Command line reference documentation¶
The utilities are described below.
comet login¶
You can use comet login to create a Comet configuration file with your API key
$ comet login
You will be prompted for your Comet API key. You can also do this programmatically. For information on using comet_ml.login(), see Comet Quickstart.
comet check¶
The comet check command is used to check to see if your environment is set up properly to use Comet.
Usage:
comet check [-h] [--debug]
The simplest use is:
$ comet check
COMET INFO: ================================================================================
COMET INFO: Checking connectivity to server...
COMET INFO: ================================================================================
COMET INFO: Configured server address 'https://www.comet.com/clientlib/'
COMET INFO: Server address was configured in INI file '/home/user/.comet.config'
COMET INFO: Server connection is ok
COMET INFO: ================================================================================
COMET INFO: Checking connectivity to Rest API...
COMET INFO: ================================================================================
COMET INFO: Configured Rest API address 'https://www.comet.com/api/rest/v2/'
COMET INFO: Rest API address was configured in INI file '/home/user/.comet.config'
COMET INFO: REST API connection is ok
COMET INFO: ================================================================================
COMET INFO: Checking connectivity to Websocket Server
COMET INFO: ================================================================================
COMET WARNING: No WS address configured on client side, fallbacking on default WS address
'wss://www.comet.com/ws/logger-ws'.
If that's incorrect set the WS url through the `comet.ws_url_override` config key.
COMET INFO: Configured WS address 'wss://www.comet.com/ws/logger-ws'
COMET INFO: Websocket connection is ok
COMET INFO: ================================================================================
COMET INFO: Checking connectivity to Optimizer Server
COMET INFO: ================================================================================
COMET INFO: Configured Optimizer address 'https://www.comet.com/optimizer/'
COMET INFO: Optimizer address was configured in INI file '/home/user/.comet.config'
COMET INFO: Optimizer connection is ok
COMET INFO: Summary
COMET INFO: --------------------------------------------------------------------------------
COMET INFO: Server connectivity True
COMET INFO: Rest API connectivity True
COMET INFO: WS server connectivity True
COMET INFO: Optimizer server connectivity True
Running with the --debug flag will provide additional details. This is quite handy for tracking down issues, especially with a new environment, or on an on-prem installation.
comet upload¶
The comet upload utility is used for uploading OfflineExperiments to Comet. Consider the following command line:
$ comet upload /tmp/comet/5da271fcb60b4652a51dfc0decbe7cd9.zip
comet upload is installed when you installed comet_ml. If the command comet cannot be found, then you can try this more direct invocation using the same Python environment, so:
$ python -m comet_ml.scripts.comet_upload /tmp/comet/5da271fcb60b4652a51dfc0decbe7cd9.zip
Don’t forget to include your API Key and update the experiment path to the one displayed at the end of your OfflineExperiment script run.
To upload an offline experiment, you need to have configured your Comet API key. The recommended approach is to use the comet login command as described in the Configure Comet guide. You can also configure the API key using either an environment variable, or the Comet config file.
Sending multiple offline experiments is easy. To do so, execute the same comet upload command as before, but just replace the path to your experiment, so:
$ comet upload /path/to/*.zip
or
$ python -m comet_ml.scripts.comet_upload /path/to/*.zip
Debugging¶
If you encounter any bugs with either the OfflineExperiment class or uploading, run the uploader with the following:
$ COMET_LOGGING_FILE_LEVEL=debug \
COMET_LOGGING_FILE=/tmp/comet.debug.log \
COMET_API_KEY=MY_API_KEY \
comet upload /path/to/experiments/*.zip
or
$ COMET_LOGGING_FILE_LEVEL=debug \
COMET_LOGGING_FILE=/tmp/comet.debug.log \
COMET_API_KEY=MY_API_KEY \
python -m comet_ml.scripts.comet_upload /path/to/experiments/*.zip
The debug logs are sent to /tmp/comet.debug.log. This log will show details of all the steps in the process. If you still have problems, share this file with us using the Comet Slack channel.
comet optimize¶
The comet optimize is a utility for running the Comet optimizer in parallel or in serial. The format of the command line is:
$ comet optimize [options] [PYTHON_SCRIPT] OPTIMIZER
where OPTIMIZER is a JSON file, or an optimizer ID.
PYTHON_SCRIPT is a regular Python file that takes an optimizer config file, or optimizer ID. If PYTHON_SCRIPT is not included, then an optimizer is created and the optimizer ID is displayed.
Positional arguments:
- PYTHON_SCRIPT - the name of the script to run.
- OPTIMIZER - optimizer JSON file or optimizer ID.
