Xeon Phi is a main/co-processor accelerator from Intel. If features 512-bit wide vector instructions, up to 68 cores, and can yield large performance gains. Programming the Xeon Phi is challenging and requires specialized knowledge.

ModelGenerationLaunchCoresThreadsClockSIMD WidthMemoryCache (L2)Memory B/W
Xeon Phi 7120Knights CornerQ2 2014612441.238GHz512bits16GB30.5MB352GB/s
Xeon Phi 7210Knights LandingQ2 2016642561.3GHz512bitsmax. 384GB32MB102GB/s
Xeon Phi 7230Knights LandingQ2 2016642561.3GHz512bitsmax. 384GB32MB115.2GB/s
Xeon Phi 7250Knights LandingQ2 2016682721.4GHz512bitsmax. 384GB34MB115.2GB/s

Xcelerit provides training to give clients solid background in the theoretical, software and computational aspects of Xeon Phi code optimization. Xcelerit trainers share their unique expertise to help clients port large compute-intensive code, while respecting memory constraints, and achieving large performance gains.

Whitepaper: A Guide to Xeon Phi Code Acceleration

Even though just recompiling x86 code will generate executables that can run on the Xeon Phi, the resulting binary is far from optimal. The code has to be optimised for 60+ cores, wider vector units, simpler cache hierarchy and more. This white paper discusses the challenges involved when developing code for Xeon Phi and give practical guides on how to maximise performance.

  • Xeon Phi features
  • Native and offload modes
  • Thread scalability
  • Vectorisation: Automatic and manual
  • Memory organisation and cache efficiency

Accelerate your code with Xeon Phi

  • Code analysis and profiling
  • Xeon Phi code migration
  • CPU / Xeon Phi code portability
  • Multi-threading, vectorisation, cache-blocking
  • Advanced performance optimisation
  • Memory tuning
  • Detailed optimisation report
  • C/C++, Java, C#, Fortran

About Xcelerit

Xcelerit is a leading provider of acceleration solutions for Quantitative Finance, engineering, and research. Our portfolio of solutions addresses a range of acceleration challenges from algorithmic optimisations to software acceleration. Xcelerit is the maker of the award-winning toolkit that allows domain-specialists to unlock the performance of accelerators (GPUs and Xeon Phi), and optimally deploy the advanced features of conventional multi-core processors. All of this is achieved with minor modifications to the existing source code.

Xcelerit extensive experience enables the firm to deliver a full solution from expert consultancy, bespoke development, training, and software acceleration. Our distinct competitive advantage derives from our unique combination of domain specialist knowledge and High Performance Computing expertise. This allows us to forge the most efficient solutions to better address our clients’ computational challenges.

Xcelerit has received recognition as a finalist in the Red Herring Europe Top 100 award, the Red Herring Top 100 Global award, and a two-time winner of HPC Wire’s “Best use of High Performance Computing in Financial Services” award. Our satisfied customers include the leading firms in investment banking, asset management, and insurance.

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