Xilinx, Inc. Compiler Engineer Intern in Ireland

Xilinx, the world's leading company specialized in FPGA, is looking for some interns to work on C++-based high-level programming tools to ease FPGA programming with improved productivity.

FPGA are reconfigurable MPSoC including CPU, GPU, reprogrammable logic and various specific accelerators (video CODEC...) and I/O subsystems (100 GigE, PCIe, memory buses...). This complexity makes them versatile systems that can be used as accelerators but this also makes their use difficult compared to simpler CPU-only environments.

Fortunately, at the same time there are various open standards for heterogeneous computing, such as OpenCL or OpenMP 5, being developed to ease the programming of accelerators. Xilinx is pushing these standards as a way to simplify FPGA programming.

The Domain Specific Languages (DSL) are an interesting high-level approach to simplify programming by specializing on the problems to be solved. OpenCL SYCL is a DSL based on pure modern C++ to represent the concepts used to program accelerators directly as C++ class without any extension or compiler to avoid portability issues.

The goal of this internship is to develop a SYCL open source environment targeted FPGA and CPU for emulation:

  • a first part is to extend the runtime implementation https://github.com/triSYCL/triSYCL based on OpenCL and OpenMP API;
  • a second part is to adapt the open source compiler Clang/LLVM by adding an outliner to extract the code of the computational kernels and improve the compiler flow to generate the SPIR 2.0 or SPIR-V portable intermediate representation to address the existing Vivado HLS and SDAccel tools from Xilinx. Khronos provides open source components to deal with OpenCL C++ and SPIR-V to help in this task;
  • the test infrastructure is to be extended at the same time with the development of some small applications;
  • in parallel to the implementation, a prospective research to define the standards themselves will be done.

The positions are based in Dublin (Ireland) and suited typically for master students, but of course other profiles can apply (PhD students...).

The candidate will have the opportunity to get involved into advanced technologies through the standardization committees of Khronos OpenCL & SYCL, Vulkan, OpenMP and C++, and meet all the leading companies and laboratories behind these technologies.

The areas and subjects of the internship are:

  • implementing parallel languages and run-times (OpenCL SYCL 2.2 https://www.khronos.org/sycl and OpenMP 5 http://openmp.org);
  • compilation (Clang/LLVM http://llvm.org/ and SPIR-V https://www.khronos.org/spir );
  • FPGA & accelerators;
  • C++17, STL, Boost;
  • DSL & DSeL;
  • HPC & real-time applications and libraries;
  • https://github.com/triSYCL/triSYCL
  • https://github.com/KhronosGroup/SyclParallelSTL
  • http://portablecl.org
  • open source software used for C++ development;
  • git;
  • Linux.

Education Requirements

BSc/MSc/PhD in domains related to computer science.

Passion for compilation and modern C++.

Years of Experience

The more the better.