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<p>Hi Chris,</p>
<p><br>
</p>
<p>Thanks for the reply, Yes I was able to use command lines to get from test-lsb.vex to .fits by through commands "vex2difx" --> "difxcalc" --> "mpifxcorr" --> "difx2fits", basically following the script in "tests/Synthetic/run-lsb.sh" or the example you
gave.</p>
<p><br>
</p>
<p><br>
Now I am trying to use the GUI to run experiment. At first I am not sure how to supply the synthetic .vdif files during the experiment. But I didn't even get that far with experiment, I am stuck at waiting for the .im file. Any guidance and help is greatly
appreciated. Or is it the case that GUI is not as important as long as I get the commands line work flow working. Thank you.</p>
<p><br>
</p>
<p>Sincerely,</p>
<p><br>
</p>
<p>Victor<br>
<br>
<br>
</p>
</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Phillips, Chris (S&A, Marsfield) <Chris.Phillips@csiro.au><br>
<b>Sent:</b> Monday, May 5, 2025 1:40:08 PM<br>
<b>To:</b> Victor(Yu-An) Chen<br>
<b>Cc:</b> Adam Deller; difx-users@listmgr.nrao.edu<br>
<b>Subject:</b> Re: [Difx-users] [SPAM] Re: Error on using DiFx GUI to run Experiment on Synthetic data {External} {External}</font>
<div> </div>
</div>
<div>I just tried running on my copy of DIFX:
<div><br>
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<div><font face="Menlo">$ ./createData.sh </font></div>
<div><font face="Menlo">Using TaskSpooler to parallelise</font></div>
<div><font face="Menlo">9</font></div>
<div><font face="Menlo">10</font></div>
<div><font face="Menlo">11</font></div>
<div><font face="Menlo">12</font></div>
<div><font face="Menlo">13</font></div>
<div><font face="Menlo">14</font></div>
<div><font face="Menlo">15</font></div>
<div><font face="Menlo">16</font></div>
<div><font face="Menlo">17</font></div>
<div><font face="Menlo">Waiting for TaskSpooler to finish</font></div>
</div>
<div><br>
</div>
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<div><font face="Menlo">$ vex2difx test-lsb.v2d </font></div>
<div><font face="Menlo">start date: 2020y100d07h00m00s</font></div>
<div><font face="Menlo">Requested integration time (1) is not an integer multiple of the FFT time (1.024e+06 ns)</font></div>
<div><font face="Menlo">Will attempt to nudge the int time to a more appropriate value</font></div>
<div><font face="Menlo">The provided tInt (1) is not an integer multiple of the subint (0.262144)</font></div>
<div><font face="Menlo">tInt has been updated from 1 to 1.31072</font></div>
<div><font face="Menlo">(You could also try modifying the subintNS if you want to try harder to get your desired integration time)</font></div>
<div><font face="Menlo"><br>
</font></div>
<div><font face="Menlo">1 job(s) created.</font></div>
<div><font face="Menlo"><br>
</font></div>
<div><font face="Menlo">$ difxcalc test-lsb.calc </font></div>
<div><font face="Menlo"><br>
</font></div>
<div><font face="Menlo"><br>
</font></div>
<div><font face="Menlo">Warning - No ocean loading coefficients for T1 </font></div>
<div><font face="Menlo">Will continue but you really should update file /home/vlbi/difx281/share/difxcalc/ocean_load.coef </font></div>
<div><font face="Menlo"><br>
</font></div>
<div><font face="Menlo">Warning - No ocean loading coefficients for T2 </font></div>
<div><font face="Menlo">Will continue but you really should update file /home/vlbi/difx281/share/difxcalc/ocean_load.coef </font></div>
<div><font face="Menlo"><br>
</font></div>
<div><font face="Menlo"><br>
</font></div>
<div><font face="Menlo"><br>
</font></div>
<div><font face="Menlo">Warning - No ocean pole tide loading coefficients for T1 </font></div>
<div><font face="Menlo">Will continue but you really should update file /home/vlbi/difx281/share/difxcalc/ocean_pole_tide.</font></div>
<div><font face="Menlo"><br>
</font></div>
<div><font face="Menlo">Warning - No ocean pole tide loading coefficients for T2 </font></div>
<div><font face="Menlo">Will continue but you really should update file /home/vlbi/difx281/share/difxcalc/ocean_pole_tide.</font></div>
<div><font face="Menlo"><br>
</font></div>
<div><span style="font-family:Menlo">$</span><span style="font-family:Menlo"> mpirun -machinefile machines -np 4 mpifxcorr test-lsb.input </span></div>
<div><font face="Menlo">About to run MPIInit on node bolverk</font></div>
<div><font face="Menlo">About to run MPIInit on node bolverk</font></div>
<div><font face="Menlo">About to run MPIInit on node bolverk</font></div>
<div><font face="Menlo">About to run MPIInit on node bolverk</font></div>
<div><font face="Menlo">NOTE: difxmessage is in use. If you are not running errormon/errormon2, you are missing all the (potentially important) info messages!</font></div>
<div><font face="Menlo">Mark5 stream: 0x7f041c004f20</font></div>
<div><font face="Menlo"> stream = File-1/1=TEST1.vdif</font></div>
<div><font face="Menlo"> format = VDIF_8000-250m1-1-2 = 3</font></div>
<div><font face="Menlo"> start mjd/sec = 58948 25200.000000000</font></div>
<div><font face="Menlo"> frame duration = 4000000.00 ns</font></div>
<div><font face="Menlo"> framenum = 0</font></div>
