ACCESS
Affinity Groups
Logo | Name | Description | Tags | Join |
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ACCESS System Status News | Enables ACCESS researchers, resource providers, project staff, developers, and anyone in the community to view and receive news and outage emails about ACCESS central systems and online… | Login to join |
Announcements
Title | Date |
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Introducing the ACCESS Variable Marketplace | 03/27/25 |
Nominations Now Open for ACCESS Researcher Advisory Board | 03/06/25 |
ACCESS On-Ramps is Easy for Institutions to Deploy | 02/27/25 |
Upcoming Events & Trainings
Title | Date |
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Maximize Allocations Proposal Window Open | 6/15/25 |
Topics from Ask.CI
Knowledge Base Resources
Title | Category | Tags | Skill Level |
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Navier-Stokes Cahn-Hilliard (NSCH) for MOOSE Framework | Website | ACCESS, c++, python, software-installation | Intermediate |
The Use of High-Performance Computing Services in University Settings: A Usability Case Study of the University of Cincinnati’s High-Performance Computing Cluster | Slides | ACCESS, login, documentation, community-outreach, professional-development, workforce-development | Beginner, Intermediate |
Tutorial: Localized RAG Chatbot with ACCESS HPC | Tool | ai, llm, generative-ai, nlp, machine-learning, ACCESS, supplement, jetstream, cloud-open-source, natural-language-processing, bash, git, vm, community-outreach, research-facilitation, workforce-development, python, interactive-mode, easybuild, pip | Beginner, Intermediate |
Engagements

Bayesian nonparametric ensemble air quality model predictions at high spatio-temporal daily nationwide 1 km grid cell
I aim to run a Bayesian Nonparametric Ensemble (BNE) machine learning model implemented in MATLAB. Previously, I successfully tested the model on Columbia's HPC GPU cluster using SLURM. I have since enabled MATLAB parallel computing and enhanced my script with additional lines of code for optimized execution.
I want to leverage ACCESS Accelerate allocations to run this model at scale.
The BNE framework is an innovative ensemble modeling approach designed for high-resolution air pollution exposure prediction and spatiotemporal uncertainty characterization. This work requires significant computational resources due to the complexity and scale of the task. Specifically, the model predicts daily air pollutant concentrations (PM2.5 and NO2 at a 1 km grid resolution across the United States, spanning the years 2010–2018. Each daily prediction dataset is approximately 6 GB in size, resulting in substantial storage and processing demands.
To ensure efficient training, validation, and execution of the ensemble models at a national scale, I need access to GPU clusters with the following resources:
- Permanent storage: ≥100 TB
- Temporary storage: ≥50 TB
- RAM: ≥725 GB
In addition to MATLAB, I also require Python and R installed on the system. I use Python notebooks to analyze output data and run R packages through a conda environment in Jupyter Notebook. These tools are essential for post-processing and visualization of model predictions, as well as for running complementary statistical analyses.
To finalize the GPU system configuration based on my requirements and initial runs, I would appreciate guidance from an expert. Since I already have approval for the ACCESS Accelerate allocation, this support will help ensure a smooth setup and efficient utilization of the allocated resources.
People with Expertise
Nannan Shan
Purdue University
Programs
CCMNet, ACCESS CSSN
Roles
mentor, researcher/educator, research computing facilitator, research software engineer, cssn, Affinity Group Leader, Consultant, CCMNet
Expertise
Jacob Fosso Tande
North Carolina State University
Programs
ACCESS CSSN, Campus Champions, CCMNet
Roles
researcher/educator, research computing facilitator, Affinity Group Leader, Consultant, CCMNet

Expertise
Expertise
People with Interest
Programs
CCMNet
Roles
CCMNet

Interests
David Carlson
SUNY at Stony Brook
Programs
ACCESS CSSN, OnDemand
Roles
researcher/educator, research computing facilitator, cssn
Interests
