dataset descriptionΒΆ

PathDimensionsTypeUnitsDescription

dataset_description

(alpha)

General description of the dataset (collection of all IDSs within the given database entry). Main description text to be put in ids_properties/comment

dataset_description.data_entry

(alpha)

STRUCTURE

Definition of this data entry

dataset_description.data_entry.machine

(alpha)

STR_0D

Name of the experimental device to which this data is related

dataset_description.data_entry.pulse

(alpha)

INT_0D

Pulse number

dataset_description.data_entry.pulse_type

(alpha)

STR_0D

Type of the data entry, e.g. "pulse", "simulation", ...

dataset_description.data_entry.run

(alpha)

INT_0D

Run number

dataset_description.data_entry.user

(alpha)

STR_0D

Username

dataset_description.dd_version

(alpha)

STR_0D

Version of the physics data dictionary of this dataset

dataset_description.ids_properties

(alpha)

STRUCTURE

Interface Data Structure properties. This element identifies the node above as an IDS

dataset_description.ids_properties.comment

(alpha)

STR_0D

Any comment describing the content of this IDS

dataset_description.ids_properties.creation_date

(alpha)

STR_0D

Date at which this data has been produced

dataset_description.ids_properties.homogeneous_time

(alpha)

INT_0D

This node must be filled (with 0, 1, or 2) for the IDS to be valid. If 1, the time of this IDS is homogeneous, i.e. the time values for this IDS are stored in the time node just below the root of this IDS. If 0, the time values are stored in the various time fields at lower levels in the tree. In the case only constant or static nodes are filled within the IDS, homogeneous_time must be set to 2

dataset_description.ids_properties.name

(alpha)

STR_0D

User-defined name for this IDS occurrence

dataset_description.ids_properties.occurrence

INT_0D

dataset_description.ids_properties.occurrence_type

(alpha)

STRUCTURE

Type of data contained in this occurrence
1) reconstruction : Equilibrium reconstruction
2) prediction_fixed : Equilibrium prediction, fixed boundary
3) prediction_free : Equilibrium prediction, free boundary
4) mapping : Used for mapping equilibrium results from one grid type / resolution to another, or for including variables not present in the first set such as the calculation of magnetic field of other derived parameters

dataset_description.ids_properties.occurrence_type.description

(alpha)

STR_0D

Verbose description

dataset_description.ids_properties.occurrence_type.index

(alpha)

INT_0D

Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index.

dataset_description.ids_properties.occurrence_type.name

(alpha)

STR_0D

Short string identifier

dataset_description.ids_properties.plugins

(alpha)

STRUCTURE

Information about the plugins used to write/read this IDS. This structure is filled automatically by the Access Layer at GET/PUT time, no need to fill it via a user program.

dataset_description.ids_properties.plugins.infrastructure_get

(alpha)

STRUCTURE

Plugin infrastructure used to GET the data

dataset_description.ids_properties.plugins.infrastructure_get.commit

(alpha)

STR_0D

Unique commit reference of software

dataset_description.ids_properties.plugins.infrastructure_get.description

(alpha)

STR_0D

Short description of the software (type, purpose)

dataset_description.ids_properties.plugins.infrastructure_get.name

(alpha)

STR_0D

Name of software used

dataset_description.ids_properties.plugins.infrastructure_get.repository

(alpha)

STR_0D

URL of software repository

dataset_description.ids_properties.plugins.infrastructure_get.version

(alpha)

STR_0D

Unique version (tag) of software

dataset_description.ids_properties.plugins.infrastructure_put

(alpha)

STRUCTURE

Plugin infrastructure used to PUT the data

dataset_description.ids_properties.plugins.infrastructure_put.commit

(alpha)

STR_0D

Unique commit reference of software

dataset_description.ids_properties.plugins.infrastructure_put.description

(alpha)

STR_0D

Short description of the software (type, purpose)

dataset_description.ids_properties.plugins.infrastructure_put.name

(alpha)

STR_0D

Name of software used

dataset_description.ids_properties.plugins.infrastructure_put.repository

(alpha)

STR_0D

URL of software repository

dataset_description.ids_properties.plugins.infrastructure_put.version

(alpha)

STR_0D

Unique version (tag) of software

dataset_description.ids_properties.plugins.node

(alpha)

[1...N]

STRUCT_ARRAY

Set of IDS nodes for which a plugin has been applied

dataset_description.ids_properties.plugins.node[:].get_operation

(alpha)

[1...N]

