Opened 2 years ago

Last modified 3 months ago

#28696 new defect

qsieve with time=True doesn't work

Reported by: embray Owned by:
Priority: major Milestone: sage-9.5
Component: porting: Cygwin Keywords: qsieve cygwin time
Cc: Merged in:
Authors: Reviewers:
Report Upstream: N/A Work issues:
Branch: Commit:
Dependencies: Stopgaps:

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Description

When running something like qsieve(n, time=True), for some reason it uses the built-in time command in the shell to do this (is there really any advantage in that?)

However, on Cygwin, there is not a time program by default; it is a bash shell built-in, and there is no wrapper executable for it, so trying to run time with Popen fails as reported here: https://ask.sagemath.org/question/48549/qsieve-error/

A workaround would be to just use timeit, like

sage: timeit('qsieve(n)', repeat=1, number=1)

Change History (5)

comment:1 Changed 2 years ago by embray

  • Milestone changed from sage-9.0 to sage-9.1

Ticket retargeted after milestone closed

comment:2 Changed 19 months ago by mkoeppe

  • Milestone changed from sage-9.1 to sage-9.2

Moving tickets to milestone sage-9.2 based on a review of last modification date, branch status, and severity.

comment:3 Changed 13 months ago by mkoeppe

  • Milestone changed from sage-9.2 to sage-9.3

comment:4 Changed 7 months ago by mkoeppe

  • Milestone changed from sage-9.3 to sage-9.4

Moving to 9.4, as 9.3 has been released.

comment:5 Changed 3 months ago by mkoeppe

  • Milestone changed from sage-9.4 to sage-9.5
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