |_ompt_work_single_executor                 |      5 |      6 | wall_clock | sec    |  0.000002 |  0.000000 |  0.000000 |  0.000000 | 0.000000 | 0.000000 |  100.0 |
| |11>>>           |_ompt_sync_region_barrier_implementation   |     76 |      6 | wall_clock | sec    |  0.000975 |  0.000013 |  0.000008 |  0.000024 | 0.000000 | 0.000003 |  100.0 |
| |10>>>       |_ompt_thread_worker                            |      1 |      4 | wall_clock | sec    | 10.681664 | 10.681664 | 10.681664 | 10.681664 | 0.000000 | 0.000000 |    0.3 |
| |10>>>         |_ompt_implicit_task                          |      1 |      5 | wall_clock | sec    | 10.649158 | 10.649158 | 10.649158 | 10.649158 | 0.000000 | 0.000000 |    0.0 |
| |10>>>           |_ompt_work_loop                            |    156 |      6 | wall_clock | sec    |  0.000863 |  0.000006 |  0.000002 |  0.000231 | 0.000000 | 0.000019 |  100.0 |
| |10>>>           |_ompt_work_single_other                    |    140 |      6 | wall_clock | sec    |  0.000037 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |10>>>           |_ompt_sync_region_barrier_implicit         |    308 |      6 | wall_clock | sec    |  0.004149 |  0.000013 |  0.000001 |  0.001221 | 0.000000 | 0.000070 |  100.0 |
| |10>>>           |_conj_grad                                 |     76 |      6 | wall_clock | sec    | 10.641288 |  0.140017 |  0.131896 |  0.155101 | 0.000017 | 0.004080 |    0.7 |
| |10>>>             |_ompt_work_single_other                  |   1883 |      7 | wall_clock | sec    |  0.000487 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |10>>>             |_ompt_work_loop                          |   7904 |      7 | wall_clock | sec    |  8.174545 |  0.001034 |  0.000005 |  0.006899 | 0.000003 | 0.001766 |  100.0 |
| |10>>>             |_ompt_sync_region_barrier_implicit       |   6004 |      7 | wall_clock | sec    |  0.268808 |  0.000045 |  0.000001 |  0.004087 | 0.000000 | 0.000299 |  100.0 |
| |10>>>             |_ompt_sync_region_barrier_implementation |   3952 |      7 | wall_clock | sec    |  2.126988 |  0.000538 |  0.000007 |  0.009843 | 0.000001 | 0.000872 |   99.9 |
| |10>>>               |_ompt_sync_region_reduction            |   3952 |      8 | wall_clock | sec    |  0.002574 |  0.000001 |  0.000000 |  0.000014 | 0.000000 | 0.000000 |  100.0 |
| |10>>>             |_ompt_work_single_executor               |    169 |      7 | wall_clock | sec    |  0.000072 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |10>>>           |_ompt_sync_region_barrier_implementation   |     76 |      6 | wall_clock | sec    |  0.000954 |  0.000013 |  0.000009 |  0.000023 | 0.000000 | 0.000003 |   95.9 |
| |10>>>             |_ompt_sync_region_reduction              |     76 |      7 | wall_clock | sec    |  0.000039 |  0.000001 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |10>>>           |_ompt_work_single_executor                 |     14 |      6 | wall_clock | sec    |  0.000006 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |09>>>       |_ompt_thread_worker                            |      1 |      4 | wall_clock | sec    | 10.686552 | 10.686552 | 10.686552 | 10.686552 | 0.000000 | 0.000000 |    0.3 |
| |09>>>         |_ompt_implicit_task                          |      1 |      5 | wall_clock | sec    | 10.649151 | 10.649151 | 10.649151 | 10.649151 | 0.000000 | 0.000000 |    0.0 |
| |09>>>           |_ompt_work_loop                            |    156 |      6 | wall_clock | sec    |  0.000880 |  0.000006 |  0.000002 |  0.000258 | 0.000000 | 0.000021 |  100.0 |
