Introduction & Entry Test: GSoC 2026 Applicant – Prakhar Sharma

Jobs & theses market GSoC
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Hello preCICE Team!

My name is Prakhar Sharma, and I am writing to express my strong interest in the “Error messages with configuration context” project for GSoC 2026. Over the past few weeks, I have been deep-diving into the preCICE source to understand how configuration state and communication interfaces interact.

What motivates you to spend this summer in GSoC instead of doing anything else? I want to spend my summer solving high-level architectural challenges in a project with real-world scientific impact. GSoC provides the perfect environment to transition from a contributor to a core-aware developer, and I am eager to dedicate 100% of my time to improving the preCICE user and developer experience.

What interests you most about our project? I am particularly drawn to the intersection of parser design and user experience. The current challenge of providing “context-aware” error messages is vital for a tool as complex as preCICE. I enjoy the process of tracing how data (like XML line numbers) must flow through the system—from the initial libxml2 parse down to specific validation checks in the configuration modules.

Will you have any other commitments (e.g., work or study) while working on the project? I will be a full-time contributor to GSoC 2026. I have no other internships, jobs, or academic commitments scheduled for the duration of the program. I am prepared to dedicate the standard 30–40 hours per week to my project milestones and will be available for all synchronized meetings with my mentors.

What previous experience do you have with the respective technologies? I have a strong background in C++ and object-oriented architecture. My recent work on preCICE has required me to manage complex pointer interfaces and navigate the internal state machines governing initialization and communication.

What previous experience with Git and GitHub do you have? I am highly proficient with Git and the GitHub workflow. I am comfortable managing architectural refactors through PRs and iterating based on maintainer feedback.

My Entry Test Progress & Contributions: I have submitted two Pull Requests that demonstrate my ability to handle both architectural refactors and core logic fixes:

  • PR #2477 (Refactoring Communication Interfaces): To improve API clarity and type safety, I split the monolithic Communication class into IntraCommunication and InterCommunication. This involved migrating all consumer files to use PtrIntraCommunication. This experience gave me a deep understanding of how preCICE handles internal state—knowledge that is crucial for tracking where “configuration context” is lost during the setup phase.

  • PR #2484 (Logic Fix for resetMesh): I addressed a state-machine issue where resetMesh() could not be called immediately after initialize(). By adding a _numberAdvanceCalls == 0 check and implementing new integration tests for parallel-explicit and parallel-implicit schemes, I ensured that remeshing is permitted before the first advance().

These contributions have shown me that while our logic is robust, our error reporting often lacks the “line-number” context that would help users debug these specific initialization or communication errors much faster. I am ready to bridge that gap.

You can find my work here: github.com/prakhar0608shrma.

I look forward to your feedback and contributing further to preCICE!