isolde start sim: RuntimeError: clEnqueueReadBuffer

[lehuetalex@…]

The following bug report has been submitted:
Platform:        Linux-6.14.0-27-generic-x86_64-with-glibc2.39
ChimeraX Version: 1.10.1 (2025-07-24 20:15:27 UTC)
Description
Replace this text with list of actions that caused this problem to occur

Log:
UCSF ChimeraX version: 1.10.1 (2025-07-24)  
© 2016-2025 Regents of the University of California. All rights reserved.  
How to cite UCSF ChimeraX  

> open /home/alex/Desktop/tuto_mbsb/12ft1_saved.pdb format pdb

Chain information for 12ft1_saved.pdb #1  
---  
Chain | Description  
A B C D E F G | No description available  
  

> split #1

Split 12ft1_saved.pdb (#1) into 7 models  
Chain information for 12ft1_saved.pdb A #1.1  
---  
Chain | Description  
A | No description available  
  
Chain information for 12ft1_saved.pdb B #1.2  
---  
Chain | Description  
B | No description available  
  
Chain information for 12ft1_saved.pdb C #1.3  
---  
Chain | Description  
C | No description available  
  
Chain information for 12ft1_saved.pdb D #1.4  
---  
Chain | Description  
D | No description available  
  
Chain information for 12ft1_saved.pdb E #1.5  
---  
Chain | Description  
E | No description available  
  
Chain information for 12ft1_saved.pdb F #1.6  
---  
Chain | Description  
F | No description available  
  
Chain information for 12ft1_saved.pdb G #1.7  
---  
Chain | Description  
G | No description available  
  

> close #1.2-7

> molmap #1 4

Opened 12ft1_saved.pdb A map 4 as #2, grid size 107,68,50, pixel 1.33, shown
at level 0.0886, step 1, values float32  

> volume #2 level 0.1913

> show cartoons

> hide atoms

> transparency 50

> isolde start

> set selectionWidth 4

Forcefield cache not found or out of date. Regenerating from ffXML files. This
is normal if running ISOLDE for the first time, or after upgrading OpenMM.  

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...  
ISOLDE: Corrected atom nomenclature of 22 residues in model #1.1 to IUPAC-IUB
standards.  
Chain information for 12ft1_saved.pdb A  
---  
Chain | Description  
3.2/A | No description available  
  
Cached rota8000-val data not found. Regenerating from text file. This is
normal if running ISOLDE for the first time  
Cached rota8000-leu data not found. Regenerating from text file. This is
normal if running ISOLDE for the first time  
Cached rota8000-ile data not found. Regenerating from text file. This is
normal if running ISOLDE for the first time  
Cached rota8000-pro data not found. Regenerating from text file. This is
normal if running ISOLDE for the first time  
Cached rota8000-phe data not found. Regenerating from text file. This is
normal if running ISOLDE for the first time  
Cached rota8000-tyr data not found. Regenerating from text file. This is
normal if running ISOLDE for the first time  
Cached rota8000-trp data not found. Regenerating from text file. This is
normal if running ISOLDE for the first time  
Cached rota8000-ser data not found. Regenerating from text file. This is
normal if running ISOLDE for the first time  
Cached rota8000-thr data not found. Regenerating from text file. This is
normal if running ISOLDE for the first time  
Cached rota8000-cys data not found. Regenerating from text file. This is
normal if running ISOLDE for the first time  
Cached rota8000-met data not found. Regenerating from text file. This is
normal if running ISOLDE for the first time  
Cached rota8000-lys data not found. Regenerating from text file. This is
normal if running ISOLDE for the first time  
Cached rota8000-his data not found. Regenerating from text file. This is
normal if running ISOLDE for the first time  
Cached rota8000-arg data not found. Regenerating from text file. This is
normal if running ISOLDE for the first time  
Cached rota8000-asp data not found. Regenerating from text file. This is
normal if running ISOLDE for the first time  
Cached rota8000-asn data not found. Regenerating from text file. This is
normal if running ISOLDE for the first time  
Cached rota8000-gln data not found. Regenerating from text file. This is
normal if running ISOLDE for the first time  
Cached rota8000-glu data not found. Regenerating from text file. This is
normal if running ISOLDE for the first time  
Cached rama8000-cispro data not found. Regenerating from text file. This is
normal if running ISOLDE for the first time  
Cached rama8000-transpro data not found. Regenerating from text file. This is
normal if running ISOLDE for the first time  
Cached rama8000-gly-sym data not found. Regenerating from text file. This is
normal if running ISOLDE for the first time  
Cached rama8000-prepro-noGP data not found. Regenerating from text file. This
is normal if running ISOLDE for the first time  
Cached rama8000-ileval-nopreP data not found. Regenerating from text file.
This is normal if running ISOLDE for the first time  
Cached rama8000-general-noGPIVpreP data not found. Regenerating from text
file. This is normal if running ISOLDE for the first time  

