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Environment creation fails in mamba and micromamba if it contains the _x86_64-microarch-level package in Linux
Troubleshooting docs
- [X] My problem is not solved in the Troubleshooting docs
Anaconda default channels
- [X] I do NOT use the Anaconda default channels (pkgs/* etc.)
How did you install Mamba?
Mambaforge or latest Miniforge
Search tried in issue tracker
archspec
Latest version of Mamba
- [X] My problem is not solved with the latest version
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 or micromamba -v create -n test _x86_64-microarch-level, the environment creation fails. If I try conda create -n test _x86_64-microarch-level or install the _x86_64-microarch-level package in pixi, the installation in successful.
Related to https://github.com/conda-forge/staged-recipes/pull/24306 and https://github.com/conda-forge/conda-forge.github.io/pull/2091 .
mamba info / micromamba info
(base) traversaro@IITBMP014LW012:~$ mamba info
mamba version : 1.5.7
active environment : base
active env location : /home/traversaro/miniforge3
shell level : 1
user config file : /home/traversaro/.condarc
populated config files : /home/traversaro/miniforge3/.condarc
/home/traversaro/.condarc
conda version : 24.1.2
conda-build version : 24.1.2
python version : 3.10.13.final.0
solver : libmamba (default)
virtual packages : __archspec=1=skylake
__conda=24.1.2=0
__cuda=12.3=0
__glibc=2.35=0
__linux=5.15.146.1=0
__unix=0=0
base environment : /home/traversaro/miniforge3 (writable)
conda av data dir : /home/traversaro/miniforge3/etc/conda
conda av metadata url : None
channel URLs : https://conda.anaconda.org/conda-forge/linux-64
https://conda.anaconda.org/conda-forge/noarch
package cache : /home/traversaro/miniforge3/pkgs
/home/traversaro/.conda/pkgs
envs directories : /home/traversaro/miniforge3/envs
/home/traversaro/.conda/envs
platform : linux-64
user-agent : conda/24.1.2 requests/2.31.0 CPython/3.10.13 Linux/5.15.146.1-microsoft-standard-WSL2 ubuntu/22.04.3 glibc/2.35 solver/libmamba conda-libmamba-solver/24.1.0 libmambapy/1.5.7
UID:GID : 1000:1000
netrc file : None
offline mode : False
(base) traversaro@IITBMP014LW012:~$ micromamba info
libmamba version : 1.5.7
micromamba version : 1.5.7
curl version : libcurl/8.5.0 OpenSSL/3.2.1 zlib/1.2.13 zstd/1.5.5 libssh2/1.11.0 nghttp2/1.58.0
libarchive version : libarchive 3.7.2 zlib/1.2.13 bz2lib/1.0.8 libzstd/1.5.5
envs directories : /home/traversaro/micromamba/envs
package cache : /home/traversaro/micromamba/pkgs
/home/traversaro/.mamba/pkgs
environment : /home/traversaro/miniforge3 (active)
env location : /home/traversaro/miniforge3
user config files : /home/traversaro/.mambarc
populated config files : /home/traversaro/miniforge3/.condarc
/home/traversaro/.condarc
virtual packages : __unix=0=0
__linux=5.15.146=0
__glibc=2.35=0
__archspec=1=x86_64-v3
__cuda=12.3=0
channels : https://conda.anaconda.org/conda-forge/linux-64
https://conda.anaconda.org/conda-forge/noarch
base environment : /home/traversaro/micromamba
platform : linux-64
(base) traversaro@IITBMP014LW012:~$ conda info
active environment : base
active env location : /home/traversaro/miniforge3
shell level : 1
user config file : /home/traversaro/.condarc
populated config files : /home/traversaro/miniforge3/.condarc
/home/traversaro/.condarc
conda version : 24.1.2
conda-build version : 24.1.2
python version : 3.10.13.final.0
solver : libmamba (default)
virtual packages : __archspec=1=skylake
__conda=24.1.2=0
__cuda=12.3=0
__glibc=2.35=0
__linux=5.15.146.1=0
__unix=0=0
base environment : /home/traversaro/miniforge3 (writable)
conda av data dir : /home/traversaro/miniforge3/etc/conda
conda av metadata url : None
channel URLs : https://conda.anaconda.org/conda-forge/linux-64
https://conda.anaconda.org/conda-forge/noarch
package cache : /home/traversaro/miniforge3/pkgs
/home/traversaro/.conda/pkgs
envs directories : /home/traversaro/miniforge3/envs
/home/traversaro/.conda/envs
platform : linux-64
user-agent : conda/24.1.2 requests/2.31.0 CPython/3.10.13 Linux/5.15.146.1-microsoft-standard-WSL2 ubuntu/22.04.3 glibc/2.35 solver/libmamba conda-libmamba-solver/24.1.0 libmambapy/1.5.7
UID:GID : 1000:1000
netrc file : None
offline mode : False
Logs
traversaro@IITBMP014LW012:~$ mamba -v create -n test _x86_64-microarch-level
WARNING: A conda environment already exists at '/home/traversaro/miniforge3/envs/test'
Remove existing environment (y/[n])? y
Looking for: ['_x86_64-microarch-level']
warning libmamba Cache file "/home/traversaro/miniforge3/pkgs/cache/497deca9.json" was modified by another program
warning libmamba Cache file "/home/traversaro/miniforge3/pkgs/cache/09cdf8bf.json" was modified by another program
conda-forge/noarch 13.8MB @ 2.5MB/s 5.6s
conda-forge/linux-64 32.9MB @ 3.1MB/s 10.8s
Could not solve for environment specs
The following packages are incompatible
└─ _x86_64-microarch-level is not installable because there are no viable options
├─ _x86_64-microarch-level 1 would require
│ └─ __archspec 1 core2, which is missing on the system;
├─ _x86_64-microarch-level 1 would require
│ └─ __archspec 1 k10, which is missing on the system;
├─ _x86_64-microarch-level 1 would require
│ └─ __archspec 1 nocona, which is missing on the system;
├─ _x86_64-microarch-level 1 would require
│ └─ __archspec 1 x86_64, which is missing on the system;
├─ _x86_64-microarch-level 2 would require
│ └─ __archspec 1 bulldozer, which is missing on the system;
├─ _x86_64-microarch-level 2 would require
│ └─ __archspec 1 ivybridge, which is missing on the system;
├─ _x86_64-microarch-level 2 would require
│ └─ __archspec 1 nehalem, which is missing on the system;
├─ _x86_64-microarch-level 2 would require
