To be clear, ex10 on two processors will do it?


----- Original Message -----
From: Roy Stogner <[email protected]>
To: [email protected] <[email protected]>
Sent: Thu Nov 19 19:01:59 2009
Subject: Re: [Libmesh-devel] ex4 Parallel run error.


On Thu, 19 Nov 2009, Kirk, Benjamin (JSC-EG311) wrote:

> Are you looking back by date to find the last successful build?

Unfortunately I'm now at home with errands to do; I didn't discover
until 6:00 that the I/O problem was so serious.

Playing binary search through svn revision numbers is definitely the
next line of attack, but I may not be able to get to it until ~8am
tomorrow.  If anyone has a chance to try that first I'd appreciate it.
---
Roy

> ----- Original Message -----
> From: Roy Stogner <[email protected]>
> To: Vijay S. Mahadevan <[email protected]>
> Cc: libmesh-devel <[email protected]>
> Sent: Thu Nov 19 18:06:32 2009
> Subject: Re: [Libmesh-devel] ex4 Parallel run error.
> 
> 
> On Thu, 19 Nov 2009, Vijay S. Mahadevan wrote:
> 
>> yes, that fixed the problem in ex4. I'll compile my code and test it
>> later today and will let you know if there are any other problems.
> 
> There are definitely other problems.  There appears to be an I/O
> regression that's unrelated to the libHilbert change.  I'm still
> trying to track that down, but it's nasty - whereas the libHilbert bug
> was only affecting a couple codes, this I/O regression even triggers
> on ex10...
> ---
> Roy
> 
>> On Thu, Nov 19, 2009 at 5:25 PM, Roy Stogner <[email protected]> 
>> wrote:
>>> 
>>> 
>>> On Thu, 19 Nov 2009, Vijay S. Mahadevan wrote:
>>> 
>>>> Ah I see. I do not use AMR extensively these days and so most of my
>>>> test problems have been working smoothly without encountering the
>>>> error you mentioned. I assumed this was a very specific bug that
>>>> occurred only after several refinements. If this is the case, can I
>>>> fall back to enabling Hilbert library ? Or would it be safer to wait
>>>> for your implementation to be checked in before I start running in
>>>> parallel ?
>>> 
>>> My implementation's checked in now.  Whether it's safer to trust code
>>> that hasn't been thoroughly tested or code that has been found to fail
>>> in a few hard-to-find cases is a matter of opinion.  I'd appreciate it
>>> if you'd run with the new implementation, though, so that we start
>>> getting that more thoroughly tested ASAP.  That seems like the fastest
>>> way to get back to "safe".  The libHilbert issue appeared to be a
>>> problem in their code, which either means that we have to fix their
>>> code or that we've misunderstood the problem; either way it may take
>>> us a while to make it safe to turn that back on.
>>> ---
>>> Roy
>>>
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