Blog

Preconditioners

Today we are going to learn some important concepts related to matrix solvers. We will learn some of the preconditioners. They are often used as a black box in ABAQUS. We use its output ignoring the mechanism behind it. I hope with going through this blog post you will get a fair idea about the […]

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Untangling Research Through Zotero

If you are reading this, then you might be someone who is in the beginning phase of his/her research life or an active web surfer who just wants to keep track of his/her progress in the vast ocean of web resources. Either or neither, you have come to the right place, because I am going […]

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Parallel Computing with FEniCS

Parallel computing refers to breaking down a larger problem into independent smaller parts that can be executed simultaneously by multiple processors. The result is generated by combining results from all processors. It saves a lot of time and money compared to serial computing, where only one instruction is executed at any moment of time. In […]

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Parallelizing for loop in python with MPI

Parallel computing is necessary for venturing into the world of high performance computing. Parallel computing as the name suggests allows us to run a program parallelly. The preferred language of choice in our lab is Python and we can achieve parallel computation in python with the help of ‘mpi4py’ module. This comes with the standard […]

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Metacomposite and meta-sandwich structures using mechanical metamaterials

Lightweight sandwich structures are commonly used in aircraft that contain upper and lower skins made up of glass or carbon fabric composite with a honeycomb or foam core. Replacing them with mechanical metamaterials such as auxetic re-entrant honeycombs can show better performance. The mechanical metamaterials research field is still in its early stages and mostly […]

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FEniCS: The mesh workflow

This is my final post for the GSoC2019 program. The primary goal of the project was to ensure that the meshing package of choice gmsh, DOLFIN, and the preferred visualization package, Paraview work seamlessly together. The intention was to make improvements to the process of preserving the information about tagged regions of the mesh when importing it […]

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FEniCS: Completion of phase two

Goals for the second phase of the programming were two-fold: Create a method to construct MVC from arrays Develope code to test the integration of gmsh API with new mesh workflow. Creating MVC directly from arrays would allow bypassing saving of the mesh file onto the hard disk. The idea is to directly create MVC […]

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FEniCS: The XDMF schema

XDMF stands for eXtensible Data Model and Format. This type of file format is used to store and exchange a large amount of scientific data between high-performance computing codes. FEniCS supports ‘io’ operations with XDMF file format which is further supported by the visualization tool of choice PARAVIEW. In this post, I would describe a […]

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FEniCS: Completion of phase one

The coding period officially started on May 27th, 2019.  I have already discussed my project in detail in the previous posts and would just summarize it here. The goal of the project is to preserve the named metadata in `.geo` files through to the tagged regions (MeshValueCollection) in dolfinx. This would help the end user […]

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Understanding make and cmake

Up until this point in my life, I have never worked on a project in C++. Starting work on the cpp version of FEniCS was quite difficult as  I had no idea how even a simple program works in cpp. Thus, I planned to first properly learn the syntax of cpp and then try and […]

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