spinn_front_end_common.interface.buffer_management package

Subpackages

• spinn_front_end_common.interface.buffer_management.buffer_models package
  • Module contents
• spinn_front_end_common.interface.buffer_management.storage_objects package
  • Module contents

Module contents

class spinn_front_end_common.interface.buffer_management.BufferManager(placements, tags, transceiver, extra_monitor_cores, packet_gather_cores_to_ethernet_connection_map, extra_monitor_to_chip_mapping, machine, fixed_routes, uses_advanced_monitors, report_folder, java_caller=None)

Bases: object

Manager of send buffers.

Parameters:

• placements (Placements) – The placements of the vertices
• tags (Tags) – The tags assigned to the vertices
• transceiver (Transceiver) – The transceiver to use for sending and receiving information
• packet_gather_cores_to_ethernet_connection_map (dict(tuple(int,int), DataSpeedUpPacketGatherMachineVertex)) – mapping of cores to the gatherer vertex placed on them
• report_folder (str) – The directory for reports which includes the file to use as an SQL database.
• java_caller (JavaCaller) – Support class to call Java, or None to use python

add_receiving_vertex(vertex)

Add a vertex into the managed list for vertices which require buffers to be received from them during runtime.

Parameters:vertex (AbstractReceiveBuffersToHost) – the vertex to be managed

add_sender_vertex(vertex)

Add a vertex into the managed list for vertices which require buffers to be sent to them during runtime.

Parameters:vertex (AbstractSendsBuffersFromHost) – the vertex to be managed

clear_recorded_data(x, y, p, recording_region_id)

Removes the recorded data stored in memory.

Parameters:

• x (int) – placement x coordinate
• y (int) – placement y coordinate
• p (int) – placement p coordinate
• recording_region_id (int) – the recording region ID

get_data_by_placement(placement, recording_region_id)

Get the data container for all the data retrieved during the simulation from a specific region area of a core.

Parameters:

• placement (Placement) – the placement to get the data from
• recording_region_id (int) – desired recording data region

Returns:

an array contained all the data received during the simulation, and a flag indicating if any data was missing

Return type:

tuple(bytearray, bool)

get_data_for_placements(placements, progress=None)

Parameters:

• placements (Placements) – Where to get the data from.
• progress (ProgressBar or None) – How to measure/display the progress.

get_data_for_vertex(placement, recording_region_id)

It is no longer possible to get access to the data pointer.

Use get_data_by_vertex instead which returns the data that pointer.read_all() used to return the missing flag as before

load_initial_buffers()

Load the initial buffers for the senders using memory writes.

reset()

Resets the buffered regions to start transmitting from the beginning of its expected regions and clears the buffered out data files.

resume()

Resets any data structures needed before starting running again.

sender_vertices

The vertices which are buffered.

stop()

Indicates that the simulation has finished, so no further outstanding requests need to be processed.