[BUG]: GAMSPy_integration_example/trnsport_cuopt.ipynb is hardwired to x86-64

[evolvingtech]

Version

25.10

Which installation method(s) does this occur on?

Pip

Describe the bug.

When running all cells in the Notebook and reaching the following cell:

import sys
import gamspy as gp

gp.set_options({"SOLVER_VALIDATION": 0})
transport.solve(solver="cuopt", solver_options=dict(method=1, crossover=0), output=sys.stdout)

The following is generated:

System information: 20 physical cores and 120 Gb physical memory detected
--- Starting compilation
--- __m_9qG6BRHu2GdUXv1zeIw.gms(71) 4 Mb
--- Starting execution: elapsed 0:00:00.000
--- Generating LP model transport
--- __m_9qG6BRHu2GdUXv1zeIw.gms(142) 4 Mb
---   6 rows  7 columns  19 non-zeroes
--- Range statistics (absolute non-zero finite values)
--- RHS       [min, max] : [ 2.750E+02, 6.000E+02] - Zero values observed as well
--- Bound     [min, max] : [        NA,        NA] - Zero values observed as well
--- Matrix    [min, max] : [ 1.260E-01, 1.000E+00]
--- Executing CUOPT (Solvelink=2): elapsed 0:00:00.000
x86_64-binfmt-P: Could not open '/lib64/ld-linux-x86-64.so.2': No such file or directory
--- Reading solution for model transport
--- Executing after solve: elapsed 0:00:00.003
--- __m_9qG6BRHu2GdUXv1zeIw.gms(201) 4 Mb
--- GDX File /tmp/tmp927wssnj/__m_9qG6BRHu2GdUXv1zeIwout.gdx
*** Status: Normal completion
--- Job __m_9qG6BRHu2GdUXv1zeIw.gms Stop 12/07/25 22:31:30 elapsed 0:00:00.003

The full error message is:

---------------------------------------------------------------------------
GamspyException                           Traceback (most recent call last)
Cell In[29], line 5
      2 import gamspy as gp
      4 gp.set_options({"SOLVER_VALIDATION": 0})
----> 5 transport.solve(solver="cuopt", solver_options=dict(method=1, crossover=0), output=sys.stdout)

File [~/jupyter_env/lib/python3.12/site-packages/gamspy/_model.py:1433](http://localhost:8888/lab/tree/cu-opt/git-cuopt-examples/cuopt-examples/GAMSPy_integration_example/jupyter_env/lib/python3.12/site-packages/gamspy/_model.py#line=1432), in Model.solve(self, solver, options, solver_options, freeze_options, output, backend, client, load_symbols)
   1419 options._set_model_info(solver, self.problem, solver_options)
   1421 runner = backend_factory(
   1422     self.container,
   1423     options,
   (...)   1430     load_symbols,
   1431 )
-> 1433 summary = runner.run(relaxed_domain_mapping=False, gams_to_gamspy=True)
   1435 if IS_MIRO_INIT:
   1436     miro._write_default_gdx_miro(self.container)

File [~/jupyter_env/lib/python3.12/site-packages/gamspy/_backend/local.py:76](http://localhost:8888/lab/tree/cu-opt/git-cuopt-examples/cuopt-examples/GAMSPy_integration_example/jupyter_env/lib/python3.12/site-packages/gamspy/_backend/local.py#line=75), in Local.run(self, relaxed_domain_mapping, gams_to_gamspy)
     73 gams_string = self.preprocess()
     75 # Run the model
---> 76 self.execute_gams(gams_string, gams_to_gamspy)
     78 # Synchronize GAMSPy with checkpoint and return a summary
     79 summary = self.postprocess(relaxed_domain_mapping, gams_to_gamspy)

File [~/jupyter_env/lib/python3.12/site-packages/gamspy/_backend/local.py:110](http://localhost:8888/lab/tree/cu-opt/git-cuopt-examples/cuopt-examples/GAMSPy_integration_example/jupyter_env/lib/python3.12/site-packages/gamspy/_backend/local.py#line=109), in Local.execute_gams(self, gams_string, gams_to_gamspy)
    103     message = _customize_exception(
    104         self.options,
    105         self.job_name,
    106         exception.return_code,
    107     )
    109     exception.args = (exception.message + message,)
--> 110     raise exception
    111 finally:
    112     self.container._unsaved_statements = []

File [~/jupyter_env/lib/python3.12/site-packages/gamspy/_backend/local.py:99](http://localhost:8888/lab/tree/cu-opt/git-cuopt-examples/cuopt-examples/GAMSPy_integration_example/jupyter_env/lib/python3.12/site-packages/gamspy/_backend/local.py#line=98), in Local.execute_gams(self, gams_string, gams_to_gamspy)
     94     send_job(
     95         self.container._comm_pair_id, self.job_name, self.pf_file, self.output
     96     )
     98     if not self.is_async() and self.model:
---> 99         self.model._update_model_attributes()
    100         self.container._delete_autogenerated_symbols()
    101 except GamspyException as exception:

File [~/jupyter_env/lib/python3.12/site-packages/gamspy/_model.py:1122](http://localhost:8888/lab/tree/cu-opt/git-cuopt-examples/cuopt-examples/GAMSPy_integration_example/jupyter_env/lib/python3.12/site-packages/gamspy/_model.py#line=1121), in Model._update_model_attributes(self)
   1117         logger.warning(
   1118             f"The solve was interrupted! Solve status: {status.name}. "
   1119             "For further information, see https://gamspy.readthedocs.io/en/latest/reference/gamspy._model.html#gamspy.SolveStatus."
   1120         )
   1121     elif status in ERROR_STATUS:
-> 1122         raise GamspyException(
   1123             f"Solve status: {status.name}. {ERROR_STATUS[status]}",
   1124             status.value,
   1125         )
   1126 else:
   1127     setattr(self, python_attr, data)

GamspyException: Solve status: SystemError. This indicates a completely unknown or unexpected error condition.

=============
Error Summary
=============

**** SOLVER STATUS     13 System Failure
**** MODEL STATUS      13 Error No Solution
**** OBJECTIVE VALUE               NA

 RESOURCE USAGE, LIMIT         NA     10000000000.000
 ITERATION COUNT, LIMIT        NA    2147483647

**** SOLVER DID NOT WRITE A STATUS FILE ****

All the Notebooks in cuopt-examples run fine on the DGX Spark with the exception of GAMSPy_integration_example/trnsport_cuopt.ipynb.

The DGX Spark is based on ARM64 architecture but the code in this Jupyter Notebook seems to have a hardwired dependency on x86-64.

x86_64-binfmt-P: Could not open '/lib64/ld-linux-x86-64.so.2': No such file or directory

Minimum reproducible example

Relevant log output

Environment details

Other/Misc.

No response