Hi Andrea,

for files of this size we recommend using a database. Have you tried

    File > Import > TopBraid Composer > Import RDF Files into a new TDB

This uses a "streaming" loader that doesn't need to load the whole file into memory first.

Holger


On 20/11/2017 20:08, Andrea Giordano wrote:
Hi,
I'm trying to open the Disgen ontology of 2.95 GB with top braid. Unfortunately the load take up to 5 five minutes and finally it shows an error:
"Unhandled event loop exception - GC overhead limit excedeed".
I believed the -xmx option was too low so I have increased it from 2048 to 4096 without good results. Is it possible I have not enough memory? I have 8 GB but setting -xmx to 6144MB the system stucks itself.

It is able to open less-sized ontology like the OMIM or the HDO.

I tried on OSX 10.12 and Win10


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