Technical

All technical blog posts written by people of the Stream HPC team.

Handling OpenCL with CMake 3.1 and higher

There has been quite some “find OpenCL” code for CMake around. If you haven’t heard of CMake, it’s the most useful cross-platform tool to make cross-platform software. Put this into CMakeLists.txt, changing the names for the executable. #Minimal OpenCL CMakeLists.txt by StreamHPC cmake_minimum_required (VERSION 3.1) project(GreatProject) # Handle OpenCL find_package(OpenCL REQUIRED) include_directories(${OpenCL_INCLUDE_DIRS}) link_directories(${OpenCL_LIBRARY}) add_executable (main main.cpp)

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How to do Approximation Computing in OpenCL

Approximation computing is allowing larger errors when performing calculations.  While most programmers might go the other way (lower error rate) by using doubles for instance, this field is interesting for quite some of us. The reason is that you can get more performance, more bandwidth space and lower power usage in return. In Neural Networks high precision

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“Soon we will use only one thousandth of available computer capacity”

At StreamHPC we mostly work for companies in the bigger countries of Europe and North America. We hardly work for companies in the Netherlands. But it seems that after 5 years of sleeping, there is some shaking. Below is a (translated) article with the above quote by Prof. Dr. Ir. Henri Bal, professor at the Computer section

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The knowns and unknowns of the PEZY-SC accelerator at RIKEN

The green500 is out and one unknown processor takes the number one position with a huge improvement over last year. It is a new super-computer installed at RIKEN with an incredible 7 GFLOPS/Watt. It is powered by the processor-boards at the right: two Xeons, 4 PEZY-SC 1.4 accelerators and 128GB DRAM, which have a combined performance

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Xeon Phi Knights Corner compatible workstation motherboards

Intel has assumed a lot if it comes to XeonPhi’s. One was that you will use it on dual-Xeon servers or workstations and that you already have a professional supplier of motherboards and other computer-parts. We can only guess why they’re not supporting non-professional enthusiasts who got the cheap XeonPhi. After browsing half the internet to

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Nordic/Scandinavian GPGPU-day on 29 September 2015

After two events in the Netherlands, the third GPGPU-day will be held in Copenhagen! Speakers are researchers and companies from the Nordic and Scandinavian countries. If you’re interested in speaking at the conference, get in touch. Date: 29 September 2015 Location: Copenhagen, DK Venue: Danish Architecture Centre (route) Price, early bird: €225 Price, student: €100

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