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Location	Description
$HOME/public/itmdbimasdb/<machine_name>/<data_version>/<MDSPlus_tree_number>/ids_<shot><run>.* example: ~/public/imasdb/test/3/0/ids_120001.*
<machine_name> example: test	defines the equipment used for acquiring the results; "test" - is most commonly used for artificial, test data
<data_version> example: 3	Major Data Dictionary version
*<MDSPlus_tree_number>* example: 0	Contains all the *shot* and *runs* for given data tree
Shot number	Shot number is represented by first digits in database file ids_SSSSRRRR.*; there is no limit for number of digits used
Run number	Run number is represented by last four digits in database file ids_SSSSRRRR.*
ids_####.datafile, ids_####.tree, ids_####.characteristics	Contains data for given shot/run

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Code Block

shell> imasdbs -t test slices 109999 402
Tokamak: test
   Data version: 3
      UAL Backend: mdsplus
         Shot    10
             Run:     40
                 core_profiles:   25 slices (345.0 - 345.48)
                  core_sources:   25 slices (345.0 - 345.48)
                core_transport:   25 slices (345.0 - 345.48)
                   equilibrium:   25 slices (345.0 - 345.48)
               transport_solver_numerics:   25 slices (345.0 - 345.48)
                          wall:   25 slices (345.0 - 345.48)

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06.1.3.2 Dumping pulse files

To list the content (all data) of an IDS, use idsdump script

Code Block
shell> idsdump Usage: idsdump <USER> <TOKAMAK> <VERSION> <SHOT> <RUN> <IDS>

Code Block

shell> idsdump 13 1 $USER test 3 9999 2 equilibrium
class equilibrium
Attribute ids_properties
        class ids_properties
        Attribute comment:
        Attribute homogeneous_time: 1
        Attribute source:
        Attribute provider:
        Attribute creation_date:
[.......]
Attribute code
        class code
        Attribute name: 12 34 56 78 90
        Attribute commit: 12 34 56 78 90
        Attribute version: 12 34 56 78 90
        Attribute repository: 12 34 56 78 90
        Attribute parameters: 12 34 56 78 90
        Attribute output_flag
        [-819925519  678927020  358961885  263985221 -518535735 -656888240
          885898039 -949201251  187087431  189678740  306846126  536940120
         -842545485 -121858537 -867824798  103609281 -986039164 -761981263
         -444948662 -178414734   91809633  -65221224  575637439 -526052305]
Attribute time
[ 0.  1.  2.]


 1.  2.  3.  4.  5.  6.  7.  8.  9. 10. 11. 12. 13. 14. 15. 16. 17. 18.
 19. 20. 21. 22. 23. 24.]

06.1.3.2 Dumping an IDS node

Getting a subset of an IDS enables reading only a node (and its descendants if the node is a structure), making the GET operation much faster. To retrieve only requested node one should call the script idsdumppath .

Code Block
idsdumppath Usage: idsdumppath <USER> <TOKAMAK> <VERSION> <SHOT> <RUN> <IDS> <DATA_PATH>

Path syntax:

The path to requested node(s) is separated by slashes (“/path/to/node(s)”).
Nodes representing arrays must contain indexes (“/path/to/array(idx)/field”) or “Fortran style” indices (“path/to/array(x:y)/field”)
Limitation: In case of nested arrays, it is not allowed to specify set of indices for AoS ancestors. Only given values of AoS ancestors indices are handled: (e.g. “field/with/ancestorAoS(x:y)/field/AoS(n :m)” is not managed)

Data query examples:

“flux_loop(1)/flux/data(1:5)”
“bpol_probe(2:3)/field/data”
“loop(:)/current”
“time(4:-1)”
“profiles_1d(2)/grid/rho_tor_norm(2:4)”

Code Block

shell> idsdumppath  $USER test 3 9999 2 equilibrium "code"
Type: <class 'imas_3_24_0_ual_4_2_0.equilibrium.code__structure'>
----------------------------------------------
----------------------------------------------
class code
Attribute name: 12 34 56 78 90
Attribute commit: 12 34 56 78 90
Attribute version: 12 34 56 78 90
Attribute repository: 12 34 56 78 90
Attribute parameters: 12 34 56 78 90
Attribute output_flag
[-819925519  678927020  358961885  263985221 -518535735 -656888240
  885898039 -949201251  187087431  189678740  306846126  536940120
 -842545485 -121858537 -867824798  103609281 -986039164 -761981263
 -444948662 -178414734   91809633  -65221224  575637439 -526052305]

Code Block

shell> idsdumppath $USER test 3 9999 2 equilibrium "code/output_flag(0)"
Type: <class 'numpy.int32'>
----------------------------------------------
----------------------------------------------
-819925519

06.1.3.3 Copying database files directly

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Code Block

# change directory in your $HOME
cd $HOME/public/imasdb/test/3/0/

# copy data files (pay attention to *_dot_* at the end of command line!)
cp ~michalo/public/imasdb/test/3/0/ids_120002.* .
cp ~michalo/public/imasdb/test/3/0/ids_130003.* .

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06.1.3.2 Dumping pulse files

06.1.3.2 Dumping an IDS node

06.1.3.3 Copying database files directly