large files

From: Michael Notaro <mnotaro_at_nyahnyahspammersnyahnyah>
Date: Mon, 23 Apr 2007 11:46:22 -0500

I have 2 netcdf files, both 1.3 GB. The NCL script, openfile.ncl,
and the two
nc files are on tempest at /ptmp/notaro/testing . I also have
copies on my mac.

When I open file cru_ts_2_10.1901-2002.pre.nc on my mac and retrieve
the variable
"pre", it takes < 1 minute. However, if I open the file
cru_ts_2_10.1901-2002.pre.climo.repeat.jja.nc
and retrieve "pre" on my mac, it takes an eternity. The 2 files are
almost identical in size.

Strangely enough, on tempest, both are fast.

Any idea what is wrong? Something to do with attributes/FillValue/etc?
How can I make the slow file open faster?

Thanks,
Mike
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Received on Mon Apr 23 2007 - 10:46:22 MDT

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