[deal.II] lecture on deal.II and p4est for parallel copmutations

2020-09-13 Thread Timo Heister 
Hi all,

as part of the p4est summer school in July 2020, I gave a three part 
lecture about deal.II and how it interacts with p4est for distributed 
computations. This included 3 lectures, several demos, exercises, and Q 
I also talk about recent development regarding parallel, matrix-free 
multigrid and how far we can scale computations these days.

A recording is now available here:

https://www.youtube.com/watch?v=K2xjCsXnfYI

I hope this is useful for some of you.

Best,
Timo

-- 
Timo Heister
http://www.math.clemson.edu/~heister/

-- 
The deal.II project is located at http://www.dealii.org/
For mailing list/forum options, see 
https://groups.google.com/d/forum/dealii?hl=en
--- 
You received this message because you are subscribed to the Google Groups 
"deal.II User Group" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to dealii+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/dealii/0bc811df-5993-417d-bf40-2787d07ffaefn%40googlegroups.com.

Re: [deal.II] Error while installing dealii using candi

2020-09-13 Thread Timo Heister 
You are running out of RAM while compiling. Try compiling without -j if
necessary.

On Sun, Sep 13, 2020, 01:38 Animesh Rastogi IIT Gandhinagar <
animesh.rast...@alumni.iitgn.ac.in> wrote:

>
> Dear Dealii community,
>
> I am reinstalling dealii using candi on my PC. Here is the error, I am
> getting while installing
>
> g++: internal compiler error: Killed (program cc1plus)
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See  for instructions.
> packages/belos/tpetra/src/CMakeFiles/belostpetra.dir/build.make:374:
> recipe for target
> 'packages/belos/tpetra/src/CMakeFiles/belostpetra.dir/solvers/Belos_Tpetra_GmresPoly.cpp.o'
> failed
> make[2]: ***
> [packages/belos/tpetra/src/CMakeFiles/belostpetra.dir/solvers/Belos_Tpetra_GmresPoly.cpp.o]
> Error 4
> CMakeFiles/Makefile2:6883: recipe for target
> 'packages/belos/tpetra/src/CMakeFiles/belostpetra.dir/all' failed
> make[1]: *** [packages/belos/tpetra/src/CMakeFiles/belostpetra.dir/all]
> Error 2
> Makefile:162: recipe for target 'all' failed
> make: *** [all] Error 2
>
>
> Could someone please let me know why I am getting this error?
>
> Thanks
>
> AR
>
> --
> The deal.II project is located at http://www.dealii.org/
> For mailing list/forum options, see
> https://groups.google.com/d/forum/dealii?hl=en
> ---
> You received this message because you are subscribed to the Google Groups
> "deal.II User Group" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to dealii+unsubscr...@googlegroups.com.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/dealii/c3085bbd-faa2-44cf-b513-2483b0582873n%40googlegroups.com
> 
> .
>

-- 
The deal.II project is located at http://www.dealii.org/
For mailing list/forum options, see 
https://groups.google.com/d/forum/dealii?hl=en
--- 
You received this message because you are subscribed to the Google Groups 
"deal.II User Group" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to dealii+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/dealii/CAMRj59HJNjee3OkYmbY3bpdyYVnQD4274p-hsT2VEOUP0ChmLQ%40mail.gmail.com.

[deal.II] Re: Regarding configuring with UMFPACK for Quasi-Static Strain Compressible Elasticity program

2020-09-13 Thread Animesh Rastogi IIT Gandhinagar 
Hi All,

I was able to run this problem in my PC. I reinstalled dealii after 
installing the required dependencies ; followed the readme of dealii to 
understand how to configure them together.

Thanks!

AR

On Sunday, September 13, 2020 at 1:03:34 AM UTC+5:30 Animesh Rastogi IIT 
Gandhinagar wrote:

> Hi Simon,
>
> Thanks for your reply. I am now trying to reinstall dealII with candi. In 
> the list of libraries, it does not show UMFPACK. Will it configure it from 
> the bundles or do I need to install SuiteSparse?
>
> Thanks!
>
> Animesh
>
> On Sunday, September 13, 2020 at 12:38:12 AM UTC+5:30 simon...@gmail.com 
> wrote:
>
>> Hi,
>> You'll need to call cmake with the flag
>>
>> -DDEAL_II_WITH_UMFPACK = ON
>>
>>
>> > Also, do I need to reinstall dealii everytime I realise that I have not 
>> configured dealii with a particular package?
>>
>> Yes. However, if you need several of the optional dependencies, there is 
>> a script that can make the installation process easier here:
>> https://github.com/dealii/candi
>>
>> Best,
>> Simon
>>
>>
>> On Saturday, September 12, 2020 at 1:42:29 PM UTC+2, Animesh Rastogi IIT 
>> Gandhinagar wrote:
>>>
>>> Attached is the detailed.log file. 
>>> On Saturday, September 12, 2020 at 4:39:21 PM UTC+5:30 Animesh Rastogi 
>>> IIT Gandhinagar wrote:
>>>
 Hello dealii Community, 

 I wish to run the program - Quasi-Static Finite-Strain Compressible 
 Elasticity. 

 

 This requires the dealii to be configured with UMFPACK. For this, I 
 installed the SuiteSparse with UMFPACK, compiled it, and then reconfigured 
 and reinstalled dealii using the command -DUMFPACK_DIR=/path/to/umfpack 
 (changing the path to the compiled version of UMFPACK in my PC) with cmake.

 However, I am still getting the following error when I am running the 
 Finite Strain program.

 An error occurred in line <635> of file 
  
 in function
 void dealii::SparseDirectUMFPACK::factorize(const Matrix&) [with 
 Matrix = dealii::SparseMatrix]
 The violated condition was: 
 false
 Additional information: 
 To call this function you need UMFPACK, but you configured deal.II 
 without passing the necessary switch to 'cmake'. Please consult the 
 installation instructions in doc/readme.html.

 Could someone please let me know how should I sort it out?

 Also, do I need to reinstall dealii everytime I realise that I have not 
 configured dealii with a particular package?

 Thanks!

 Animesh



-- 
The deal.II project is located at http://www.dealii.org/
For mailing list/forum options, see 
https://groups.google.com/d/forum/dealii?hl=en
--- 
You received this message because you are subscribed to the Google Groups 
"deal.II User Group" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to dealii+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/dealii/5e6bac01-e04a-4492-a9b8-97fb418e04d6n%40googlegroups.com.