[Difx-users] Multi-thread 4-bit VDIF fails with 'vdifmux() failed with return code -2014' {External} {External} {External} {External} {External} {External}

[Hugh Garsden]

Thanks, I'll sort that out. For the moment it serves my purpose but I see it's not a general solution.

     Hugh
________________________________
From: Adam Deller <adeller at astro.swin.edu.au>
Sent: 02 June 2025 07:58
To: Phillips, Chris (S&A, Marsfield) <Chris.Phillips at csiro.au>
Cc: Hugh Garsden <hugh.garsden at manchester.ac.uk>; difx-users at listmgr.nrao.edu <difx-users at listmgr.nrao.edu>
Subject: Re: [Difx-users] Multi-thread 4-bit VDIF fails with 'vdifmux() failed with return code -2014' {External} {External} {External} {External} {External}

Hi Hugh,

As Chris said, the SVN codebase is frozen and provided for access to old legacy versions only. Git cloning dev (or 2.9) is where you want to be.

Walter had already said in a subsequent email, but the code in vdiffile shows a better way to set the vdifmuxchannels. See https://github.com/difx/difx/blob/dev/mpifxcorr/src/vdiffile.cpp#L548 [github.com]<https://urldefense.com/v3/__https://github.com/difx/difx/blob/dev/mpifxcorr/src/vdiffile.cpp*L548__;Iw!!PDiH4ENfjr2_Jw!GpvAEhoxND7BNhZcWFZYVTuX5iJ0JNfR9Dn4Q_ts9AcSxTYNXdmJojCBknvMjaPstU4F9r1xjcy0MHpfpm9E7UPl-8vpJdPlAw$> and the code leading up to that (that calculates nBandPerThread).

Cheers,
Adam

On Mon, 2 Jun 2025 at 09:51, Phillips, Chris (S&A, Marsfield) via Difx-users <difx-users at listmgr.nrao.edu<mailto:difx-users at listmgr.nrao.edu>> wrote:

Hi Hugh,







Note I am using DiFX-2.8.1 downloaded via SVN not git.





Don’t do that – there is no way to commit any changes back. The svn version should not be used at all



Regards

Chris

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Prof. Adam Deller
Centre for Astrophysics & Supercomputing
Swinburne University of Technology
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