[daip] Issue with FLATN (AIPS 2023) {External}
Eric Greisen
egreisen at nrao.edu
Tue Sep 10 19:24:43 EDT 2024
I do not know what compiler you are using and you also did not tell me whether you are ruinning a MACARM or MACINT "architecture". We use a rather old gfortran (6 or so) in MACINT and that did not have this issue. MACARM requires a recent gfortran since it is a recent new chip and that has this problem. I attach OPTIMIZE.LIS which needs to be in your $SYSUNIX area. Then
COMRPL $APLOOP/INTERPLATE - and check that it does not optimize (-g is no opt)
Then COMLNK $APGOOP/FLATN and other tasks like OGEOM.
Eric Greisen
________________________________
From: Arti Goyal <arti.goyal at uj.edu.pl>
Sent: Tuesday, September 10, 2024 7:19 AM
To: Eric Greisen <egreisen at nrao.edu>
Cc: daip <daip at nrao.edu>
Subject: Re: [daip] Issue with FLATN (AIPS 2023) {External}
Dear Prof Greisen,
Thanks for your prompt replies. I did the steps as you suggested below, and all the steps finished successfully. However, the problem still persists with the flatn task.
##
LOCALH> TPMON1: Begins on 2024.09.10 15:12:36
LOCALH> FLATN1: Task FLATN (release of 31DEC23) begins
LOCALH> FLATN1: Create TEST .FLATN . 2 (MA) on disk 1 cno 465
LOCALH> FLATN1: Field 1 included blc,trc 253 2247 773 2767
LOCALH> FLATN1: ZABORS: signal 15 received
LOCALH> FLATN1: ABORT!
##
Please let me know what you think.
Thank you.
Best regards,
Arti Goyal
From: Eric Greisen <egreisen at nrao.edu>
Date: Friday, September 6, 2024 at 18:47
To: Arti Goyal <arti.goyal at uj.edu.pl>
Cc: daip <daip at nrao.edu>
Subject: Re: [daip] Issue with FLATN (AIPS 2023) {External}
UWAGA: Wiadomość pochodzi od zewnętrznego nadawcy.
You need to add a line to $SYSUNIX/OPTIMIZE.LIS setting routine name INTERPLATE on MACARM to 0 0 optimization. Then COMRPL $APLOOP/INTERPLATE. The COMLNK/$APGOOP/*.FOR and COMLNK $QPGOOP/*.FOR. Apparently recent gfortran versions do something bad in this collection of routines used in regridding images (FLATN, OGEOM, OHGEO, and more).
Thanks for reporting this.
Eric Greisen
________________________________
From: Daip <daip-bounces at listmgr.nrao.edu> on behalf of Arti Goyal via Daip <daip at listmgr.nrao.edu>
Sent: Thursday, September 5, 2024 2:25 AM
To: aipsmail <aipsmail at nrao.edu>
Subject: [daip] Issue with FLATN (AIPS 2023) {External}
Dear colleague,
I have text installed AIPS 2023 on my Macbook Pro and it’s running smoothly. I am encountering a problem while running the task FLATN. Here I want to interpolate 25 fields into one as I have performed a wide-field imaging (610 MHz data from GMRT telescope in India). The problem is that the task starts but doesn’t finish no matter how long I let take and I need to abort to get the terminal back. The resulting FLATNed image is junk without any intensities.
##
LOCALH> FLATN1: Task FLATN (release of 31DEC23) begins
LOCALH> FLATN1: Create HDFN .FLATN . 1 (MA) on disk 1 cno 361
LOCALH> FLATN1: Field 1 included blc,trc 253 2247 773 2767
LOCALH> FLATN1: ZABORS: signal 15 received
LOCALH> FLATN1: ABORT!
##
The image header of the FLATNed image:
AIPS 1: Got(1) disk= 1 user= 100 type=MA HDFN.FLATN.1
AIPS 1: Image=HDF-N (MA) Filename=HDFN .FLATN . 1
AIPS 1: Telescope=GMRT Receiver=GMRT
AIPS 1: Observer=TOM User #= 100
AIPS 1: Observ. date=01-APR-2007 Map date=04-SEP-2024
AIPS 1: Pixel type: FLOATING Magic value blanking
AIPS 1: Minimum= 1.00000002E+20 Maximum=-1.00000002E+20 JY/BEAM
AIPS 1: ----------------------------------------------------------------
AIPS 1: Type Pixels Coord value at Pixel Coord incr Rotat
AIPS 1: RA---SIN 3000 12 36 49.403515 1500.00 -1.380 0.00
AIPS 1: DEC--SIN 3000 62 12 57.973953 1501.00 1.380 0.00
AIPS 1: FREQ 1 6.1737502E+08 1.00 1.375000E+07 0.00
AIPS 1: STOKES 1 1.0000000E+00 1.00 1.000000E+00 0.00
AIPS 1: ----------------------------------------------------------------
AIPS 1: Coordinate equinox 2000.00
AIPS 1: Map type=NORMAL Number of iterations= 2413
AIPS 1: Conv size= 7.08 X 5.92 Position angle= 28.46
AIPS 1: Rest freq 0.000 Vel type: RADIO wrt YOU
AIPS 1: Alt ref. value 0.00000E+00 wrt pixel 0.45
AIPS 1: Keyword = 'WTNOISE ' value = 1.13333679D+00
AIPS 1: Keyword = 'SUMWTIN ' value = 1.42178117D+08
AIPS 1: Keyword = 'CCFLUX ' value = 2.569658E-02
AIPS 1: Keyword = 'CCTOTAL ' value = 1.265699E+00
AIPS 1: Keyword = 'MAXABSU ' value = -1.000000E+00
##
My box file for creating 25 fields is as below:
F 1 512 512 1380 1380
F 2 512 512 690 1380
F 3 512 512 0 1380
F 4 512 512 -690 1380
F 5 512 512 -1380 1380
F 6 512 512 1380 690
F 7 512 512 690 690
F 8 512 512 0 690
F 9 512 512 -690 690
F 10 512 512 -1380 690
F 11 512 512 1380 0
F 12 512 512 690 0
F 13 512 512 0 0
F 14 512 512 -690 0
F 15 512 512 -1380 0
F 16 512 512 1380 -690
F 17 512 512 690 -690
F 18 512 512 0 -690
F 19 512 512 -690 -690
F 20 512 512 -1380 -690
F 21 512 512 1380 -1380
F 22 512 512 690 -1380
F 23 512 512 0 -1380
F 24 512 512 -690 -1380
F 25 512 512 -1380 -1380
##
I will greatly appreciate any help in this regard.
Thank you.
Arti Goyal
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