HPC Intern - Compiler Evaluation & Performance Analysis

CGG Services SAS; Massy; On-site; EUR 13,000 - 20,000; Part time

Benefits offered by this job

Subsidised company restaurant

50% public transport reimbursement (Îl

Job summary

Viridien invites a Master’s student to join the compiler research team in Massy to analyze and document changes in a new compiler generation used in high-performance scientific computing. You will run tests, compare outcomes and make recommendations to support a technology transition.

You will be part of a fifteen-person team, contributing to in-house software for HPC, big data and AI, while collaborating globally.

Qualifications

• Pursuing a Master 2 degree in computer science (engineering school or university).
• Strong analytical mind and initiative; proactive attitude for research tasks.
• Solid foundation in Linux scripting (Bash, C Shell or equivalent).
• Proficiency in at least one programming language such as C, Fortran or Python.
• Comfortable communicating in English, both written and spoken.

Responsibilities

• Review the current compilation environment.
• Get hands-on with the next version of the compiler range and conduct a literature review of major changes.
• Select a set of test cases, either synthetic or from production scientific code.
• Analyze compilation outputs, compare results and assess performance gains.
• Compare optimizations applied by the compiler depending on enabled options.
• Present progress to the team throughout the internship.

Skills

Linux scripting

C

Fortran

Python

English communication

Teamwork

Education

Master 2 in Computer Science

Job description

Viridien (www.viridiengroup.com) is an advanced technology, digital and Earth data company that pushes the boundaries of science for a more prosperous and sustainable future. With our ingenuity, drive and deep curiosity we discover new insights, innovations, and solutions that efficiently and responsibly resolve complex natural resource, digital, energy transition and infrastructure challenges.

Job Summary

Our production environment currently runs on an earlier version of these compilers, and migrating to a more recent one requires a thorough assessment of the changes introduced, both functionally and in terms of performance. As part of this internship, you will help analyze the latest developments in a range of C++ and Fortran compilers used in our high-performance scientific computing activities. Your mission will be to identify, analyze and document the main evolutions of this new compiler generation, focusing on the optimizations implemented, their impact on the performance of our scientific applications, and the potential benefits for our computing environments. You will run tests, compare results and make recommendations to support this technological transition.

About the Team

You will join a team of around fifteen professionals in Massy, where we develop and maintain our in-house scientific computing software and all its complementary tools (HPC, Big Data, AI). We work with colleagues around the world, and our team thrives on open exchange, innovation, feedback and continuous learning. We are proud to be able to count on one another to achieve our goals and serve our colleagues as best we can.

Key Responsibilities

• Review our current compilation environment.
• Get hands-on with the next version of the compiler range and conduct a literature review of its major changes.
• Select a set of test cases, either synthetic or drawn from our production scientific code.
• Analyze the compilation outputs of these test cases, compare them and assess the performance gains.
• Compare the optimizations applied by the compiler depending on the options enabled.
• Present progress to our team throughout the internship.

Qualifications

• You are currently pursuing a Master 2 degree in computer science (engineering school or university) and want to put your skills into practice in an innovative environment.
• You are curious, motivated and proactive, with a strong analytical mind and a sense of initiative, which will be real assets in carrying out this mission.
• You are a good listener, able to understand your colleagues’ needs and contribute effectively to the projects entrusted to you.
• You have a solid foundation in Linux scripting (Bash, C Shell or equivalent) and are proficient in at least one programming language, such as C, Fortran or Python.
• You are comfortable communicating in English, both written and spoken.
• You enjoy teamwork and collaborating with people from varied profiles.
• You are eager to grow in an international environment and gradually build your autonomy.

Benefits

• An international culture in which the well-being and development of our employees are a top priority
• Access to company restaurant with subsidized price
• Access to benefits from Company works council
• Reimbursement of 50% of public transportation card in Ile-de-France region
• Attractive sustainable mobility incentive
• Love sports? Access to equipped Gym with reasonable price.
• Confidential employee assistance program to support our staff covering counselling, wellbeing, legal & financial issues.

Our Hiring Process

At Viridien, we are committed to delivering a respectful, inclusive, and transparent recruitment experience. Due to the high volume of applications we receive, we may not be able to provide individual feedback to every applicant. Only candidates whose qualifications closely match the role criteria will be contacted for an interview. We do, however, aim to share personalized feedback with those who progress to the first round of interviews and beyond. We are also dedicated to ensuring that our hiring process accessible to all. If you require any reasonable adjustments to fully participate in the application or interview stages, please don’t hesitate to contact your recruiter directly. We see things differently. Diversity fuels our innovation, we value the unique ways in which we differ, and we are committed to equal employment opportunities for all professionals. Create a brighter future for yourself while taking on some of the world’s most complex geoscience challenges.