HPCG Benchmark

The High Performance Conjugate Gradients (HPCG) Benchmark project is an effort to create a new metric for ranking HPC systems. HPCG is intended as a complement to the High Performance LINPACK (HPL) benchmark, currently used to rank the TOP500 computing systems. The computational and data access patterns of HPL are still representative of some important scalable applications, but not all. HPCG is designed to exercise computational and data access patterns that more closely match a different and broad set of important applications, and to give incentive to computer system designers to invest in capabilities that will have impact on the collective performance of these applications.

HPCG is a complete, stand-alone code that measures the performance of basic operations in a unified code:

• Sparse matrix-vector multiplication.
• Vector updates.
• Global dot products.
• Local symmetric Gauss-Seidel smoother.
• Sparse triangular solve (as part of the Gauss-Seidel smoother).
• Driven by multigrid preconditioned conjugate gradient algorithm that exercises the key kernels on a nested set of coarse grids.
• Reference implementation is written in C++ with MPI and OpenMP support.

The new HPCG Performance List will was announced at the ISC 2022 conference.

The new HPCG Performance List was announced at the SC21 conference during virtual event. See SC21 TOP500 Supercomputers BOF Event page for more details.

The new HPCG Performance List was announced at the SC20 conference during virtual event. See SC20 HPCG BOF Event page for more details.

The new HPCG Performance List was announced at the ISC 2020 conference on Monday, June 22, 2020.

The new HPCG Performance List was announced at the SC19 conference in Denver, CO. The session entitled HPCG Benchmark Update took place on Thursday, November 21, 2019. See HPCG BOF Event page for more details.

The new HPCG Performance List was announced at the ISC 2019 conference in Frankfurt am Main in Germany. The session entitled TOP500, Green500 & HPCG Awards took place on Monday, June 17, 2019 in Panorama Room at 11:00 in Messe Frankfurt.

The new HPCG Performance List was announced at the SC18 conference in Dallas, Texas, USA. The session entitled HPCG Benchmark Update took place on Tuesday, November 13, 2018 in Room D167 at 12:15pm in Kay Bailey Hutchison Convention Center Dallas.

New results were accepted until October 25, 2018.

New HPCG Results were announced at SC17 in Denver, CO during the TOP500 BOF on Tuesday, November 14th from 5:15pm to 7pm MST in Mile High Ballroom.

New HPCG Results were announced at SC16 in Salt Lake City, UT during the HPCG BOF on Wednesday, November 16th from 5:15pm to 7pm MST in room 355-E. More details are available on the appropriate events tab.

The new HPCG Performance List will be announced at the ISC16 conference in Frankfurt, Germany.

The session entitled The HPCG Benchmark: Challenges It Presents to Current & Future Systems took place on Tuesday, June 21, 2016 in Panorama 2 Room in Messe Frankfurt.

The presentation from ISC16 includes a summary of all 80 list entries. Detailed results will be posted soon on this website.

HPCG Results were announced at SC15 in Austin, TX during the HPCG BOF. More details are available at the events page. And the results are available on the results page.