[CD-HIT] clustering nt database

[Ryan Golhar]

Hi,

How do I go about clustering the nt database?

When I run

cd-hit-est -i /usr/local/ncbi/db/nt -o /tmp/nt90 -c 0.90 -n 8

I get the error:

Fatal Error
Too long sequence found, enlarge Macro MAX_SEQ

Program halted !!

What do I enlarge MAX_SEQ to?