2016-05-20 9:12 GMT-04:00 Ehsan <[email protected]>:
> #2  0x00007ffff5cb614b in dealii::SparsityPattern::reinit
> (this=this@entry=0x7fffffffb498, m=829992, n=829992, max_per_row=8032)
>     at /deal_II/dealii-8.3.0/source/lac/sparsity_pattern.cc:251
It could be a memory problem. You try to create a matrix with 829,992
rows and up to 8,032 elements per row. This means 829,992*8,032 =
6,666,495,744 elements or 6,666,495,744 * 8 = 53,331,965,952 bytes =
53 Gb If you are only using one processor, you won't have enough
memory. However max_per_row seems excessively large, you can probably
find a sharper bound.

Best,

Bruno

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