| |09>>>           |_ompt_work_single_other                    |    148 |      6 | wall_clock | sec    |  0.000034 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |09>>>           |_ompt_sync_region_barrier_implicit         |    308 |      6 | wall_clock | sec    |  0.004129 |  0.000013 |  0.000001 |  0.001210 | 0.000000 | 0.000069 |  100.0 |
| |09>>>           |_conj_grad                                 |     76 |      6 | wall_clock | sec    | 10.641308 |  0.140017 |  0.131895 |  0.155102 | 0.000017 | 0.004080 |    0.7 |
| |09>>>             |_ompt_work_single_other                  |   2043 |      7 | wall_clock | sec    |  0.000473 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |09>>>             |_ompt_work_loop                          |   7904 |      7 | wall_clock | sec    |  7.977001 |  0.001009 |  0.000005 |  0.007325 | 0.000003 | 0.001732 |  100.0 |
| |09>>>             |_ompt_sync_region_barrier_implicit       |   6004 |      7 | wall_clock | sec    |  0.242996 |  0.000040 |  0.000001 |  0.004087 | 0.000000 | 0.000284 |  100.0 |
| |09>>>             |_ompt_sync_region_barrier_implementation |   3952 |      7 | wall_clock | sec    |  2.350895 |  0.000595 |  0.000007 |  0.008689 | 0.000001 | 0.000926 |  100.0 |
| |09>>>             |_ompt_work_single_executor               |      9 |      7 | wall_clock | sec    |  0.000004 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |09>>>           |_ompt_sync_region_barrier_implementation   |     76 |      6 | wall_clock | sec    |  0.000973 |  0.000013 |  0.000008 |  0.000025 | 0.000000 | 0.000003 |  100.0 |
| |09>>>           |_ompt_work_single_executor                 |      6 |      6 | wall_clock | sec    |  0.000002 |  0.000000 |  0.000000 |  0.000000 | 0.000000 | 0.000000 |  100.0 |
| |08>>>       |_ompt_thread_worker                            |      1 |      4 | wall_clock | sec    | 10.721622 | 10.721622 | 10.721622 | 10.721622 | 0.000000 | 0.000000 |    0.7 |
| |08>>>         |_ompt_implicit_task                          |      1 |      5 | wall_clock | sec    | 10.649135 | 10.649135 | 10.649135 | 10.649135 | 0.000000 | 0.000000 |    0.0 |
| |08>>>           |_ompt_work_loop                            |    156 |      6 | wall_clock | sec    |  0.000839 |  0.000005 |  0.000001 |  0.000231 | 0.000000 | 0.000019 |  100.0 |
| |08>>>           |_ompt_work_single_other                    |    141 |      6 | wall_clock | sec    |  0.000030 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |08>>>           |_ompt_sync_region_barrier_implicit         |    308 |      6 | wall_clock | sec    |  0.004114 |  0.000013 |  0.000001 |  0.001198 | 0.000000 | 0.000069 |  100.0 |
| |08>>>           |_conj_grad                                 |     76 |      6 | wall_clock | sec    | 10.641294 |  0.140017 |  0.131896 |  0.155101 | 0.000017 | 0.004080 |    0.6 |
| |08>>>             |_ompt_work_single_other                  |   1742 |      7 | wall_clock | sec    |  0.000392 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |08>>>             |_ompt_work_loop                          |   7904 |      7 | wall_clock | sec    |  8.306388 |  0.001051 |  0.000005 |  0.007886 | 0.000003 | 0.001795 |  100.0 |
| |08>>>             |_ompt_sync_region_barrier_implicit       |   6004 |      7 | wall_clock | sec    |  0.274358 |  0.000046 |  0.000001 |  0.004090 | 0.000000 | 0.000302 |  100.0 |
| |08>>>             |_ompt_sync_region_barrier_implementation |   3952 |      7 | wall_clock | sec    |  1.991251 |  0.000504 |  0.000007 |  0.008694 | 0.000001 | 0.000844 |   99.8 |
| |08>>>               |_ompt_sync_region_reduction            |   7904 |      8 | wall_clock | sec    |  0.003816 |  0.000000 |  0.000000 |  0.000017 | 0.000000 | 0.000000 |  100.0 |
