Opened 5 hours ago

Last modified 111 minutes ago

#19816 assigned defect

Isolde sim start: no registered Platform called "OpenCL"

Reported by: donohue@… Owned by: Tristan Croll
Priority: normal Milestone:
Component: Third Party Version:
Keywords: Cc:
Blocked By: Blocking:
Notify when closed: Platform: all
Project: ChimeraX

Description 

The following bug report has been submitted:
Platform:        Linux-6.8.0-94-generic-x86_64-with-glibc2.35
ChimeraX Version: 1.9 (2024-12-11 19:11:19 UTC)
Description
Isolde cant find platform CL 

Log:
Startup Messages  
---  
note | available bundle cache has not been initialized yet  
  
UCSF ChimeraX version: 1.9 (2024-12-11)  
© 2016-2024 Regents of the University of California. All rights reserved.  
How to cite UCSF ChimeraX  

> open J309_mRNA_10_21_25A.pdb

Summary of feedback from opening J309_mRNA_10_21_25A.pdb  
---  
warnings | Ignored bad PDB record found on line 1  
REMARK Written by O version 14.1.0  
  
Ignored bad PDB record found on line 2  
REMARK Tue Oct 21 17:04:06 2025  
  
Chain information for J309_mRNA_10_21_25A.pdb #1  
---  
Chain | Description  
? | No description available  
  
Computing secondary structure  

> ui tool show Registration

Thank you for registering your copy of ChimeraX. By providing the information
requested you will be helping us document the impact this software is having
in the scientific community. The information you supplied will only be used
for reporting summary usage statistics; no individual data will be released.  
donohue@ucsc.edu has been invited to the ChimeraX announcements list  

> open /home/donohue/P18_J309_voxel_adj_712.ccp4

Opened P18_J309_voxel_adj_712.ccp4 as #2, grid size 600,600,600, pixel 0.712,
shown at level 0.0728, step 4, values float32  

> isolde start

> set selectionWidth 4

Done loading forcefield  

> isolde set simFidelityMode Medium/Medium

ISOLDE: setting sim fidelity mode to Medium/Medium  
nonbonded_cutoff_distance = 0.900000  
use_gbsa = True  
gbsa_cutoff = 1.100000  
ISOLDE: Checking and correcting nomenclature for (pseudo)symmetric side
chains...  
Chain information for J309_mRNA_10_21_25A.pdb  
---  
Chain | Description  
1.2/? | No description available  
  

> clipper associate #2 toModel #1

Opened P18_J309_voxel_adj_712.ccp4 as #1.1.1.1, grid size 600,600,600, pixel
0.712, shown at step 1, values float32  

> isolde sim start /*

Sim termination reason: None  
ISOLDE: stopped sim  

> addh #1.2

Summary of feedback from adding hydrogens to J309_mRNA_10_21_25A.pdb #1.2  
---  
warning | Not adding hydrogens to /? U 29 P because it is missing heavy-atom bond partners  
notes | No usable SEQRES records for J309_mRNA_10_21_25A.pdb (#1.2) chain (blank); guessing termini instead  
Chain-initial residues that are actual N termini:  
Chain-initial residues that are not actual N termini:  
Chain-final residues that are actual C termini:  
Chain-final residues that are not actual C termini:  
77 hydrogen bonds  
571 hydrogens added  
  

> isolde sim start /*

Launching using CUDA failed with the below message. Falling back to using
OpenCL.  
  
