May be it is Python's multiprocessing then?. The script does a LOOP calling integrate command.
But it does each call in separate process, using Python's MP. Each command seems to create few folders. I just did one command and saw these created: rwx------ 2 me me 4096 Aug 15 09:53 tmpmyvujuyg drwx------ 2 me me 4096 Aug 15 09:53 tmpd14tubax drwx------ 2 me me 4096 Aug 15 09:53 tmpmp7uvinu drwx------ 2 me me 4096 Aug 15 09:53 tmpe7tycr65 drwx------ 2 me me 4096 Aug 15 09:53 tmpg0mt3zb4 Since the script runs for 10's of thousands of integrals, and I have 3 running at same time, my TMP fills up and Linux runs short of file nodes and get warning that desk space is short (even though the folder are empty, it is the file nodes causing this). See this-computer-has-only-0-bytes-disk-remaining-message-from-linux-running-on-vi <https://unix.stackexchange.com/questions/741127/this-computer-has-only-0-bytes-disk-remaining-message-from-linux-running-on-vi> I use multiprocessing, since that is only way I know to set a timeout on the integrate command, since sagemath has no build in support for timeout on function call. Here is the basic flow of the script: (this is not the real script but a stripped down version) ---------------------------------------------------------------- #!/usr/bin/env sage import os, sys, time, datetime, ntpath import multiprocessing as mp from sage.all import * def doTheIntegration(q1,q2): problem = q1.get() integrand = SR(problem[0]) theVar = SR(problem[1]) anti = integrate(integrand,theVar) q2.put(anti) if __name__ == "__main__": integrandAsString = "cos(x)" mp.set_start_method('spawn') q1= mp.Queue() q2= mp.Queue() q1.put([integrandAsString,"x"]) #integrand, variable process = mp.Process(target=doTheIntegration, args=(q1,q2,)) process.start() print("after process start()..waiting to finish") try: anti = q2.get(True,4*60) #4 minutes timeout except Exception as ee: print("Exception in call to queue.get ",ee) print("type(exception).__name__=",type(ee).__name__) del(q1) del(q2) process.terminate() ------------------------------------------------ I run this using sage ./script.sage And see these tmp folders created. Since real script runs in a loop, the tmp folders remain there until the script is done, which takes days. Is there a way not to create these tmp folders? Thanks --Nasser On Tuesday, August 15, 2023 at 8:28:39 AM UTC-5 Michael Orlitzky wrote: > On Tue, 2023-08-15 at 03:33 -0700, 'Nasser M. Abbasi' via sage-devel > wrote: > > Each time I run a sagemath script, I see 10's of thousands of files > created > > in my TMPDIR which I have to keep manually deleting. > > There aren't too many parts of sage that use temporary files. What's > the script doing? > > -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/03050696-1388-4469-948e-0dda7fa4e8aen%40googlegroups.com.
