Multi-tile virtual machines with boundary switch configuration

A method of operating a reconfigurable data processor including an array of configurable units having a plurality of tiles and a bus system connected to the array and including boundary switches on tile boundaries, the method comprising:

• loading, by a configuration controller, a configuration file for the reconfigurable data processor;
• and
• forming a virtual machine across multiple tiles that is isolated from other sets of configurable units by setting, based on the configuration file, the boundary switches to partition the array into sets of configurable units spanning one or more tiles.

A non-transitory computer-readable medium storing instructions that, when executed by a configuration controller of a reconfigurable data processor including an array of configurable units having a plurality of tiles and a bus system connected to the array and with boundary switches on tile boundaries, cause the configuration controller to:

• load a configuration file for the reconfigurable data processor;
• form a virtual machine across multiple tiles isolated from other sets of configurable units by setting, based on the configuration file, the boundary switches to partition the array into sets of configurable units spanning one or more tiles.