spinn_front_end_common.mapping_algorithms.on_chip_router_table_compression package

Submodules

spinn_front_end_common.mapping_algorithms.on_chip_router_table_compression.compression module

spinn_front_end_common.mapping_algorithms.on_chip_router_table_compression.compression.mundy_on_chip_router_compression(routing_tables, transceiver, machine, app_id, system_provenance_folder, compress_only_when_needed=True, compress_as_much_as_possible=False)[source]

Load routing tables and compress then using Mundy’s algorithm

Parameters:
  • routing_tables – the memory routing tables to be compressed
  • transceiver – the spinnman interface
  • machine – the SpiNNaker machine representation
  • app_id – the application ID used by the main application
  • system_provenance_folder – the path to where to write the data
  • compress_as_much_as_possible (bool) – If False, the compressor will only reduce the table until it fits in the router space, otherwise it will try to reduce until it until it can’t reduce it any more
  • compress_only_when_needed (bool) – If True, the compressor will only compress if the table doesn’t fit in the current router space, otherwise it will just load the table
Returns:
spinn_front_end_common.mapping_algorithms.on_chip_router_table_compression.compression.pair_compression(routing_tables, transceiver, executable_finder, machine, app_id, provenance_file_path, compress_only_when_needed=False, compress_as_much_as_possible=True)[source]

Load routing tables and compress then using Pair Algorithm

See pacman/operations/router_compressors/pair_compressor.py which is the
exact same algorithm implemented in python
Parameters:
  • routing_tables – the memory routing tables to be compressed
  • transceiver – the spinnman interface
  • executable_finder –
  • machine – the SpiNNaker machine representation
  • app_id – the application ID used by the main application
  • provenance_file_path – the path to where to write the data
  • compress_as_much_as_possible (bool) – If False, the compressor will only reduce the table until it fits in the router space, otherwise it will try to reduce until it until it can’t reduce it any more
  • compress_only_when_needed (bool) – If True, the compressor will only compress if the table doesn’t fit in the current router space, otherwise it will just load the table

Module contents