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Comparing OpenACC and OpenMP Performance and Programmability

larkin

“OpenACC and OpenMP provide programmers with two good options for portable, high-level parallel programming for GPUs. This talk will discuss similarities and differences between the two specifications in terms of programmability, portability, and performance.”

UPC and OpenSHMEM PGAS Models on GPU Clusters

DK Panda, Ohio State University

“Learn about extensions that enable efficient use of Partitioned Global Address Space (PGAS) Models like OpenSHMEM and UPC on supercomputing clusters with NVIDIA GPUs. PGAS models are gaining attention for providing shared memory abstractions that make it easy to develop applications with dynamic and irregular communication patterns. However, the existing UPC and OpenSHMEM standards do not allow communication calls to be made directly on GPU device memory. This talk discusses simple extensions to the OpenSHMEM and UPC models to address this issue.”

Podcast: Cray’s Steve Scott on Programming for the Next Decade

Steve Scott

“Our computing systems continue to evolve, providing significant challenges to the programming teams managing large, long-lived projects. Issues include rapidly increasing on-node parallelism, varying forms of heterogeneity, deepening memory hierarchies, growing concerns around resiliency and silent data corruption, and worsening storage bottlenecks.”

Video: Enabling OpenACC Performance Analysis

openacc-logo-v4

Learn how OpenACC runtimes also exposes performance-related information revealing where your OpenACC applications are wasting clock cycles. The talk will show that profilers can connect with OpenACC applications to record how much time is spent in OpenACC regions and what device activity it turns into.

Call for Papers: Workshop on Accelerator Programming using Directives

The 2nd Workshop on Accelerator Programming using Directives has issued its Call for Papers. The WACCPD Workshop takes place Nov. 16 in Austin in conjunction with SC15.

Slidecast: Vectorize or Die – Unlocking Performance

studio

“The free ride of faster performance with increased clock speeds is long gone. Software must be both threaded and vectorized to fully utilize today’s and tomorrow’s hardware. But modernization is not without cost. Not all threading or vectorization designs are worthwhile. How do you choose which designs to implement without disrupting ongoing development? Learn how data driven threading and vectorization design can yield long term performance growth with less risk and more impact.”

NAG Library adds New Algorithms for Application Developers

nag_logo

Today the Numerical Algorithms Group (NAG) released their latest NAG Library including over 80 new mathematical and statistical algorithms.

Video: OpenACC for Fortran Programmers

wolfe

“Learn how to program NVIDIA GPUs using Fortran with OpenACC directives. The first half of this presentation will introduce OpenACC to new GPU and OpenACC programmers, providing the basic material necessary to start successfully using GPUs for your Fortran programs. The second half will be intermediate material, with more advanced hints and tips for Fortran programmers with larger applications that they want to accelerate with a GPU. Among the topics to be covered will be dynamic device data lifetimes, global data, procedure calls, derived type support, and much more.”

Call for Submissions: OpenMPCon 2015

OpenMP

The OpenMP Architecture Review Board today announced the Call for Submissions for OpenMPCon 2015, its annual gathering focused on the practical application of the OpenMP API. The event takes place Sept. 28-30 in Aachen, Germany.

Video: Docker, Monitoring, and SLURM Dashboards

Christian Kniep

“Based on a containerized HPC environment this talk shows of a state-of-the-art stack including performance monitoring, log event handling and GraphDB based inventory to provide insights into what is going on within a SLURM cluster. The framework used is QNIBTerminal incorporating the ELK stack, a graphite backend and neo4j as a GraphDB.”