STRUCT_ARRAY

Plugins actually used to read back a node (potentially, multiple plugins can be applied, listed in reverse order of application). This information is filled by the plugin infrastructure during the GET operation.

dataset_description.ids_properties.plugins.node[:].get_operation[:].commit

(alpha)

STR_0D

Unique commit reference of software

dataset_description.ids_properties.plugins.node[:].get_operation[:].description

(alpha)

STR_0D

Short description of the software (type, purpose)

dataset_description.ids_properties.plugins.node[:].get_operation[:].name

(alpha)

STR_0D

Name of software used

dataset_description.ids_properties.plugins.node[:].get_operation[:].parameters

(alpha)

STR_0D

List of the code specific parameters in XML format

dataset_description.ids_properties.plugins.node[:].get_operation[:].repository

(alpha)

STR_0D

URL of software repository

dataset_description.ids_properties.plugins.node[:].get_operation[:].version

(alpha)

STR_0D

Unique version (tag) of software

dataset_description.ids_properties.plugins.node[:].path

(alpha)

STR_0D

Path of the node within the IDS, following the syntax given in the link below. If empty, means the plugin applies to the whole IDS.

dataset_description.ids_properties.plugins.node[:].put_operation

(alpha)

[1...N]

STRUCT_ARRAY

Plugins used to PUT a node (potentially, multiple plugins can be applied, if so they are listed by order of application)

dataset_description.ids_properties.plugins.node[:].put_operation[:].commit

(alpha)

STR_0D

Unique commit reference of software

dataset_description.ids_properties.plugins.node[:].put_operation[:].description

(alpha)

STR_0D

Short description of the software (type, purpose)

dataset_description.ids_properties.plugins.node[:].put_operation[:].name

(alpha)

STR_0D

Name of software used

dataset_description.ids_properties.plugins.node[:].put_operation[:].parameters

(alpha)

STR_0D

List of the code specific parameters in XML format

dataset_description.ids_properties.plugins.node[:].put_operation[:].repository

(alpha)

STR_0D

URL of software repository

dataset_description.ids_properties.plugins.node[:].put_operation[:].version

(alpha)

STR_0D

Unique version (tag) of software

dataset_description.ids_properties.plugins.node[:].readback

(alpha)

[1...N]

STRUCT_ARRAY

Plugins to be used to read back a node (potentially, multiple plugins can be applied, listed in reverse order of application)

dataset_description.ids_properties.plugins.node[:].readback[:].commit

(alpha)

STR_0D

Unique commit reference of software

dataset_description.ids_properties.plugins.node[:].readback[:].description

(alpha)

STR_0D

Short description of the software (type, purpose)

dataset_description.ids_properties.plugins.node[:].readback[:].name

(alpha)

STR_0D

Name of software used

dataset_description.ids_properties.plugins.node[:].readback[:].parameters

(alpha)

STR_0D

List of the code specific parameters in XML format

dataset_description.ids_properties.plugins.node[:].readback[:].repository

(alpha)

STR_0D

URL of software repository

dataset_description.ids_properties.plugins.node[:].readback[:].version

(alpha)

STR_0D

Unique version (tag) of software

dataset_description.ids_properties.provenance

(alpha)

STRUCTURE

Provenance information about this IDS

dataset_description.ids_properties.provenance.node

(alpha)

[1...N]

STRUCT_ARRAY

Set of IDS nodes for which the provenance is given. The provenance information applies to the whole structure below the IDS node. For documenting provenance information for the whole IDS, set the size of this array of structure to 1 and leave the child "path" node empty

dataset_description.ids_properties.provenance.node[:].path

(alpha)

STR_0D

Path of the node within the IDS, following the syntax given in the link below. If empty, means the provenance information applies to the whole IDS.

dataset_description.ids_properties.provenance.node[:].sources

(alpha)

[1...N]

STR_1D

List of sources used to import or calculate this node, identified as explained below. In case the node is the result of of a calculation / data processing, the source is an input to the process described in the "code" structure at the root of the IDS. The source can be an IDS (identified by a URI or a persitent identifier, see syntax in the link below) or non-IDS data imported directly from an non-IMAS database (identified by the command used to import the source, or the persistent identifier of the data source). Often data are obtained by a chain of processes, however only the last process input are recorded here. The full chain of provenance has then to be reconstructed recursively from the provenance information contained in the data sources.

dataset_description.ids_properties.provider

(alpha)

STR_0D

Name of the person in charge of producing this data

dataset_description.ids_properties.source

(obsolescent)

