[petsc-users] [petsc4py] dm/examples/tutorials/ex2 in python

Jed Brown jed at jedbrown.org
Tue Jun 2 11:49:29 CDT 2015


Matthew Knepley <knepley at gmail.com> writes:
>> for i in xrange(start,end):
>>         global_vec[i] = 5.0*rank
>
> No, you would need xrange(end-start):

Specifically, Python made a decision about indexing semantics that,
while not irrational, really sucks for distributed array computing.  I'm
not aware of a clean way to give you nice syntax.
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