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The following code fails when run in parallel over 24 processes on ARCHER:
```
from pyop2 import *
from firedrake import *
mesh = Mesh("test.msh")
# Define the mixed function space
U = VectorFuncti…
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- make SchurComplement descendant of LinSys_PETSC
- assembly will be done directly to the SchurComplement object
- [x] constructor SchurComplement(IS a_block, const Distribution &ds)
- [x] Distributi…
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i tried to manipulate the options parameter, to change the options$maxiter property of pagerank, but i get error when i try to manipulate or even set another options list as parameter, for example to …
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Given a large (1.4 million edges), connected, directed, unweighted graph in the edgelist format "imported" using read.graph with the latest igraph (igraph 0.5.4) causes the following error:
g
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I'm trying igraph with the python interface.
When i try to calc some pagerank igraph throw an error saying "unknown ARPACK error".
I could reproduce it with a small set of data:
> > > subset = [(89…
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Example:
```
sage: ks3 = kSchurFunctions(QQ,3)
sage: s = SFASchur(ks3.base_ring())
sage: s(ks3(s([1,1,1,1])))
s[1, 1, 1, 1] + t^3*s[4]
```
In general, s(ks3(foo)) returns the_right_thing + bad_stu…
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Component: **doctest coverage**
_Issue created by migration from https://trac.sagemath.org/ticket/5816_