Error initializing CUDA: CUDA_ERROR_NO_DEVICE (100) at
/home/tcroll/openmm_build_env/openmm/platforms/cuda/src/CudaContext.cpp:140  

Traceback (most recent call last):  
File "/home/donohue/.local/share/ChimeraX/1.9/lib/python3.11/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1432, in start_sim  
self._prepare_sim()  
File "/home/donohue/.local/share/ChimeraX/1.9/lib/python3.11/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1377, in
_prepare_sim  
s = self._simulation = app.Simulation(self.topology, self._system,  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "/usr/lib/ucsf-chimerax/lib/python3.11/site-
packages/openmm/app/simulation.py", line 103, in __init__  
self.context = mm.Context(self.system, self.integrator, platform,
platformProperties)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "/usr/lib/ucsf-chimerax/lib/python3.11/site-packages/openmm/openmm.py",
line 5931, in __init__  
this = _openmm.new_Context(*args)  
^^^^^^^^^^^^^^^^^^^^^^^^^^  
openmm.OpenMMException: Error initializing CUDA: CUDA_ERROR_NO_DEVICE (100) at
/home/tcroll/openmm_build_env/openmm/platforms/cuda/src/CudaContext.cpp:140  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File "/usr/lib/ucsf-chimerax/lib/python3.11/site-
packages/chimerax/toolbar/tool.py", line 215, in callback  
bundle_info.run_provider(session, name, session.toolbar,
display_name=display_name)  
File "/usr/lib/ucsf-chimerax/lib/python3.11/site-
packages/chimerax/core/toolshed/info.py", line 397, in run_provider  
return api._api_caller.run_provider(api, session, name, mgr, **kw)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "/usr/lib/ucsf-chimerax/lib/python3.11/site-
packages/chimerax/core/toolshed/__init__.py", line 1419, in run_provider  
return cls._get_func(api, "run_provider")(session, name, mgr, **kw)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "/home/donohue/.local/share/ChimeraX/1.9/lib/python3.11/site-
packages/chimerax/isolde/__init__.py", line 184, in run_provider  
toolbar_command(session, name)  
File "/home/donohue/.local/share/ChimeraX/1.9/lib/python3.11/site-
packages/chimerax/isolde/toolbar.py", line 21, in toolbar_command  
run(session, f'isolde sim start {_current_residue_sel_string(session)}')  
File "/usr/lib/ucsf-chimerax/lib/python3.11/site-
packages/chimerax/core/commands/run.py", line 49, in run  
results = command.run(text, log=log, return_json=return_json)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "/usr/lib/ucsf-chimerax/lib/python3.11/site-
packages/chimerax/core/commands/cli.py", line 3213, in run  
result = ci.function(session, **kw_args)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "/home/donohue/.local/share/ChimeraX/1.9/lib/python3.11/site-
packages/chimerax/isolde/cmd/cmd.py", line 122, in isolde_sim  
isolde.start_sim()  
File "/home/donohue/.local/share/ChimeraX/1.9/lib/python3.11/site-
packages/chimerax/isolde/isolde.py", line 896, in start_sim  
sm.start_sim()  
File "/home/donohue/.local/share/ChimeraX/1.9/lib/python3.11/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 401, in start_sim  
sh.start_sim()  
File "/home/donohue/.local/share/ChimeraX/1.9/lib/python3.11/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1437, in start_sim  
self._prepare_sim()  
File "/home/donohue/.local/share/ChimeraX/1.9/lib/python3.11/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1364, in
_prepare_sim  
platform = openmm.Platform.getPlatformByName(params.platform)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "/usr/lib/ucsf-chimerax/lib/python3.11/site-packages/openmm/openmm.py",
line 11789, in getPlatformByName  
return _openmm.Platform_getPlatformByName(name)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
openmm.OpenMMException: There is no registered Platform called "OpenCL"  
  
openmm.OpenMMException: There is no registered Platform called "OpenCL"  
  
File "/usr/lib/ucsf-chimerax/lib/python3.11/site-packages/openmm/openmm.py",
line 11789, in getPlatformByName  
return _openmm.Platform_getPlatformByName(name)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
  
See log for complete Python traceback.  
  

