SMART Trouble Shooting

In the event of a crash of SMART type "retall" at the "IDL>" prompt.
This will clear down the variables and it may be possible to re-invoke SMART and continue. Any work in progress will be lost.
To start SMART from the "IDL>" prompt see SMART Scripting Guide

If "retall" fails type "exit" at the "IDL>" prompt. Once IDL has ended then re-invoke SMART. Any work in progress will be lost.

NOTE: A crash of SMART requiring an exit from IDL will result in the creation of a "core" object in the directory SMART was being run from.
These "core" objects are of no help in debugging SMART errors. Please remove them as they take up storage space.

In the event of a crash please check the following :

1. The right version of Astrolib is in use.
2. The Calibration Selection is set correctly.

SMART Graphics Problems

On some systems/IDL versions there may be issues with the interaction of IDL Object Graphics and the OpenGL? graphics system. This will generally manifest as the following behavior:

• On invoking SMART the start up messages appear at the Unix/Linux prompt.
  Then the initial SMART start up window appears briefly and then disappears.
  IDL is exited spontaneously.
  The words "Floating exception" are displayed at the Unix/Linux prompt.
  
• To fix this code the string "setenv MESA_NO_ASM 1" at the beginning of your SMART start up shell script.
• This is a known IDL bug, details here.