│ └─ __archspec 1 piledriver, which is missing on the system;
├─ _x86_64-microarch-level 2 would require
│ └─ __archspec 1 sandybridge, which is missing on the system;
├─ _x86_64-microarch-level 2 would require
│ └─ __archspec 1 steamroller, which is missing on the system;
├─ _x86_64-microarch-level 2 would require
│ └─ __archspec 1 westmere, which is missing on the system;
├─ _x86_64-microarch-level 2 would require
│ └─ __archspec 1 x86_64_v2, which is missing on the system;
├─ _x86_64-microarch-level 3 would require
│ └─ __archspec 1 broadwell, which is missing on the system;
├─ _x86_64-microarch-level 3 would require
│ └─ __archspec 1 cannonlake, which is missing on the system;
├─ _x86_64-microarch-level 3 would require
│ └─ __archspec 1 excavator, which is missing on the system;
├─ _x86_64-microarch-level 3 would require
│ └─ __archspec 1 haswell, which is missing on the system;
├─ _x86_64-microarch-level 3 would require
│ └─ __archspec 1 mic_knl, which is missing on the system;
├─ _x86_64-microarch-level 3 would require
│ └─ __archspec 1 skylake, which is missing on the system;
├─ _x86_64-microarch-level 3 would require
│ └─ __archspec 1 x86_64_v3, which is missing on the system;
├─ _x86_64-microarch-level 3 would require
│ └─ __archspec 1 zen, which is missing on the system;
├─ _x86_64-microarch-level 3 would require
│ └─ __archspec 1 zen2, which is missing on the system;
├─ _x86_64-microarch-level 3 would require
│ └─ __archspec 1 zen3, which is missing on the system;
├─ _x86_64-microarch-level 4 would require
│ └─ __archspec 1 cascadelake, which is missing on the system;
├─ _x86_64-microarch-level 4 would require
│ └─ __archspec 1 icelake, which is missing on the system;
├─ _x86_64-microarch-level 4 would require
│ └─ __archspec 1 skylake_avx512, which is missing on the system;
├─ _x86_64-microarch-level 4 would require
│ └─ __archspec 1 x86_64_v4, which is missing on the system;
├─ _x86_64-microarch-level 4 would require
│ └─ __archspec 1 zen4, which is missing on the system;
└─ _x86_64-microarch-level 4 would require
└─ __archspec 1 sapphirerapids, which is missing on the system.
traversaro@IITBMP014LW012:~$ micromamba -v create -n test _x86_64-microarch-level
micromamba: command not found
traversaro@IITBMP014LW012:~$ mamba activaet base
usage: mamba [-h] [-v] [--no-plugins] [-V] COMMAND ...
mamba: error: argument COMMAND: invalid choice: 'activaet' (choose from 'activate', 'deactivate', 'clean', 'compare', 'config', 'create', 'env', 'info', 'init', 'install', 'list', 'notices', 'package', 'remove', 'uninstall', 'rename', 'run', 'search', 'update', 'upgrade', 'build', 'convert', 'debug', 'develop', 'doctor', 'index', 'inspect', 'metapackage', 'render', 'repoquery', 'skeleton', 'server', 'pack')
traversaro@IITBMP014LW012:~$ mamba activate base
(base) traversaro@IITBMP014LW012:~$ micromamba -v create -n test _x86_64-microarch-level
warning libmamba 'root_prefix' set with default value: /home/traversaro/micromamba
info libmamba You have not set the 'root_prefix' environment variable.
To permanently modify the root prefix location, either:
- set the 'MAMBA_ROOT_PREFIX' environment variable
- use the '-r,--root-prefix' CLI option
- use 'micromamba shell init ...' to initialize your shell
(then restart or source the contents of the shell init script)
info libmamba Parsing MatchSpec _x86_64-microarch-level
info libmamba Searching index cache file for repo 'https://conda.anaconda.org/conda-forge/linux-64/repodata.json'
conda-forge/linux-64 Using cache
info libmamba Searching index cache file for repo 'https://conda.anaconda.org/conda-forge/noarch/repodata.json'
conda-forge/noarch Using cache
info libmamba All targets to download are cached
info libmamba All targets to download are cached
info libmamba Reading cache files '/home/traversaro/micromamba/pkgs/cache/497deca9.solv.*' for repo index 'conda-forge/linux-64'
info libmamba Attempting to read libsolv solv file "/home/traversaro/micromamba/pkgs/cache/497deca9.solv" for repo conda-forge/linux-64
info libmamba Expecting solv metadata : {"etag":"\"e0954d7fee16c27df57454083ba4e0d1\"","mod":"Thu, 07 Mar 2024 22:19:21 GMT","pip_added":true,"tool_version":"1.3_0.7.28","url":"https://conda.anaconda.org/conda-forge/linux-64"}
info libmamba Loaded solv metadata : {"etag":"\"e0954d7fee16c27df57454083ba4e0d1\"","mod":"Thu, 07 Mar 2024 22:19:21 GMT","pip_added":true,"tool_version":"1.3_0.7.28","url":"https://conda.anaconda.org/conda-forge/linux-64"}
info libmamba Metadata from solv are valid, loading successful
info libmamba Reading cache files '/home/traversaro/micromamba/pkgs/cache/09cdf8bf.solv.*' for repo index 'conda-forge/noarch'
info libmamba Attempting to read libsolv solv file "/home/traversaro/micromamba/pkgs/cache/09cdf8bf.solv" for repo conda-forge/noarch
info libmamba Expecting solv metadata : {"etag":"\"38e6f056bdf4240ef53d986e2c96d07d\"","mod":"Thu, 07 Mar 2024 22:41:44 GMT","pip_added":true,"tool_version":"1.3_0.7.28","url":"https://conda.anaconda.org/conda-forge/noarch"}
info libmamba Loaded solv metadata : {"etag":"\"38e6f056bdf4240ef53d986e2c96d07d\"","mod":"Thu, 07 Mar 2024 22:41:44 GMT","pip_added":true,"tool_version":"1.3_0.7.28","url":"https://conda.anaconda.org/conda-forge/noarch"}
info libmamba Metadata from solv are valid, loading successful
info libmamba Adding package record to repo __archspec
info libmamba Adding package record to repo __cuda
info libmamba Adding package record to repo __glibc
info libmamba Adding package record to repo __linux
info libmamba Adding package record to repo __unix
info libmamba Parsing MatchSpec _x86_64-microarch-level
info libmamba Parsing MatchSpec _x86_64-microarch-level
info libmamba Adding job: _x86_64-microarch-level
info libmamba Problem count: 1
