GEOS-Chem High Performance Working Group

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Revision as of 16:12, 10 September 2018 by Lizzie Lundgren (Talk | contribs) (GCHP User Reports)

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Welcome to the GEOS-Chem High Performance (GCHP) Working Group wiki page! GCHP represents the next generation of GEOS-Chem with a distributed memory capability enabling efficient scaling across many cores and finer resolution simulations. GCHP also has the advantage of using a cubed-sphere geometry enabling more accurate transport and eliminating the polar singularity inherent to lat-lon grids.

If you are working on a project using GCHP, please add your name and project description to the GCHP projects list located on this page. Also help us pool performance information across systems by contributing your GCHP run information, including your system specifications, on our GCHP Timing Tests page.

If you would like to stay informed of GCHP developments, please join the GEOS-Chem High Performance Working Group mailing list. We also encourage you to join our GCHP Slack workspace. Please contact the GEOS-Chem Support Team with GCHP questions and feedback.

Contact information


GEOS-Chem HP Working Group Chairs
GEOS-Chem HP email list geos-chem-hp [at]
To subscribe to email list Either
  • Send an email to geos-chem-hp+subscribe [at]


To unsubscribe from email list Either
  • Send an email to geos-chem-hp+unsubscribe [at]



The GCHP workspace on Slack facilitates easy communication between GCHP users. Contact the Lizzie Lundgren (elundgren [at] to join.

HP Computing Platforms

If you are a GCHP user, please add your system information below.

User Group Platform and OS Contact Person
Dalhousie Platform: Linux 2.6.18; OS: CentOS 5.7 Junwei Xu
Dalhousie Platform: Linux 2.6.32; OS: Red Hat 6.4 Junwei Xu
Harvard Platform: Linux 3.10.0; OS: CentOS 7.4.1707
Intel(R) Xeon(R) CPU E5-2683 v4 @ 2.10GHz
GEOS-Chem Support Team
MIT [Selin group] Platform: Linux 4.9.13; OS: Fedora 24 Daniel Rothenberg
MIT [LAE] Platform: Linux 3.13.0; OS: Ubuntu 14.04 LTS Sebastian D Eastham
Add yours here!    

Current GCHP Projects

If you are working on a project using GCHP, please add your group name, contact information, and a short description of your project to the table below.

User Group Description Contact Person
Harvard Core development, validation, and documentation Lizzie Lundgren
Jintai Lin (ACM @ PKU) Impacts of small-scale processes on global and regional chemistry (OH, O3 and CO in particular) Jintai Lin
Christoph Keller Coupling of GEOS-Chem to the GEOS Earth System Model and Data Assimilation System. Christoph Keller
Daniel Rothenberg (Selin Group @ MIT) Offline simulations with CESM/CAM meteorology Daniel Rothenberg
Add yours here!    

GCHP User Reports

If you are using GCHP, whether for a scientific project or simply to test out on your local system, please share your successful run information on our [Tests] wiki page. Please report any bugs you find to the GEOS-Chem Support Team so that we can promptly address them.