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[Octave-bug-tracker] [bug #54762] Using fill with 1000 vertices crashes

From: Georg Wiora
Subject: [Octave-bug-tracker] [bug #54762] Using fill with 1000 vertices crashes octave
Date: Thu, 4 Oct 2018 03:26:27 -0400 (EDT)
User-agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:62.0) Gecko/20100101 Firefox/62.0

Follow-up Comment #11, bug #54762 (project octave):

Surprisingly the problems do NOT arise when running octave from a windows
_cygwin-installation!_ The test with 1000 vertices repeatedly succeeds. I
tried to call the test with 5000 vertices not producing a crash:

It has a loooong execution time (20 minutes on i7) and needs a loooot of
memory (~2.5 GByte) but it does NOT crash. After building up the memory
structures (~8 minutes) one CPU core keeps running with 100% but no output
appears. There is also no change in memory usage.

GPU usage statistics for octave process while running the command says:
* Dedicated GPU-Memory: 8.2 MByte
* System GPU-Memory: 79.5 MByte
* Committed GPU-Memory: 105.7 MByte

I think this shows that the problem seems to be located in some windows-only
glue code or in some windows specific limitations of opengl.

More efficiency in openGL rendering would be heartly welcome.


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