| |08>>>             |_ompt_work_single_executor               |    310 |      7 | wall_clock | sec    |  0.000112 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |08>>>           |_ompt_sync_region_barrier_implementation   |     76 |      6 | wall_clock | sec    |  0.000955 |  0.000013 |  0.000009 |  0.000026 | 0.000000 | 0.000003 |   93.7 |
| |08>>>             |_ompt_sync_region_reduction              |    152 |      7 | wall_clock | sec    |  0.000060 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |08>>>           |_ompt_work_single_executor                 |     13 |      6 | wall_clock | sec    |  0.000005 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |07>>>       |_ompt_thread_worker                            |      1 |      4 | wall_clock | sec    | 10.747282 | 10.747282 | 10.747282 | 10.747282 | 0.000000 | 0.000000 |    0.9 |
| |07>>>         |_ompt_implicit_task                          |      1 |      5 | wall_clock | sec    | 10.649093 | 10.649093 | 10.649093 | 10.649093 | 0.000000 | 0.000000 |    0.0 |
| |07>>>           |_ompt_work_loop                            |    156 |      6 | wall_clock | sec    |  0.000923 |  0.000006 |  0.000002 |  0.000231 | 0.000000 | 0.000019 |  100.0 |
| |07>>>           |_ompt_work_single_other                    |    152 |      6 | wall_clock | sec    |  0.000048 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |07>>>           |_ompt_sync_region_barrier_implicit         |    308 |      6 | wall_clock | sec    |  0.003981 |  0.000013 |  0.000001 |  0.001186 | 0.000000 | 0.000068 |  100.0 |
| |07>>>           |_conj_grad                                 |     76 |      6 | wall_clock | sec    | 10.641295 |  0.140017 |  0.131896 |  0.155101 | 0.000017 | 0.004080 |    0.7 |
| |07>>>             |_ompt_work_single_other                  |   2043 |      7 | wall_clock | sec    |  0.000648 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |07>>>             |_ompt_work_loop                          |   7904 |      7 | wall_clock | sec    |  7.978811 |  0.001009 |  0.000005 |  0.006728 | 0.000003 | 0.001732 |  100.0 |
| |07>>>             |_ompt_sync_region_barrier_implicit       |   6004 |      7 | wall_clock | sec    |  0.199939 |  0.000033 |  0.000001 |  0.004086 | 0.000000 | 0.000255 |  100.0 |
| |07>>>             |_ompt_sync_region_barrier_implementation |   3952 |      7 | wall_clock | sec    |  2.385843 |  0.000604 |  0.000009 |  0.009039 | 0.000001 | 0.000938 |  100.0 |
| |07>>>             |_ompt_work_single_executor               |      9 |      7 | wall_clock | sec    |  0.000004 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |07>>>           |_ompt_sync_region_barrier_implementation   |     76 |      6 | wall_clock | sec    |  0.000905 |  0.000012 |  0.000010 |  0.000025 | 0.000000 | 0.000003 |  100.0 |
| |07>>>           |_ompt_work_single_executor                 |      2 |      6 | wall_clock | sec    |  0.000001 |  0.000001 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |06>>>       |_ompt_thread_worker                            |      1 |      4 | wall_clock | sec    | 10.772278 | 10.772278 | 10.772278 | 10.772278 | 0.000000 | 0.000000 |    1.1 |
| |06>>>         |_ompt_implicit_task                          |      1 |      5 | wall_clock | sec    | 10.649092 | 10.649092 | 10.649092 | 10.649092 | 0.000000 | 0.000000 |    0.0 |
| |06>>>           |_ompt_work_loop                            |    156 |      6 | wall_clock | sec    |  0.000888 |  0.000006 |  0.000002 |  0.000236 | 0.000000 | 0.000020 |  100.0 |
