Runs

Best practices to organize hyperparameter searches

When you run many hyperparameter searches, tag your runs so you can group and find related experiments later. Tag runs i …

Can you group runs by tags?

A run can have multiple tags, so grouping by tags isn’t supported. Instead, add a value to the config object for these r …

How can I change how frequently to log system metrics?

To configure the frequency to log system metrics, set _stats_sampling_interval to a number of seconds, expressed as a fl …

How can I change the colors of each run in the same group?

You can’t change the colors of individual runs within a group. All runs in the same group share a common color.

How can I delete multiple runs in bulk instead of one at a time?

From the Runs tab in your Workspace, select the checkbox next to each run to delete, then click Delete. To filter runs b …

How can I disable logging of system metrics to W&B?

To disable logging of system metrics, set _disable_stats to True:

How can I log a metric that doesn't change over time such as a final evaluation accuracy?

To record a single, unchanging value such as a final evaluation accuracy, log it once with run.log. For example, run.log …

How can I log additional metrics after a run completes?

To add metrics to a run that has already finished, W&B offers several approaches depending on the complexity of your wor …

How can I recover deleted runs?

Learn how to recover recently deleted runs in the W&B App for up to 7 days.

How do I fix `CommError, Run does not exist` during a sweep?

If you see both CommError, Run does not exist and ERROR Error uploading during a sweep, the most likely cause is that yo …

How do I fix the error `resume='must' but run ([RUN-ID]) doesn't exist`?

If you encounter the error resume=‘must’ but run ( RUN-ID ) doesn’t exist, the run you’re attempting to resume doesn’t e …

How do I log runs launched by continuous integration or internal tools?

To launch automated tests or internal tools that log to W&B, create a Service Account on the team settings page. This ac …

How do I resolve permission errors when logging a run?

Permission errors when logging a run typically indicate a mismatch between your code, your credentials, or your deployme …

How many runs can I create per project?

For optimal performance, limit each project to approximately 10,000 runs.

Is it possible to change the group assigned to a run after completion?

You can change the group assigned to a completed run using the API. This feature doesn’t appear in the web UI. To update …

Is it possible to move a run from one project to another?

You can move a run from one project to another to reorganize your work, consolidate related experiments, or relocate a r …

Why are steps missing from a CSV metric export?

Export limits can prevent you from exporting the entire run history as a CSV or with the run.history API. To access the …