NCL (NCAR Command Language) is not available on conda-forge for the linux-aarch64 (ARM64) platform. On ARM64 systems, conda search returns no results for NCL, which prevents straightforward installation and makes it difficult to support existing NCL-based visualization and analysis workflows.
Describe the solution you'd like
Add conda-forge builds of NCL for linux-aarch64 so users can install it on ARM64 systems with standard conda commands.
Describe alternatives you've considered
Building NCL from source on linux-aarch64, which can be complex due to dependencies and toolchain variability.
Additional context
NCL has historically been a key tool for atmospheric/climate workflows and remains embedded in many legacy and operational pipelines (WRF/MPAS post-processing, plotting, diagnostics). As ARM64 deployments become more common in HPC and cloud environments, lack of linux-aarch64 packages creates a barrier for scientific users and system administrators.
Description
Currently, NCL is not available on conda-forge for the linux-aarch64 (ARM64) platform. Running a platform-specific search returns no matching packages.
Reproducibility
Platform: linux-aarch64
Channels: conda-forge
Command:
conda search -c conda-forge --platform linux-aarch64 ncl
Output:
2 channel Terms of Service accepted
Loading channels: done
No match found for: ncl. Search: *ncl*
Rationale / Use Case
I am assisting with the setup of an AArch64-based Linux server for atmospheric modeling and post-processing workflows. While core modeling components can run on ARM64, the absence of NCL in conda-forge for linux-aarch64 makes it difficult to support established analysis and visualization pipelines that still rely on NCL.
Requested Feature
Enable conda-forge builds of NCL for linux-aarch64.
Thank you for considering this request and for maintaining the conda-forge ecosystem.
NCL (NCAR Command Language) is not available on conda-forge for the linux-aarch64 (ARM64) platform. On ARM64 systems, conda search returns no results for NCL, which prevents straightforward installation and makes it difficult to support existing NCL-based visualization and analysis workflows.
Describe the solution you'd like
Add conda-forge builds of NCL for linux-aarch64 so users can install it on ARM64 systems with standard conda commands.
Describe alternatives you've considered
Building NCL from source on linux-aarch64, which can be complex due to dependencies and toolchain variability.
Additional context
NCL has historically been a key tool for atmospheric/climate workflows and remains embedded in many legacy and operational pipelines (WRF/MPAS post-processing, plotting, diagnostics). As ARM64 deployments become more common in HPC and cloud environments, lack of linux-aarch64 packages creates a barrier for scientific users and system administrators.
Description
Currently, NCL is not available on conda-forge for the linux-aarch64 (ARM64) platform. Running a platform-specific search returns no matching packages.
Reproducibility
Platform: linux-aarch64
Channels: conda-forge
Command:
conda search -c conda-forge --platform linux-aarch64 nclOutput:
Rationale / Use Case
I am assisting with the setup of an AArch64-based Linux server for atmospheric modeling and post-processing workflows. While core modeling components can run on ARM64, the absence of NCL in conda-forge for linux-aarch64 makes it difficult to support established analysis and visualization pipelines that still rely on NCL.
Requested Feature
Enable conda-forge builds of NCL for linux-aarch64.
Thank you for considering this request and for maintaining the conda-forge ecosystem.