What is OpenACC?

The OpenACC Organization is dedicated to helping the research and developer community advance science by expanding their accelerated and parallel computing skills. We have 3 areas of focus: participating in computing ecosystem development, providing training and education on programming models, resources and tools, and developing the OpenACC specification.

#pragma acc data copy(A) create(Anew)
while ( error > tol  &&  iter  <  iter_max )  {
  error = 0.0;
#pragma acc kernels
  {
#pragma acc loop independent collapse(2)
  for (  int  j = 1; j < n-1;  j++ )  {
    for (  int  i = 1; i < m-1; i++ )  {
       Anew [j] [i] = 0.25 * ( A [j] [i+1] + A [j] [i-1] +
                                      A [j-1] [i] + A [j+1] [i]);
       error = max ( error, fabs (Anew [j] [i] - A [j] [i]));
      }
    }
  } 
}

Resources Access tutorials, guides, lectures, code samples, hands-on exercises and more. Get the Specs Download the latest OpenACC specification, technical report and work-in-progress proposals. Tools Get OpenACC compilers and tools designed by multiple vendors and academic organizations. Success Stories Learn how OpenACC users accelerated their scientific applications.

Latest News

OpenACC Highlights: June 2020

Jun. 25, 2020

BSC Releases OmpSs-2 Version 2020.06

Jun. 24, 2020

EPEEC Releases Programming Guidelines for Parallel Applications

Jun. 16, 2020

OpenACC Highlights: May 2020

May. 30, 2020

GPU Hackathons Go Remote: The Good, the Bad, and the Not-So-Ugly Way Forward

May. 26, 2020

Upcoming Events

Sheffield University GPU Hackathon 2020
July 20, 2020
Sheffield, UK
CCNU GPU Hackathon 2020
August 5, 2020
Digital Event
Brookhaven GPU Hackathon 2020
August 10, 2020
Digital Event
OpenACC Summit 2020
August 31, 2020
Digital Event

Join Us

Tweets by OpenACCorg