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Hi Zach,
On 10/03/2015 05:36, Zach Davis wrote:
> I was trying to run the same case with the OpenCL backend--I know,
> I know it's a bit more tenuous--and the simulation progress reached
> 98% before there was a pyopencl error which killed the MPI rank I
> had allocated for the GPU:
>
> (venv) [zdavis@Rahvin cubes]$ mpirun -np 5 ./launcher.sh
> cube_hex24.pyfrm cube.ini
>
> 99.8% [==============================> ] 0.10/0.10 ela: 00:07:04
> rem: 00:00:00Traceback (most recent call last):
>
> File "/Users/zdavis/Applications/PyFR/pyfr/scripts/pyfr", line 38,
> in <module>
>
> main()
>
> File "/Users/zdavis/Applications/PyFR/pyfr/scripts/pyfr", line 32,
> in main
>
> args.process(args)
>
> File "/Users/zdavis/Applications/PyFR/pyfr/scripts/sim.py", line
> 87, in process_run
>
> args, read_pyfr_data(args.mesh), None, Inifile.load(args.cfg)
>
> File
> "/Users/zdavis/Applications/PyFR/venv/lib/python3.4/site-packages/mpmath/ctx_mp.py",
>
>
line 1301, in g
>
> return f(*args, **kwargs)
>
> File "/Users/zdavis/Applications/PyFR/pyfr/scripts/sim.py", line
> 59, in _process_common
>
> solver.run()
>
> File "/Users/zdavis/Applications/PyFR/pyfr/integrators/base.py",
> line 112, in run
>
> solns = self.advance_to(t)
>
> File
> "/Users/zdavis/Applications/PyFR/pyfr/integrators/controllers.py",
> line 79, in advance_to
>
> idxcurr = self.step(self.tcurr, dt)
>
> File
> "/Users/zdavis/Applications/PyFR/pyfr/integrators/steppers.py",
> line 154, in step
>
> rhs(t + dt/2.0, r2, r2)
>
> File
> "/Users/zdavis/Applications/PyFR/pyfr/solvers/baseadvecdiff/system.py",
>
>
line 57, in rhs
>
> runall([q1])
>
> File
> "/Users/zdavis/Applications/PyFR/pyfr/backends/base/backend.py",
> line 183, in runall
>
> self.queue_cls.runall(sequence)
>
> File
> "/Users/zdavis/Applications/PyFR/pyfr/backends/opencl/types.py",
> line 114, in runall
>
> q._exec_nowait()
>
> File
> "/Users/zdavis/Applications/PyFR/pyfr/backends/base/types.py", line
> 303, in _exec_nowait
>
> self._exec_item(*self._items.popleft())
>
> File
> "/Users/zdavis/Applications/PyFR/pyfr/backends/base/types.py", line
> 288, in _exec_item
>
> item.run(self, *args, **kwargs)
>
> File
> "/Users/zdavis/Applications/PyFR/pyfr/backends/opencl/provider.py",
> line 38, in run
>
> fun(queue.cl_queue_comp, (dims[-1],), None, *narglst)
>
> File
> "/Users/zdavis/Applications/PyFR/venv/lib/python3.4/site-packages/pyopencl/__init__.py",
>
>
line 509, in kernel_call
>
> self.set_args(*args)
>
> File
> "/Users/zdavis/Applications/PyFR/venv/lib/python3.4/site-packages/pyopencl/__init__.py",
>
>
line 549, in kernel_set_args
>
> self.set_arg(i, pack(arg_type_char, arg))
>
> struct.error: required argument is not a float
>
> --------------------------------------------------------------------------
>
> MPI_ABORT was invoked on rank 0 in communicator MPI_COMM_WORLD
>
> with errorcode 1.
>
>
> NOTE: invoking MPI_ABORT causes Open MPI to kill all MPI
> processes.
>
> You may or may not see output from other processes, depending on
>
> exactly when Open MPI kills them.
>
> --------------------------------------------------------------------------
>
>
> /Users/zdavis/Applications/PyFR/venv/lib/python3.4/site-packages/pytools/prefork.py:74:
>
>
UserWarning: Prefork server exiting upon apparent death of parent
>
> warn("%s exiting upon apparent death of %s" % (who, partner))
>
>
> Any ideas where this might be coming from? Is it within PyFR, or
> rather something wrong with the pyopencl package?
I have my suspicions. Around here:
<https://github.com/vincentlab/PyFR/blob/develop/pyfr/backends/opencl/provider.py#L38>
can you do:
try:
fun(queue.cl_queue_comp, (dims[-1],), None, *narglst)
except:
print([a.__class__ for a in narglst])
raise
so the plan is to output the types of all of the variables passed.
- From here we can figure out which float is not actually a float.
Regards, Freddie.
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