[daip] [!4920]: aips - XGAUS

[Lynn D Matthews]

Lynn D Matthews updated #4920
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              Status: Open (was: Closed)

XGAUS
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           Ticket ID: 4920
                 URL: https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/4920
           Full Name: Lynn D Matthews
               Email: lmatthew at haystack.mit.edu
             Creator: User
          Department: AIPS Data Processing
       Staff (Owner): Eric Greisen
                Type: Issue
              Status: Open
            Priority: Default
      Template Group: Default
             Created: 13 May 2014 07:06 PM
             Updated: 14 May 2014 05:16 PM



I have been making progress with XGAUS, but also managed to get into more trouble. There are 3 things:

(1) If an output file is requested with DOOUT=1 (and sometimes with DOOUT=3), things crash:

CHAR  > XGAUS1: Begin writing residual image cube
CHAR  > XGAUS1: COMOFF: I DONT WORK FOR NDIM =   255
CHAR  > XGAUS1: ZMI2: DELAY 1
CHAR  > XGAUS1: ZMI2: DELAY 2
CHAR  > XGAUS1: ZMI2: REQUEST FOR BYTES 25560065 THRU = 25561088
CHAR  > XGAUS1: ZMI2: BEYOND EOF = 2048
CHAR  > XGAUS1: ZMIO: OPER=WRIT LUN=34 BLKNO=       24962 8-BIT-BYTES=  1024
CHAR  > XGAUS1: ZERROR: IN ZMI2 ERRNO = 22 (Invalid argument)
CHAR  > XGAUS1: XGAURE: ERROR   3 ON FINISH RESIDUAL IMAGE
CHAR  > XGAUS1: XGAUOU: ERROR   3 ON WRITING THE RESIDUAL IMAGE
CHAR  > XGAUS1: Destroyed MA image file: catno=    196 disk= 3
CHAR  > XGAUS1: Purports to die of UNNATURAL causes
CHAR  > XGAUS1: char         31DEC14 TST: Cpu=      15.0  Real=     210

(2) When fitting lots of components (e.g., ngaus=8) and when DOTV=1, it dies as soon as the initial fit is requested:

forrtl: severe (66): output statement overflows record, unit -5, file Internal Formatted Write
AIPS 1: TASK QUIT WITHOUT RESUMING ME

This does not occur for the same spectrum, same fit components, when using the DOTV=2 mode.

(3) Certain choices of BLC, TRC seem to trigger an error when the program goes to write the XG table. For example, 
BLC  210, 47, 48, 0
TRC 480, 80, 83, 0
leads to:
CHAR  > XGAUS1: TABIO: BAD LRNO=        1261 LIMIT        1260
CHAR  > XGAUS1: TABXG: TABIO ERROR  2

Meanwhile, it it happy if I instead use, say, TRC 480, 83, 83, 0  or TRC 480, 83, 82, 0

Lynn


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