| |06>>>           |_ompt_work_single_other                    |    153 |      6 | wall_clock | sec    |  0.000037 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |06>>>           |_ompt_sync_region_barrier_implicit         |    308 |      6 | wall_clock | sec    |  0.004090 |  0.000013 |  0.000001 |  0.001175 | 0.000000 | 0.000067 |  100.0 |
| |06>>>           |_conj_grad                                 |     76 |      6 | wall_clock | sec    | 10.641317 |  0.140017 |  0.131896 |  0.155101 | 0.000017 | 0.004080 |    0.8 |
| |06>>>             |_ompt_work_single_other                  |   2041 |      7 | wall_clock | sec    |  0.000476 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |06>>>             |_ompt_work_loop                          |   7904 |      7 | wall_clock | sec    |  7.467961 |  0.000945 |  0.000005 |  0.010712 | 0.000003 | 0.001627 |  100.0 |
| |06>>>             |_ompt_sync_region_barrier_implicit       |   6004 |      7 | wall_clock | sec    |  0.250883 |  0.000042 |  0.000001 |  0.004087 | 0.000000 | 0.000285 |  100.0 |
| |06>>>             |_ompt_sync_region_barrier_implementation |   3952 |      7 | wall_clock | sec    |  2.838733 |  0.000718 |  0.000009 |  0.009015 | 0.000001 | 0.001015 |   99.9 |
| |06>>>               |_ompt_sync_region_reduction            |   3952 |      8 | wall_clock | sec    |  0.003334 |  0.000001 |  0.000000 |  0.000025 | 0.000000 | 0.000001 |  100.0 |
| |06>>>             |_ompt_work_single_executor               |     11 |      7 | wall_clock | sec    |  0.000005 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |06>>>           |_ompt_sync_region_barrier_implementation   |     76 |      6 | wall_clock | sec    |  0.000940 |  0.000012 |  0.000009 |  0.000025 | 0.000000 | 0.000003 |   95.4 |
| |06>>>             |_ompt_sync_region_reduction              |     76 |      7 | wall_clock | sec    |  0.000044 |  0.000001 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |06>>>           |_ompt_work_single_executor                 |      1 |      6 | wall_clock | sec    |  0.000000 |  0.000000 |  0.000000 |  0.000000 | 0.000000 | 0.000000 |  100.0 |
| |05>>>       |_ompt_thread_worker                            |      1 |      4 | wall_clock | sec    | 10.797950 | 10.797950 | 10.797950 | 10.797950 | 0.000000 | 0.000000 |    1.4 |
| |05>>>         |_ompt_implicit_task                          |      1 |      5 | wall_clock | sec    | 10.649072 | 10.649072 | 10.649072 | 10.649072 | 0.000000 | 0.000000 |    0.0 |
| |05>>>           |_ompt_work_loop                            |    156 |      6 | wall_clock | sec    |  0.000879 |  0.000006 |  0.000001 |  0.000248 | 0.000000 | 0.000021 |  100.0 |
| |05>>>           |_ompt_work_single_other                    |    142 |      6 | wall_clock | sec    |  0.000034 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |05>>>           |_ompt_sync_region_barrier_implicit         |    308 |      6 | wall_clock | sec    |  0.004062 |  0.000013 |  0.000002 |  0.001163 | 0.000000 | 0.000067 |  100.0 |
| |05>>>           |_conj_grad                                 |     76 |      6 | wall_clock | sec    | 10.641291 |  0.140017 |  0.131896 |  0.155101 | 0.000017 | 0.004080 |    0.7 |
| |05>>>             |_ompt_work_single_other                  |   2038 |      7 | wall_clock | sec    |  0.000500 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |05>>>             |_ompt_work_loop                          |   7904 |      7 | wall_clock | sec    |  8.279191 |  0.001047 |  0.000005 |  0.006596 | 0.000003 | 0.001792 |  100.0 |
| |05>>>             |_ompt_sync_region_barrier_implicit       |   6004 |      7 | wall_clock | sec    |  0.250939 |  0.000042 |  0.000001 |  0.004090 | 0.000000 | 0.000286 |  100.0 |