info libmamba Parsing MatchSpec _x86_64-microarch-level
info libmamba Parsing MatchSpec __archspec 1 core2
info libmamba Parsing MatchSpec __archspec 1 core2
info libmamba Parsing MatchSpec __archspec 1 k10
info libmamba Parsing MatchSpec __archspec 1 k10
info libmamba Parsing MatchSpec __archspec 1 nocona
info libmamba Parsing MatchSpec __archspec 1 nocona
info libmamba Parsing MatchSpec __archspec 1 x86_64
info libmamba Parsing MatchSpec __archspec 1 x86_64
info libmamba Parsing MatchSpec __archspec 1 core2
info libmamba Parsing MatchSpec __archspec 1 core2
info libmamba Parsing MatchSpec __archspec 1 k10
info libmamba Parsing MatchSpec __archspec 1 k10
info libmamba Parsing MatchSpec __archspec 1 nocona
info libmamba Parsing MatchSpec __archspec 1 nocona
info libmamba Parsing MatchSpec __archspec 1 x86_64
info libmamba Parsing MatchSpec __archspec 1 x86_64
info libmamba Parsing MatchSpec __archspec 1 bulldozer
info libmamba Parsing MatchSpec __archspec 1 bulldozer
info libmamba Parsing MatchSpec __archspec 1 ivybridge
info libmamba Parsing MatchSpec __archspec 1 ivybridge
info libmamba Parsing MatchSpec __archspec 1 nehalem
info libmamba Parsing MatchSpec __archspec 1 nehalem
info libmamba Parsing MatchSpec __archspec 1 piledriver
info libmamba Parsing MatchSpec __archspec 1 piledriver
info libmamba Parsing MatchSpec __archspec 1 sandybridge
info libmamba Parsing MatchSpec __archspec 1 sandybridge
info libmamba Parsing MatchSpec __archspec 1 steamroller
info libmamba Parsing MatchSpec __archspec 1 steamroller
info libmamba Parsing MatchSpec __archspec 1 westmere
info libmamba Parsing MatchSpec __archspec 1 westmere
info libmamba Parsing MatchSpec __archspec 1 x86_64_v2
info libmamba Parsing MatchSpec __archspec 1 x86_64_v2
info libmamba Parsing MatchSpec __archspec 1 bulldozer
info libmamba Parsing MatchSpec __archspec 1 bulldozer
info libmamba Parsing MatchSpec __archspec 1 ivybridge
info libmamba Parsing MatchSpec __archspec 1 ivybridge
info libmamba Parsing MatchSpec __archspec 1 nehalem
info libmamba Parsing MatchSpec __archspec 1 nehalem
info libmamba Parsing MatchSpec __archspec 1 piledriver
info libmamba Parsing MatchSpec __archspec 1 piledriver
info libmamba Parsing MatchSpec __archspec 1 sandybridge
info libmamba Parsing MatchSpec __archspec 1 sandybridge
info libmamba Parsing MatchSpec __archspec 1 steamroller
info libmamba Parsing MatchSpec __archspec 1 steamroller
info libmamba Parsing MatchSpec __archspec 1 westmere
info libmamba Parsing MatchSpec __archspec 1 westmere
info libmamba Parsing MatchSpec __archspec 1 x86_64_v2
info libmamba Parsing MatchSpec __archspec 1 x86_64_v2
info libmamba Parsing MatchSpec __archspec 1 broadwell
info libmamba Parsing MatchSpec __archspec 1 broadwell
info libmamba Parsing MatchSpec __archspec 1 cannonlake
info libmamba Parsing MatchSpec __archspec 1 cannonlake
info libmamba Parsing MatchSpec __archspec 1 excavator
info libmamba Parsing MatchSpec __archspec 1 excavator
info libmamba Parsing MatchSpec __archspec 1 haswell
info libmamba Parsing MatchSpec __archspec 1 haswell
info libmamba Parsing MatchSpec __archspec 1 mic_knl
info libmamba Parsing MatchSpec __archspec 1 mic_knl
info libmamba Parsing MatchSpec __archspec 1 skylake
info libmamba Parsing MatchSpec __archspec 1 skylake
info libmamba Parsing MatchSpec __archspec 1 x86_64_v3
info libmamba Parsing MatchSpec __archspec 1 x86_64_v3
info libmamba Parsing MatchSpec __archspec 1 zen
info libmamba Parsing MatchSpec __archspec 1 zen
info libmamba Parsing MatchSpec __archspec 1 zen2
info libmamba Parsing MatchSpec __archspec 1 zen2
info libmamba Parsing MatchSpec __archspec 1 zen3
info libmamba Parsing MatchSpec __archspec 1 zen3
info libmamba Parsing MatchSpec __archspec 1 broadwell
info libmamba Parsing MatchSpec __archspec 1 broadwell
info libmamba Parsing MatchSpec __archspec 1 cannonlake
info libmamba Parsing MatchSpec __archspec 1 cannonlake
info libmamba Parsing MatchSpec __archspec 1 excavator
info libmamba Parsing MatchSpec __archspec 1 excavator
info libmamba Parsing MatchSpec __archspec 1 haswell
info libmamba Parsing MatchSpec __archspec 1 haswell
info libmamba Parsing MatchSpec __archspec 1 mic_knl
info libmamba Parsing MatchSpec __archspec 1 mic_knl
info libmamba Parsing MatchSpec __archspec 1 skylake
info libmamba Parsing MatchSpec __archspec 1 skylake
info libmamba Parsing MatchSpec __archspec 1 x86_64_v3
info libmamba Parsing MatchSpec __archspec 1 x86_64_v3
info libmamba Parsing MatchSpec __archspec 1 zen
info libmamba Parsing MatchSpec __archspec 1 zen
info libmamba Parsing MatchSpec __archspec 1 zen2
info libmamba Parsing MatchSpec __archspec 1 zen2
info libmamba Parsing MatchSpec __archspec 1 zen3
info libmamba Parsing MatchSpec __archspec 1 zen3
info libmamba Parsing MatchSpec __archspec 1 cascadelake
info libmamba Parsing MatchSpec __archspec 1 cascadelake
info libmamba Parsing MatchSpec __archspec 1 icelake
info libmamba Parsing MatchSpec __archspec 1 icelake
info libmamba Parsing MatchSpec __archspec 1 skylake_avx512
info libmamba Parsing MatchSpec __archspec 1 skylake_avx512
info libmamba Parsing MatchSpec __archspec 1 x86_64_v4
info libmamba Parsing MatchSpec __archspec 1 x86_64_v4
info libmamba Parsing MatchSpec __archspec 1 zen4
info libmamba Parsing MatchSpec __archspec 1 zen4
info libmamba Parsing MatchSpec __archspec 1 cascadelake
info libmamba Parsing MatchSpec __archspec 1 cascadelake
info libmamba Parsing MatchSpec __archspec 1 icelake
info libmamba Parsing MatchSpec __archspec 1 icelake
info libmamba Parsing MatchSpec __archspec 1 sapphirerapids
info libmamba Parsing MatchSpec __archspec 1 sapphirerapids
info libmamba Parsing MatchSpec __archspec 1 skylake_avx512
info libmamba Parsing MatchSpec __archspec 1 skylake_avx512