> clipper associate #2 toModel #3

Opened 12ft1_saved.pdb A map 4 as #3.1.1.1, grid size 107,68,50, pixel 1.33,
shown at step 1, values float32  

> isolde sim start /A

Sim termination reason: None  
ISOLDE: stopped sim  

> addh #3.2

Summary of feedback from adding hydrogens to 12ft1_saved.pdb A #3.2  
---  
notes | No usable SEQRES records for 12ft1_saved.pdb A (#3.2) chain A; guessing termini instead  
Chain-initial residues that are actual N termini: /A SER 104  
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: /A SER 383  
186 hydrogen bonds  
/A SER 383 is not terminus, removing H atom from 'C'  
2122 hydrogens added  
  

> isolde sim start /A

ISOLDE: started sim  
Traceback (most recent call last):  
File "/usr/lib/ucsf-chimerax/lib/python3.11/site-
packages/chimerax/core/triggerset.py", line 149, in invoke  
return self._func(self._name, data)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File "/home/alex/.local/share/ChimeraX/1.10/lib/python3.11/site-
packages/chimerax/isolde/delayed_reaction.py", line 81, in callback  
self.ff(*self.ff_args)  
File "/home/alex/.local/share/ChimeraX/1.10/lib/python3.11/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 1531, in
_update_coordinates_and_repeat  
self.atoms.coords = th.coords  
^^^^^^^^^  
File "/home/alex/.local/share/ChimeraX/1.10/lib/python3.11/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 101, in coords  
return self.current_coords  
^^^^^^^^^^^^^^^^^^^  
RuntimeError: clEnqueueReadBuffer  
  
Error processing trigger "new frame":  
RuntimeError: clEnqueueReadBuffer  
  
File "/home/alex/.local/share/ChimeraX/1.10/lib/python3.11/site-
packages/chimerax/isolde/openmm/openmm_interface.py", line 101, in coords  
return self.current_coords  
^^^^^^^^^^^^^^^^^^^  
  
See log for complete Python traceback.  
  

> isolde sim pause

> isolde sim stop discardTo start

Sim termination reason: None  
reverting to start  
ISOLDE: Checking and correcting nomenclature for (pseudo)symmetric side
chains...  
ISOLDE: stopped sim  




OpenGL version: 4.6 (Core Profile) Mesa 24.2.8-1ubuntu1~24.04.1
OpenGL renderer: Mesa Intel(R) Xe Graphics (TGL GT2)
OpenGL vendor: Intel

Python: 3.11.4
Locale: en_US.UTF-8
Qt version: PyQt6 6.8.1, Qt 6.8.2
Qt runtime version: 6.8.2
Qt platform: xcb

XDG_SESSION_TYPE=wayland
DESKTOP_SESSION=ubuntu
XDG_SESSION_DESKTOP=ubuntu
XDG_CURRENT_DESKTOP=ubuntu:GNOME
GNOME_SETUP_DISPLAY=:1
DISPLAY=:0
WAYLAND_DISPLAY=wayland-0
Manufacturer: Dell Inc.
Model: XPS 13 9310 2-in-1
OS: Ubuntu 24.04
Architecture: 64bit ELF
Virtual Machine: none
CPU: 8 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz
Cache Size: 12288 KB
Memory:
	               total        used        free      shared  buff/cache   available
	Mem:            15Gi       5.3Gi       3.7Gi       1.3Gi       7.6Gi        10Gi
	Swap:          4.0Gi          0B       4.0Gi

Graphics:
	00:02.0 VGA compatible controller [0300]: Intel Corporation TigerLake-LP GT2 [Iris Xe Graphics] [8086:9a49] (rev 01)	
	DeviceName: Onboard - Video	
	Subsystem: Dell TigerLake-LP GT2 [Iris Xe Graphics] [1028:09ff]