| |05>>>             |_ompt_sync_region_barrier_implementation |   3952 |      7 | wall_clock | sec    |  2.039013 |  0.000516 |  0.000009 |  0.008689 | 0.000001 | 0.000855 |  100.0 |
| |05>>>             |_ompt_work_single_executor               |     14 |      7 | wall_clock | sec    |  0.000005 |  0.000000 |  0.000000 |  0.000000 | 0.000000 | 0.000000 |  100.0 |
| |05>>>           |_ompt_sync_region_barrier_implementation   |     76 |      6 | wall_clock | sec    |  0.000926 |  0.000012 |  0.000009 |  0.000023 | 0.000000 | 0.000003 |  100.0 |
| |05>>>           |_ompt_work_single_executor                 |     12 |      6 | wall_clock | sec    |  0.000005 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |04>>>       |_ompt_thread_worker                            |      1 |      4 | wall_clock | sec    | 10.825935 | 10.825935 | 10.825935 | 10.825935 | 0.000000 | 0.000000 |    1.6 |
| |04>>>         |_ompt_implicit_task                          |      1 |      5 | wall_clock | sec    | 10.649068 | 10.649068 | 10.649068 | 10.649068 | 0.000000 | 0.000000 |    0.0 |
| |04>>>           |_ompt_work_loop                            |    156 |      6 | wall_clock | sec    |  0.000884 |  0.000006 |  0.000002 |  0.000245 | 0.000000 | 0.000020 |  100.0 |
| |04>>>           |_ompt_work_single_other                    |    150 |      6 | wall_clock | sec    |  0.000034 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |04>>>           |_ompt_sync_region_barrier_implicit         |    308 |      6 | wall_clock | sec    |  0.004069 |  0.000013 |  0.000001 |  0.001151 | 0.000000 | 0.000066 |  100.0 |
| |04>>>           |_conj_grad                                 |     76 |      6 | wall_clock | sec    | 10.641300 |  0.140017 |  0.131896 |  0.155101 | 0.000017 | 0.004080 |    1.1 |
| |04>>>             |_ompt_work_single_other                  |   2041 |      7 | wall_clock | sec    |  0.000448 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |04>>>             |_ompt_work_loop                          |   7904 |      7 | wall_clock | sec    |  7.438393 |  0.000941 |  0.000005 |  0.007090 | 0.000003 | 0.001624 |  100.0 |
| |04>>>             |_ompt_sync_region_barrier_implicit       |   6004 |      7 | wall_clock | sec    |  0.270654 |  0.000045 |  0.000001 |  0.004090 | 0.000000 | 0.000295 |  100.0 |
| |04>>>             |_ompt_sync_region_barrier_implementation |   3952 |      7 | wall_clock | sec    |  2.819165 |  0.000713 |  0.000009 |  0.008379 | 0.000001 | 0.001013 |   99.9 |
| |04>>>               |_ompt_sync_region_reduction            |   7904 |      8 | wall_clock | sec    |  0.003932 |  0.000000 |  0.000000 |  0.000015 | 0.000000 | 0.000000 |  100.0 |
| |04>>>             |_ompt_work_single_executor               |     11 |      7 | wall_clock | sec    |  0.000005 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |04>>>           |_ompt_sync_region_barrier_implementation   |     76 |      6 | wall_clock | sec    |  0.000936 |  0.000012 |  0.000009 |  0.000025 | 0.000000 | 0.000003 |   93.2 |
| |04>>>             |_ompt_sync_region_reduction              |    152 |      7 | wall_clock | sec    |  0.000064 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |04>>>           |_ompt_work_single_executor                 |      4 |      6 | wall_clock | sec    |  0.000001 |  0.000000 |  0.000000 |  0.000000 | 0.000000 | 0.000000 |  100.0 |
| |03>>>       |_ompt_thread_worker                            |      1 |      4 | wall_clock | sec    | 10.849322 | 10.849322 | 10.849322 | 10.849322 | 0.000000 | 0.000000 |    1.8 |
