12. gc-reset

This tool resets the IPU devices. For example:

gc-reset -d [device_id]

Where [device_id] is the id number returned by the gc-inventory tool. This can refer to one IPU or a group of IPUs.

12.1. Usage

12.1.1. Allowed options

`-t, --teardown-links`	Teardown IPU links
`-m, --reset-memory`	Reset tile memory and registers (for debugging)
`-d ID, --device-id ID`	Device id
`-h, --help`	Produce help message
`--version`	Version number

12.1.2. Examples

gc-reset           # reset all IPUs
gc-reset -d 0      # reset a single IPU
gc-reset -d 30 -t  # tear down a link
gc-reset -d 0 -m   # reinitialize memory and registers

12.1.3. Notes

When tearing down links, device ID is the MultiIPU group you want to untrain the links for. Typically you would want to use the biggest MultiIPU group.