Installed Packages:
    alabaster: 1.0.0
    appdirs: 1.4.4
    asttokens: 3.0.0
    babel: 2.17.0
    beautifulsoup4: 4.13.3
    blockdiag: 3.0.0
    blosc2: 3.6.1
    build: 1.2.2.post1
    certifi: 2025.7.14
    cftime: 1.6.4.post1
    charset-normalizer: 3.4.2
    ChimeraX-AddCharge: 1.5.19
    ChimeraX-AddH: 2.2.7
    ChimeraX-AlignmentAlgorithms: 2.0.2
    ChimeraX-AlignmentHdrs: 3.6.1
    ChimeraX-AlignmentMatrices: 2.1
    ChimeraX-Alignments: 2.20.2
    ChimeraX-AlphaFold: 1.0.1
    ChimeraX-AltlocExplorer: 1.1.2
    ChimeraX-AmberInfo: 1.0
    ChimeraX-Aniso: 1.1.4
    ChimeraX-Arrays: 1.1
    ChimeraX-Atomic: 1.60.7
    ChimeraX-AtomicLibrary: 14.1.19
    ChimeraX-AtomSearch: 2.0.1
    ChimeraX-AxesPlanes: 2.4
    ChimeraX-BasicActions: 1.1.3
    ChimeraX-BILD: 1.0
    ChimeraX-BlastProtein: 3.0.0
    ChimeraX-Boltz: 1.0
    ChimeraX-BondRot: 2.0.4
    ChimeraX-BugReporter: 1.0.2
    ChimeraX-BuildStructure: 2.13.1
    ChimeraX-Bumps: 1.0
    ChimeraX-BundleBuilder: 1.5.1
    ChimeraX-ButtonPanel: 1.0.1
    ChimeraX-CageBuilder: 1.0.1
    ChimeraX-CellPack: 1.0
    ChimeraX-Centroids: 1.4
    ChimeraX-ChangeChains: 1.1
    ChimeraX-CheckWaters: 1.5
    ChimeraX-ChemGroup: 2.0.2
    ChimeraX-Clashes: 2.3
    ChimeraX-Clipper: 0.25.1
    ChimeraX-ColorActions: 1.0.5
    ChimeraX-ColorGlobe: 1.0
    ChimeraX-ColorKey: 1.5.8
    ChimeraX-CommandLine: 1.3
    ChimeraX-ConnectStructure: 2.0.1
    ChimeraX-Contacts: 1.0.1
    ChimeraX-Core: 1.10.1
    ChimeraX-CoreFormats: 1.2
    ChimeraX-coulombic: 1.4.5
    ChimeraX-Crosslinks: 1.0
    ChimeraX-Crystal: 1.0
    ChimeraX-CrystalContacts: 1.0.1
    ChimeraX-DataFormats: 1.2.4
    ChimeraX-Dicom: 1.2.7
    ChimeraX-DistMonitor: 1.4.2
    ChimeraX-DockPrep: 1.1.4
    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: 2.5.1
    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: 1.10.1
    ChimeraX-ItemsInspection: 1.0.1
    ChimeraX-IUPAC: 1.0
    ChimeraX-KVFinder: 1.6.2
    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: 2.2.2
    ChimeraX-MCopy: 1.0
    ChimeraX-MDcrds: 2.10.1
    ChimeraX-MedicalToolbar: 1.1
    ChimeraX-Meeting: 1.0.1
    ChimeraX-MLP: 1.1.1
    ChimeraX-mmCIF: 2.16
    ChimeraX-MMTF: 2.2
    ChimeraX-ModelArchive: 1.0
    ChimeraX-Modeller: 1.5.19
    ChimeraX-ModelPanel: 1.5.1
    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: 1.14.1
    ChimeraX-OrthoPick: 1.0.1
    ChimeraX-PDB: 2.7.10
    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: 1.1.3
    ChimeraX-ProfileGrids: 1.1.3
    ChimeraX-PubChem: 2.2
    ChimeraX-ReadPbonds: 1.0.1
    ChimeraX-Registration: 1.1.2
    ChimeraX-RemoteControl: 1.0
    ChimeraX-RenderByAttr: 1.6.3
    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: 2.0.3
    ChimeraX-Segger: 1.0
    ChimeraX-Segment: 1.0.1
    ChimeraX-Segmentations: 3.5.7
    ChimeraX-SelInspector: 1.0
    ChimeraX-SeqView: 2.17.1
    ChimeraX-Shape: 1.1
    ChimeraX-Shell: 1.0.1
