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Sage quit while running program

asked 2014-12-03 19:33:00 -0500

So for some reason my program quit while it was running something. I was able to open it back up but obviously my program quit in the middle of it being ran. It has been running for a long time and I want my output from it but it truncated it and I can't find how to get the full output since it didn't complete it doesn't have the link for me to click.

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This is pretty vague, so it's hard for us to help you. Was this in the Sage math cloud, the notebook on your machine, on a public server, in the command line? What version? Usually Sage just doesn't stop, except for timeouts on public servers of sagenb.

kcrisman gravatar imagekcrisman ( 2014-12-03 20:35:05 -0500 )edit

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answered 2014-12-04 06:27:42 -0500

From your question I'm guessing you have installed Sage on your computer and you are running it in notebook mode.

It seems you program takes a long time to run, and outputs a lot of data. In such a case it is a good idea to output to a file rather than outputting to the screen, for two reasons:

  • printing to the screen takes time! Your program will run faster if it prints nothing to the screen.

  • in the program crashes, you at least get whatever was written to a file until then.

Writing to a file is simple in Python. See the following selection of links: lecture notes, ask-sage, stackoverflow.

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Asked: 2014-12-03 19:33:00 -0500

Seen: 78 times

Last updated: Dec 04 '14