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NCI Metathesaurus contains many individual vocabularies some of which are large vocabularies in and of themselves. It requires many hours to load and index. It can require 36 hours on a multiprocessor machine with 6 gb plus memory. The total time to load the NCI MetaThesaurus will vary depending on machine, memory, and disk speed. Because this loader uses a batch loading strategy it is less dependent on memory, but some users will see 3 or 4 day load times with average multiprocessor processing power. While the batch loading process itself is not heavily memory dependent, the creating the index following the load will require at least 3 GB of memory. |
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1 | Using a web or ftp client go to the URL: ftp://ftp1.nci.nih.gov/pub/cacore/EVS/ | ||||||
2 | Select the version of NCI Metathesaurus RRF you wish to download. Save the file to a directory on your machine. | ||||||
3 | Extract the RRF files from the zip download and save in a directory on your machine. This directory will be referred to as NCI_METATHESAURUS_DIRECTORY. RELASE_INFO.RRF is required to be present for the load utility to work. | ||||||
4 | Using the LexEVS utilities load the NCI Thesaurus:
For Windows installation use the following command:
For Linux installation use the following command:
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