Failed to send bug report. Error while sending follows:  

Traceback (most recent call last):  
File "/usr/lib/ucsf-chimerax/lib/python3.11/site-
packages/chimerax/bug_reporter/tool.py", line 249, in submit  
errcode, errmsg, headers, body = post_multipart_formdata(BUG_HOST,
BUG_SELECTOR, fields, timeout=10)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "/usr/lib/ucsf-chimerax/lib/python3.11/site-
packages/chimerax/webservices/post_form.py", line 45, in
post_multipart_formdata  
return r.status, r.msg, r.getheaders(), r.read()  
^^^^^^^^  
File "/usr/lib/ucsf-chimerax/lib/python3.11/http/client.py", line 482, in read  
s = self._safe_read(self.length)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "/usr/lib/ucsf-chimerax/lib/python3.11/http/client.py", line 633, in
_safe_read  
raise IncompleteRead(data, amt-len(data))  
http.client.IncompleteRead: IncompleteRead(666 bytes read, 6348 more expected)  

Failed to send bug report. Error while sending follows:  

Traceback (most recent call last):  
File "/usr/lib/ucsf-chimerax/lib/python3.11/site-
packages/chimerax/bug_reporter/tool.py", line 249, in submit  
errcode, errmsg, headers, body = post_multipart_formdata(BUG_HOST,
BUG_SELECTOR, fields, timeout=10)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "/usr/lib/ucsf-chimerax/lib/python3.11/site-
packages/chimerax/webservices/post_form.py", line 45, in
post_multipart_formdata  
return r.status, r.msg, r.getheaders(), r.read()  
^^^^^^^^  
File "/usr/lib/ucsf-chimerax/lib/python3.11/http/client.py", line 482, in read  
s = self._safe_read(self.length)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "/usr/lib/ucsf-chimerax/lib/python3.11/http/client.py", line 633, in
_safe_read  
raise IncompleteRead(data, amt-len(data))  
http.client.IncompleteRead: IncompleteRead(666 bytes read, 6348 more expected)  




OpenGL version: 4.5 (Core Profile) Mesa 23.2.1-1ubuntu3.1~22.04.3
OpenGL renderer: llvmpipe (LLVM 15.0.7, 256 bits)
OpenGL vendor: Mesa

Python: 3.11.4
Locale: en_US.UTF-8
Qt version: PyQt6 6.7.1, Qt 6.7.1
Qt runtime version: 6.7.3
Qt platform: xcb

XDG_SESSION_TYPE=x11
DESKTOP_SESSION=xubuntu
XDG_SESSION_DESKTOP=xubuntu
XDG_CURRENT_DESKTOP=XFCE
DISPLAY=:0.0
Manufacturer: TYAN
Model: B7105F48TV8HR-2T-G
OS: Ubuntu 22.04
Architecture: 64bit ELF
Virtual Machine: none
CPU: 32 Intel(R) Xeon(R) Silver 4110 CPU @ 2.10GHz
Cache Size: 11264 KB
Memory:
	               total        used        free      shared  buff/cache   available
	Mem:           188Gi       2.6Gi       178Gi        46Mi       7.9Gi       184Gi
	Swap:          2.0Gi          0B       2.0Gi

Graphics:
	04:00.0 VGA compatible controller [0300]: ASPEED Technology, Inc. ASPEED Graphics Family [1a03:2000] (rev 41)	
	Subsystem: ASPEED Technology, Inc. ASPEED Graphics Family [1a03:2000]	
	Kernel driver in use: ast

