huibintemaspamfaq
Differences
This shows you the differences between two versions of the page.
Both sides previous revisionPrevious revisionNext revision | Previous revisionNext revisionBoth sides next revision | ||
huibintemaspamfaq [2019/01/10 10:35] – [Manual flagging] huibintema | huibintemaspamfaq [2019/06/18 05:24] – huibintema | ||
---|---|---|---|
Line 2: | Line 2: | ||
===== SPAM frequently asked questions ===== | ===== SPAM frequently asked questions ===== | ||
- | This ever-expanding section is based on user feedback. For questions on installing SPAM, see [[huibintemaspaminstall|this page]]. If you encounter a problem not listed below, please feel free to [[intema@strw.leidenuniv.nl|contact me]]. | + | This ever-expanding section is based on user feedback. For questions on installing SPAM, see [[huibintemaspaminstall|this page]]. If you encounter a problem not listed below, please feel free to [[huib.intema@curtin.edu.au|contact me]]. |
----- | ----- | ||
Line 129: | Line 129: | ||
----- | ----- | ||
- | |||
==== Problems running SPAM on new Intel CPUs, possibly after Linux update ==== | ==== Problems running SPAM on new Intel CPUs, possibly after Linux update ==== | ||
Line 135: | Line 134: | ||
Q: Why doesn' | Q: Why doesn' | ||
- | A: Updates of the Linux operating system in 2017 has triggered floating point problems when running AIPS tasks on a new line of Intel Xeon E5-xxx CPUs. This is likely caused by an outdated Intel compiler used to build the AIPS binary install. A GNU compiled version of AIPS 31DEC13 fixes the problem and is available [[ftp:// | + | A: Updates of the Linux operating system in 2017 has triggered floating point problems when running AIPS tasks on a new line of Intel Xeon E5-xxx CPUs. This is likely caused by an outdated Intel compiler used to build the AIPS binary install. A GNU compiled version of AIPS 31DEC13 fixes the problem and is available [[ftp:// |
+ | |||
+ | Q: Why does the SPAM pipeline generate signal 11 errors in certain AIPS tasks? | ||
+ | |||
+ | A: What is causing this is not completely clear, but probably has to do with the newer Intel hardware and Linux installs. A work-around seems to be to use the GNU-compiled version of AIPS 31DEC13 available [[ftp:// | ||
+ | |||
+ | (Kindly tested by Gerrit Schellenberger and Arnab Chakraborty) | ||
----- | ----- | ||
Line 174: | Line 180: | ||
(Kindly suggested by Chris Riseley) | (Kindly suggested by Chris Riseley) | ||
+ | |||
+ | ----- | ||
+ | |||
+ | ==== Problems running SPAM on new Intel CPUs, possibly after Linux update ==== | ||
+ | |||
+ | Q: Why doesn' | ||
+ | |||
+ | A: Updates of the Linux operating system in 2017 has triggered floating point problems when running AIPS tasks on a new line of Intel Xeon E5-xxx CPUs. This is likely caused by an outdated Intel compiler used to build the AIPS binary install. A GNU compiled version of AIPS 31DEC13 fixes the problem and is available [[ftp:// | ||
----- | ----- |
huibintemaspamfaq.txt · Last modified: 2021/02/03 14:26 by huibintema