info libmamba Parsing MatchSpec __archspec 1 x86_64_v4
info libmamba Parsing MatchSpec __archspec 1 x86_64_v4
info libmamba Parsing MatchSpec __archspec 1 zen4
info libmamba Parsing MatchSpec __archspec 1 zen4
error libmamba Could not solve for environment specs
The following packages are incompatible
└─ _x86_64-microarch-level is not installable because there are no viable options
├─ _x86_64-microarch-level 1 would require
│ └─ __archspec 1 core2, which is missing on the system;
├─ _x86_64-microarch-level 1 would require
│ └─ __archspec 1 k10, which is missing on the system;
├─ _x86_64-microarch-level 1 would require
│ └─ __archspec 1 nocona, which is missing on the system;
├─ _x86_64-microarch-level 1 would require
│ └─ __archspec 1 x86_64, which is missing on the system;
├─ _x86_64-microarch-level 2 would require
│ └─ __archspec 1 bulldozer, which is missing on the system;
├─ _x86_64-microarch-level 2 would require
│ └─ __archspec 1 ivybridge, which is missing on the system;
├─ _x86_64-microarch-level 2 would require
│ └─ __archspec 1 nehalem, which is missing on the system;
├─ _x86_64-microarch-level 2 would require
│ └─ __archspec 1 piledriver, which is missing on the system;
├─ _x86_64-microarch-level 2 would require
│ └─ __archspec 1 sandybridge, which is missing on the system;
├─ _x86_64-microarch-level 2 would require
│ └─ __archspec 1 steamroller, which is missing on the system;
├─ _x86_64-microarch-level 2 would require
│ └─ __archspec 1 westmere, which is missing on the system;
├─ _x86_64-microarch-level 2 would require
│ └─ __archspec 1 x86_64_v2, which is missing on the system;
├─ _x86_64-microarch-level 3 would require
│ └─ __archspec 1 broadwell, which is missing on the system;
├─ _x86_64-microarch-level 3 would require
│ └─ __archspec 1 cannonlake, which is missing on the system;
├─ _x86_64-microarch-level 3 would require
│ └─ __archspec 1 excavator, which is missing on the system;
├─ _x86_64-microarch-level 3 would require
│ └─ __archspec 1 haswell, which is missing on the system;
├─ _x86_64-microarch-level 3 would require
│ └─ __archspec 1 mic_knl, which is missing on the system;
├─ _x86_64-microarch-level 3 would require
│ └─ __archspec 1 skylake, which is missing on the system;
├─ _x86_64-microarch-level 3 would require
│ └─ __archspec 1 x86_64_v3, which is missing on the system;
├─ _x86_64-microarch-level 3 would require
│ └─ __archspec 1 zen, which is missing on the system;
├─ _x86_64-microarch-level 3 would require
│ └─ __archspec 1 zen2, which is missing on the system;
├─ _x86_64-microarch-level 3 would require
│ └─ __archspec 1 zen3, which is missing on the system;
├─ _x86_64-microarch-level 4 would require
│ └─ __archspec 1 cascadelake, which is missing on the system;
├─ _x86_64-microarch-level 4 would require
│ └─ __archspec 1 icelake, which is missing on the system;
├─ _x86_64-microarch-level 4 would require
│ └─ __archspec 1 skylake_avx512, which is missing on the system;
├─ _x86_64-microarch-level 4 would require
│ └─ __archspec 1 x86_64_v4, which is missing on the system;
├─ _x86_64-microarch-level 4 would require
│ └─ __archspec 1 zen4, which is missing on the system;
└─ _x86_64-microarch-level 4 would require
└─ __archspec 1 sapphirerapids, which is missing on the system.
critical libmamba Could not solve for environment specs
(base) traversaro@IITBMP014LW012:~$ conda create -n test _x86_64-microarch-level
Channels:
- conda-forge
Platform: linux-64
Collecting package metadata (repodata.json): done
Solving environment: done
## Package Plan ##
environment location: /home/traversaro/miniforge3/envs/test
added / updated specs:
- _x86_64-microarch-level
The following NEW packages will be INSTALLED:
_x86_64-microarch~ conda-forge/noarch::_x86_64-microarch-level-3-1_skylake
Proceed ([y]/n)? y
Downloading and Extracting Packages:
Preparing transaction: done
Verifying transaction: done
Executing transaction: done
#
# To activate this environment, use
#
# $ conda activate test
#
# To deactivate an active environment, use
#
# $ conda deactivate
environment.yml
name: test
channels:
- conda-forge
dependencies:
- _x86_64-microarch-level
~/.condarc
(base) traversaro@IITBMP014LW012:~$ cat ~/.condarc
channels:
- conda-forge
auto_activate_base: false
I noticed that mamba info and conda info report as __archspec virtual package available __archspec=1=skylake, while micromamba reports __archspec=1=x86_64-v3, that perhaps could be the source behind the error. Probably this can be handled on the https://github.com/conda-forge/microarch-level-feedstock side, but I am not sure what is the best way forward on this.
I've found that my environments that require a __cuda package seem to fail. For example, I created https://github.com/conda-forge/staged-recipes/pull/26116 but the variant that is created with __cuda fails to solve for new environments.
mamba create --name t cupyifcudaavailable=*=cuda_* python=3.10
will fail with
Could not solve for environment specs
The following package could not be installed
└─ cupyifcudaavailable * cuda_* is not installable because it requires
└─ __cuda, which is missing on the system.
in fact, even after activating the environment, mamba will not recognize that one could "update" to the 100s level package to install .
conda with libmamba-solver seems to find the correct package.
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: https://github.com/mamba-org/mamba/blob/46036e19171df59d69a0e381b490f55c467ed718/libmamba/src/core/virtual_packages.cpp#L72
whereas conda uses heuristics based on typical installation paths: https://github.com/anaconda/conda/blob/0dbf85e0546e0b0dc060c8265ec936591ccbe980/conda/common/cuda.py#L5
I was able to install nvidia-smi to resolve my issue with the __cuda virtual package.