Installed Packages:
    alabaster: 1.0.0
    anyio: 4.7.0
    appdirs: 1.4.4
    asttokens: 3.0.0
    auditwheel: 6.1.0
    autocommand: 2.2.2
    babel: 2.16.0
    backports.tarfile: 1.2.0
    beautifulsoup4: 4.12.3
    blockdiag: 3.0.0
    blosc2: 3.0.0
    build: 1.2.1
    certifi: 2024.8.30
    cftime: 1.6.4.post1
    charset-normalizer: 3.4.0
    ChimeraX-AddCharge: 1.5.18
    ChimeraX-AddH: 2.2.6
    ChimeraX-AlignmentAlgorithms: 2.0.2
    ChimeraX-AlignmentHdrs: 3.5
    ChimeraX-AlignmentMatrices: 2.1
    ChimeraX-Alignments: 2.16.1
    ChimeraX-AlphaFold: 1.0.1
    ChimeraX-AltlocExplorer: 1.1.2
    ChimeraX-AmberInfo: 1.0
    ChimeraX-Arrays: 1.1
    ChimeraX-Atomic: 1.58.8
    ChimeraX-AtomicLibrary: 14.1.11
    ChimeraX-AtomSearch: 2.0.1
    ChimeraX-AxesPlanes: 2.4
    ChimeraX-BasicActions: 1.1.2
    ChimeraX-BILD: 1.0
    ChimeraX-BlastProtein: 3.0.0
    ChimeraX-BondRot: 2.0.4
    ChimeraX-BugReporter: 1.0.1
    ChimeraX-BuildStructure: 2.13.1
    ChimeraX-Bumps: 1.0
    ChimeraX-BundleBuilder: 1.4.0
    ChimeraX-ButtonPanel: 1.0.1
    ChimeraX-CageBuilder: 1.0.1
    ChimeraX-CellPack: 1.0
    ChimeraX-Centroids: 1.4
    ChimeraX-ChangeChains: 1.1
    ChimeraX-CheckWaters: 1.4
    ChimeraX-ChemGroup: 2.0.1
    ChimeraX-Clashes: 2.3
    ChimeraX-Clipper: 0.24.0
    ChimeraX-ColorActions: 1.0.5
    ChimeraX-ColorGlobe: 1.0
    ChimeraX-ColorKey: 1.5.6
    ChimeraX-CommandLine: 1.2.5
    ChimeraX-ConnectStructure: 2.0.1
    ChimeraX-Contacts: 1.0.1
    ChimeraX-Core: 1.9
    ChimeraX-CoreFormats: 1.2
    ChimeraX-coulombic: 1.4.4
    ChimeraX-Crosslinks: 1.0
    ChimeraX-Crystal: 1.0
    ChimeraX-CrystalContacts: 1.0.1
    ChimeraX-DataFormats: 1.2.3
    ChimeraX-Dicom: 1.2.6
    ChimeraX-DistMonitor: 1.4.2
    ChimeraX-DockPrep: 1.1.3
    ChimeraX-Dssp: 2.0
    ChimeraX-EMDB-SFF: 1.0
    ChimeraX-ESMFold: 1.0
    ChimeraX-FileHistory: 1.0.1
    ChimeraX-FunctionKey: 1.0.1
    ChimeraX-Geometry: 1.3
    ChimeraX-gltf: 1.0
    ChimeraX-Graphics: 1.4.1
    ChimeraX-Hbonds: 2.5
    ChimeraX-Help: 1.3
    ChimeraX-HKCage: 1.3
    ChimeraX-IHM: 1.1
    ChimeraX-ImageFormats: 1.2
    ChimeraX-IMOD: 1.0
    ChimeraX-IO: 1.0.3
    ChimeraX-ISOLDE: 1.9
    ChimeraX-ItemsInspection: 1.0.1
    ChimeraX-IUPAC: 1.0
    ChimeraX-KVFinder: 1.2.1
    ChimeraX-Label: 1.1.14
    ChimeraX-LinuxSupport: 1.0.1
    ChimeraX-ListInfo: 1.2.2
    ChimeraX-Log: 1.2
    ChimeraX-LookingGlass: 1.1
    ChimeraX-Maestro: 1.9.1
    ChimeraX-Map: 1.3
    ChimeraX-MapData: 2.0
    ChimeraX-MapEraser: 1.0.1
    ChimeraX-MapFilter: 2.0.1
    ChimeraX-MapFit: 2.0
    ChimeraX-MapSeries: 2.1.1
    ChimeraX-Markers: 1.0.1
    ChimeraX-Mask: 1.0.2
    ChimeraX-MatchMaker: 2.1.6
    ChimeraX-MCopy: 1.0
    ChimeraX-MDcrds: 2.7.2
    ChimeraX-MedicalToolbar: 1.1
