Stay up-to-date on the latest news, events and resources for the OpenACC community. This month’s highlights covers the upcoming NVIDIA GTC 2019, complete schedule of GPU hackathons and more!

1. February 2019
OPENACC MONTHLY
HIGHLIGHTS

2. 2
WHAT IS OPENACC?
main()
{
<serial code>
#pragma acc kernels
{
<parallel code>
}
}
Add Simple Compiler Directive
POWERFUL & PORTABLE
Directives-based
programming model for
parallel
computing
Designed for
performance and
portability on
CPUs and GPUs
SIMPLE
Open Specification Developed by OpenACC.org Consortium

3. 3
silica IFPEN, RMM-DIIS on P100
OPENACC GROWING MOMENTUM
Wide Adoption Across Key HPC Codes
ANSYS Fluent
Gaussian
VASP
LSDalton
MPAS
GAMERA
GTC
XGC
ACME
FLASH
COSMO
Numeca
OVER 100 APPS* USING OpenACC
Prof. Georg Kresse
Computational Materials Physics
University of Vienna
For VASP, OpenACC is the way forward for GPU
acceleration. Performance is similar to CUDA, and
OpenACC dramatically decreases GPU
development and maintenance efforts. We’re
excited to collaborate with NVIDIA and PGI as an
early adopter of Unified Memory.
“ “
VASP
Top Quantum Chemistry and Material Science Code
* Applications in production and development

4. 4
DON’T MISS THESE UPCOMING EVENTS
COMPLETE LIST OF EVENTS
Event Call Closes Event Date
GTC Bootcamp at GTC 2019, San Jose, California, USA March 4, 2019 March 17, 2019
CAS GPU Hackathon March 1, 2019 April 15-19, 2019
JGI GPU Hackathon March 1, 2019 May 6-10, 2019
MIT GPU Hackathon April 5, 2019 June 3-7, 2019
Colombia GPU Hackathon April 19, 2019 June 17-21, 2019
Princeton GPU Hackathon April 26, 2019 June 24-28, 2019

5. 5
OPENACC AT GTC 2019 – MARCH 18-21ST
Talks, Tutorials, Labs and More!
VIEW ALL EVENTS
Explore and engage with the latest research, resources
and technology. Learn from thought leaders across
academia, research and supercomputing centers such
as University of Delaware, University of Illinois at
Urbana-Champaign, NCAR, Jülich Supercomputing
Centre, Helmholtz-Zentrum Dresden-Rossendorf, and
more.
With sessions covering topics from scientific disciplines
to the most current developments in accelerator
programming, there is something for everyone. Attend
the GPU Bootcamp, take a hands-on lab or tutorial,
connect with experts, and network with peers at this
seminal event.

6. 6
GPU BOOTCAMP AT GTC
Sunday March 17th | 8:30 AM - 6:00 PM
APPLY NOW
Want to start learning how to accelerate your code
quickly and efficiently? GPU Bootcamp is the place
to go!
Designed for scientists and researchers, this free
one-day event will introduce you to a variety of
tools for GPU-accelerated computing where you
can master key acceleration techniques with the
OpenACC programming model, then apply your
knowledge to a real code.
Registration to GTC is not required.

7. 7
10TH ANNUAL
USER GROUP MEETING
Tuesday March 19th at 7:30PM
RSVP NOW
Enjoy an evening of colleagues, conversations
and cocktails at the OpenACC 10th Annual User
Group Meeting.
The event will provide a great platform to discuss
training, discover the latest resources, give
feedback on the specification, collaborate on
OpenACC-related research and activities, and
share experiences and best practices

8. 8
RESOURCES
Video Tutorial: OpenACC Selected Topics
Michael Wolfe, NVIDIA/PGI Compilers and Tools
These engaging video tutorials cover a wide range of
topics including: pool allocator using OpenACC,
managed memory msing OpenACC, implicit deep
copy, true deep copy, the future of data management,
multicore execution, and pinned memory.
VIEW NOW

9. 9
RESOURCES
Paper: Parallelization of a Denoising Algorithm for
Tonal Bioacoustic Signals using OpenACC Directives
Jorge Castro, Advanced Computing Laboratory, Costa Rica National High
Technology Center
Esteban Meneses, School of Computing, Costa Rica Institute of Technology
Automatic segmentation and classification methods for bioacoustic signals enable real-
time monitoring, population estimation, as well as other important tasks for the
conservation, management, and study of wildlife. These methods normally require a
filter or a denoising strategy to enhance relevant information in the input signal and
avoid false positive detections. This denoising stage is usually the performance
bottleneck of such methods. This paper discusses parallelizing a denoising algorithm
for tonal bioacoustic signals using mainly OpenACC directives. The implemented
program was executed in both multicore and GPU architectures. The proposed
parallelized algorithm achieves a higher speedup on GPU than CPU, leading to a 10.67
speedup compared to the original sequential algorithm in C++.
READ NOW

10. 10
RESOURCES
Blog: Optimizing an OpenACC Weather
Simulation Kernel
Alan Gray, NVIDIA
This blog article describes recent work to optimize an OpenACC code
provided by the Met Office in the United Kingdom. This relatively small
computational section has been developed as part of preparations to move to
the new LFRic Weather Simulation Model. LFRic will be developed using an
automated system called PSyclone which itself is currently under
development at The Hartree Centre to generate performance-portable
parallel code, including OpenACC-augmented Fortran for execution on
GPUs. The hand-tuning of the code described in this blog provides a “gold
standard” for PSyclone, to ensure that it is developed in a way that permits
good performance on the GPU architecture.
READ NOW

11. WWW.OPENACC.ORG
Learn more at