ptxas executable missing

[hmaarrfk]

So I'm seeing the same issue as:

https://github.com/tensorflow/tensorflow/issues/40036#issuecomment-774353012

I'm wondering if we should depend on cudatoolkit-dev. This ensures that the executable ptxas is available to tensorflow.

[jakirkham]

Not that's deprecated.

If you want to look at a more complete set of tooling, would take a look at the packages in issue ( https://github.com/conda-forge/cudatoolkit-feedstock/issues/62 ). Feedback there would also be welcome 🙂

[hmaarrfk]

can you elaborate if ptxas is deprecated or just cudatoolkit-dev

[h-vetinari]

I cannot elaborate on your question (though my belief is that just cudatoolkit-dev is deprecated, not ptxas), but just to note that ptxas also seems to be available in some form with the regular cudatoolkit. E.g. in the faiss feedstock, I constantly get log output of the form

ptxas /tmp/tmpxft_00000d54_00000000-5_PQScanMultiPassPrecomputed.compute_75.ptx, line 9649; warning : ld

but I'm not using anything unusual in terms of build setup.

[hmaarrfk]

cudatoolkit on its own doesn't seem to pull in ptxas for me:

Sample environment

``` $ mamba create --name cudatoolkit cudatoolkit=11.2 python=3.9 --yes __ __ __ __ / \ / \ / \ / \ / \/ \/ \/ \ ███████████████/ /██/ /██/ /██/ /████████████████████████ / / \ / \ / \ / \ \____ / / \_/ \_/ \_/ \ o \__, / _/ \_____/ ` |/ ███╗ ███╗ █████╗ ███╗ ███╗██████╗ █████╗ ████╗ ████║██╔══██╗████╗ ████║██╔══██╗██╔══██╗ ██╔████╔██║███████║██╔████╔██║██████╔╝███████║ ██║╚██╔╝██║██╔══██║██║╚██╔╝██║██╔══██╗██╔══██║ ██║ ╚═╝ ██║██║ ██║██║ ╚═╝ ██║██████╔╝██║ ██║ ╚═╝ ╚═╝╚═╝ ╚═╝╚═╝ ╚═╝╚═════╝ ╚═╝ ╚═╝ mamba (0.17.0) supported by @QuantStack GitHub: https://github.com/mamba-org/mamba Twitter: https://twitter.com/QuantStack █████████████████████████████████████████████████████████████ Looking for: ['cudatoolkit=11.2', 'python=3.9'] ramonaoptics/noarch [====================] (00m:00s) Done ramonaoptics/linux-64 [====================] (00m:00s) Done conda-forge/noarch [====================] (00m:01s) Done conda-forge/linux-64 [====================] (00m:07s) Done Transaction Prefix: /home/mark/miniforge3/envs/cudatoolkit Updating specs: - cudatoolkit=11.2 - python=3.9 Package Version Build Channel Size ─────────────────────────────────────────────────────────────────────────────────── Install: ─────────────────────────────────────────────────────────────────────────────────── + _libgcc_mutex 0.1 conda_forge conda-forge/linux-64 Cached + _openmp_mutex 4.5 1_gnu conda-forge/linux-64 Cached + ca-certificates 2021.10.8 ha878542_0 conda-forge/linux-64 Cached + cudatoolkit 11.2.2 he111cf0_9 conda-forge/linux-64 Cached + ld_impl_linux-64 2.36.1 hea4e1c9_2 conda-forge/linux-64 Cached + libffi 3.3 h58526e2_2 conda-forge/linux-64 Cached + libgcc-ng 11.2.0 h1d223b6_11 conda-forge/linux-64 Cached + libgomp 11.2.0 h1d223b6_11 conda-forge/linux-64 Cached + libstdcxx-ng 11.2.0 he4da1e4_11 conda-forge/linux-64 Cached + libzlib 1.2.11 h36c2ea0_1013 conda-forge/linux-64 Cached + ncurses 6.2 h58526e2_4 conda-forge/linux-64 Cached + openssl 1.1.1l h7f98852_0 conda-forge/linux-64 Cached + pip 21.3.1 pyhd8ed1ab_0 conda-forge/noarch Cached + python 3.9.6 h7c244ba_103 ramonaoptics/linux-64 Cached + python_abi 3.9 2_cp39 conda-forge/linux-64 Cached + setuptools 59.2.0 py39hf3d152e_0 conda-forge/linux-64 1 MB + sqlite 3.36.0 h495f6a3_100 ramonaoptics/linux-64 Cached + tk 8.6.11 h27826a3_1 conda-forge/linux-64 Cached + tzdata 2021e he74cb21_0 conda-forge/noarch Cached + wheel 0.37.0 pyhd8ed1ab_1 conda-forge/noarch Cached + xz 5.2.5 h516909a_1 conda-forge/linux-64 Cached + zlib 1.2.11 h36c2ea0_1013 conda-forge/linux-64 Cached Summary: Install: 22 packages Total download: 1 MB ─────────────────────────────────────────────────────────────────────────────────── Finished setuptools (00m:00s) 1 MB 2 MB/s Downloading [=============================================================================] (00m:00s) 2.32 MB/s Extracting [=============================================================================] (00m:00s) 1 / 1 Preparing transaction: done Verifying transaction: done Executing transaction: \ By downloading and using the CUDA Toolkit conda packages, you accept the terms and conditions of the CUDA End User License Agreement (EULA): https://docs.nvidia.com/cuda/eula/index.html done # # To activate this environment, use # # $ conda activate cudatoolkit # # To deactivate an active environment, use # # $ conda deactivate $ conda activate cudatoolkit (cudatoolkit) $ ptxas Command 'ptxas' not found, but can be installed with: sudo apt install nvidia-cuda-toolkit ```

[h-vetinari]

@hmaarrfk Could you raise an issue about this on the cudatoolkit feedstock? As John said, cudatoolkit-dev as a package is not gonna be acceptable anymore, I think.

[hmaarrfk]

will do. thanks