Page History

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Documentation of all others HLIs is available in the User guide available from this page: https://confluence.iter.org/display/IMP/Integrated+Modelling+Home+Page

open

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create

Creating a new Data Entry using the MDS+ backend consists in creating a new pulse file on disk.  Therefore, you need to have write permissions for the database specified in the create() command.

So, let's first create a new database belonging to the current user.

From a new shell, execute the following command:

module load IMAS
imasdb data_access_tutorial

Now, the following code will create a new MDS+ pulse file for shot=

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15000, run=

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1 in the '

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data_access_tutorial' database of the current user

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:

import imas
import getpass
from imas import imasdef
#creates the Data Entry object 'data_entry' associated  to the pulse file with shot=5417815000, run=01, belonging to database 'westpcss_tutorial' of the current user 'g2lfleur', using the MDS+ backend
data_entry = imas.DBEntry(imasdef.MDSPLUS_BACKEND, 'westdata_access_tutorial, 5417815000, 01, user_name=’g2lfleur’getpass.getuser())
#opens#creates the pulse file associated to the Data Entry object 'data_entry' previously created
data_entry.opencreate() 

create

Creating a new Data Entry using the MDS+ backend consists in creating a new pulse file on disk.  Therefore, you need to have write permissions for the database specified in the create() command.

So, let's first create a new database belonging to the current user.

From a new shell, execute the following command:

module load IMAS

imasdb pcss_tutorial

#close the pulse file associated to the 'data_entry' object
data_entry.close() 	

The pulse file has been created at location ~/public/imasdb/data_access_tutorial/3/0:

$ ls -alh ~/public/imasdb/data_access_tutorial/3/0
total 78M
drwxrwsr-x 2 fleuryl fleuryl 4.0K Aug 31 10:09 .
drwxrwsr-x 12 fleuryl fleuryl 4.0K Aug 31 10:09 ..
-rw-rw-r-- 1 fleuryl fleuryl 42M Aug 31 10:09 ids_150000001.characteristics
-rw-rw-r-- 1 fleuryl fleuryl 37 Aug 31 10:09 ids_150000001.datafile
-rw-rw-r-- 1 fleuryl fleuryl 36M Aug 31 10:09 ids_150000001.tree

open

The following code opens the existing MDS+ pulse file created previously Now, the following code will create a new MDS+ pulse file for shot=15000, run=1 in , from the 'pcssdata_access_tutorial' database of the current user:

import imas
import getpass
from imas import imasdef
#creates the Data Entry object 'data_entry' associated  to the pulse file with shot=15000, run=1, belonging to database 'pcssdata_access_tutorial' of the current user, using the MDS+ backend
data_entry = imas.DBEntry(imasdef.MDSPLUS_BACKEND, 'pcssdata_access_tutorial, 15000, 1, user_name=getpass.getuser())
#creates#opens the pulse file associated to the Data Entry object 'data_entry' previously created
data_entry.createopen() 

put/putSlice

get/getSlice

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