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[liucheng83 <question247705@xxxxxxxxxxxxxxxxxxxxx>]

Question #247705 on Yade changed:
https://answers.launchpad.net/yade/+question/247705

    Status: Answered => Open

liucheng83 is still having a problem:
Hi Bruno,
Ok, thank you.

Do you have any ideas about the following message, what do they mean?   What are the most possibility for "CHOLMOD warning: matrix not positive definite"?  And what are LDLt?
--------------
32 : Vh==NULL!! id=32 Point=0.641734 -0.368851 0.125888 rad=0.0394611
59 : Vh==NULL!! id=59 Point=0.785606 -0.130624 0.0825895 rad=0.0389221
......
1005 : Vh==NULL!! id=1005 Point=1.41177e+07 -3.31642e+07 -1.11211e+07 rad=0.0200399
infinite K1!
infinite K1!
CHOLMOD warning: matrix not positive definite
something went wrong in Cholesky factorization, use LDLt as fallback this time
AREA <= 0!!
AREA <= 0!!
9 : Vh==NULL!! id=9 Point=1.19656e+09 -1.65309e+10 6.17722e+09 rad=0.0399201
12 : Vh==NULL!! id=12 Point=3.15611e+10 -2.81586e+10 -9.68463e+09 rad=0.0398603
......
Floating point exception (core dumped)

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