<div><font face="Menlo"> sample rate = 8000000 Hz</font></div>
<div><font face="Menlo"> offset = 0</font></div>
<div><font face="Menlo"> framebytes = 8032 bytes</font></div>
<div><font face="Menlo"> datasize = 8000 bytes</font></div>
<div><font face="Menlo"> frames per period = 250</font></div>
<div><font face="Menlo"> bits = 2</font></div>
<div><font face="Menlo"> alignment seconds = 1</font></div>
<div><font face="Menlo"> sample granularity = 4</font></div>
<div><font face="Menlo"> frame granularity = 1</font></div>
<div><font face="Menlo"> gframens = 4000000</font></div>
<div><font face="Menlo"> payload offset = 32</font></div>
<div><font face="Menlo"> read position = 0</font></div>
<div><font face="Menlo"> data window size = 1048576 bytes</font></div>
<div><font face="Menlo">Mark5 stream: 0x7fdc3c004f20</font></div>
<div><font face="Menlo"> stream = File-1/1=TEST2-lsb.vdif</font></div>
<div><font face="Menlo"> format = VDIF_8000-250m1-1-2 = 3</font></div>
<div><font face="Menlo"> start mjd/sec = 58948 25200.000000000</font></div>
<div><font face="Menlo"> frame duration = 4000000.00 ns</font></div>
<div><font face="Menlo"> framenum = 0</font></div>
<div><font face="Menlo"> sample rate = 8000000 Hz</font></div>
<div><font face="Menlo"> offset = 0</font></div>
<div><font face="Menlo"> framebytes = 8032 bytes</font></div>
<div><font face="Menlo"> datasize = 8000 bytes</font></div>
<div><font face="Menlo"> frames per period = 250</font></div>
<div><font face="Menlo"> bits = 2</font></div>
<div><font face="Menlo"> alignment seconds = 1</font></div>
<div><font face="Menlo"> sample granularity = 4</font></div>
<div><font face="Menlo"> frame granularity = 1</font></div>
<div><font face="Menlo"> gframens = 4000000</font></div>
<div><font face="Menlo"> payload offset = 32</font></div>
<div><font face="Menlo"> read position = 0</font></div>
<div><font face="Menlo"> data window size = 1048576 bytes</font></div>
<div><span style="font-family:Menlo"><br>
</span></div>
<div><span style="font-family:Menlo">$ difx2fits test-lsb</span></div>
<div><font face="Menlo"><br>
</font></div>
<div><font face="Menlo">Writing FITS tables:</font></div>
<div><font face="Menlo"> Header 2880 bytes</font></div>
<div><font face="Menlo"> AG -- array geometry 5896 bytes</font></div>
<div><font face="Menlo"> SU -- source 11556 bytes</font></div>
<div><font face="Menlo"> AN -- antenna 8560 bytes</font></div>
<div><font face="Menlo"> FR -- frequency 5696 bytes</font></div>
<div><font face="Menlo"> ML -- model 14276 bytes</font></div>
<div><font face="Menlo"> CT -- correlator (eop) 9146 bytes</font></div>
<div><font face="Menlo"> MC -- model components 10342 bytes</font></div>
<div><font face="Menlo"> SO -- spacecraft orbit No table written</font></div>
<div><font face="Menlo"> GD -- pulsar gate duty No table written</font></div>
<div><font face="Menlo"> GM -- pulsar gate model No table written</font></div>
<div><font face="Menlo"> UV -- visibility </font></div>
<div><font face="Menlo"><br>
</font></div>
<div><font face="Menlo"> Visibility files:</font></div>
<div><font face="Menlo"> JobId 0 file 1/1 : /home/vlbi/difx-git/tests/Synthetic/test-lsb.difx/DIFX_58948_025200.s0000.b0000</font></div>
<div><font face="Menlo"><br>
</font></div>
<div><font face="Menlo"> JobId 0 done.</font></div>
<div><font face="Menlo"> 0 invalid records dropped</font></div>
<div><font face="Menlo"> 0 flagged records dropped</font></div>
<div><font face="Menlo"> 0 all zero records dropped</font></div>
<div><font face="Menlo"> 0 negative weight records</font></div>
<div><font face="Menlo"> 0 scan boundary records dropped</font></div>
<div><font face="Menlo"> 0 out-of-time-range records dropped</font></div>
<div><font face="Menlo"> 0 records skipped</font></div>
<div><font face="Menlo"> 16 records written</font></div>
<div><font face="Menlo"> FITS MJD range: 58948.291674 to 58948.291780</font></div>
<div><font face="Menlo"> 534528 bytes</font></div>
<div><font face="Menlo"> FL -- flag No table written</font></div>
<div><font face="Menlo"> TS -- system temperature No table written</font></div>
<div><font face="Menlo"> PH -- phase cal </font></div>
<div><font face="Menlo"> No Tones extracted by DiFX</font></div>
<div><font face="Menlo"> No table written</font></div>
<div><font face="Menlo"> WR -- weather No table written</font></div>
<div><font face="Menlo"> GN -- gain curve </font></div>
<div><font face="Menlo"> GAIN_CURVE_PATH not set; only using local gain files.</font></div>
<div><font face="Menlo"> </font></div>
<div><font face="Menlo"> No gain curve for station 'T1'</font></div>
<div><font face="Menlo"> No gain curve for station 'T2'</font></div>
<div><font face="Menlo"> 7680 bytes</font></div>
<div><font face="Menlo"> -----</font></div>
<div><font face="Menlo"> Total 610560 bytes</font></div>
<div><font face="Menlo"><br>
</font></div>
<div><font face="Menlo">Conversion successful</font></div>
<div><font face="Menlo"><br>
</font></div>
<div><font face="Menlo">1 of 1 jobs converted to 1 FITS files</font></div>
<div><font face="Menlo"><br>
</font></div>
</div>
<div><font face="Menlo"><br>
</font></div>
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