CIAO "Watch Out" Page
This page lists noteworthy items and issues about the CIAO release. For the full list of known issues please review the:
- Help, I am unable to create regions in ds9!
By default, ds9 will no longer create regions when it starts; that is, clicking in the ds9 window will not create a region. This is because the ds9 interface has changed in version 7.3.2, as noted above, so that it no longer starts in region editing mode.
To create or edit regions, users must now manually switch to Region mode by selecting
Edit → Region
from the menu bar or the button bar.
Users can make this the default by editing their preferences:
Edit → Preferences ... Menus and Buttons (left panel) Edit → Menu → Region (right panel) Save
- Preserve During Load preferences
CIAO users should not enable any of the following options
Menus and Buttons → File → Menu → Preserve During Load → Pan Menus and Buttons → File → Menu → Preserve During Load → Region
preferences. Due to the way CIAO starts ds9, having these preferences enabled leads to a half-pixel shift in regions. This shift accumulates if the region file is saved and re-loaded.
Installing & Starting CIAO
- chips issue on macOS High Sierra and Sierra
An update to the macos Sierra operating system has caused a problem with chips. The chips-smoke003 test now fails with messages that look like:
error: xp_import_surface returned: 2 xp_destroy_surface: assertion failed: s != NULL xp_destroy_surface error: 3 xp_import_surface: assertion failed: s == NULL
The problem has been isolated to actions involving deleting a window: using the clear() command, delete_window() command, or clicking on the close button on the title bar. Those actions will succeed however, it will result in the background chips server crashing on any command which subsequently creates a new window.
As a work around, users can repeat the same command. Repeating the same command will recognize that the chips server is gone and will restart it automatically.
- Python 3.5 support only
In CIAO 4.11 only Python 3.5 is provided. Support for Python 2.7 in the scientific software ecosystem is diminishing.
- CIAO on Mac needs recent XQuartz and XCode
OSX users, particularly those that have upgraded from an earlier OSX version, should ensure that compatible versions of XQuartz (at least version 2.7.11) and XCode (also comes as part of Apple Developer Tools) are installed on the system before proceeding with the CIAO installation.
- No support for 32-bit Linux, nor OSX 10.10 (Yosemite) and earlier.
CIAO is no longer available for 32-bit Linux, nor is it available for OSX 10.10 (Yosemite) or earlier versions of OSX. CIAO 4.7 is still available for users who are unable to upgrade their system. The platform support page describes the operating systems that can be used with CIAO 4.11.
- Fontconfig error: Cannot load default config file
During the smoke tests some users will see the following message during the obsvis test
Fontconfig error: Cannot load default config file
This error is not critical. As long as the test reports a PASS, then users can ignore that message.
- Parameter file conflicts with HEAsoft
Both CIAO and FTOOLS use parameter files to store parameter values for tools, and provide tools for manipulating these files (e.g. plist, pset, punlearn; they have the same name in both systems). The location of the parameter files is taken from the $PFILES environment variables for CIAO and FTOOLS (or $UPARM if $PFILES does not exist).
Common errors are:
pget: could not get parameter "foo"
The following parameter: "foo,b,l,no,,,"Keyword"" has the following error(s): o Mode field "l" is invalid.
The following parameter: "foo,i,h,INDEF,INDEF,INDEF,"description"" has the following error(s): o Problem converting minimum field "INDEF" to parameter type "i". o Problem converting maximum field "INDEF" to parameter type "i".
We recommend that you start FTOOLS before CIAO to minimize conflicts; more information on this problem is available in the CIAO and FTOOLS section of the Starting CIAO thread. Also refer to the related FAQ "The tool is failing because ")sval" has somehow shown up in the parameter value.".
- Conflicts with Other Software Packages
There are some known conflicts between CIAO and other software or system libraries and tools. Issues not covered in this "Watch Out" page are listed on the "Other Software Packages" bug page.
- Incorrect GTIs when time-filtering grating data with dmcopy opt=all
When a time filter is applied to a level=1.5 (evt1a.fits) or level=2 (evt2.fits) grating file and the dmcopy opt=all option is used, the GTI block in the output file is not updated to reflect the correct time range. Time-related header keyword values - such as ontime, livetime, and exposure - will be incorrect because they are calculated from the time ranges in the GTI block.
This bug affects all ACIS and HRC grating data analysis. Read the bug report for details and a workaround.
- Specifying Aspect Solution Files
When there is a single aspect solution file, it can be provided directly to the tool:
unix% pset asphist infile=pcadf245733620N002_asol1.fits
In rare cases, there will be more than one aspect solution file for an observation. Then all the files must be provided in chronological order. (The time is in the filename, so "ls" lists them in chronological order.) This may be done as a comma-separated list:
unix% pset asphist infile="pcadf063874624N002_asol1.fits,pcadf063875522N002_asol1.fits,pcadf063902942N002_asol1.fits"
The list of aspect solution files may also be given as a stack. Any number of files, including just one, can be specified in the stack:
unix% cat pcad_asol1.lis pcadf245733620N002_asol1.fits unix% pset asphist infile=@pcad_asol1.lis
or more than one:
unix% cat pcad_asol1.lis pcadf063874624N002_asol1.fits pcadf063875522N002_asol1.fits pcadf063902942N002_asol1.fits unix% pset asphist infile=@pcad_asol1.lis
Note that an at symbol ("@") is used before the filename to indicate that it is a stack file.
- Installing 3rd party modules with pip3
Users must be careful when using pip3 to install 3rd party modules such as Astropy and Scipy into CIAO. The latest version of these packages MAY require updated versions of packages that CIAO needs; numpy being the most likely conflict.
Many of the python packages available via pip are either pure python or are precompiled binary distributions. However, some packages are provided as source code and will need to compile against the libraries on the users system. Users may experience problems building these packages due to some remaining hard-coded paths in some configuration files.