STR_0D

Source of the data (any comment describing the origin of the data : code, path to diagnostic signals, processing method, ...). Superseeded by the new provenance structure.

dataset_description.ids_properties.version_put

(alpha)

STRUCTURE

Version of the access layer package used to PUT this IDS

dataset_description.ids_properties.version_put.access_layer

(alpha)

STR_0D

Version of Access Layer used to PUT this IDS

dataset_description.ids_properties.version_put.access_layer_language

(alpha)

STR_0D

Programming language of the Access Layer high level API used to PUT this IDS

dataset_description.ids_properties.version_put.data_dictionary

(alpha)

STR_0D

Version of Data Dictionary used to PUT this IDS

dataset_description.imas_version

(alpha)

STR_0D

Version of the IMAS infrastructure used to produce this data entry. Refers to the global IMAS repository which links to versions of every infrastructure tools

dataset_description.parent_entry

(alpha)

STRUCTURE

Definition of the parent data entry, if the present data entry has been generated by applying a given workflow to a unique parent entry

dataset_description.parent_entry.machine

(alpha)

STR_0D

Name of the experimental device to which this data is related

dataset_description.parent_entry.pulse

(alpha)

INT_0D

Pulse number

dataset_description.parent_entry.pulse_type

(alpha)

STR_0D

Type of the data entry, e.g. "pulse", "simulation", ...

dataset_description.parent_entry.run

(alpha)

INT_0D

Run number

dataset_description.parent_entry.user

(alpha)

STR_0D

Username

dataset_description.pulse_time_begin

(alpha)

STR_0D

Date and time (UTC) at which the pulse started on the experiment, expressed in a human readable form (ISO 8601) : the format of the string shall be : YYYY-MM-DDTHH:MM:SSZ. Example : 2020-07-24T14:19:00Z

dataset_description.pulse_time_begin_epoch

(alpha)

STRUCTURE

Time at which the pulse started on the experiment, expressed in Unix Epoch time. Temporarily represented as two integers, since for the moment IMAS is missing 64bits long integers to represent epoch time with nanoseconds resolution

dataset_description.pulse_time_begin_epoch.nanoseconds

(alpha)

INT_0D

Elapsed nanoseconds since the time in seconds indicated above

dataset_description.pulse_time_begin_epoch.seconds

(alpha)

INT_0D

Elapsed seconds since the Unix Epoch time (01/01/1970 00:00:00 UTC)

dataset_description.pulse_time_end_epoch

(alpha)

STRUCTURE

Time at which the pulse ended on the experiment, expressed in Unix Epoch time. Temporarily represented as two integers, since for the moment IMAS is missing 64bits long integers to represent epoch time with nanoseconds resolution

dataset_description.pulse_time_end_epoch.nanoseconds

(alpha)

INT_0D

Elapsed nanoseconds since the time in seconds indicated above

dataset_description.pulse_time_end_epoch.seconds

(alpha)

INT_0D

Elapsed seconds since the Unix Epoch time (01/01/1970 00:00:00 UTC)

dataset_description.simulation

(alpha)

STRUCTURE

Description of the general simulation characteristics, if this data entry has been produced by a simulation. Several nodes describe typical time-dependent simulation with a time evolution as the main loop

dataset_description.simulation.comment_after

(alpha)

STR_0D

Comment made at the end of a simulation

dataset_description.simulation.comment_before

(alpha)

STR_0D

Comment made when launching a simulation

dataset_description.simulation.time_begin

(alpha)

FLT_0D (uncertain)

s

Start time

dataset_description.simulation.time_begun

(alpha)

STR_0D

UTC

Actual wall-clock time simulation started

dataset_description.simulation.time_current

(alpha)

FLT_0D (uncertain)

s

Current time of the simulation

dataset_description.simulation.time_end

(alpha)

FLT_0D (uncertain)

s

Stop time

dataset_description.simulation.time_ended

(alpha)

STR_0D

UTC

Actual wall-clock time simulation finished

dataset_description.simulation.time_restart

(alpha)

FLT_0D (uncertain)

s

Time of the last restart done during the simulation

dataset_description.simulation.time_step

(alpha)

FLT_0D (uncertain)

s

Time interval between main steps, e.g. storage step (if relevant and constant)

dataset_description.simulation.workflow

(alpha)

STR_0D

Description of the workflow which has been used to produce this data entry (e.g. copy of the Kepler MOML if using Kepler)

dataset_description.time

(alpha)

[1...N]

FLT_1D_TYPE

s

Generic time