Hello,
is there a way to compute a SparseMatrix’s determinant? I would like to solve a
linear system but my final residual always equals exactly 0 after just one
iteration (where the solve terminates). Hence, I would like to check the matrix
for singularity.
Thank you.
Sincerely,
Barna
--
Hi,
I was wondering what the easiest way were to check if any of the values in the
solution of a linear system are NaNs.
best,
Barna
--
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Hello,
I have a problem, where I need to solve a linear system in a transient
simulation. However, the system I solve has no transient character, i.e. in
each time step I just need to solve a new system.
Anyway, at some point of my simulation, it seems like the result of my linear
system become
Hello,
What would be the easiest way to reference elements that contain a node on a
boundary. Ideally, I would like to have a mesh object with these elements but
unchanged node ids. Does the BoundaryMesh class handle this sort of thing or is
that class for actual boundary element (e.g. 2D els i
Thank you, that was very helpful.
> On 6 Jun 2017, at 14:57, Paul T. Bauman wrote:
>
>
>
> On Tue, Jun 6, 2017 at 8:52 AM, Barna Becsek <mailto:barnabec...@gmail.com>> wrote:
> Hello,
>
> I am in a situation where I need to setup test functions for an L2
Hello,
I am in a situation where I need to setup test functions for an L2projection.
Essentially, all I have to access in the end is get_phi() and get_JxW().
Now, I need to call fe->reinit() for every element that I add. Since I do not
need anything else than get_phi() and get_JxW(), I would li
ote:
>
>
> On Fri, 3 Mar 2017, Barna Becsek wrote:
>
>>> On 3 Mar 2017, at 17:47, Roy Stogner wrote:
>>>
>>> On Fri, 3 Mar 2017, Barna Becsek wrote:
>>>
>>>>> On 3 Mar 2017, at 17:28, Roy Stogner wrote:
>>>>>
>
Dear Roy,
I was finally able to install in a location where I can both read from compute
nodes and edit the files. In the attachment is what I found.
Basically, it seems like get_weights() returns an incorrect address.
–Barna
> On 7 Mar 2017, at 11:19, Barna Becsek wrote:
>
>&
> On 3 Mar 2017, at 22:30, Roy Stogner wrote:
>
>
> On Fri, 3 Mar 2017, Barna Becsek wrote:
>
>>> On 3 Mar 2017, at 17:47, Roy Stogner wrote:
>>>
>>> On Fri, 3 Mar 2017, Barna Becsek wrote:
>>>
>>>>> On 3 Mar 2017, at 1
Dear Roy,
I found the place the assertion is tripped. In the attachment you can see the
stack and location of the casting. Haven’t dug into why this happens yet…
–Barna
> On 1 Mar 2017, at 14:50, Barna Becsek wrote:
>
> Alright, thank you for giving it a look. As far as I can
Roy Stogner wrote:
>
>
> On Tue, 28 Feb 2017, Barna Becsek wrote:
>
>> I actually attached the stack to the previous email but I am not
>> sure whether I can actually send attachments to this mailing list.
>
> Depends on attachment size, but I simply overlooked it. I
ay to include pictures in here?
Thank you for your patience.
–Barna
> On 28 Feb 2017, at 17:57, Roy Stogner wrote:
>
>
> On Tue, 28 Feb 2017, Barna Becsek wrote:
>
>> To remedy this I called prepare_for_use once additionally before
>> gather_neigboring_elements (to m
gt;
> On Mon, 27 Feb 2017, Barna Becsek wrote:
>
>> I hope this does not come too late.
>
> That depends entirely on your deadlines, I fear. ;-)
>
>> But I finally got the debugger to work with some help of support on
>> the Supercomputer that we are using. This
017, at 17:04, Roy Stogner wrote:
>
>
> On Fri, 13 Jan 2017, Barna Becsek wrote:
>
>> Hmm, you are right but I cannot find a process that would correspond to the
>> children of any of these.
>
> Is this a cluster, by any chance? Where slurm is running o
pipe_w 15:14 pts/107 00:00:00
/opt/slurm/16.05.8/bin/srun -n 8 whale-dbg -i IMP/RunImpact2D.i
0 S becsekba 77353 61771 0 80 0 - 2637 pipe_w 15:19 pts/117 00:00:00
grep --color=auto whale-dbg
> On 13 Jan 2017, at 15:12, Roy Stogner wrote:
>
>
> On Fri, 13 Jan 2017,
0x0041b7f1 in reader_loop ()
#6 0x0041b4db in main ()
> On 13 Jan 2017, at 12:44, Barna Becsek wrote:
>
> Ok, this is the backtrace of the running processes. There are two processes
> running:
>
> 0 S becsekba 54451 54421 0 80 0 - 76108 futex_ 12:39 pts/92 00:0
–Barna
> On 12 Jan 2017, at 17:51, Roy Stogner wrote:
>
>
> On Thu, 12 Jan 2017, Barna Becsek wrote:
>
>> What I meant was the program will not exit gather_neighboring_elements. I
>> think the processes are still running.
>
> Right. But you can e.g. attach
What I meant was the program will not exit gather_neighboring_elements. I think
the processes are still running.
> On Jan 12, 2017, at 4:26 PM, Roy Stogner wrote:
>
>
>> On Thu, 12 Jan 2017, Barna Becsek wrote:
>>
>> thank you very much for these thorough elaborat
coarse meshes (9x9).
Maybe I can try this manually.
I added some more comments/questions below.
> On 12 Jan 2017, at 00:06, Roy Stogner wrote:
>
>
> On Tue, 10 Jan 2017, Barna Becsek wrote:
>
>> What we DON’T HAVE:
>> - A clear understanding of how ghost elements in Lib
Dear Users,
We are writing a multiphysics tool where we need to replicate a FD mesh in a FE
way. We have been almost able to translate one into the other but are facing
some minor difficulties (hopefully).
I would greatly appreciate if someone could help us find the missing steps for
having a c
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