pychess uses 100% CPU

[jessesmith]

Binary package hint: pychess

Application: pychess
Version 0.10rc1

When the options "Use Analyzer" and "Use inverted Analyzer" are enabled on the Preferences screen, pychess uses 100% of the CPU. Turning off these two options causes pychess to use about 2% of the CPU.

Expected behaviour:
Turning on these extra options shouldn't use so much CPU time constantly. Perhaps by throttling themselves.

Reproducible:
Every time I've launched pychess thus far

[Andrew Hayzen (ahayzen)]

I can confirm that when using the package pychess on Ubuntu 10.10 using the steps provided by jessesmith that I can reproduce the bug. Therefore I have set this bug to confirmed.

Description: Ubuntu 10.10
Release: 10.10
pychess:
  Installed: 0.10~beta3-2
  Candidate: 0.10~beta3-2
  Version table:
 *** 0.10~beta3-2 0
        500 http://gb.archive.ubuntu.com/ubuntu/ maverick/universe i386 Packages
        100 /var/lib/dpkg/status

[Maverick JS (mavjs)]

Yes, the same thing happens when using the version 0.10rc1, hence "Status: New" -----> "Status: Confirmed"

[Markus Majer (mpathy)]

Which Chess Engine do you use?
PyChess is one of the few chess programs in Ubuntu, who can use the most sophisticated and strong chess engines, like Stockfish for example. This engine uses every last drop of resources it can use, but its capabilities are beyond those of almost any grandmaster. Maybe that makes you understand why it uses so much