[daip] nchav, chinc in TVFLG
Eric Greisen
egreisen at nrao.edu
Sun Jul 6 17:32:20 EDT 2008
Lynn D. Matthews wrote:
> I am experiencing some problems trying to use the NCHAV and CHINC options
> in TVFLG.
>
> For example, if I attempt to load every 10th channel to the TV by setting
> BCHAN 1; ECHAN 0; NCHAV 1; CHINC 10, this results in the messages:
>
> wrest > TVFLG1: Task TVFLG (release of 31DEC08) begins
> wrest > TVFLG1: Begin finding a list of times to enter the grid
> wrest > TVFLG1: Found 47 time intervals to grid, so
> wrest > TVFLG1: begin gridding the data to a temporary TVFLGR file
> wrest > TVFLG1: Create OCET SIO FEB.TVFLGR. 1 (MA) on disk 1 cno 516
> wrest > TVFLG1: UVGET: Using flag table version 2 to edit data
> wrest > TVFLG1: ZMI2: REQUEST FOR BYTES 4472833 THRU = 4571136 BEYOND EOF = 4472
> wrest > 832
> wrest > TVFLG1: ZMIO: OPER=WRIT LUN=22 BLKNO= 4369 8-BIT-BYTES= 98304
> wrest > TVFLG1: ZERROR: IN ZMI2 ERRNO = 22 (Invalid argument)
> wrest > TVFLG1: GTBWRT: UNABLE TO WRITE OUTPUT IMAGE FILE - ERROR 3 ROW 17
> wrest > TVFLG1: GRIDTB: ERROR 3 FROM GTBWRT
> wrest > TVFLG1: Destroyed MA image file: catno= 516 disk= 1
> wrest > TVFLG1: Purports to die of UNNATURAL causes
> wrest > TVFLG1: wrest 31DEC08 TST: Cpu= 0.1 Real= 1 IO= 64
>
> Also, if I try to create an average of 50 channels, setting BCHAN 10;
> ECHAN 59; NCHAV 50 ; CHINC 1 (or CHINC 0), the result is:
>
> wrest > TVFLG1: Create OCET SIO FEB.TVFLGR. 1 (MA) on disk 1 cno 516
> wrest > TVFLG1: UVGET: Using flag table version 2 to edit data
> wrest > TVFLG1: NO DATA SELECTED, CHECK ADVERBS
> wrest > TVFLG1: Destroyed MA image file: catno= 516 disk= 1
> wrest > TVFLG1: Purports to die of UNNATURAL causes
> wrest > TVFLG1: wrest 31DEC08 TST: Cpu= 0.2 Real= 0 IO= 74
>
> This one is solved by setting CHINC=NCHAV, although this is different from
> IMAGR, which accepts the above and sets CHINC=NCHAV automatically.
TVFLG has been fixed to set the internal ECHAN and CHINC properly to
avoid these errors. The MNJ Monday morning should fix this.
Thanks,
Eric Greisen
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