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
$ mamba list
# packages in environment at /home/mark/miniforge3:
#
# Name Version Build Channel
_libgcc_mutex 0.1 conda_forge conda-forge
_openmp_mutex 4.5 2_gnu conda-forge
anaconda-client 1.12.3 pyhd8ed1ab_0 conda-forge
anaconda-project 0.11.1 pyhd8ed1ab_0 conda-forge
anyio 3.7.1 pyhd8ed1ab_0 conda-forge
archspec 0.2.3 pyhd8ed1ab_0 conda-forge
attrs 23.2.0 pyh71513ae_0 conda-forge
backports 1.0 pyhd8ed1ab_3 conda-forge
backports.functools_lru_cache 2.0.0 pyhd8ed1ab_0 conda-forge
beautifulsoup4 4.12.3 pyha770c72_0 conda-forge
blinker 1.7.0 pyhd8ed1ab_0 conda-forge
boltons 24.0.0 pyhd8ed1ab_0 conda-forge
boolean.py 4.0 pyhd8ed1ab_0 conda-forge
brotli-python 1.1.0 py310hc6cd4ac_1 conda-forge
bzip2 1.0.8 hd590300_5 conda-forge
c-ares 1.28.1 hd590300_0 conda-forge
ca-certificates 2024.2.2 hbcca054_0 conda-forge
certifi 2024.2.2 pyhd8ed1ab_0 conda-forge
cffi 1.16.0 py310h2fee648_0 conda-forge
chardet 5.2.0 py310hff52083_1 conda-forge
charset-normalizer 3.3.2 pyhd8ed1ab_0 conda-forge
cirun 0.30 pyhd8ed1ab_0 conda-forge
click 8.1.7 unix_pyh707e725_0 conda-forge
clyent 1.2.2 pyhd8ed1ab_2 conda-forge
colorama 0.4.6 pyhd8ed1ab_0 conda-forge
conda 23.1.0 py310hff52083_0 conda-forge
conda-build 3.24.0 py310hff52083_1 conda-forge
conda-forge-pinning 2024.04.21.17.21.54 hd8ed1ab_0 conda-forge
conda-index 0.4.0 pyhd8ed1ab_0 conda-forge
conda-libmamba-solver 23.1.0 pyhd8ed1ab_0 conda-forge
conda-pack 0.7.1 pyhd8ed1ab_0 conda-forge
conda-package-handling 2.2.0 pyh38be061_0 conda-forge
conda-package-streaming 0.9.0 pyhd8ed1ab_0 conda-forge
conda-smithy 3.34.1 pyhd8ed1ab_0 conda-forge
cryptography 42.0.5 py310h75e40e8_0 conda-forge
curl 8.7.1 hca28451_0 conda-forge
dataclasses 0.8 pyhc8e2a94_3 conda-forge
dbus 1.13.6 h5008d03_3 conda-forge
defusedxml 0.7.1 pyhd8ed1ab_0 conda-forge
deprecated 1.2.14 pyh1a96a4e_0 conda-forge
distlib 0.3.8 pyhd8ed1ab_0 conda-forge
distro 1.9.0 pyhd8ed1ab_0 conda-forge
editables 0.5 pyhd8ed1ab_0 conda-forge
exceptiongroup 1.2.0 pyhd8ed1ab_2 conda-forge
expat 2.6.2 h59595ed_0 conda-forge
filelock 3.13.4 pyhd8ed1ab_0 conda-forge
fmt 9.1.0 h924138e_0 conda-forge
freetype 2.12.1 h267a509_2 conda-forge
gettext 0.22.5 h59595ed_2 conda-forge
gettext-tools 0.22.5 h59595ed_2 conda-forge
git 2.44.0 pl5321h709897a_0 conda-forge
gitdb 4.0.11 pyhd8ed1ab_0 conda-forge
gitpython 3.1.43 pyhd8ed1ab_0 conda-forge
glob2 0.7 py_0 conda-forge
gmp 6.3.0 h59595ed_1 conda-forge
h11 0.14.0 pyhd8ed1ab_0 conda-forge
h2 4.1.0 pyhd8ed1ab_0 conda-forge
hatch 1.9.4 pyhd8ed1ab_0 conda-forge
hatchling 1.21.1 pyhd8ed1ab_0 conda-forge
hpack 4.0.0 pyh9f0ad1d_0 conda-forge
httpcore 1.0.5 pyhd8ed1ab_0 conda-forge
httpx 0.27.0 pyhd8ed1ab_0 conda-forge
hyperframe 6.0.1 pyhd8ed1ab_0 conda-forge
hyperlink 21.0.0 pyhd3deb0d_0 conda-forge
icu 73.2 h59595ed_0 conda-forge
idna 3.7 pyhd8ed1ab_0 conda-forge
importlib-metadata 7.1.0 pyha770c72_0 conda-forge
importlib_metadata 7.1.0 hd8ed1ab_0 conda-forge
importlib_resources 6.4.0 pyhd8ed1ab_0 conda-forge
isodate 0.6.1 pyhd8ed1ab_0 conda-forge
jaraco.classes 3.4.0 pyhd8ed1ab_0 conda-forge
jaraco.context 4.3.0 pyhd8ed1ab_0 conda-forge
jaraco.functools 4.0.0 pyhd8ed1ab_0 conda-forge
jeepney 0.8.0 pyhd8ed1ab_0 conda-forge
jinja2 3.1.3 pyhd8ed1ab_0 conda-forge
joblib 1.4.0 pyhd8ed1ab_0 conda-forge
json5 0.9.25 pyhd8ed1ab_0 conda-forge
jsonpatch 1.33 pyhd8ed1ab_0 conda-forge
jsonpointer 2.4 py310hff52083_3 conda-forge
jsonschema 4.21.1 pyhd8ed1ab_0 conda-forge
jsonschema-specifications 2023.12.1 pyhd8ed1ab_0 conda-forge
jupyter_core 5.7.2 py310hff52083_0 conda-forge
keyring 25.1.0 pyha804496_0 conda-forge
keyutils 1.6.1 h166bdaf_0 conda-forge
krb5 1.21.2 h659d440_0 conda-forge
lcms2 2.16 hb7c19ff_0 conda-forge
ld_impl_linux-64 2.40 h41732ed_0 conda-forge
lerc 4.0.0 h27087fc_0 conda-forge
libarchive 3.6.2 h039dbb9_1 conda-forge
libasprintf 0.22.5 h661eb56_2 conda-forge
libasprintf-devel 0.22.5 h661eb56_2 conda-forge
libcurl 8.7.1 hca28451_0 conda-forge
libdeflate 1.20 hd590300_0 conda-forge
libedit 3.1.20191231 he28a2e2_2 conda-forge
libev 4.33 hd590300_2 conda-forge
