Re: [Libmesh-devel] Regression in reduced_basis_ex4

[Cody P. <cod...@gm...>]

Random number generation has caused us many issues in MOOSE as well.
Long ago we bundled in a free platform independent random number
generator which resolved all of these issues.  I don't know if we'd
want to go those extremes in the libMesh library but it has worked
well for us.

Cody

Sent from my evil iPhone

On Dec 15, 2011, at 9:13 AM, Roy Stogner <roy...@ic...> wrote:

>
>
> On Thu, 15 Dec 2011, John Peterson wrote:
>
>> On Thu, Dec 15, 2011 at 7:35 AM, Roy Stogner <roy...@ic...> wrote:
>>>
>>> but I've no idea what causes the difference.
>>
>> Hmm... just a thought: the RB stuff uses some random number generation stuff.
>>
>> Perhaps this could explain different greedy parameter selection order
>> on different systems, but not outright failure?
>
> That could explain why we're triggering failure in some cases but not
> in others, though.
> ---
> Roy
>
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