    ChimeraX-Meeting: 1.0.1
    ChimeraX-MLP: 1.1.1
    ChimeraX-mmCIF: 2.14.2
    ChimeraX-MMTF: 2.2
    ChimeraX-ModelArchive: 1.0
    ChimeraX-Modeller: 1.5.18
    ChimeraX-ModelPanel: 1.5
    ChimeraX-ModelSeries: 1.0.1
    ChimeraX-Mol2: 2.0.3
    ChimeraX-Mole: 1.0
    ChimeraX-Morph: 1.0.2
    ChimeraX-MouseModes: 1.2
    ChimeraX-Movie: 1.0
    ChimeraX-MutationScores: 1.0
    ChimeraX-Neuron: 1.0
    ChimeraX-Nifti: 1.2
    ChimeraX-NMRSTAR: 1.0.2
    ChimeraX-NRRD: 1.2
    ChimeraX-Nucleotides: 2.0.3
    ChimeraX-OpenCommand: 1.14
    ChimeraX-OrthoPick: 1.0.1
    ChimeraX-PDB: 2.7.6
    ChimeraX-PDBBio: 1.0.1
    ChimeraX-PDBLibrary: 1.0.4
    ChimeraX-PDBMatrices: 1.0
    ChimeraX-PickBlobs: 1.0.1
    ChimeraX-Positions: 1.0
    ChimeraX-PresetMgr: 1.1.2
    ChimeraX-PubChem: 2.2
    ChimeraX-ReadPbonds: 1.0.1
    ChimeraX-Registration: 1.1.2
    ChimeraX-RemoteControl: 1.0
    ChimeraX-RenderByAttr: 1.6.2
    ChimeraX-RenumberResidues: 1.1
    ChimeraX-ResidueFit: 1.0.1
    ChimeraX-RestServer: 1.3.1
    ChimeraX-RNALayout: 1.0
    ChimeraX-RotamerLibMgr: 4.0
    ChimeraX-RotamerLibsDunbrack: 2.0
    ChimeraX-RotamerLibsDynameomics: 2.0
    ChimeraX-RotamerLibsRichardson: 2.0
    ChimeraX-SaveCommand: 1.5.1
    ChimeraX-SchemeMgr: 1.0
    ChimeraX-SDF: 2.0.2
    ChimeraX-Segger: 1.0
    ChimeraX-Segment: 1.0.1
    ChimeraX-Segmentations: 3.5.6
    ChimeraX-SelInspector: 1.0
    ChimeraX-SeqView: 2.14
    ChimeraX-Shape: 1.0.1
    ChimeraX-Shell: 1.0.1
    ChimeraX-Shortcuts: 1.2.0
    ChimeraX-ShowSequences: 1.0.3
    ChimeraX-SideView: 1.0.1
    ChimeraX-SimilarStructures: 1.0.1
    ChimeraX-Smiles: 2.1.2
    ChimeraX-SmoothLines: 1.0
    ChimeraX-SpaceNavigator: 1.0
    ChimeraX-StdCommands: 1.18.1
    ChimeraX-STL: 1.0.1
    ChimeraX-Storm: 1.0
    ChimeraX-StructMeasure: 1.2.1
    ChimeraX-Struts: 1.0.1
    ChimeraX-Surface: 1.0.1
    ChimeraX-SwapAA: 2.0.1
    ChimeraX-SwapRes: 2.5
    ChimeraX-TapeMeasure: 1.0
    ChimeraX-TaskManager: 1.0
    ChimeraX-Test: 1.0
    ChimeraX-Toolbar: 1.2.3
    ChimeraX-ToolshedUtils: 1.2.4
    ChimeraX-Topography: 1.0
    ChimeraX-ToQuest: 1.0
    ChimeraX-Tug: 1.0.1
    ChimeraX-UI: 1.41
    ChimeraX-Umap: 1.0
    ChimeraX-uniprot: 2.3.1
    ChimeraX-UnitCell: 1.0.1
    ChimeraX-ViewDockX: 1.4.4
    ChimeraX-VIPERdb: 1.0
    ChimeraX-Vive: 1.1
    ChimeraX-VolumeMenu: 1.0.1
    ChimeraX-vrml: 1.0
    ChimeraX-VTK: 1.0
    ChimeraX-WavefrontOBJ: 1.0
    ChimeraX-WebCam: 1.0.2
    ChimeraX-WebServices: 1.1.4
    ChimeraX-Zone: 1.0.1
    colorama: 0.4.6
    comm: 0.2.2
    contourpy: 1.3.1
    cxservices: 1.2.3
    cycler: 0.12.1
    Cython: 3.0.10
    debugpy: 1.8.9
    decorator: 5.1.1
    distro: 1.9.0
    docutils: 0.21.2
    executing: 2.1.0
    filelock: 3.15.4
    fonttools: 4.55.3
