Hi! On certain machines, I encounter the problem that the wall time for my computations is *much* more than the CPU time. For example, on one machine, the CPU time is 60 minutes, but the wall time is 330 minutes. On a different machine, the CPU time is 13 minutes but the wall time 19 minutes.
So, on some machine the wall/CPU ratio is greater than 5, on another machine it is less than 2 - for the same computation. My uneducated guess is that this is due to I/O processes: They do not count for the CPU time, but are of course relevant for the wall time, and the time spent depends on the machine. Of course I want to improve the situation. So, I'd like to find out what parts of my programs are causing the high ratio. Do you know of any profiling tools available in Sage that are suitable for analysing I/O processes (or other processes that may explain the wall/CPU ratio)? Cheers, Simon -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
