[gradsusr] GrADS performance vs alternatives?

[Brian Gaze]

Thanks David.

The data is stored locally on high speed SSDs.

Any tips with scripting? My professional background is software development
so I'm reasonably comfortable working with grads script. However, I've not
found many tweaks that make a great deal of difference in terms of
performance.

Thanks

Brian


On Fri, 8 Apr 2022 at 17:08, <gradsusr-request at gradsusr.org> wrote:

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>    1. Re: GrADS performance vs alternatives? (Davide Sacchetti)
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> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 7 Apr 2022 18:06:10 +0200
> From: Davide Sacchetti <davide.sacchetti at arpal.liguria.it>
> To: GrADS Users Forum <gradsusr at gradsusr.org>
> Subject: Re: [gradsusr] GrADS performance vs alternatives?
> Message-ID: <51862359-4676 at mbox.arpal.liguria.it>
> Content-Type: text/plain; charset="utf-8"
>
> the speed may depend on cpu but also on where your data is stored (are
> your datasets available locally?) and how your script is written ...
> Upon my knowloedge GrADS IS fast, it may be the fastest sw you can find
> everywhere ...
> Davide
>
>
> Dott. Davide Sacchetti
> Dipartimento Stato dell?Ambiente e Tutela dai Rischi Naturali
> U.O. Clima Meteo Idro
> Viale Brigate Partigiane 2, 16129 Genova (I)
> tel: +39 0106437535
> mail:?davide.sacchetti at arpal.liguria.it? web:?
> https://www.arpal.liguria.it/homepage/meteo.html
>
>
>
>  Da:   Brian Gaze <brianw.gaze at googlemail.com>
>  A:   <gradsusr at gradsusr.org>
>  Inviato:   07/04/2022 17:07
>  Oggetto:   [gradsusr] GrADS performance vs alternatives?
>
>
>
>                  Questa ? la prima volta che ricevi un'email da questo
> mittente.         Assicurati che sia qualcuno di cui ti fidi.
>
> Hi,
>
>
>
> I've recently started generating ECMWF 50 member ensemble plots using a
> GrADS script for a large latitude - longitude range. Technically it all
> works fine, but the issue I'm having is performance. It is dependent of
> course on CPU speed, but even with a very fast processor each individual
> graph can take approx 1.5 seconds to render and save.?
>
>
> To an extent running instances on multiple cores helps, but generating a
> range of graphs (e.g. 2m temps, 850hPa temps, MSLP etc...) can take a long
> time. Perhaps 40 mins or so for a country the size of the United Kingdom.?
>
>
> Does anyone have tips for how to optimize performance in the script?
> Alternatively, is there software available which runs much faster than
> GrADS script to do the same thing??
>
>
> Thanks
>
>
> BWG
>
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