libexpat 2.6.2 h59595ed_0 conda-forge
libffi 3.4.2 h7f98852_5 conda-forge
libgcc-ng 13.2.0 h807b86a_5 conda-forge
libgettextpo 0.22.5 h59595ed_2 conda-forge
libgettextpo-devel 0.22.5 h59595ed_2 conda-forge
libglib 2.80.0 hf2295e7_6 conda-forge
libgomp 13.2.0 h807b86a_5 conda-forge
libiconv 1.17 hd590300_2 conda-forge
libjpeg-turbo 3.0.0 hd590300_1 conda-forge
liblief 0.12.3 h27087fc_0 conda-forge
libmamba 1.4.5 h658169a_0 conda-forge
libmambapy 1.4.5 py310h8aae740_0 conda-forge
libnghttp2 1.58.0 h47da74e_1 conda-forge
libnsl 2.0.1 hd590300_0 conda-forge
libpng 1.6.43 h2797004_0 conda-forge
libsodium 1.0.18 h36c2ea0_1 conda-forge
libsolv 0.7.28 hfc55251_2 conda-forge
libsqlite 3.45.3 h2797004_0 conda-forge
libssh2 1.11.0 h0841786_0 conda-forge
libstdcxx-ng 13.2.0 h7e041cc_5 conda-forge
libtiff 4.6.0 h1dd3fc0_3 conda-forge
libuuid 2.38.1 h0b41bf4_0 conda-forge
libwebp-base 1.4.0 hd590300_0 conda-forge
libxcb 1.15 h0b41bf4_0 conda-forge
libxcrypt 4.4.36 hd590300_1 conda-forge
libxml2 2.12.6 h232c23b_2 conda-forge
libzlib 1.2.13 hd590300_5 conda-forge
license-expression 30.1.1 pyhd8ed1ab_0 conda-forge
lz4-c 1.9.4 hcb278e6_0 conda-forge
lzo 2.10 hd590300_1001 conda-forge
mamba 1.4.5 py310h51d5547_0 conda-forge
markdown-it-py 3.0.0 pyhd8ed1ab_0 conda-forge
markupsafe 2.1.5 py310h2372a71_0 conda-forge
mdurl 0.1.2 pyhd8ed1ab_0 conda-forge
menuinst 2.0.2 py310hff52083_0 conda-forge
more-itertools 10.2.0 pyhd8ed1ab_0 conda-forge
msrest 0.6.21 pyh44b312d_0 conda-forge
nbformat 5.10.4 pyhd8ed1ab_0 conda-forge
ncurses 6.4.20240210 h59595ed_0 conda-forge
oauthlib 3.2.2 pyhd8ed1ab_0 conda-forge
openjpeg 2.5.2 h488ebb8_0 conda-forge
openssl 3.2.1 hd590300_1 conda-forge
packaging 24.0 pyhd8ed1ab_0 conda-forge
patch 2.7.6 h7f98852_1002 conda-forge
patchelf 0.18.0 h59595ed_1 conda-forge
pathspec 0.12.1 pyhd8ed1ab_0 conda-forge
pcre2 10.43 hcad00b1_0 conda-forge
perl 5.32.1 7_hd590300_perl5 conda-forge
pexpect 4.9.0 pyhd8ed1ab_0 conda-forge
pillow 10.3.0 py310hf73ecf8_0 conda-forge
pip 24.0 pyhd8ed1ab_0 conda-forge
pkginfo 1.10.0 pyhd8ed1ab_0 conda-forge
pkgutil-resolve-name 1.3.10 pyhd8ed1ab_1 conda-forge
platformdirs 4.2.0 pyhd8ed1ab_0 conda-forge
pluggy 1.5.0 pyhd8ed1ab_0 conda-forge
prompt-toolkit 3.0.42 pyha770c72_0 conda-forge
prompt_toolkit 3.0.42 hd8ed1ab_0 conda-forge
psutil 5.9.8 py310h2372a71_0 conda-forge
pthread-stubs 0.4 h36c2ea0_1001 conda-forge
ptyprocess 0.7.0 pyhd3deb0d_0 conda-forge
py-lief 0.12.3 py310hd8f1fbe_0 conda-forge
pybind11-abi 4 hd8ed1ab_3 conda-forge
pycosat 0.6.6 py310h2372a71_0 conda-forge
pycparser 2.22 pyhd8ed1ab_0 conda-forge
pycryptodome 3.20.0 py310hb0f0acc_0 conda-forge
pygithub 2.3.0 pyhd8ed1ab_0 conda-forge
pygments 2.17.2 pyhd8ed1ab_0 conda-forge
pyjwt 2.8.0 pyhd8ed1ab_1 conda-forge
pynacl 1.5.0 py310h2372a71_3 conda-forge
pyopenssl 24.0.0 pyhd8ed1ab_0 conda-forge
pyperclip 1.8.2 pyhd8ed1ab_2 conda-forge
pysocks 1.7.1 pyha2e5f31_6 conda-forge
python 3.10.14 hd12c33a_0_cpython conda-forge
python-dateutil 2.9.0 pyhd8ed1ab_0 conda-forge
python-fastjsonschema 2.19.1 pyhd8ed1ab_0 conda-forge
python-libarchive-c 5.1 py310hff52083_0 conda-forge
python_abi 3.10 4_cp310 conda-forge
pytz 2024.1 pyhd8ed1ab_0 conda-forge
pyyaml 6.0.1 py310h2372a71_1 conda-forge
readline 8.2 h8228510_1 conda-forge
referencing 0.34.0 pyhd8ed1ab_0 conda-forge
reproc 14.2.4.post0 hd590300_1 conda-forge
reproc-cpp 14.2.4.post0 h59595ed_1 conda-forge
requests 2.31.0 pyhd8ed1ab_0 conda-forge
requests-oauthlib 2.0.0 pyhd8ed1ab_0 conda-forge
requests-toolbelt 1.0.0 pyhd8ed1ab_0 conda-forge
rich 13.7.1 pyhd8ed1ab_0 conda-forge
ripgrep 14.1.0 he8a937b_0 conda-forge
rpds-py 0.18.0 py310hcb5633a_0 conda-forge
ruamel.yaml 0.17.40 py310h2372a71_0 conda-forge
ruamel.yaml.clib 0.2.8 py310h2372a71_0 conda-forge
ruamel_yaml 0.15.80 py310h2372a71_1009 conda-forge
scrypt 0.8.24 py310hd2d1899_0 conda-forge
secretstorage 3.3.3 py310hff52083_2 conda-forge
setuptools 69.5.1 pyhd8ed1ab_0 conda-forge
shellingham 1.5.4 pyhd8ed1ab_0 conda-forge
six 1.16.0 pyh6c4a22f_0 conda-forge
smmap 5.0.0 pyhd8ed1ab_0 conda-forge
sniffio 1.3.1 pyhd8ed1ab_0 conda-forge
soupsieve 2.5 pyhd8ed1ab_1 conda-forge