| |03>>>         |_ompt_implicit_task                          |      1 |      5 | wall_clock | sec    | 10.649075 | 10.649075 | 10.649075 | 10.649075 | 0.000000 | 0.000000 |    0.0 |
| |03>>>           |_ompt_work_loop                            |    156 |      6 | wall_clock | sec    |  0.000861 |  0.000006 |  0.000002 |  0.000238 | 0.000000 | 0.000020 |  100.0 |
| |03>>>           |_ompt_work_single_other                    |    120 |      6 | wall_clock | sec    |  0.000028 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |03>>>           |_ompt_sync_region_barrier_implicit         |    308 |      6 | wall_clock | sec    |  0.003993 |  0.000013 |  0.000001 |  0.001138 | 0.000000 | 0.000065 |  100.0 |
| |03>>>           |_conj_grad                                 |     76 |      6 | wall_clock | sec    | 10.641302 |  0.140017 |  0.131896 |  0.155101 | 0.000017 | 0.004080 |    0.8 |
| |03>>>             |_ompt_work_single_other                  |   1756 |      7 | wall_clock | sec    |  0.000426 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |03>>>             |_ompt_work_loop                          |   7904 |      7 | wall_clock | sec    |  8.005617 |  0.001013 |  0.000005 |  0.011500 | 0.000003 | 0.001741 |  100.0 |
| |03>>>             |_ompt_sync_region_barrier_implicit       |   6004 |      7 | wall_clock | sec    |  0.231485 |  0.000039 |  0.000001 |  0.004086 | 0.000000 | 0.000277 |  100.0 |
| |03>>>             |_ompt_sync_region_barrier_implementation |   3952 |      7 | wall_clock | sec    |  2.320428 |  0.000587 |  0.000009 |  0.010868 | 0.000001 | 0.000912 |  100.0 |
| |03>>>             |_ompt_work_single_executor               |    296 |      7 | wall_clock | sec    |  0.000120 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |03>>>           |_ompt_sync_region_barrier_implementation   |     76 |      6 | wall_clock | sec    |  0.000967 |  0.000013 |  0.000010 |  0.000023 | 0.000000 | 0.000003 |  100.0 |
| |03>>>           |_ompt_work_single_executor                 |     34 |      6 | wall_clock | sec    |  0.000013 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |02>>>       |_ompt_thread_worker                            |      1 |      4 | wall_clock | sec    | 10.876387 | 10.876387 | 10.876387 | 10.876387 | 0.000000 | 0.000000 |    2.1 |
| |02>>>         |_ompt_implicit_task                          |      1 |      5 | wall_clock | sec    | 10.649050 | 10.649050 | 10.649050 | 10.649050 | 0.000000 | 0.000000 |    0.0 |
| |02>>>           |_ompt_work_loop                            |    156 |      6 | wall_clock | sec    |  0.000924 |  0.000006 |  0.000001 |  0.000241 | 0.000000 | 0.000020 |  100.0 |
| |02>>>           |_ompt_work_single_other                    |    139 |      6 | wall_clock | sec    |  0.000040 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |02>>>           |_ompt_sync_region_barrier_implicit         |    308 |      6 | wall_clock | sec    |  0.003972 |  0.000013 |  0.000001 |  0.001127 | 0.000000 | 0.000064 |  100.0 |
| |02>>>           |_conj_grad                                 |     76 |      6 | wall_clock | sec    | 10.641287 |  0.140017 |  0.131895 |  0.155101 | 0.000017 | 0.004080 |    0.7 |
| |02>>>             |_ompt_work_single_other                  |   1902 |      7 | wall_clock | sec    |  0.000553 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |02>>>             |_ompt_work_loop                          |   7904 |      7 | wall_clock | sec    |  7.906688 |  0.001000 |  0.000005 |  0.007068 | 0.000003 | 0.001713 |  100.0 |
| |02>>>             |_ompt_sync_region_barrier_implicit       |   6004 |      7 | wall_clock | sec    |  0.261367 |  0.000044 |  0.000001 |  0.004088 | 0.000000 | 0.000295 |  100.0 |
