[daip] signal 11 abort during CALIB

[Eric Greisen]

Andy Biggs wrote:
> Hi. I'm currently self-calibrating my GMRT data with a set of 86 maps made in DO3DIMAG mode. This worked fine at first, but today it is failing and the reason appears to be something to do with the gridded subtraction. The first self-cal naturally used this, but in the most recent maps, CALIB by default tries to do this with gridded subtraction. All appears normal at first, with the first 32 maps listed in the MSGSRV. However, after a while, the program quits with a "signal 11" abort. The message server output is appended below.
> 
> I also tried not applying the calibration in CALIB, but that made no difference. I've just run CALIB with (the presumably slower) CMETHOD='DFT' and that works. Is there something that I should look for that's specific to my data that might trigger such a problem?
> 
> By the way, I just noticed that my host is referred to as "localhost" in the MSGSRV. However, this is a Linux box and not a laptop. Might I have done something wrong during the install?
> 
> Thanks,
> 
> Andy
> 
> localh> CALIB1: Task CALIB  (release of 31DEC11) begins
> localh> CALIB1: Using MULTI . SPLAT . 4  Disk= 1 Usid= 4001
> localh> CALIB1: UVGET: Using flag table version   1 to edit data
> localh> CALIB1: Selecting, editing and calibrating the data
> localh> CALIB1: Using Clean Component self-cal source model
> localh> CALIB1: SETGDS: imaging done with reprojected tangent point(s)
> localh> CALIB1: NO FLUX FOUND FOR CALIBRATOR SOURCE IN SU TABLE
> localh> CALIB1: MODEL WILL USE THE FLUX CONTAINED IN IT ONLY
> localh> CALIB1: THE USE OF GETJY AFTER THIS WILL BE INCORRECT
> localh> CALIB1: FACSET: 1.090242 Jy found from 2788 components
> localh> CALIB1: Divide data by model - first compute model by summing
> localh> CALIB1: QINIT: did a GET  of    132839 Kwords, OFF       -482839829
> localh> CALIB1: ALGMEM field    1 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field    2 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field    3 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field    4 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field    5 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field    6 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field    7 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field    8 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field    9 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field   10 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field   11 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field   12 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field   13 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field   14 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field   15 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field   16 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field   17 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field   18 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field   19 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field   20 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field   21 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field   22 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field   23 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field   24 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field   25 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field   26 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field   27 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field   28 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field   29 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field   30 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field   31 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ALGMEM field   32 Ipol gridded model subtraction chns    1-   64
> localh> CALIB1: ZABORS: signal 11 received
> localh> CALIB1: ABORT!
> 
> 
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This is a particularly difficult sort of thing to debug given that CALIB 
is run with many more facets than this and does not abort.  I suspect I 
will have to have all of your images and uv data to debug and also to 
know what size you have set your max AP (verb SETMAXAP).  Before we go 
there, can you look to see what you have currently set and perhaps try 
something larger?

Eric Greisen