[Difx-users] DIFX-2.6.3 pre-release {External}

[Phillips, Chris (S&A, Marsfield)]

Thanks Walter!


From: Walter Brisken <wbrisken at nrao.edu>
Date: Saturday, 8 January 2022 at 02:12
To: Phillips, Chris (S&A, Marsfield) <Chris.Phillips at csiro.au>
Cc: difxusers <difx-users at nrao.edu>
Subject: Re: [Difx-users] DIFX-2.6.3 pre-release {External}

Hi Chris, difx-users,

I've performed a couple relatively simple tests comparing 2.6.2 to 2.6.3
at a level that I think is appropriate for the types of changes between
these two releases and all looks good.  Things I looked at are:

1. 4-channel multi-thread VDIF using dual-band (S/X), single scan

2. 16-channel Mark5B with multiple scans

3. verified phase, delay, amplitudes, and bandpasses look good

4. assessed that noise levels are comparable

5. verified that extracted pulse cal is unchanged

6. verified that data completeness (visibility and other tables) is unchanged

Note that these tests are fairly well focused on "usual" VLBA science data
sets.  They do not include:

* complex data of any kind

* geodetic analysis

* mismatched / zoom bands

* polarization conversion

* multi-phase-center

It would be good if some other folks could run some tests focusing on some
of these areas.

         -Walter

-------------------------
Walter Brisken
NRAO
Deputy Assistant Director for VLBA Development
(505)-234-5912 (cell)
(575)-835-7133 (office; not useful during COVID times)

On Thu, 4 Nov 2021, Phillips, Chris (S&A, Marsfield) via Difx-users wrote:

> Hi all
>
> Just a reminder about this - I have not heard any reports (good or bad) wrt DIFX 2.6.3
>
> I am particularly keen to hear from anyone who uses ?Double Sideband? Complex data, or LSB complex data.
>
> Cheers
> Chris
>
>> On Oct 21, 2021, at 9:37 PM, Phillips, Chris (S&A, Marsfield) via Difx-users <difx-users at listmgr.nrao.edu> wrote:
>>
>> Hi all,
>>
>> DIFX-2.6.3 is close to being available. I would urge anyone who is currently using a 2.6.x version of DIFX to try installing 2.6.3 in the next 2 weeks and check it works for you.
>>
>> If you are unsure how to make such a comparison, please send a message to this mailing list and ask for suggestions.
>>
>> Changes (not guaranteed to be comprehensive):
>>
>> - Complex data lower sideband fixes (all forms of complex data should work now, knock on wood).
>> - Haystack/ehtc updates from Geoff
>> - hops updates
>> - py3 tweaks,
>> - sites/MPIfR updates
>> - vex library compile updates (mostly OS X related)
>> - Variety of minor bug fixes
>> - Updated genipppc for latest IPP version
>>
>>
>> Please test and report back before Friday 5th November. As this stage I would consider the branch in a slushy freeze state. Please do not add new features etc, but we will fix any bugs found. I would like to freeze the code on Monday 8th November (Australian time!) if no problems are found.
>>
>> Thanks
>> Chris
>>
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>
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