Technical Support Forum Index
Technical Support Forum
Access ChemAxon scientists and developers here. For registration and login issues contact website support.
ERROR: JChem has run out of memory when trying to cache chem
To watch this topic for replies  Register (enables digests) or give email address:
Reply to topic
Display posts from previous:   
    View previous topic :: View next topic    
Author Message
sbar-haim

Joined: 14 Jan 2009
Posts: 8

View user's profile

Back to top
Link to postPosted: Sun May 17, 2009 12:48 pmPost subject: ERROR: JChem has run out of memory when trying to cache chem Reply with quote

Working on a local database of several SDF's (total of ~1M compounds), I get the error above.

Closing IJC and re-opening it lets the query run without the error.

Making the query more general (retrieves more results) causes it to crash again with the same error.

What is the cause of the problem and how can I fix it?




 Filename: ijc_memory_error2.JPG    Filesize: 29.33 KB    Viewed: 1550 Time(s)
 Description:  
ijc_memory_error2.JPG
tdudgeon
ChemAxon personnel
Joined: 05 Oct 2004
Posts: 1673

View user's profile
Visit poster's website

Back to top
Link to postPosted: Sun May 17, 2009 12:54 pmPost subject: Reply with quote

JChem searches use a in-memory cache of the chemcial hashed fingerprints to allow rapid searching. The amount of memory this consumes is proportional to the size of the structure tables that JChem is searching.

Instant JChem in defualt configuration is set up to allow searching of several hundreds of thousands of structures, but when you go above this level you will need to allocate extra memory to Instant JChem.

Do this using Tools -> Options. Go to the Miscellanous section and then the startup settings. Increase the Maximumn suze property. See here for more information:
http://www.chemaxon.com/instantjchem/ijc_latest/docs/user/help/htmlfiles/tips_and_tricks/memory_usage.html

Tim

Reply to topic
Page 1 of 1


To watch this topic for replies   Register (enables digests) or give email address  
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum