netcdf write optimizations #19
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| ncerr = nf90_def_var(ncid, trim(fldName), NF90_FLOAT, & | ||
| (/im_dimid,jm_dimid,pfull_dimid,time_dimid/), varids(i), & | ||
| shuffle=.false.,deflate_level=ideflate,& | ||
| chunksizes=(/im,jm,1,1/),cache_size=40*im*jm); NC_ERR_STOP(ncerr) |
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Must the chunksizes be /im,jm,1,1/?
Having chunksizes of 1 performs badly. Having chunksizes that are the entire extent of the dimension can be fast for smaller sizes, but larger sizes should be broken up.
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No, I just set it to that because it seemed like the most common access pattern (reading a 2-d horizontal grid).
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Code commit in #48 |
climbfuji
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Apr 24, 2020
…_mods Bug fixes to 3D diagnostic tendencies (based on NOAA-EMC#15)
junwang-noaa
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Sep 30, 2021
Remove dynamic CCPP build (NOAA-EMC#103)
LarissaReames-NOAA
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Nov 17, 2023
* Fix for multi_gases to 32 bit compiling * Add a subroutine to read multi_gases_nml to be consistent with others * Replace rilist and cpilist with ri and cpilist for multi_gases_nml
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see #18
Included in #41