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Plot update in time dependent problems very slow first two calls

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Hello,

when I update the plot in a time dependent problem, the first two calls are very slow (i.e. ~2-5 secs). This happens for example in the demo_navier-stokes.py example. After that the animation is smooth and each iteration only takes a fraction of a second.

I'm on FEniCS 2016.01 from PPA Ubuntu 16.04 with intel integrated graphics.

Is anybody else experiencing this?

Best,
Jo

asked Oct 31, 2016 by jenom FEniCS Novice (690 points)
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