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Re: [HTCondor-users] Conda env with workstation pool

That pretty much lines up with what we tell people to do at CHTC:Âhttp://chtc.cs.wisc.edu/conda-installation.shtml

Josh Karpel

On Thu, Jul 23, 2020 at 8:25 AM Michael Pelletier via HTCondor-users <htcondor-users@xxxxxxxxxxx> wrote:

Iâve built a Singularity definition file that installs Miniconda and creates an environment YAML file, then builds the environment, and then configures the container so that the environment is activated automatically at the startup of the Singularity container. With Miniconda a CUDA 10.2 and 18.04 Ubuntu Singularity container file is about 850 megabytes in size.


Singularity doesnât necessarily have an extra infrastructure layer, as it doesnât require any services from the host â I bet it would be possible to input-transfer the Singularity executable and run it on an input-transferred container.


Alternatively, you could build out the full virtualenv in a directory with Miniconda, and then input-transfer that whole directory and activate it when the job starts up, which would eliminate the need for modules to be available on the exec node.


Michael V Pelletier

Principal Engineer

Raytheon Technologies

Information Technology

Digital Transormation & Innovation


From: HTCondor-users <htcondor-users-bounces@xxxxxxxxxxx> On Behalf Of West Matthew
Sent: Thursday, July 23, 2020 7:03 AM
To: htcondor-users@xxxxxxxxxxx
Subject: [External] [HTCondor-users] Conda env with workstation pool


I am trying to run an analysis on my local workstation pool that relies on software in a conda virtual environment. When the job runs on a remote machine, it does not have access to the libraries in that env back on the submit machine.

Given that virtual environments are common practice when running locally, I an hoping there is some means of making python libraries accessible without resorting to an extra infrastructure layer like Docker.




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