| |02>>>             |_ompt_sync_region_barrier_implementation |   3952 |      7 | wall_clock | sec    |  2.402362 |  0.000608 |  0.000009 |  0.010399 | 0.000001 | 0.000944 |   99.9 |
| |02>>>               |_ompt_sync_region_reduction            |   3952 |      8 | wall_clock | sec    |  0.002937 |  0.000001 |  0.000000 |  0.000021 | 0.000000 | 0.000000 |  100.0 |
| |02>>>             |_ompt_work_single_executor               |    150 |      7 | wall_clock | sec    |  0.000073 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |02>>>           |_ompt_sync_region_barrier_implementation   |     76 |      6 | wall_clock | sec    |  0.000895 |  0.000012 |  0.000009 |  0.000026 | 0.000000 | 0.000003 |   95.2 |
| |02>>>             |_ompt_sync_region_reduction              |     76 |      7 | wall_clock | sec    |  0.000043 |  0.000001 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |02>>>           |_ompt_work_single_executor                 |     15 |      6 | wall_clock | sec    |  0.000007 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |01>>>       |_ompt_thread_worker                            |      1 |      4 | wall_clock | sec    | 10.901650 | 10.901650 | 10.901650 | 10.901650 | 0.000000 | 0.000000 |    2.3 |
| |01>>>         |_ompt_implicit_task                          |      1 |      5 | wall_clock | sec    | 10.649017 | 10.649017 | 10.649017 | 10.649017 | 0.000000 | 0.000000 |    0.0 |
| |01>>>           |_ompt_work_loop                            |    156 |      6 | wall_clock | sec    |  0.000863 |  0.000006 |  0.000001 |  0.000231 | 0.000000 | 0.000019 |  100.0 |
| |01>>>           |_ompt_work_single_other                    |    146 |      6 | wall_clock | sec    |  0.000033 |  0.000000 |  0.000000 |  0.000000 | 0.000000 | 0.000000 |  100.0 |
| |01>>>           |_ompt_sync_region_barrier_implicit         |    308 |      6 | wall_clock | sec    |  0.004012 |  0.000013 |  0.000001 |  0.001115 | 0.000000 | 0.000064 |  100.0 |
| |01>>>           |_conj_grad                                 |     76 |      6 | wall_clock | sec    | 10.641316 |  0.140017 |  0.131895 |  0.155101 | 0.000017 | 0.004080 |    0.8 |
| |01>>>             |_ompt_work_single_other                  |   1811 |      7 | wall_clock | sec    |  0.000403 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |01>>>             |_ompt_work_loop                          |   7904 |      7 | wall_clock | sec    |  7.410337 |  0.000938 |  0.000005 |  0.010556 | 0.000003 | 0.001610 |  100.0 |
| |01>>>             |_ompt_sync_region_barrier_implicit       |   6004 |      7 | wall_clock | sec    |  0.202494 |  0.000034 |  0.000001 |  0.003521 | 0.000000 | 0.000256 |  100.0 |
| |01>>>             |_ompt_sync_region_barrier_implementation |   3952 |      7 | wall_clock | sec    |  2.943604 |  0.000745 |  0.000008 |  0.009033 | 0.000001 | 0.001024 |  100.0 |
| |01>>>             |_ompt_work_single_executor               |    241 |      7 | wall_clock | sec    |  0.000093 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |01>>>           |_ompt_sync_region_barrier_implementation   |     76 |      6 | wall_clock | sec    |  0.000917 |  0.000012 |  0.000009 |  0.000026 | 0.000000 | 0.000003 |  100.0 |
| |01>>>           |_ompt_work_single_executor                 |      8 |      6 | wall_clock | sec    |  0.000004 |  0.000000 |  0.000000 |  0.000001 | 0.000000 | 0.000000 |  100.0 |
| |00>>>   |_c_print_results                                   |      1 |      2 | wall_clock | sec    |  0.000049 |  0.000049 |  0.000049 |  0.000049 | 0.000000 | 0.000000 |  100.0 |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

