SAGE_TMP looks something like this by default: /tmp/tmpGMP2PR. My /tmp is full but I have plenty of space in a different tmp directory on another disk. How can I change the default prefix in SAGE_TMP from /tmp to, say, /raid/scratch?
Thanks.
There is no way to customize just SAGE_TMP, though you can customize ~/.sage by setting DOT_SAGE. You can see from the source code at https://github.com/sagemath/sage/blob... that SAGE_TMP is hardcoded as a function of the hostname and pid. I vaguely recall writing this code 13 years ago to avoid conflicts when running multiple copies of Sage. It seems pretty annoying now, and it could easily lead to ~/.sage/temp getting really big if Sage keeps crashing, whereas often /tmp on systems gets automatically cleaned up (at least on reboot). Also, /tmp is often on a much faster filesystem than ~/.sage (which might be mounted over NFS). Sigh. I hope somebody changes this.
Asked: 2015-03-13 23:42:18 +0200
Seen: 651 times
Last updated: Dec 10 '19
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Which version of Sage are you using? For me the temporary directory is in home/.sage/temp/... This is what you can see from
On the other hand, if you are using the Sage notebook it does also uses some temporary directory which is I guess in /tmp/ by default.
I am using v6.4.1.
~/.sage/temp/is different. If I run a Notebook session, its files are stored under~/.sage/notebook/...but while a Sage calculation is running all the files there are just links to/tmp/somethingwhere/tmp/somethingis the value ofSAGE_TMPin that session. I am saving large objects via thesave()command and that's where I have the problem, because they can't fit in/tmp. There has got to be a way in Sage to set the prefix for SAGE_TMP from/tmpto something else.