    ChimeraX-Shortcuts: 1.2.1
    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: 1.19.1
    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: 2.5.2
    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: 1.45.2
    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: 1.1.5
    ChimeraX-Zone: 1.0.1
    colorama: 0.4.6
    comm: 0.2.2
    contourpy: 1.3.2
    coverage: 7.10.0
    cxservices: 1.2.3
    cycler: 0.12.1
    Cython: 3.0.12
    debugpy: 1.8.15
    decorator: 5.2.1
    distro: 1.9.0
    docutils: 0.21.2
    executing: 2.2.0
    filelock: 3.18.0
    fonttools: 4.59.0
    funcparserlib: 2.0.0a0
    glfw: 2.9.0
    grako: 3.16.5
    h5py: 3.14.0
    html2text: 2024.2.26
    idna: 3.10
    ihm: 2.2
    imagecodecs: 2024.6.1
    imagesize: 1.4.1
    iniconfig: 2.1.0
    ipykernel: 6.29.5
    ipython: 8.26.0
    ipywidgets: 8.1.7
    jedi: 0.19.1
    Jinja2: 3.1.6
    jupyter_client: 8.6.3
    jupyter_core: 5.8.1
    jupyterlab_widgets: 3.0.15
    kiwisolver: 1.4.8
    line_profiler: 4.2.0
    lxml: 5.3.1
    lz4: 4.3.2
    MarkupSafe: 3.0.2
    matplotlib: 3.10.1
    matplotlib-inline: 0.1.7
    msgpack: 1.1.0
    ndindex: 1.10.0
    nest-asyncio: 1.6.0
    netCDF4: 1.6.5
    networkx: 3.3
    nibabel: 5.2.0
    nptyping: 2.5.0
    numexpr: 2.11.0
    numpy: 1.26.4
    nvidia-nvjitlink-cu12: 12.9.86
    OpenMM: 8.2.0
    OpenMM-CUDA-12: 8.2.0
    openvr: 1.26.701
    packaging: 24.2
    ParmEd: 4.2.2
    parso: 0.8.4
    pep517: 0.13.1
    pexpect: 4.9.0
    pickleshare: 0.7.5
    pillow: 10.4.0
    pip: 25.0.1
    pkginfo: 1.11.1
    platformdirs: 4.3.8
    pluggy: 1.6.0
    prompt_toolkit: 3.0.51
    psutil: 7.0.0
    ptyprocess: 0.7.0
    pure_eval: 0.2.3
    py-cpuinfo: 9.0.0
    pycollada: 0.8
    pydicom: 2.4.4
    Pygments: 2.18.0
    pynmrstar: 3.3.5
    pynrrd: 1.0.0
    PyOpenGL: 3.1.9
    PyOpenGL-accelerate: 3.1.9
    pyopenxr: 1.1.4501
    pyparsing: 3.2.3
    pyproject_hooks: 1.2.0
    PyQt6: 6.8.1
    PyQt6-Qt6: 6.8.2
    PyQt6-WebEngine: 6.8.0
    PyQt6-WebEngine-Qt6: 6.8.2
    PyQt6_sip: 13.10.0
    pytest: 8.4.1
    pytest-cov: 6.2.1
    python-dateutil: 2.9.0.post0
    pytz: 2025.2
    pyzmq: 27.0.0
    qtconsole: 5.5.2
    QtPy: 2.4.3
    qtshim: 1.1
    RandomWords: 0.4.0
    requests: 2.32.3
    roman-numerals-py: 3.1.0
    scipy: 1.14.0
    setuptools: 78.1.0
    sfftk-rw: 0.8.1
    six: 1.16.0
    snowballstemmer: 3.0.1
    sortedcontainers: 2.4.0
    soupsieve: 2.7
    Sphinx: 8.2.3
    sphinx-autodoc-typehints: 3.1.0
    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: 0.7.1
    tables: 3.10.2
    tcia_utils: 1.5.1
    tifffile: 2025.3.13
    tinyarray: 1.2.4
    tornado: 6.5.1
    traitlets: 5.14.3
    typing_extensions: 4.14.1
    tzdata: 2025.2
    urllib3: 2.5.0
    wcwidth: 0.2.13
    webcolors: 24.11.1
    wheel: 0.45.1
    wheel-filename: 1.4.2
    widgetsnbextension: 4.0.14

[Eric Pettersen]

Looks like a duplicate of #17493