Timemory Flat JSON Output

Hint: the generation of flat JSON output is configurable via OMNITRACE_JSON_OUTPUT

Timemory provides two JSON output formats. The flat JSON output files are similar to the text files: the hierarchical information is represented by the indentation of the "prefix" field and the "depth" field. All the data entries are in a single JSON array, e.g. the ["timemory"]["wall_clock"]["ranks"][0]["graph"][<N>]["prefix"] entry in the below:

{
    "timemory": {
        "wall_clock": {
            "description": "Real-clock timer (i.e. wall-clock timer)",
            "thread_count": 12,
            "process_count": 1,
            "properties": {
                "cereal_class_version": 0,
                "enum": "WALL_CLOCK",
                "id": "wall_clock",
                "value": 78,
                "ids": [
                    "real_clock",
                    "virtual_clock",
                    "wall_clock"
                ]
            },
            "mpi_size": 0,
            "num_ranks": 1,
            "concurrency": 12,
            "upcxx_size": 1,
            "unit_value": 1000000000,
            "thread_scope_only": false,
            "type": "wall_clock",
            "unit_repr": "sec",
            "ranks": [
                {
                    "graph_size": 173,
                    "rank": 0,
                    "graph": [
                        {
                            "depth": 0,
                            "stats": {
                                "count": 1,
                                "min": 13.360264917,
                                "sqr": 178.49667865242102,
                                "sum": 13.360264917,
                                "stddev": 0.0,
                                "max": 13.360264917,
                                "cereal_class_version": 0,
                                "mean": 13.360264917
                            },
                            "prefix": "|00>>> main",
                            "rolling_hash": 17481650134347108265,
                            "entry": {
                                "repr_display": 13.360264917,
                                "value": 13360264917,
                                "repr_data": 13.360264917,
                                "cereal_class_version": 0,
                                "accum": 13360264917,
                                "laps": 1
                            },
                            "hash": 17481650134347108265
                        },
                        {
                            "depth": 1,
                            "stats": {
                                "count": 1,
                                "min": 10.924160502,
                                "max": 10.924160502,
                                "sum": 10.924160502,
                                "stddev": 0.0,
                                "sqr": 119.33728267345688,
                                "mean": 10.924160502
                            },
                            "prefix": "|00>>> |_ompt_thread_initial",
                            "rolling_hash": 5142782188440775656,
                            "entry": {
                                "repr_display": 10.924160502,
                                "laps": 1,
                                "accum": 10924160502,
                                "repr_data": 10.924160502,
                                "value": 10924160502
                            },
                            "hash": 6107876127803219007
                        },
                        {
                            "depth": 2,
                            "stats": {
                                "count": 1,
                                "min": 10.923050237,
                                "max": 10.923050237,
                                "sum": 10.923050237,
                                "stddev": 0.0,
                                "sqr": 119.31302648002575,
                                "mean": 10.923050237
                            },
                            "prefix": "|00>>>   |_ompt_implicit_task",
                            "rolling_hash": 2098840206724841601,
                            "entry": {
                                "repr_display": 10.923050237,
                                "laps": 1,
                                "accum": 10923050237,
                                "repr_data": 10.923050237,
                                "value": 10923050237
                            },
                            "hash": 15402802091993617561
                        },
                        {
                            "..." : "... etc. ..."
                        }
                    ]
                }
            ]
        }
    }
}

This format is easier than the hierarchical format to write a simple Python script for post-processing, e.g.:

#!/usr/bin/env python3

import sys
import json


def read_json(inp):
    with open(inp, "r") as f:
        return json.load(f)


def find_max(data):
    """Find the max for any function called multiple times"""
    max_entry = None
    for itr in data:
        if itr["entry"]["laps"] == 1:
            continue
        if max_entry is None:
            max_entry = itr
        else:
            if itr["stats"]["mean"] > max_entry["stats"]["mean"]:
                max_entry = itr
    return max_entry


def strip_name(name):
    """Return everything after |_ if it exists"""
    idx = name.index("|_")
    return name if idx is None else name[(idx + 2) :]


if __name__ == "__main__":

    input_data = [[x, read_json(x)] for x in sys.argv[1:]]

    for file, data in input_data:
        for metric, metric_data in data["timemory"].items():

            print(f"[{file}] Found metric: {metric}")

            for n, itr in enumerate(metric_data["ranks"]):

                max_entry = find_max(itr["graph"])
                print(
                    "[{}] Maximum value: '{}' at depth {} was called {}x :: {:.3f} {} (mean = {:.3e} {})".format(
                        file,
                        strip_name(max_entry["prefix"]),
                        max_entry["depth"],
                        max_entry["entry"]["laps"],
                        max_entry["entry"]["repr_data"],
                        metric_data["unit_repr"],
                        max_entry["stats"]["mean"],
                        metric_data["unit_repr"],
                    )
                )

This script applied to the corresponding JSON output from Text Output Example would be:

[openmp-cg.inst-wall_clock.json] Found metric: wall_clock
[openmp-cg.inst-wall_clock.json] Maximum value: 'conj_grad' at depth 6 was called 76x :: 10.641 sec (mean = 1.400e-01 sec)

Timemory Hierarchical JSON Output

Hint: the generation of hierarchical JSON output is configurable via OMNITRACE_TREE_OUTPUT

The hierarchical JSON output (extension: .tree.json) contains the very similar data to the flat JSON output, however, it's structure requires processing through recursion. The main use of these files are their analysis support by hatchet.