[Difx-users] Problem in executing "vex2difx" of DiFX-2.5

[Walter Brisken]

Hi Lupin (and all users),

Please keep in mind that although we have branched DiFX-2.5, it is not yet 
released.  Please use at your own risk only until then!  We're hoping to 
announce the release in the next month or so.

-W

On Sat, 3 Jun 2017, Lupin Lin wrote:

> To whom will concern my problem,
>
> Since DiFX-2.5 was released, I am now testing the functions with this new version.
> I have successfully installed the DiFX-2.5, and I did not see any significant error in installation.
>
> When I performed the vex2difx with the trunk version, the task can smoothly be done.
> ¡X¡X
> lupin at node01:/data/lupin/test-7000> vex2difx --force -v test.7000.v2d
> Note: The vex file has no exper_nominal_start parameter defined in the EXPER section.  Making assumptions...
> Note: The vex file has no exper_nominal_stop parameter defined in the EXPER section.  Making assumptions...
> 1 job groups created:
>  Group: scans 124-0542 - 124-0542 = mjd(57877.2375,57877.2375579)
> Job test_7000
>  mjd(57877.2375,57877.2375579)
>  duty cycle = 1
>  scans = 124-0542
>  Antenna list: G1 G2
>  size = 0 bytes
>
> 1 job(s) created.
> ¡X¡X
>
> But if I switched to DiFX-2.5, I gained an error message and no related calc and input files can be obtained.
> ¡X¡X
> lupin at node02:/data/lupin/test-7000> vex2difx --force -v -v test.7000.v2d
> Checking test.7000.v2d for proper line termination
> Checking /data/lupin/test-7000/test.vex.obs for proper line termination
> Note: The vex file has no exper_nominal_start parameter defined in the EXPER section.  Making assumptions...
> Note: The vex file has no exper_nominal_stop parameter defined in the EXPER section.  Making assumptions...
> Vex:
> 1 sources:
> Source M87
>  name=M87
>  ra=3.27609
>  dec=0.216266
> 1 scans:
> Scan 124-0542
>  timeRange=mjd(57877.2375,57877.2375579)
>  mode=MINE
>  source=M87
>  size=0 bytes
>  G1 range=mjd(57877.2375,57877.2375579)
>  G2 range=mjd(57877.2375,57877.2375579)
>  G1 enable=1
>  G2 enable=1
> 2 antennas:
> Antenna G1
>  x=1.50069e+06  dx/dt=0
>  y=-1.19174e+06  dy/dt=0
>  z=6.06641e+06  dz/dt=0
>  posEpoch=0
>  axisType=azel
>  axisOffset=0
>  tcalFrequency=-1
>  Clock(57877: -0, -0, 57877)
> Antenna G2
>  x=1.50069e+06  dx/dt=0
>  y=-1.19174e+06  dy/dt=0
>  z=6.06641e+06  dz/dt=0
>  posEpoch=0
>  axisType=azel
>  axisOffset=0
>  tcalFrequency=-1
>  Clock(57877: -0, -0, 57877)
> 1 modes:
> Mode MINE
>  Subband[0]=[2.3e+11 Hz, 2.048e+09 Hz, sb=U, pol=R]
>  Setup[G1]
>   Setup:
>    Channel: [name=Ch01 BBC=BBC01 IF=XX s=0 -> r=0 t=0 tones=]
>    IF: IF_XR [name=XX, SSLO=2.3e+11, sb=U, pol=R, phaseCalInterval=0 MHz]
>    Datastream:  [format=VDIF, nBit=2, nRecordChan=1, dataFrameSize=8224, nThread=0, singleThread=1, sampRate=4.096e+09]
>  Setup[G2]
>   Setup:
>    Channel: [name=Ch01 BBC=BBC01 IF=XX s=0 -> r=0 t=0 tones=]
>    IF: IF_XR [name=XX, SSLO=2.3e+11, sb=U, pol=R, phaseCalInterval=0 MHz]
>    Datastream:  [format=VDIF, nBit=2, nRecordChan=1, dataFrameSize=8224, nThread=0, singleThread=1, sampRate=4.096e+09]
> 5 eops:
>   EOP(57877, 35, 0, 0, 0)
>   EOP(57878, 35, 0, 0, 0)
>   EOP(57879, 35, 0, 0, 0)
>   EOP(57880, 35, 0, 0, 0)
>   EOP(57881, 35, 0, 0, 0)
>
> # correlation parameters
> vex=/data/lupin/test-7000/test.vex.obs
> mode=normal
> mjdStart=57877.2375
> mjdStop=57877.23755787
> minSubarray=2
> visBufferLength=80
> maxGap=180 # seconds
> maxLength=7200 # seconds
> minLength=0.5 # seconds
> maxSize=2000 # MB
> singleScan=0
> singleSetup=1
> mediaSplit=1
> jobSeries=test
> startSeries=7000
> dataBufferFactor=16
> nDataSegments=8
> maxReadSize=25000000 # Bytes
> minReadSize=4000000 # Bytes
> outputFormat=0
> antennas=G1,G2
> baselines=*-*
>
> ANTENNA G1
> {
>  X=-90000000000 Y=-90000000000 Z=-90000000000
>  axisOffset=-999
>  polSwap=0
>  phaseCalInt=0
>  tcalFreq=-1
> }
>
> ANTENNA G2
> {
>  X=-90000000000 Y=-90000000000 Z=-90000000000
>  axisOffset=-999
>  polSwap=0
>  phaseCalInt=0
>  tcalFreq=-1
> }
>
> SETUP default
> {
>  tInt=0.5
>  FFTSpecRes=0.5
>  outputSpecRes=0.5
>  doPolar=1
>  doAuto=1
>  subintNS=0
>  fringeRotOrder=1
> }
>
> RULE default
> {
>  correlator setup=default
> }
>
> 1 job groups created:
>  Group: scans 124-0542 - 124-0542 = mjd(57877.2375,57877.2375579)
> Job test_7000
>  mjd(57877.2375,57877.2375579)
>  duty cycle = 1
>  scans = 124-0542
>  Antenna list: G1 G2
>  size = 0 bytes
> developer error: writeDifxCalc: D->job->calcFile is null
>
> 1 job(s) created.
> ¡X¡X
>
> Can someone indicate the way to fix the problem?
>
> Sincerely,
> --
> Lupin Chun-Che Lin
> Supporting Scientist of GLT (GreenLand Telescope) project
> in Institute of Astronomy and Astrophysics, Academia Sinica,
> 14F of Astronomy-Mathematics Building (Rm: 1405),
> National Taiwan University.
> No.1, Sec. 4, Roosevelt Rd, Taipei 10617, Taiwan.
> Tel: +886-2-2366-5464
> Fax: +886-2-2367-7849
>
>
>
>

-- 
-------------------------
Walter Brisken
Director
Long Baseline Observatory
(505)-234-5912