ACCESS-allocations
Affinity Groups
Logo | Name | Description | Tags | Join |
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ACCESS Allocations | The ACCESS Allocations affinity group is available to chat and answer your questions about allocations policies and procedures. We are also always happy to receive feedback and suggestions from the… | 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 |
---|---|---|---|
How-To Video: ACCESS Allocations | Video | ACCESS-account, ACCESS-allocations, allocation-management, allocations-proposal | Beginner |
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
Jonathan Komperda
University of Illinois at Chicago
Programs
Campus Champions
Roles
research computing facilitator

Expertise

Expertise
Chris Reidy
University of Arizona
Programs
Campus Champions, CCMNet
Roles
mentor, research computing facilitator, CCMNet

Expertise
People with Interest
Daniel Howard
University Corporation for Atmospheric Research
Programs
ACCESS CSSN, Campus Champions, CCMNet, RMACC
Roles
mentor, research computing facilitator, research software engineer, CCMNet

Interests

Interests
Elizabeth Kwon
Columbia University in the City of New York
Programs
Campus Champions, CCMNet
Roles
CampusChampionsAdmin, research computing facilitator, Affinity Group Leader, CCMNet