[daip] FITLD aborts on large FITS-IDI file

[Walter Brisken]

At the VLBA test meeting yesteday I mentioned a failure mode of FITLD when 
attempting to load large FITS-IDI files.  The size threshhold for failure 
may depend on the value of DOUVCOMP.

for DOUVCOMP=0, a FITS-IDI file of size 2894800320 was successfully 
loaded, but one of size 3649544640 fails.  For DOUVCOMP=1, no failure was 
seen on this file, the largest one I have handy.

The large input file that failed for DOUVCOMP=0 is: 
/home/swc/difx/projects/bp147/BP147.0.FITS

There are other large FITS-IDI files of varying size in the same 
directory.

The failure results in the following message:

FITLD1: Create COMP0-0     .UVDATA.   1 (UV)  on disk  1  cno    3
FITLD1: Sky frequencies (MHz) before re-ordering occurs:
FITLD1: Incoming FREQID #   1
FITLD1: 22230.94
FITLD1: CL table interval set at  1.00 minutes
FITLD1:            !!!!!!!!!!!
FITLD1: Digital corrections being performed
FITLD1: Total power corrected even if no zero-padding
FITLD1:            !!!!!!!!!!!
FITLD1: Current file has   441517 visibilities
FITLD1: File ref. freq:    22230.94 MHz
FITLD1: ZEXPND: INVALID RECORD REQUEST = ******
FITLD1: FILE EXPANSION FAILED - QUITTING
FITLD1: ZMI2: REQUEST FOR BYTES 1 THRU = 394240 BEYOND EOF = 364544
FITLD1: ZMIO: OPER=WRIT LUN=16 BLKNO=           1 8-BIT-BYTES=394240
FITLD1: ZERROR: IN ZMI2 ERRNO = 22 (Invalid argument)
FITLD1: ZWAIT: ZWAI2 RETURNS ERROR 3 FOR LUN = 16 BUFFER = 1
FITLD1: ZERROR: IN ZWAI2  ERRNO = 22 (Invalid argument)
FITLD1: GET3DT: ERROR   3 FLUSHING UV DATA FILE
FITLD1: UT2UV: ERROR   3 TRANSLATING UV BINARY TABLE
FITLD1: Image=MULTI     (UV)         Filename=COMP0-0     .UVDATA.   1
FITLD1: Telescope=VLBA               Receiver=VLBA
FITLD1: Observer=BP147               User #= 2179
FITLD1: Observ. date=22-JUN-2008     Map date=18-JUL-2008
FITLD1: # visibilities     10000     Sort order  TB
FITLD1: Rand axes: UU-L-SIN  VV-L-SIN  WW-L-SIN  TIME1  BASELINE
FITLD1:            SOURCE  FREQSEL  INTTIM  GATEID  CORR-ID
FITLD1: ----------------------------------------------------------------
FITLD1: Type    Pixels   Coord value     at Pixel     Coord incr   Rotat
FITLD1: COMPLEX      3   1.0000000E+00       1.00  1.0000000E+00    0.00
FITLD1: STOKES       2  -1.0000000E+00       1.00 -1.0000000E+00    0.00
FITLD1: FREQ       512   2.2230940E+10       1.00  1.5625000E+04    0.00
FITLD1: IF           1   1.0000000E+00       1.00  1.0000000E+00    0.00
FITLD1: RA           1    00 00 00.000       1.00       0.000000    0.00
FITLD1: DEC          1    00 00 00.000       1.00       0.000000    0.00
FITLD1: ----------------------------------------------------------------

Please let me know if more information is needed.

-Walter