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

[Lupin Lin]

Dear Walter,

Thanks for you comments. I still keep the trunk and old 2.4 versions in our computing system.
I just made a test for this new branch and hopefully my information is helpful to improve the recent release.

Sincerely,


> Walter Brisken <wbrisken at lbo.us> 於 2017年6月4日 上午4:50 寫道：
> 
> 
> 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

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