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Primeur weekly 2015-07-06

Special

Moving up to an Open Science Commons ...

HPC in the Baltic region ...

Data Access helps its customers get the most out of their HPC investments ...

The importance of being earnest about the long tail of research ...

Comstor to simply the IP management of clusters ...

Arbor Networks to protect organisations against DDoS attacks ...

Open Science perspective highlighted at e-IRG workshop in Riga ...

Focus on Europe

IBM, NVIDIA and Mellanox launch Design Center for Big Data and High Performance Computing ...

Launch event of SuperMUC Phase 2 on June 29, 2015 ...

Bright welcomes PC Link Egypt to its Partner Network ...

Middleware

OpenMP Device Constructs ...

Bright Computing to release Version 7.1 of Bright Cluster Manager at the ISC High Performance 2015 Conference ...

Agenda announced for PBS Works User Group Meeting ...

Hardware

CoolIT Systems reaches 50th patent milestone ...

DDN outlines strategic vision driving rapid adoption of DDN high performance storage technology throughout the enterprise ...

Nallatech 510T FPGA accelerator disrupts the data centre ...

Japan Atomic Energy Agency chooses SGI ICE X for new supercomputer system ...

ADVA Optical Networking unveils all-new Data Center Interconnect solution ...

ADVA Optical Networking launches new NFV demarcation product family ...

T-Systems and ADVA Optical Networking showcase the future of Terabit networking in unique demonstration ...

DDN object storage usage grows to 200+ billion objects; now world's 2nd largest object platform behind Amazon ...

Applications

Blue Waters simulations suggest there are fewer faint galaxies than expected ...

Researcher discovers groundwater modelling breakthrough ...

Internet of Things Turning New York's Lake George Into “World’s Smartest Lake ...

Producing spin-entangled electrons ...

The quantum middle man ...

New method of quantum entanglement packs vastly more data in a photon ...

The Cloud

Computational scientist Peter Coveney keynotes at ISC Cloud & Big Data ...

OpenMP Device Constructs

1 Jul 2015 Champaign - Target directives extend the OpenMP parallel threading directives to enable code running on a host to launch target code on one or more target devices. Target directives enable applications to easily target compute-intensive sections of code for execution on devices. The target execution operations may create storage on a device, transfer data to and from the device, and execute the code section on the device. The target execution can be conditionally based on an if clause, such that the code will execute on the host if the target device is not available. Fallback to the host makes programs written with OpenMP device constructs portable to systems that do not have any device.

Many-core devices, with their many small, power-efficient processing units, provide massive threading and SIMD processing. The value of this unprecedented hardware parallelism is widely acknowledged by industry, but has been slowly adopted, partly due to the lack of an open standard. Nevertheless, some device-specific and general APIs, such as CUDA, OpenACC, and OpenCL provide solutions to users for porting their codes to devices.

OpenMP is a well-known open standard for shared memory multiprocessing. Recently, the OpenMP language committee has extended the standard to include support for heterogeneous, non-shared-memory computing. OpenMP extensions now provide the ability to run code on both the host and a device in a "work sharing" manner within a single program. The execution model starts on a host processor. Sections of code encapsulated by OpenMP target directives are launched for execution on a device, while optionally allowing the host to execute in parallel with the device. The host controls all the allocation of device memory, transfer of data, queuing target executions on a queue, and managing their completion.

Significantly, OpenMP now provides a single, parallel model for threading, worksharing, device targeting, teams, and SIMD execution. A single paradigm provides a portable platform for development and a highly composable platform for integrating heterogeneous executions within a single program.

The complete article can be downloaded at http://primeurmagazine.com/repository/PrimeurMagazine-AE-PR-08-15-11.pdf
Source: OpenMP

Back to Table of contents

Primeur weekly 2015-07-06

Special

Moving up to an Open Science Commons ...

HPC in the Baltic region ...

Data Access helps its customers get the most out of their HPC investments ...

The importance of being earnest about the long tail of research ...

Comstor to simply the IP management of clusters ...

Arbor Networks to protect organisations against DDoS attacks ...

Open Science perspective highlighted at e-IRG workshop in Riga ...

Focus on Europe

IBM, NVIDIA and Mellanox launch Design Center for Big Data and High Performance Computing ...

Launch event of SuperMUC Phase 2 on June 29, 2015 ...

Bright welcomes PC Link Egypt to its Partner Network ...

Middleware

OpenMP Device Constructs ...

Bright Computing to release Version 7.1 of Bright Cluster Manager at the ISC High Performance 2015 Conference ...

Agenda announced for PBS Works User Group Meeting ...

Hardware

CoolIT Systems reaches 50th patent milestone ...

DDN outlines strategic vision driving rapid adoption of DDN high performance storage technology throughout the enterprise ...

Nallatech 510T FPGA accelerator disrupts the data centre ...

Japan Atomic Energy Agency chooses SGI ICE X for new supercomputer system ...

ADVA Optical Networking unveils all-new Data Center Interconnect solution ...

ADVA Optical Networking launches new NFV demarcation product family ...

T-Systems and ADVA Optical Networking showcase the future of Terabit networking in unique demonstration ...

DDN object storage usage grows to 200+ billion objects; now world's 2nd largest object platform behind Amazon ...

Applications

Blue Waters simulations suggest there are fewer faint galaxies than expected ...

Researcher discovers groundwater modelling breakthrough ...

Internet of Things Turning New York's Lake George Into “World’s Smartest Lake ...

Producing spin-entangled electrons ...

The quantum middle man ...

New method of quantum entanglement packs vastly more data in a photon ...

The Cloud

Computational scientist Peter Coveney keynotes at ISC Cloud & Big Data ...