AIPS NRAO AIPS HELP file for DDTSAVE in 31DEC19



As of Sun Dec 16 19:14:06 2018


DDTSAVE: Verification/timing test; see HELP DDT

INPUTS

                  Input variables
TCODE                              INIT,TEST,READ, or WRIT
TMODE                              T or M
TMASK           1.0       127.0    test selection bit mask
DDTSIZE                            SMALL,MEDIUM,LARGE,HUGE test
DDISK           1.0        35.0    Disk drive #: master UVDATA
MDISK           1.0        35.0    Disk drive #: other masters
TDISK           1.0        35.0    Disk drive #: test files
IOTAPE          1.0         9.0    Input/output tape drive #.
DDTDISK                            Disk area for READ and WRIT
EDGSKP          0.0        64.0    Pixels to skip at edges
TERSE          -1.0        99.0    > 0 => reduced output
OUTPRINT
                                   Printer disk file to save
BADDISK                            Disks to avoid
VERSION
                  Variables set and saved by DDT
INNAME
OUTNAME
INDISK                             1st input disk #
IN2DISK                            2nd input disk #
OUTDISK                            Output disk #
INTAPE                             Input tape drive #.
OUTTAPE                            Output tape drive #.
DDTFILE                            Input/output area
TNAMF                              Actual name ='DDTS','DDTM',..
ROTATE                             Image rotation in degrees
IMSIZE                             Image size
CELLSIZE                           Image cell size (arc sec)
NITER                              Number clean components
FLUX                               Expected source flux (Jy)
UVTAPER                            Taper in UV plane
ZEROSP                             0-spacing fluxes and weights
NOISE                              Noise level for VTESS
SHIFT                              Image shift x,y in arcsec
SCALR1                             Pixels/beam for VTESS
SCALR2                             VTESS number iterations
CLBOX                              Cleaning area
MINPATCH                           Min. BEAM half-width in AP.
MAXPIXEL                           Max pixels for clean search
NCOMP                              Number merged comps for CALIB
MAPDIF                             Comparison differences

HELP SECTION

DDTSAVE
Type: RUN file.
Use:  DDT performs the AIPS verification test of an AIPS system.
      See the HELP file DDT and the RUN files DDTLOAD.001 and
      DDTEXEC.001.  The purpose of this inputs file is to save
      the full set of DDT parameters and to perform bounds
      checks on the parameters and to enable the use of TPUT
      and TGET.  The DDT Help file should be used to set the
      parameters initially.

      Enter HELP DDT or EXPLAIN DDT for more details; the summary
      below leaves a lot out and may not be maintained fully.

      The Y2K test has mostly replaced the DDT test.  See HELP Y2K.

Adverbs: input by user of DDT
 TCODE    String*4      'INIT', 'TEST', 'READ', or 'WRIT'
 TMODE    String*1      'T' or 'M'
 TMASK    Scalar        test selection bit mask (1-127)
 DDTSIZE  String*8      'SMALL', 'MEDIUM', 'LARGE' test
 DDISK    Scalar        Disk drive # (1-9): master UVDATA
 MDISK    Scalar        Disk drive # (1-9): other masters
 TDISK    Scalar        Disk drive # (1-9): test files
 IOTAPE   Scalar        Input AND output tape drive #. (1-9)
 DDTDISK  String*8      Logical name of disk area to be used for
                        FITS-disk files in READ or WRIT instead
                        of actual magnetic tape.
                        ' ' => use magnetic tape.
 EDGSKP   Scalar        Number of pixels to skip at each edge
                        in comparing test and master images
 TERSE    Scalar        > 0 => reduced output:
                          > 0 = drops INPUTS for all tasks and
                                TPHEAD when reading tape
                          > 2 = also drops CATALOG listings
                          > 3 = also drops IMHEADER listings
                        Use 0 on all new or uncertain systems.
 OUTPRINT String*48     Disk file name in which to save the line
                        printer output.   ' ' => use scratch and
                        print immediately for interactive jobs -
                        batch jobs use OUTPRINT =
                        'PRTFIL:BATCHjjj.nnn' (jjj = job #, nnn
                        = user #).  When OUTPRINT is not blank,
                        multiple outputs are concatenated and
                        the file is not actually printed.
 BADDISK  Array         (1,3 good on CVAX)
 VERSION  String*48     OLD,NEW,OLDPSAP,NEWPSAP,LOCAL
                        (also private dirs; use | to separate)
Adverbs: used as save area by the DDT test itself
 INNAME   String*12
 OUTNAME  String*6
 INDISK   Scalar        Input disk number
 IN2DISK  Scalar        Input disk number
 OUTDISK  Scalar        Output disk number
 INTAPE   Scalar        Input tape drive #. (1-9)
 OUTTAPE  Scalar        Output image tape drive # (1-9)
 DDTFILE  Char*16       Input/output file area as :DDTs
 TNAMF    Char*4        Partial file name incl. problem size
 ROTATE   Scalar        Image rotation in degrees
 IMSIZE   Array         Image size
 CELLSIZE Array         Image cell size (arc sec)
 NITER    Scalar        Number clean components
 FLUX     Scalar        Expected source flux (Jy)
 UVTAPER  Array         Taper in UV plane
 ZEROSP   Array         Zero spacing fluxes and weights
 NOISE    Array         Noise levels for VTESS
 SHIFT    Array         Image center shift x,y in arcsec
 SCALR1   Scalar        Pixels/beam for VTESS
 SCALR2   Scalar        VTESS number iterations
 CLBOX    Array         Cleaning area
 MINPATCH Scalar        Min half width of beam portion in AP
                        minor clean
 MAXPIXEL Scalar        Max # pixels searched for clean comp.
 NCOMP    Array(16)     Number components to feed to CALIB from
                        the merged CC files
 MAPDIF   Array(5,8)    (1-2,.) => peak, mean bits
                        (3-5,.) => dx,dy,dT
                        (.,1-8) => UVMAP, UVBEAM, APCLN, APRES,
                                   MXMAP, MXBEAM, MXCLN, IVTESS

DDT runs in four different modes: (TCODE)
   INIT = starts from the original master UV dataset, and
           (re)computes master files (does ALLDEST).
           The "mask" TMASK controls which steps execute.
   TEST = re-does the INIT computation but stores the new
           files under different names and compares against
           masters. The "mask" TMASK controls which steps
           execute. TEST steps use either the TEST run output
           of the previous step (TMODE=T) or the INIT run
           output (TMODE=M).
   WRIT = write out all master files to   tape.
   READ = read  in  all master files from tape.

A binary mask controls which steps of the test execute:
   TMASK +1=>SORT,  +2=>UVMAP, +4=>APCLN,
         +8=>CALIB, +16=>MXmap,  +32=>MXclean,
         +64=>VTESS
   For example, TMASK=54 would execute UVMAP,APCLN,MXmap,and
   MXclean.

Input data files for test steps are selected by the TMODE
   adverb which has two possible values: 'T' or 'M'.
   'T' mode uses Test output from previous steps as input
   to the current task.  'M' mode uses Master input for
   all tasks.

The adverb DDTSIZE controls the size of the test performed:
   'S'    256x256 image, 2000 clean components, 8000 vis
   'M'    512x512 image, 5000 clean components, 15000 vis
   'L'    1024x1024 image, 15000 clean components, 50000 vis

Enter HELP DDT or EXPLAIN DDT for more details.

EXPLAIN SECTION




AIPS