RE: [chrono] error when coupling OpenFOAM and Chrono

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Radu Serban

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Apr 13, 2024, 3:19:49 AM4/13/24

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Jay – do I understand it correctly that you are using GCC 4.7?

If that is the case, you will need to upgrade to something more recent (GCC is now at version 13!).

You should also consider switching to the latest Chrono version (currently in the development ‘main’ branch of the git repository) which will be the base of the upcoming Chrono 9.0 release. There was a recent large refactoring of the code, but the information in the CHANGELOG file should help you with the update.

Please follow up on this if the problem still persists.

--Radu

From: projec...@googlegroups.com <projec...@googlegroups.com> On Behalf Of Jay Jay
Sent: Thursday, April 4, 2024 2:44 AM
To: ProjectChrono <projec...@googlegroups.com>
Subject: [chrono] error when coupling OpenFOAM and Chrono

Hi everyone,

I am coupling Chrono with OpenFOAM. But I got a problem. I have simplified the code and deleted irrelevant part. The code is:

void chronoFSI::initializeShell()
{
std::cout << "Copyright (c) 2017 projectchrono.org\nChrono version: " << CHRONO_VERSION << std::endl;
std::cout << "-----------------------------------------------------------\n";
std::cout << "-----------------------------------------------------------\n";
std::cout << " ANCF Shell Elements demo with implicit integration \n";
std::cout << "-----------------------------------------------------------\n";

ChSystemSMC sys_;

auto shellMesh_ = chrono_types::make_shared<ChMesh>();
shellMesh_->SetAutomaticGravity(false);
std::cout << "666\n";
auto element0 = chrono_types::make_shared<ChElementShellReissner4>();
std::cout << "777\n";
auto element1 = chrono_types::make_shared<ChElementShellReissner4>();
std::cout << "888\n";
int TotalNumElements = 10;
for (int i = 0; i < TotalNumElements; i++) {

std::cout << "888888888-1\n";
// Create the element and set its nodes.
auto element = chrono_types::make_shared<ChElementShellReissner4>();

std::cout << "888888888-2\n";

std::cout << "888888888-3\n";

}
std::cout << "9999999999\n";
sys_.Add(shellMesh_);

}

It is under OpenFOAM environment and I can compile it. But when running the code, I got the error:

Copyright (c) 2017 projectchrono.org
Chrono version: 8.0.0
-----------------------------------------------------------
-----------------------------------------------------------
ANCF Shell Elements demo with implicit integration
-----------------------------------------------------------
666
pimpleShellFoam: /usr/include/eigen3/Eigen/src/Core/DenseStorage.h:128: Eigen::internal::plain_array<T, Size, MatrixOrArrayOptions, 32>::plain_array() [with T = double; int Size = 576; int MatrixOrArrayOptions = 1]: Assertion `(internal::UIntPtr(eigen_unaligned_array_assert_workaround_gcc47(array)) & (31)) == 0 && "this assertion is explained here: " "http://eigen.tuxfamily.org/dox-devel/group__TopicUnalignedArrayAssert.html" " **** READ THIS WEB PAGE !!! ****"' failed.
Aborted (core dumped)

We can see by the output that the error occurs at ----- auto element0 = chrono_types::make_shared<ChElementShellReissner4>();.

Can anyone know how to solve this? Thanks a lot.

Regards,

Jay

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