Memory optimization (was Re: Performance tuning)

Wesley Ebisuzaki Wesley.Ebisuzaki at NOAA.GOV
Thu Sep 18 14:19:33 EDT 2008


Stefan,

Stefan Gofferje wrote:
> Hi,
>
> Wesley Ebisuzaki schrieb:
>
>>   $WGRIB2 ${FILENAME} -small -60:100 43:90 -grib_out ${FILENAME}.extracted
>>
>> This command line makes the grid smaller which reduces the memory
>> requirements.  It uses
>> grib1-style packing (default).  Note that -small is still beta (please
>> test first) and you
>> will need new control files.
>>
>
> I just downloaded wgrib2 from NCEP. There is no -small option.
> Is it -ijsmall_grib or -small_grib?
>
Yes, it should have been "-small_grib"

> Currently, there is a rendering in progress. I'll upload the changes
> after the current rotation is finished and let it run with the 2300UTC
> rotation as a test.
>
> About the control file... I anyway call g2ctl after wgrib2, so that
> shouldn't be a problem, right?
>
>
Right.

   Wesley
> Terve,
> Stefan
>
> --
> Last words of a stormchaser:
> "Where is that rotation on the radar?!"
>



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