tk 8.6.13 noxft_h4845f30_101 conda-forge
tomli 2.0.1 pyhd8ed1ab_0 conda-forge
tomli-w 1.0.0 pyhd8ed1ab_0 conda-forge
tomlkit 0.12.4 pyha770c72_0 conda-forge
toolz 0.12.1 pyhd8ed1ab_0 conda-forge
tornado 6.4 py310h2372a71_0 conda-forge
tqdm 4.66.2 pyhd8ed1ab_0 conda-forge
traitlets 5.14.3 pyhd8ed1ab_0 conda-forge
trove-classifiers 2024.4.10 pyhd8ed1ab_0 conda-forge
truststore 0.8.0 pyhd8ed1ab_0 conda-forge
typer 0.12.3 pyhd8ed1ab_0 conda-forge
typer-slim 0.12.3 pyhd8ed1ab_0 conda-forge
typer-slim-standard 0.12.3 hd8ed1ab_0 conda-forge
typing-extensions 4.11.0 hd8ed1ab_0 conda-forge
typing_extensions 4.11.0 pyha770c72_0 conda-forge
tzdata 2024a h0c530f3_0 conda-forge
urllib3 2.2.1 pyhd8ed1ab_0 conda-forge
userpath 1.7.0 pyhd8ed1ab_0 conda-forge
virtualenv 20.25.3 pyhd8ed1ab_0 conda-forge
vsts-python-api 0.1.25 pyhd8ed1ab_1 conda-forge
watchgod 0.8.2 pyhd8ed1ab_0 conda-forge
wcwidth 0.2.13 pyhd8ed1ab_0 conda-forge
wheel 0.43.0 pyhd8ed1ab_1 conda-forge
wrapt 1.16.0 py310h2372a71_0 conda-forge
xorg-libxau 1.0.11 hd590300_0 conda-forge
xorg-libxdmcp 1.1.3 h7f98852_0 conda-forge
xz 5.2.6 h166bdaf_0 conda-forge
yaml 0.2.5 h7f98852_2 conda-forge
yaml-cpp 0.7.0 h59595ed_3 conda-forge
zipp 3.17.0 pyhd8ed1ab_0 conda-forge
zstandard 0.22.0 py310h1275a96_0 conda-forge
zstd 1.5.5 hfc55251_0 conda-forge
Environment resolution with the command
mamba create --name t __cuda
succeeds with:
conda-forge/noarch 14.4MB @ 10.4MB/s 1.5s
Transaction
Prefix: /home/mark/miniforge3/envs/t
All requested packages already installed
Preparing transaction: done
Verifying transaction: done
Executing transaction: done
To activate this environment, use
$ mamba activate t
To deactivate an active environment, use
$ mamba deactivate
Then updating mamba to 1.4.6 and running the same command:
$ mamba install "mamba=1.4.6" --yes && mamba --version && mamba create --name t_1.4.6 __cuda
Looking for: ['mamba=1.4.6']
conda-forge/noarch 16.6MB @ 6.1MB/s 2.8s
conda-forge/linux-64 39.7MB @ 6.2MB/s 7.9s
Pinned packages:
- python 3.10.*
Transaction
Prefix: /home/mark/miniforge3
Updating specs:
- mamba=1.4.6
- ca-certificates
- certifi
- openssl
Package Version Build Channel Size
──────────────────────────────────────────────────────────────────
Upgrade:
──────────────────────────────────────────────────────────────────
- libmamba 1.4.5 h658169a_0 conda-forge
+ libmamba 1.4.6 h658169a_0 conda-forge Cached
- libmambapy 1.4.5 py310h8aae740_0 conda-forge
+ libmambapy 1.4.6 py310h8aae740_0 conda-forge Cached
- mamba 1.4.5 py310h51d5547_0 conda-forge
+ mamba 1.4.6 py310h51d5547_0 conda-forge Cached
Summary:
Upgrade: 3 packages
Total download: 0 B
──────────────────────────────────────────────────────────────────
Downloading and Extracting Packages
Preparing transaction: done
Verifying transaction: done
Executing transaction: done
mamba 1.4.6
conda 23.1.0
Looking for: ['__cuda']
conda-forge/noarch 16.6MB @ 6.8MB/s 2.6s
conda-forge/linux-64 39.7MB @ 5.4MB/s 8.9s
Could not solve for environment specs
The following package could not be installed
└─ __cuda is missing on the system.
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 https://github.com/conda-forge/conda-forge.github.io/issues/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 x86_64-microarch-level dependency in unix and x86_64 and microarch_level == 1 builds, so that the downside in mamba will remain that you can't install AVX2 or higher builds, that may be more acceptable as downside.
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 graph-tool package works fine on conda, but fails on mamba.
conda:
traversaro@IITBMP014LW012:~$ conda create -n graph-tool graph-tool==2.77.*
Channels:
- conda-forge
Platform: linux-64
Collecting package metadata (repodata.json): done
Solving environment: done
==> WARNING: A newer version of conda exists. <==
current version: 24.3.0
latest version: 24.7.1
Please update conda by running
$ conda update -n base -c conda-forge conda
## Package Plan ##
environment location: /home/traversaro/miniforge3/envs/graph-tool
added / updated specs:
- graph-tool=2.77
The following packages will be downloaded:
[...]