    funcparserlib: 2.0.0a0
    glfw: 2.8.0
    grako: 3.16.5
    h11: 0.14.0
    h5py: 3.12.1
    html2text: 2024.2.26
    httpcore: 1.0.7
    httpx: 0.28.1
    idna: 3.10
    ihm: 1.3
    imagecodecs: 2024.6.1
    imagesize: 1.4.1
    importlib_metadata: 8.0.0
    importlib_resources: 6.4.0
    inflect: 7.3.1
    ipykernel: 6.29.5
    ipython: 8.26.0
    ipywidgets: 8.1.5
    jaraco.context: 5.3.0
    jaraco.functools: 4.0.1
    jaraco.text: 3.12.1
    jedi: 0.19.1
    Jinja2: 3.1.4
    jupyter_client: 8.6.2
    jupyter_core: 5.7.2
    jupyterlab_widgets: 3.0.13
    kiwisolver: 1.4.7
    line_profiler: 4.1.3
    lxml: 5.2.2
    lz4: 4.3.3
    MarkupSafe: 3.0.2
    matplotlib: 3.9.2
    matplotlib-inline: 0.1.7
    more-itertools: 10.3.0
    msgpack: 1.0.8
    ndindex: 1.9.2
    nest-asyncio: 1.6.0
    netCDF4: 1.6.5
    networkx: 3.3
    nibabel: 5.2.0
    nptyping: 2.5.0
    numexpr: 2.10.2
    numpy: 1.26.4
    openvr: 1.26.701
    ordered-set: 4.1.0
    packaging: 23.2
    packaging: 24.1
    ParmEd: 4.2.2
    parso: 0.8.4
    pep517: 0.13.1
    pexpect: 4.9.0
    pillow: 10.4.0
    pip: 24.2
    pkginfo: 1.11.1
    platformdirs: 4.3.6
    platformdirs: 4.2.2
    prompt_toolkit: 3.0.48
    psutil: 6.0.0
    ptyprocess: 0.7.0
    pure_eval: 0.2.3
    py-cpuinfo: 9.0.0
    pycollada: 0.8
    pydicom: 2.4.4
    pyelftools: 0.31
    Pygments: 2.18.0
    pynmrstar: 3.3.4
    pynrrd: 1.0.0
    PyOpenGL: 3.1.7
    PyOpenGL-accelerate: 3.1.7
    pyopenxr: 1.0.3401
    pyparsing: 3.2.0
    pyproject_hooks: 1.2.0
    PyQt6-commercial: 6.7.1
    PyQt6-Qt6: 6.7.3
    PyQt6-WebEngine-commercial: 6.7.0
    PyQt6-WebEngine-Qt6: 6.7.3
    PyQt6-WebEngineSubwheel-Qt6: 6.7.3
    PyQt6_sip: 13.8.0
    python-dateutil: 2.9.0.post0
    pytz: 2024.2
    pyzmq: 26.2.0
    qtconsole: 5.5.2
    QtPy: 2.4.2
    qtshim: 1.0
    RandomWords: 0.4.0
    requests: 2.32.3
    scipy: 1.14.0
    setuptools: 72.1.0
    sfftk-rw: 0.8.1
    six: 1.16.0
    sniffio: 1.3.1
    snowballstemmer: 2.2.0
    sortedcontainers: 2.4.0
    soupsieve: 2.6
    Sphinx: 8.0.2
    sphinx-autodoc-typehints: 2.2.3
    sphinxcontrib-applehelp: 2.0.0
    sphinxcontrib-blockdiag: 3.0.0
    sphinxcontrib-devhelp: 2.0.0
    sphinxcontrib-htmlhelp: 2.1.0
    sphinxcontrib-jsmath: 1.0.1
    sphinxcontrib-qthelp: 2.0.0
    sphinxcontrib-serializinghtml: 2.0.0
    stack-data: 0.6.3
    superqt: 0.6.3
    tables: 3.10.1
    tcia_utils: 1.5.1
    tifffile: 2024.7.24
    tinyarray: 1.2.4
    tomli: 2.0.1
    tornado: 6.4.2
    traitlets: 5.14.3
    typeguard: 4.3.0
    typing_extensions: 4.12.2
    typing_extensions: 4.12.2
    tzdata: 2024.2
    urllib3: 2.2.3
    wcwidth: 0.2.13
    webcolors: 24.6.0
    wheel: 0.43.0
    wheel: 0.43.0
    wheel-filename: 1.4.1
    widgetsnbextension: 4.0.13
    zipp: 3.19.2

