dealii | development repository for the deal.II finite element
kandi X-RAY | dealii Summary
kandi X-RAY | dealii Summary
deal.II is a C++ program library targeted at the computational solution of partial differential equations using adaptive finite elements. It uses state-of-the-art programming techniques to offer you a modern interface to the complex data structures and algorithms required.
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QUESTION
I ran the following command:
...ANSWER
Answered 2019-Sep-25 at 11:23For host code usage:
The only general workaround with a high probability of success when building a 3rd party library with the CUDA toolchain is to arrange your project in such a way that the 3rd party code is in a file that ends in .cpp and is processed by the host compiler (e.g. g++ on linux, cl.exe on windows).
Your CUDA code (e.g. kernels, etc.) will need to be in files with filenames ending in .cu (for default processing behavior).
If you need to use this 3rd party code/library functionality in your functions that are in the .cu file(s), you will need to build wrapper functions in your .cpp files to provide the necessary behavior as callable functions, then call these wrapper functions as needed from your .cu file(s).
Link all this together at the project level.
It may be that other approaches can be taken if the specific issue is analyzed. For example, sometimes updating to the latest version of the 3rd party library and/or CUDA version, may resolve the issue.
For usage in device code:
There is no general compatibility approach. If you expect some behavior to be usable in device code, and you run into a compile error like this, you will need to address the issue specifically.
General suggestions may still apply, such as update to the latest version of the 3rd party library you are using, and/or latest CUDA version.
QUESTION
The function "foo" is from external library (In my case DEAlII ). It takes in class type as template parameter and its object. It then creates a copy of this object and performs some operation on this object.
The problem is when the input class is polymorphic (template ). Then I always pass base class object but pointing to different derived class, but the copied object in the function "foo" will be base class. And any call to member function on this copied object will call base class member function(But I need them to call to corresponding derived class member function).
Additionally the type of derived class is decided at runtime based on some input parameter. I cannot change/ move to different library, but I should be able to modify the function "foo" in the library(preferably not but may be as a last resort).
...ANSWER
Answered 2019-Jul-22 at 12:06If the implementation of foo can't be change then I see two options here:
Option 1: Simply downcast to appropriate type if you know what it is:
QUESTION
I have a question concerning the ordering and alignment of data in recursively defined arrays. Consider the following code
...ANSWER
Answered 2018-Apr-03 at 10:15I am one of the principal deal.II developers; I did not write that particular constructor for ArrayView but I think I can still answer your question.
For the record: the deal.II mailing list is pretty active and is a good place to go for questions like this.
That comment is sandbagging and simply states that we might modify the layout of Tensor at some point in the future: hence relying on the order things have when flattened out is explicitly discouraged.
We rewrote the entire Tensor class a few years ago (fall 2015) to be defined essentially in the same way as your example; the public interface with operator[] and friends was reimplemented to preserve compatibility, but the underlying storage order changed IIRC (we went from hard-coding some of the lower ranks to doing everything recursively). If we change the implementation again for some reason then the in-memory order will be different; hence the comment. I believe the point that the author of that comment was trying to make was 'we might change how things are implemented in the future, so do not rely on the order of things at the moment'.
QUESTION
This is kind of an obscure question and I don't really expect anyone to answer, but I have this method that takes (and returns) an Eigen::SparseMatrix. I want to put it into the deal.ii library, is there a way to copy/convert a SparseMatrix from deal.ii/Eigen? I know you can copy deal.ii to Trilinos SparseMatrix something like:
...ANSWER
Answered 2018-Jan-27 at 14:49This question is old but maybe I can still help. I am one of the deal.II developers and I don't remember seeing this on the mailing list (which is much more active for these types of questions than SO).
A SparseMatrix in deal.II does not store its own sparsity pattern: instead, it stores a pointer to a SparsityPattern object. You'll need to loop over the eigen matrix twice: once to set up the SparsityPattern and a second time to copy matrix values. Something like the following seems to work:
QUESTION
I used SWIG to wrap some classes in c++. My python script looks like
...ANSWER
Answered 2017-Feb-16 at 09:47In case someone finds the same problem in the future, I have found a way to call the delete in the order that I want using atexit.
It is not very clean, but I would be something like this:
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