Optional arguments:
-j PARALLEL, --parallel PARALLEL
Number of parallel runs
-t TRIALS, --trials TRIALS
Number of trials per parameter configuration
-e EXECUTABLE, --executable EXECUTABLE
Run using an executable other than Python
-d DUMP, --dump DUMP Dump the parameters to given file name
Note that comet optimize requires having your COMET_API_KEY pre-configured in one of the many ways possible, for example in an environment variable, or in your .comet.config file.
Examples of calling comet optimize:
$ export COMET_API_KEY=<Your API Key>
$ export COMET_OPTIMIZER_ID=$(comet optimize opt.json)
$ comet optimize script.py opt.json
$ comet optimize -j 4 script.py opt.json
To use an executable other than Python, use -e, as follows:
$ comet optimize -e "run-on-cluster.sh" script.py opt.json
There are scenarios where you dedicate particular GPUs for particular processes (or similar logic). To that end, use the following environment variables:
COMET_OPTIMIZER_PROCESS_JOBS: Total number of parallel jobs (referred to asj)COMET_OPTIMIZER_PROCESS_ID: Current job number (starting with 0 and up to, but not including,j)
For example, you could call your script as defined above:
$ comet optimize -j 4 script.py optimize.json
In the script, you can access COMET_OPTIMIZER_PROCESS_ID and COMET_OPTIMIZER_PROCESS_JOBS and use particular GPU configurations:
# script.py
import os
# setup as per above
process_id = os.environ["COMET_OPTIMIZER_PROCESS_ID"]
process_jobs = os.environ["COMET_OPTIMIZER_PROCESS_JOBS"]
# Handle process_id's 0 through process_jobs - 1
if process_id == 0:
# handle j == 0
elif process_id == 1:
# handle j == 1
elif process_id == 2:
# handle j == 2
elif process_id == 3:
# handle j == 3
For more details, see Comet environment variables.
comet python¶
The comet python utility is used to execute a Python script and import comet_ml automatically.
Although you still need to include import comet_ml in your script, you do not need to import comet_ml before your machine learning libraries anymore.
Usage:
comet python [-h] [-p PYTHON] [-m MODULE] python_script
Positional arguments:
- python_script: the python script to launch
Optional arguments:
-p PYTHON, --python PYTHON
Which Python interpreter to use
-m MODULE, --module MODULE
Run library module as a script
comet offline¶
The comet offline utility is used to explore offline experiment archives.
Usage:
comet offline [-h] [--csv] [--section SECTION] [--level LEVEL]
[--name NAME] [--output OUTPUT] [--raw-size]
[--no-header]
archives [archives ...]
This command line displays summaries of an offline experiments:
$ comet offline *.zip
You may also display the ZIP details in a CSV (Comma-Separated Value) format. This format shows an experiment's data in a row format in the following order:
- Workspace
- Project
- Experiment
- Level
- Section
- Name
- Value
where:
- Workspace: the name of a specific workspace, or DEFAULT.
- Project: the name of a specific project, or "general".
- Experiment: the experiment key for this experiment.
- Level: detail, maximum, or minimum.
- Section: metric, param, log_other, etc.
- Name: name of metric, param, etc.
$ comet offline --csv *.zip
You may use the optional flags --level, --section, or --name to filter the rows. That is, if you use this command line:
$ comet offline --level detail *.zip
Note that when you use --level, --section, or --name then that implies --csv.
Positional arguments:
- archives: the offline experiment archives to display
Optional arguments:
--csv Output details in csv format
--section SECTION Output specific section in csv format, including param,
metric, log_other, data, etc.
--level LEVEL Output specific summary level in csv format, including
minimum, maximum, detail
--name NAME Output specific name in csv format, including items like
loss, acc, etc.
--output OUTPUT Output filename for csv format
--raw-size Use bytes for file sizes
--no-header Use this flag to suppress CSV header
comet models¶
The comet models command is used to list and download a registered model to your local file system.
Usage:
comet models download [-h]
--workspace WORKSPACE
--model-name MODEL_NAME
(--model-version MODEL_VERSION | --model-stage MODEL_STAGE)
[--output OUTPUT]
or
comet models list [-h] --workspace WORKSPACE
For downloading a model, you must provide the name of the workspace and the registered model name. You must also provide a specific version or stage.
For example, to download a registry model named "My Model" from the workspace "My Workspace" at version 1.0.0, you can run:
$ comet models download \
--workspace "My Workspace" \
--model-name "My Model" \
--model-version "1.0.0"
The registry model files will be downloaded to a directory named "model". You can choose a different output directory by using the "--output" flag.
Optional arguments:
-w WORKSPACE, --workspace WORKSPACE
The workspace name of the registry model to download
--model-name MODEL_NAME
The name of the registry model to download
--model-version MODEL_VERSION
The semantic version of the registry model to download
(for example: 1.0.0)
--model-stage MODEL_STAGE
The stage of the registry model to download (for
example: production)
--output OUTPUT The output directory where to download the model,
default to `model`