Lawrence Livermore National Laboratory

Compiler Optimization for Parallel Programs - Postdoctoral Research Staff Member

Location:  Livermore, CA
Category:  Post Docs
Organization:  Computing
Posting Requirement:  External Posting
Job ID: 107644
Job Code: Post-Dr Research Staff 1 (PDS.1)
Date Posted: November 11 2020

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Join us and make YOUR mark on the World!

Come join Lawrence Livermore National Laboratory (LLNL) where we apply science and technology to make the world a safer place; now one of 2020 Best Places to Work by Glassdoor!

We have an opening for a Postdoctoral Researcher to perform research in the area of compiler optimization of parallel programs for High Performance Computing (HPC). You will work collaboratively with LLNL researchers to research and develop new compiler methodologies to optimize the execution of parallel programs targeting state-of-the-art heterogeneous many-core HPC systems. This position is in the Center for Applied Scientific Computing (CASC) Division within the Computing Directorate.

Essential Duties
- Research and develop abstract representations of software and hardware parallelism suitable for semantic analysis and optimization of parallel programs in compilers.
- Research and develop compiler methodologies to apply and expand existing compiler optimization on parallel codes.
- Research and develop novel compiler optimization methods to refactor parallel code for optimized execution on heterogeneous HPC systems.
- Provide support to allow HPC codes to effectively use the developed compiler methodologies.
- Perform empirical studies to quantify the performance of HPC codes using the developed compiler optimizations.
- Participate in the establishment of future research directions and contribute to group grant proposals, including preparation and presentation of proposals.
- Document complex research and development progress via technical reports, journal publications, and conference presentations and collaborate with a broad spectrum of scientists internally and externally to accomplish research goals.
- Pursue independent (but complementary) research interests and interact with a broad spectrum of scientists internally and externally to define and carry out the research.

- Ph.D. in Computer Science, or a related field.
- Experience in research and development in the area of compiler optimization for parallel applications, or adequate related expertise that demonstrates the ability to learn and perform research and development in compiler technologies for parallel applications.
- Ability to conduct high quality independent research and to develop implementations to evaluate the results.
- Experience in programming C/C++ in a Unix/Linux environment.
- Proficient verbal and written communication skills necessary to interact in a clear and concise manner, author technical and scientific reports and papers, and deliver scientific presentations.
- Ability to take the initiative and have interpersonal communication skills necessary to work effectively in a dynamic team environment.

Desired Qualifications
- Experience in compiler development, preferably in the Clang/LLVM compilation framework.
- Experience in parallel programming, preferably in widely used parallel programing models, such as OpenMP, CUDA, HIP and/or MPI.

Pre-Employment Drug Test:  External applicant(s) selected for this position will be required to pass a post-offer, pre-employment drug test.  This includes testing for use of marijuana as Federal Law applies to us as a Federal Contractor.

Security Clearance:  None required.

However, if your assignment is longer than 179 days cumulatively within a calendar year, you must go through the Personal Identity Verification process.  This process includes completing an online background investigation form and receiving approval of the background check.  (This process does not apply to foreign nationals.)

For additional information, please see DOE Order 472.2


Note:   This is a one year Postdoctoral appointment with the possibility of extension to a maximum of three years.  Eligible candidates are those who have been awarded a PhD at time of hire date.

About Us

Lawrence Livermore National Laboratory (LLNL), located in the San Francisco Bay Area (East Bay), is a premier applied science laboratory that is part of the National Nuclear Security Administration (NNSA) within the Department of Energy (DOE).  LLNL's mission is strengthening national security by developing and applying cutting-edge science, technology, and engineering that respond with vision, quality, integrity, and technical excellence to scientific issues of national importance.  The Laboratory has a current annual budget of about $2.3 billion, employing approximately 6,900 employees.


LLNL is an affirmative action/ equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, marital status, national origin, ancestry, sex, sexual orientation, gender identity, disability, medical condition, protected veteran status, age, citizenship, or any other characteristic protected by law.