Change History (4)

comment:1 by Eric Pettersen, 4 hours ago

Component: Unassigned → Third Party
Owner: set to Tristan Croll
Platform: → all
Project: → ChimeraX
Status: new → assigned
Summary: ChimeraX bug report submission → Isolde sim start: no registered Platform called "OpenCL"

comment:2 by Tristan Croll, 3 hours ago 

There's something quite strange about your system configuration. You appear
to have CUDA installed, but no CUDA-capable GPU - and your machine is using
the CPU-only Mesa driver for graphics. Somehow the CUDA platform has
still loaded (I didn't actually think that was possible in these
circumstances), and failed on attempting to start a simulation with
CUDA_ERROR_NO_DEVICE. If the CUDA platform fails to work ISOLDE attempts to
fall back to the OpenCL platform, but in this case there is apparently *no*
OpenCL driver installed (again, something I thought was impossible with a
CUDA installation).

In any case, I'm afraid you're not going to get far with ISOLDE on this
machine - while it does successfully run on some on-board GPUs, it really
needs a CUDA-capable GPU to properly shine.

On Fri, Feb 6, 2026 at 5:23 PM ChimeraX <ChimeraX-bugs-admin@cgl.ucsf.edu>
wrote:

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comment:3 by donohue@…, 2 hours ago 

thanks,
reboot, update, reboot, reinstall drivers reboot got it going again thanks.
not sure when or why the drivers changed but it happens i guess
thanks
jpd

On Fri, Feb 6, 2026 at 9:53 AM ChimeraX <ChimeraX-bugs-admin@cgl.ucsf.edu>
wrote:

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comment:4 by Tristan Croll, 111 minutes ago 

Linux and Nvidia drivers. Always an adventure...

On Fri, Feb 6, 2026 at 7:00 PM ChimeraX <ChimeraX-bugs-admin@cgl.ucsf.edu>
wrote:

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