mamba:
traversaro@IITBMP014LW012:~$ mamba create -n graph-tool graph-tool==2.77.*
Looking for: ['graph-tool=2.77']
warning libmamba Could not parse mod/etag header
warning libmamba Could not parse mod/etag header
conda-forge/noarch 16.0MB @ 638.8kB/s 25.0s
conda-forge/linux-64 36.9MB @ 1.1MB/s 32.2s
Could not solve for environment specs
The following packages are incompatible
└─ graph-tool 2.77** is not installable because there are no viable options
├─ graph-tool 2.77 would require
│ └─ graph-tool-base [2.77 py310h9e900f9_300|2.77 py311haefbb00_300|2.77 py312h24de238_300|2.77 py38h8c1b0d4_300|2.77 py39hf24311c_300], which requires
│ └─ _x86_64-microarch-level >=3 but there are no viable options
│ ├─ _x86_64-microarch-level 3 would require
│ │ └─ __archspec 1 broadwell, which is missing on the system;
│ ├─ _x86_64-microarch-level 3 would require
│ │ └─ __archspec 1 cannonlake, which is missing on the system;
│ ├─ _x86_64-microarch-level 3 would require
│ │ └─ __archspec 1 excavator, which is missing on the system;
│ ├─ _x86_64-microarch-level 3 would require
│ │ └─ __archspec 1 haswell, which is missing on the system;
│ ├─ _x86_64-microarch-level 3 would require
│ │ └─ __archspec 1 mic_knl, which is missing on the system;
│ ├─ _x86_64-microarch-level 3 would require
│ │ └─ __archspec 1 skylake, which is missing on the system;
│ ├─ _x86_64-microarch-level 3 would require
│ │ └─ __archspec 1 x86_64_v3, which is missing on the system;
│ ├─ _x86_64-microarch-level 3 would require
│ │ └─ __archspec 1 zen, which is missing on the system;
│ ├─ _x86_64-microarch-level 3 would require
│ │ └─ __archspec 1 zen2, which is missing on the system;
│ ├─ _x86_64-microarch-level 3 would require
│ │ └─ __archspec 1 zen3, which is missing on the system;
│ ├─ _x86_64-microarch-level 4 would require
│ │ └─ __archspec 1 cascadelake, which is missing on the system;
│ ├─ _x86_64-microarch-level 4 would require
│ │ └─ __archspec 1 icelake, which is missing on the system;
│ ├─ _x86_64-microarch-level 4 would require
│ │ └─ __archspec 1 skylake_avx512, which is missing on the system;
│ ├─ _x86_64-microarch-level 4 would require
│ │ └─ __archspec 1 x86_64_v4, which is missing on the system;
│ ├─ _x86_64-microarch-level 4 would require
│ │ └─ __archspec 1 zen4, which is missing on the system;
│ └─ _x86_64-microarch-level 4 would require
│ └─ __archspec 1 sapphirerapids, which is missing on the system;
├─ graph-tool 2.77 would require
│ └─ graph-tool-base [2.77 py310hc5c3ccb_100|2.77 py311h0951e8c_100|2.77 py312h7379947_100|2.77 py38hee84d54_100|2.77 py39h45f8f1b_100], which requires
│ └─ _x86_64-microarch-level >=1 but there are no viable options
│ ├─ _x86_64-microarch-level 1 would require
│ │ └─ __archspec 1 core2, which is missing on the system;
│ ├─ _x86_64-microarch-level 1 would require
│ │ └─ __archspec 1 k10, which is missing on the system;
│ ├─ _x86_64-microarch-level 1 would require
│ │ └─ __archspec 1 nocona, which is missing on the system;
│ ├─ _x86_64-microarch-level 1 would require
│ │ └─ __archspec 1 x86_64, which is missing on the system;
│ ├─ _x86_64-microarch-level 2 would require
│ │ └─ __archspec 1 bulldozer, which is missing on the system;
│ ├─ _x86_64-microarch-level 2 would require
│ │ └─ __archspec 1 ivybridge, which is missing on the system;
│ ├─ _x86_64-microarch-level 2 would require
│ │ └─ __archspec 1 nehalem, which is missing on the system;
│ ├─ _x86_64-microarch-level 2 would require
│ │ └─ __archspec 1 piledriver, which is missing on the system;
│ ├─ _x86_64-microarch-level 2 would require
│ │ └─ __archspec 1 sandybridge, which is missing on the system;
│ ├─ _x86_64-microarch-level 2 would require
│ │ └─ __archspec 1 steamroller, which is missing on the system;
│ ├─ _x86_64-microarch-level 2 would require
│ │ └─ __archspec 1 westmere, which is missing on the system;
│ ├─ _x86_64-microarch-level 2 would require
│ │ └─ __archspec 1 x86_64_v2, which is missing on the system;
│ ├─ _x86_64-microarch-level 3, which cannot be installed (as previously explained);
│ ├─ _x86_64-microarch-level 3, which cannot be installed (as previously explained);
│ ├─ _x86_64-microarch-level 3, which cannot be installed (as previously explained);
│ ├─ _x86_64-microarch-level 3, which cannot be installed (as previously explained);
│ ├─ _x86_64-microarch-level 3, which cannot be installed (as previously explained);
│ ├─ _x86_64-microarch-level 3, which cannot be installed (as previously explained);
│ ├─ _x86_64-microarch-level 3, which cannot be installed (as previously explained);
│ ├─ _x86_64-microarch-level 3, which cannot be installed (as previously explained);
│ ├─ _x86_64-microarch-level 3, which cannot be installed (as previously explained);
│ ├─ _x86_64-microarch-level 3, which cannot be installed (as previously explained);
│ ├─ _x86_64-microarch-level 4, which cannot be installed (as previously explained);
│ ├─ _x86_64-microarch-level 4, which cannot be installed (as previously explained);
│ ├─ _x86_64-microarch-level 4, which cannot be installed (as previously explained);
│ ├─ _x86_64-microarch-level 4, which cannot be installed (as previously explained);
│ ├─ _x86_64-microarch-level 4, which cannot be installed (as previously explained);
│ └─ _x86_64-microarch-level 4, which cannot be installed (as previously explained);
└─ graph-tool 2.77 would require
└─ graph-tool-base [2.77 py310h6300a93_400|2.77 py311hf115aa5_400|2.77 py312h71012fb_400|2.77 py38h33ea7c3_400|2.77 py39heddc103_400], which requires
└─ _x86_64-microarch-level 4.* , which cannot be installed (as previously explained).
By looking a bit more into this, the problems seems that mamba reports generic microarch as x86_64-v3 (see https://github.com/mamba-org/mamba/blob/83fdeae46572a05a1657395cccccbab74e8710d3/libmamba/src/core/virtual_packages.cpp#L177-L191), while conda force expects 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
x86_64_v3which is compliant with archspec.
Thanks, done in https://github.com/mamba-org/mamba/pull/3404 .