Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.
Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.
On Mon, Jan 12, 2015 at 8:19 PM, Charlie Zender <zender@xxxxxxx> wrote: > NCO version 4.4.7 (and later) implement the Rew chunking algorithm: > > ncks -4 --cnk_plc=all --cnk_map=rew in.nc out.nc > > http://nco.sf.net/nco.html#cnk > The C-code is in nco_cnk.c. > > NCO only utilizes this algorithm for 3D variables. > 4D variables in the same file will not be chunked by this algorithm, > though NCO will preserve their chunking from a previous algorithm. > > We're open to suggestions on how to make this more usuable. > One idea would be to make, in NCO-speak, a chunk policy that > uses 'rew' chunk map for 3D vars, and something else for other ranks. > indeed -- a reasonable default chunking for any dimension variable would be good (even though it is, indeed, impossible to define the "best" one without knowing the use-cases) -Chris -- Christopher Barker, Ph.D. Oceanographer Emergency Response Division NOAA/NOS/OR&R (206) 526-6959 voice 7600 Sand Point Way NE (206) 526-6329 fax Seattle, WA 98115 (206) 526-6317 main reception Chris.Barker@xxxxxxxx
netcdfgroup archives: