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Environment creation fails in mamba and micromamba if it contains the _x86_64-microarch-level package in Linux #3222
Comments
I noticed that |
I've found that my environments that require a
will fail with
in fact, even after activating the environment, mamba will not recognize that one could "update" to the 100s level package to install .
|
Sorry for the noise on your issue. I think the problem with my issue is that mamba uses nvidia-smi to detect the cuda version:
whereas conda uses heuristics based on typical installation paths: I was able to install nvidia-smi to resolve my issue with the I suspect there are other quirks with how virtual packages are detected for bleeding edge features. Maybe conda + libmamba is enough to help you! So I tracked it down to a change between mamba version 1.4.5 and 1.4.6 On 1.4.5 base environment
Environment resolution with the command
succeeds with:
Then updating mamba to 1.4.6 and running the same command:
|
Sorry @hmaarrfk, I had missed your comment. Yes, the problem are similar but different, they boil down to virtual packages to be implemented in different ways in conda and mamba (and also rattler/pixi), so these issues emerge. Indeed the long term solution is for users to use either conda or rattler/pixi, so we reduce the number of different virtual packages implementations from 3 to 2, but users tend to me lazy in change tools (especially when muscle memory of commands to type is involved). The main problem here is that in the context of conda-forge/conda-forge.github.io#1261 if you try to add archspec support as documented (as of May 2024) in https://conda-forge.org/docs/maintainer/knowledge_base/#microarch, this will result in packages that silently can't be installed at all with mamba, that may be an issue difficult to debug. Probably a possible strategy is to remove the |
I just tested with mamba 2 and the problem is still present. As more packages are added to conda-forge that use archspec-optimized builds as described in https://conda-forge.org/docs/maintainer/knowledge_base/#microarch, all such builds (even the one with microarch_level==1) can't be installed with mamba, resulting in mamba silently installing old version of the packages that are not archspec-optimized. For example, trying to install the latest version of the conda:
mamba:
|
By looking a bit more into this, the problems seems that mamba reports generic microarch as mamba/libmamba/src/core/virtual_packages.cpp Lines 177 to 191 in 83fdeae
x86_64_v3 , see https://github.com/conda-forge/microarch-level-feedstock/blob/1b446dbab3999c5e27f1e0b000231f18fa1b6df1/recipe/conda_build_config.yaml#L15 .
Probably it make sense to open a sister issue in https://github.com/conda-forge/microarch-level-feedstock to let the maintainers there be aware of this. |
Yeah we should fix it to report |
Thanks, done in #3404 . |
Fix x86_64 to use underscore instead of dash See #3222 (comment) .
See #3222 (comment) . Co-authored-by: Julien Jerphanion <[email protected]>
Troubleshooting docs
Anaconda default channels
How did you install Mamba?
Mambaforge or latest Miniforge
Search tried in issue tracker
archspec
Latest version of Mamba
Tried in Conda?
I do not have this problem with Conda, just with Mamba
Describe your issue
If I try to run
mamba -v create -n test _x86_64-microarch-level
ormicromamba -v create -n test _x86_64-microarch-level
, the environment creation fails. If I tryconda create -n test _x86_64-microarch-level
or install the_x86_64-microarch-level
package in pixi, the installation in successful.Related to conda-forge/staged-recipes#24306 and conda-forge/conda-forge.github.io#2091 .
mamba info / micromamba info
Logs
environment.yml
~/.condarc
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