[Difx-users] Performance enhancements with zoom bands? {External}

[Michael Dutka]

Thanks for the reply, I'll try to get some more information.

On Tue, Aug 1, 2023 at 7:34 PM Adam Deller <adeller at astro.swin.edu.au>
wrote:

> Hi Mike,
>
> Can you provide more details as to the amount of slowdown, the number of
> zoom bands, etc?  If you have some example where you get a certain speed
> without zoom bands, and then you add zoom bands and it slows down
> significantly, that would be very helpful.  Normally I would expect zoom
> bands to have virtually zero impact on correlation speed, so this is
> surprising.
>
> Cheers,
> Adam
>
> On Wed, 2 Aug 2023 at 01:38, Michael Dutka via Difx-users <
> difx-users at listmgr.nrao.edu> wrote:
>
>> Hi DiFX Users,
>> We're having issues with long correlation times for experiments using
>> zoom bands.  Since we're still in the process of transitioning to VGOS for
>> geodetic observing we're attempting to correlate data from VGOS stations
>> and Legacy S/X antennas still in order to have good coverage so zoom bands
>> are a must. I was wondering if there were any tricks that people have
>> discovered that would enhance the correlation speed of zoom bands?  Do
>> later versions of DiFX (like 2.8.1) handle these better?  Or are there some
>> more optimal ways to set up the machines and threads file?
>> -Mike
>>
>>
>> --
>> Dr. Michael S. Dutka
>> US Navy (civilian)
>> USNO Phone Number- 202-762-0242
>> Cell- 301-996-3588
>>
>> _______________________________________________
>> Difx-users mailing list
>> Difx-users at listmgr.nrao.edu
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>>
>
>
> --
> !=============================================================!
> Prof. Adam Deller
> Centre for Astrophysics & Supercomputing
> Swinburne University of Technology
> John St, Hawthorn VIC 3122 Australia
> phone: +61 3 9214 5307
> fax: +61 3 9214 8797
> !=============================================================!
>


-- 
Dr. Michael S. Dutka
US Navy (civilian)
USNO Phone Number- 202-762-0242
Cell- 301-996-3588
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