Warning

This is A PREVIEW for NEST 3.0 and NOT an OFFICIAL RELEASE! Some functionality may not be available and information may be incomplete!

music_cont_out_proxy – A device which sends continuous data from NEST to MUSIC

Description

A music_cont_out_proxy can be used to send continuous data from neurons over MUSIC to remote applications. It works in a similar fashion like the multimeter model. The user has to specify the recordable values to observe (e.g. [“V_m”]) via the record_from parameter. The target neurons are specified by a list of global neuron ids which must be passed via the “targets” parameter. The music_cont_out_proxy will be connected automatically to the specified target neurons. It is not possible to apply further changes to the list of target neurons or observed quantities once the simulation has been started for the first time.

In case of multiple recordables the data can be read out (PyNEST only) of the receiving buffer via the following access pattern:

buffer[ target_node_id_index ][ recordable_index] = buffer[ target_node_id_index * record_from.size() + recordable_index ]

For example: target_node_ids = [ 2, 5, 4 ], record_from = [“V_m”] and

we want to get “V_m” for neuron with node ID 5: buffer[ 1*1 + 0 ]

This model is only available if NEST was compiled with MUSIC.

Parameters

The following properties are available in the status dictionary:

interval

ms

Recording interval

targets

array

Global id list of neurons to be observed

port_name

string

The name of the MUSIC input port to listen to (default: cont_in)

port_width

integer

The width of the MUSIC input port

published

boolean

A bool indicating if the port has been already published with MUSIC

record_from

array

Array containing the names of variables to record from, obtained from the /recordables entry of the model from which one wants to record

See also

Device, MUSIC